/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:36:35,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:36:35,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:36:35,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 21:36:35,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 21:36:36,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 21:36:36,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 21:36:36,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 21:36:36,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 21:36:36,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 21:36:36,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 21:36:36,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 21:36:36,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 21:36:36,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 21:36:36,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 21:36:36,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 21:36:36,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 21:36:36,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 21:36:36,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 21:36:36,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 21:36:36,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 21:36:36,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 21:36:36,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 21:36:36,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 21:36:36,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 21:36:36,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 21:36:36,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 21:36:36,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 21:36:36,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 21:36:36,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 21:36:36,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 21:36:36,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 21:36:36,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 21:36:36,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 21:36:36,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 21:36:36,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 21:36:36,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 21:36:36,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 21:36:36,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 21:36:36,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 21:36:36,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 21:36:36,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 21:36:36,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:36:36,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:36:36,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:36:36,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:36:36,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:36:36,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:36:36,104 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:36:36,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:36:36,105 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:36:36,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:36:36,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:36:36,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:36:36,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:36:36,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:36:36,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:36:36,106 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:36:36,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:36:36,107 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:36:36,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:36:36,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:36:36,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:36:36,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:36:36,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:36:36,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:36:36,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:36:36,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:36:36,109 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:36:36,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:36:36,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:36:36,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:36:36,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:36:36,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:36:36,515 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:36:36,516 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:36:36,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl [2021-07-14 21:36:36,517 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl' [2021-07-14 21:36:36,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:36:36,547 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:36:36,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:36:36,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:36:36,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:36:36,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:36:36,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:36:36,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:36:36,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:36:36,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... [2021-07-14 21:36:36,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:36:36,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:36:36,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:36:36,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:36:36,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:36:36,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:36:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:36:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:36:36,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:36:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:36:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:36:36,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:36:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:36:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:36:36,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:36:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:36:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:36:36,672 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 21:36:36,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:36:36,874 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:36:36,876 INFO L202 PluginConnector]: Adding new model max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:36:36 BoogieIcfgContainer [2021-07-14 21:36:36,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:36:36,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:36:36,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:36:36,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:36:36,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:36:36" (1/2) ... [2021-07-14 21:36:36,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33801b9b and model type max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:36:36, skipping insertion in model container [2021-07-14 21:36:36,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:36:36" (2/2) ... [2021-07-14 21:36:36,892 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array-hom.wvr.bpl [2021-07-14 21:36:36,896 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:36:36,896 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:36:36,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:36:36,897 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:36:36,943 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:36:36,959 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 21:36:37,024 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:36:37,024 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:36:37,024 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:36:37,024 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:36:37,024 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:36:37,024 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:36:37,024 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:36:37,024 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:36:37,120 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:37,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:37,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1056010628, now seen corresponding path program 1 times [2021-07-14 21:36:37,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:37,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382884817] [2021-07-14 21:36:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:37,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:37,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382884817] [2021-07-14 21:36:37,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382884817] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:36:37,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:36:37,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 21:36:37,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593903152] [2021-07-14 21:36:37,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 21:36:37,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:37,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 21:36:37,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 21:36:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:37,276 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:37,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:36:37,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:37,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:37,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:36:37,288 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:37,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:37,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1283631334, now seen corresponding path program 1 times [2021-07-14 21:36:37,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:37,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727001602] [2021-07-14 21:36:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:36:37,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:37,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727001602] [2021-07-14 21:36:37,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727001602] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:36:37,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:36:37,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:36:37,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435036173] [2021-07-14 21:36:37,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:36:37,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:37,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:36:37,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:36:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:37,358 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:37,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) 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) [2021-07-14 21:36:37,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:37,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:37,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 21:36:37,433 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:37,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:37,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1880625638, now seen corresponding path program 1 times [2021-07-14 21:36:37,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:37,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745426196] [2021-07-14 21:36:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:36:37,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:37,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745426196] [2021-07-14 21:36:37,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745426196] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:36:37,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:36:37,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:36:37,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995352910] [2021-07-14 21:36:37,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 21:36:37,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:37,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 21:36:37,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 21:36:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:37,500 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:37,500 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) [2021-07-14 21:36:37,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:37,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:37,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:37,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 21:36:37,563 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:37,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:37,563 INFO L82 PathProgramCache]: Analyzing trace with hash 830293816, now seen corresponding path program 1 times [2021-07-14 21:36:37,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:37,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755099031] [2021-07-14 21:36:37,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:37,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:37,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755099031] [2021-07-14 21:36:37,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755099031] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:37,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896683662] [2021-07-14 21:36:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:36:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:38,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 21:36:38,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:36:38,643 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:36:38,643 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2021-07-14 21:36:38,648 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:38,656 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:38,656 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-07-14 21:36:38,659 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:38,714 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:38,726 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:38,727 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-07-14 21:36:38,735 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:38,743 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:36:38,743 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2021-07-14 21:36:38,745 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:38,793 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:38,802 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-07-14 21:36:38,802 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:133, output treesize:83 [2021-07-14 21:36:38,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:38,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896683662] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:38,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:36:38,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 21:36:38,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286925674] [2021-07-14 21:36:38,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:36:38,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:38,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:36:38,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:36:38,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:38,903 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:38,903 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) [2021-07-14 21:36:38,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:38,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:38,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:38,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:39,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:36:39,418 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:39,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:39,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1021259562, now seen corresponding path program 2 times [2021-07-14 21:36:39,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:39,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917129753] [2021-07-14 21:36:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:39,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:39,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917129753] [2021-07-14 21:36:39,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917129753] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:39,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722448686] [2021-07-14 21:36:39,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:36:39,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:36:39,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:36:39,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 21:36:39,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:36:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:39,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722448686] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:39,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:36:39,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 21:36:39,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984875248] [2021-07-14 21:36:39,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:36:39,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:39,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:36:39,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:36:39,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:39,576 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:39,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:36:39,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:39,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:39,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:39,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:39,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:36:39,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:36:39,954 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:39,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:39,955 INFO L82 PathProgramCache]: Analyzing trace with hash -925346888, now seen corresponding path program 1 times [2021-07-14 21:36:39,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:39,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281778610] [2021-07-14 21:36:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:40,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:40,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281778610] [2021-07-14 21:36:40,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281778610] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:40,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532199337] [2021-07-14 21:36:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) [2021-07-14 21:36:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:36:40,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-14 21:36:40,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:36:41,131 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-07-14 21:36:41,540 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 21:36:41,869 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 49 [2021-07-14 21:36:41,997 INFO L446 ElimStorePlain]: Different costs {1=[A, v_prenex_14], 2=[v_prenex_13, v_prenex_15]} [2021-07-14 21:36:42,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:36:42,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:36:42,004 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:42,122 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2021-07-14 21:36:42,123 INFO L628 ElimStorePlain]: treesize reduction 54, result has 71.7 percent of original size [2021-07-14 21:36:42,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:36:42,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-07-14 21:36:42,129 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:42,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:36:42,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:42,179 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 28 treesize of output 16 [2021-07-14 21:36:42,181 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:42,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:42,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:36:42,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:42,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:42,229 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 28 treesize of output 16 [2021-07-14 21:36:42,230 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:42,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:36:42,234 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:42,234 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 21 treesize of output 13 [2021-07-14 21:36:42,235 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:42,271 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:42,274 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-07-14 21:36:42,274 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:205, output treesize:51 [2021-07-14 21:36:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:42,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532199337] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:42,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:36:42,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:36:42,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351749882] [2021-07-14 21:36:42,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:36:42,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:42,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:36:42,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:36:42,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:42,346 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:42,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:36:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:36:42,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:43,113 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2021-07-14 21:36:43,415 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2021-07-14 21:36:43,610 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-07-14 21:36:43,859 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2021-07-14 21:36:44,062 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-07-14 21:36:44,364 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2021-07-14 21:36:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:36:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:36:44,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:36:44,698 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:44,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:44,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1682038358, now seen corresponding path program 2 times [2021-07-14 21:36:44,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:44,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616905279] [2021-07-14 21:36:44,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:44,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:44,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616905279] [2021-07-14 21:36:44,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616905279] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:44,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357189495] [2021-07-14 21:36:44,750 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 [2021-07-14 21:36:44,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:36:44,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:36:44,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:36:44,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:36:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:44,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357189495] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:44,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:36:44,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 21:36:44,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189128024] [2021-07-14 21:36:44,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 21:36:44,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:44,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 21:36:44,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-07-14 21:36:44,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:44,898 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:44,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:36:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:36:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:36:45,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-07-14 21:36:45,354 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:36:45,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:36:45,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1511259848, now seen corresponding path program 3 times [2021-07-14 21:36:45,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:36:45,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326646604] [2021-07-14 21:36:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:36:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:36:46,018 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2021-07-14 21:36:46,277 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2021-07-14 21:36:46,416 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-07-14 21:36:46,549 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-07-14 21:36:46,696 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2021-07-14 21:36:46,860 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2021-07-14 21:36:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:46,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:36:46,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326646604] [2021-07-14 21:36:46,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326646604] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:46,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420167596] [2021-07-14 21:36:46,939 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 [2021-07-14 21:36:46,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 21:36:46,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:36:46,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-14 21:36:46,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:36:47,483 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-07-14 21:36:47,684 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-14 21:36:48,218 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-14 21:36:48,975 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 103 [2021-07-14 21:36:49,686 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2021-07-14 21:36:49,934 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_52], 1=[v_prenex_64], 5=[A, v_prenex_54, v_prenex_53, v_prenex_63, v_prenex_62, v_prenex_56, v_prenex_55, v_prenex_59]} [2021-07-14 21:36:49,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:36:49,944 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:50,221 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 125 [2021-07-14 21:36:50,221 INFO L628 ElimStorePlain]: treesize reduction 163, result has 66.9 percent of original size [2021-07-14 21:36:50,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:36:50,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-07-14 21:36:50,231 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:50,352 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 21:36:50,352 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:50,352 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-07-14 21:36:50,352 INFO L518 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination [2021-07-14 21:36:50,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:50,374 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:36:50,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:36:50,376 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:50,492 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-07-14 21:36:50,492 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:50,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:50,511 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:50,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 35 [2021-07-14 21:36:50,516 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:50,638 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-07-14 21:36:50,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:50,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:50,664 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-07-14 21:36:50,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 31 [2021-07-14 21:36:50,667 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:50,792 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-14 21:36:50,792 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:50,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:50,830 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:50,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 38 [2021-07-14 21:36:50,834 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:50,981 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-07-14 21:36:50,981 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:50,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:50,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:51,008 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:36:51,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 24 [2021-07-14 21:36:51,011 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:51,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:51,030 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:36:51,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 27 [2021-07-14 21:36:51,032 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:51,151 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-07-14 21:36:51,152 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:51,158 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:36:51,171 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:36:51,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:36:51,172 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:36:51,280 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-07-14 21:36:51,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:36:51,294 INFO L550 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 10 dim-1 vars, End of recursive call: and 9 xjuncts. [2021-07-14 21:36:51,295 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 26 variables, input treesize:506, output treesize:105 [2021-07-14 21:36:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:36:51,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420167596] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:36:51,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:36:51,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 25 [2021-07-14 21:36:51,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577783274] [2021-07-14 21:36:51,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:36:51,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:36:51,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:36:51,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:36:51,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:51,405 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:36:51,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:36:51,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:36:51,921 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2021-07-14 21:36:52,121 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 42 [2021-07-14 21:36:52,364 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2021-07-14 21:36:52,899 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 64 [2021-07-14 21:36:53,287 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 74 [2021-07-14 21:36:53,704 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 109 [2021-07-14 21:36:54,337 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 91 [2021-07-14 21:36:55,173 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 88 [2021-07-14 21:36:56,051 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 141 [2021-07-14 21:36:56,991 WARN L205 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 120 [2021-07-14 21:36:58,079 WARN L205 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 139 [2021-07-14 21:37:00,289 WARN L205 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 236 DAG size of output: 176 [2021-07-14 21:37:00,504 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-07-14 21:37:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:37:00,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:37:00,739 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:37:00,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:37:00,739 INFO L82 PathProgramCache]: Analyzing trace with hash 104008918, now seen corresponding path program 4 times [2021-07-14 21:37:00,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:37:00,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370153231] [2021-07-14 21:37:00,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:37:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:37:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:37:00,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:37:00,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370153231] [2021-07-14 21:37:00,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370153231] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:37:00,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840897676] [2021-07-14 21:37:00,827 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 [2021-07-14 21:37:00,854 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:37:00,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:37:00,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 21:37:00,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:37:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:37:00,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840897676] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:37:00,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:37:00,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:37:00,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396457721] [2021-07-14 21:37:00,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:37:00,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:37:00,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:37:00,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:37:00,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:37:00,978 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:37:00,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:37:00,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:37:00,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:37:00,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:37:00,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:37:00,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:37:00,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:37:00,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:37:00,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:37:00,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:37:01,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:37:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:37:01,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-07-14 21:37:01,466 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:37:01,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:37:01,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1874096200, now seen corresponding path program 5 times [2021-07-14 21:37:01,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:37:01,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504422539] [2021-07-14 21:37:01,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:37:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:37:02,279 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-07-14 21:37:02,871 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 103 [2021-07-14 21:37:03,473 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 102 [2021-07-14 21:37:03,873 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-07-14 21:37:04,247 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 85 [2021-07-14 21:37:04,414 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 51 [2021-07-14 21:37:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:37:04,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:37:04,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504422539] [2021-07-14 21:37:04,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504422539] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:37:04,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529973723] [2021-07-14 21:37:04,702 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 [2021-07-14 21:37:04,737 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 21:37:04,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:37:04,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 21:37:04,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:37:05,370 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-14 21:37:06,018 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-07-14 21:37:07,671 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 21:37:09,748 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 484 [2021-07-14 21:37:13,603 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 519 DAG size of output: 485 [2021-07-14 21:37:16,858 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 525 DAG size of output: 489 [2021-07-14 21:37:19,234 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 488 DAG size of output: 333 [2021-07-14 21:37:19,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,508 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:19,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:19,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:37:19,529 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:19,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:19,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:19,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2021-07-14 21:37:19,554 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:20,779 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 417 DAG size of output: 394 [2021-07-14 21:37:20,779 INFO L628 ElimStorePlain]: treesize reduction 118, result has 89.9 percent of original size [2021-07-14 21:37:20,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:20,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:20,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:37:20,812 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:20,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:20,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:20,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:37:20,835 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:21,422 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 383 [2021-07-14 21:37:21,422 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:21,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:21,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:21,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:37:21,446 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:22,086 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2021-07-14 21:37:22,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:22,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:22,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:22,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:22,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:22,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:37:22,132 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:22,611 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2021-07-14 21:37:22,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:22,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:22,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:22,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:22,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:22,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:22,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:37:22,653 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:23,154 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2021-07-14 21:37:23,155 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:23,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:23,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:23,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:23,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:37:23,177 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:23,647 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2021-07-14 21:37:23,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:23,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:37:23,668 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:24,133 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2021-07-14 21:37:24,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:24,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:24,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:24,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:24,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:24,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:37:24,154 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:24,600 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2021-07-14 21:37:24,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:24,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:24,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:24,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:24,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:24,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:37:24,619 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:25,041 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2021-07-14 21:37:25,041 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,055 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:37:25,059 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:25,458 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2021-07-14 21:37:25,458 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:25,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:25,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-07-14 21:37:25,476 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:25,846 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2021-07-14 21:37:25,847 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:25,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:25,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:37:25,864 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:26,220 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-07-14 21:37:26,220 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,236 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:26,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:37:26,239 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:26,585 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2021-07-14 21:37:26,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:37:26,602 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:26,939 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-07-14 21:37:26,939 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:26,951 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:26,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:37:26,955 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:27,260 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-07-14 21:37:27,260 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:27,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:27,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:37:27,275 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:27,571 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-07-14 21:37:27,571 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:27,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:37:27,587 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:27,864 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2021-07-14 21:37:27,865 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:27,875 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:37:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:27,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:37:27,879 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:28,139 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-07-14 21:37:28,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:28,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:28,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:28,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:28,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:37:28,154 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:28,412 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-07-14 21:37:28,412 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:28,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:28,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:28,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:37:28,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:37:28,428 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:37:28,669 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-07-14 21:37:28,669 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:37:28,682 INFO L550 ElimStorePlain]: Start of recursive call 1: 40 dim-0 vars, 20 dim-1 vars, End of recursive call: and 14 xjuncts. [2021-07-14 21:37:28,682 INFO L247 ElimStorePlain]: Needed 23 recursive calls to eliminate 60 variables, input treesize:1229, output treesize:147 [2021-07-14 21:37:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:37:28,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529973723] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:37:28,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:37:28,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2021-07-14 21:37:28,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548292129] [2021-07-14 21:37:28,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 21:37:28,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:37:28,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 21:37:28,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2021-07-14 21:37:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:37:28,832 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:37:28,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:37:28,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:37:29,508 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2021-07-14 21:37:29,998 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2021-07-14 21:37:30,415 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-07-14 21:37:30,765 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 83 [2021-07-14 21:37:31,265 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 89 [2021-07-14 21:37:33,155 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 204 DAG size of output: 163 [2021-07-14 21:37:37,139 WARN L205 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 569 DAG size of output: 266 [2021-07-14 21:37:38,648 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 163 DAG size of output: 125 [2021-07-14 21:37:41,832 WARN L205 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 296 DAG size of output: 261 [2021-07-14 21:37:43,892 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 238 DAG size of output: 167 [2021-07-14 21:37:54,699 WARN L205 SmtUtils]: Spent 10.54 s on a formula simplification. DAG size of input: 728 DAG size of output: 528 [2021-07-14 21:37:59,649 WARN L205 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 325 DAG size of output: 262 [2021-07-14 21:38:00,037 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-07-14 21:38:00,569 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2021-07-14 21:38:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:38:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:38:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:38:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:38:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:38:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:38:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:38:00,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:38:00,839 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:38:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:38:00,839 INFO L82 PathProgramCache]: Analyzing trace with hash 415734870, now seen corresponding path program 6 times [2021-07-14 21:38:00,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:38:00,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168864226] [2021-07-14 21:38:00,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:38:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:00,929 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:00,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:38:00,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168864226] [2021-07-14 21:38:00,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168864226] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:38:00,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858662582] [2021-07-14 21:38:00,930 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 [2021-07-14 21:38:00,961 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 21:38:00,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:38:00,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:38:00,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:38:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:01,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858662582] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:38:01,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:38:01,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-07-14 21:38:01,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028340301] [2021-07-14 21:38:01,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:38:01,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:38:01,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:38:01,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:38:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:01,110 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:38:01,110 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:38:01,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:38:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:38:01,690 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:38:01,691 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:38:01,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:38:01,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1341800248, now seen corresponding path program 7 times [2021-07-14 21:38:01,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:38:01,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774354060] [2021-07-14 21:38:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:38:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:02,290 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2021-07-14 21:38:02,678 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2021-07-14 21:38:02,845 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 184 [2021-07-14 21:38:03,599 WARN L205 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 138 [2021-07-14 21:38:03,739 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 183 [2021-07-14 21:38:04,499 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2021-07-14 21:38:04,612 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 154 [2021-07-14 21:38:05,077 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 110 [2021-07-14 21:38:05,669 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 105 [2021-07-14 21:38:06,056 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2021-07-14 21:38:06,299 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-07-14 21:38:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:06,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:38:06,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774354060] [2021-07-14 21:38:06,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774354060] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:38:06,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392896804] [2021-07-14 21:38:06,464 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 [2021-07-14 21:38:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:06,502 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-14 21:38:06,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:38:07,111 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-07-14 21:38:07,698 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-14 21:38:09,133 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 223 [2021-07-14 21:38:10,596 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 361 [2021-07-14 21:38:14,984 WARN L205 SmtUtils]: Spent 3.64 s on a formula simplification that was a NOOP. DAG size: 434 [2021-07-14 21:38:21,593 WARN L205 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 886 DAG size of output: 365 [2021-07-14 21:38:28,378 WARN L205 SmtUtils]: Spent 5.46 s on a formula simplification. DAG size of input: 402 DAG size of output: 378 [2021-07-14 21:38:34,955 WARN L205 SmtUtils]: Spent 5.05 s on a formula simplification. DAG size of input: 499 DAG size of output: 472 [2021-07-14 21:38:41,885 WARN L205 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 535 DAG size of output: 502 [2021-07-14 21:38:42,977 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_380, v_prenex_381, v_prenex_360, v_prenex_398, v_prenex_399, v_prenex_367, v_prenex_358, v_prenex_359], 9=[v_prenex_382, v_prenex_361, v_prenex_383, v_prenex_362, v_prenex_384, v_prenex_363, v_prenex_385, v_prenex_364, v_prenex_386, v_prenex_365, v_prenex_387, v_prenex_388, v_prenex_366, v_prenex_389, v_prenex_400, v_prenex_368, v_prenex_390, v_prenex_371, v_prenex_393, v_prenex_372, v_prenex_394, v_prenex_395, v_prenex_373, v_prenex_374, v_prenex_396, v_prenex_375, v_prenex_397, v_prenex_376, v_prenex_355, v_prenex_377, v_prenex_356, v_prenex_378, v_prenex_379, v_prenex_357, A]} [2021-07-14 21:38:43,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:38:43,050 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:46,810 WARN L205 SmtUtils]: Spent 3.76 s on a formula simplification. DAG size of input: 865 DAG size of output: 749 [2021-07-14 21:38:46,812 INFO L628 ElimStorePlain]: treesize reduction 493, result has 80.7 percent of original size [2021-07-14 21:38:46,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:38:46,865 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:49,489 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 739 DAG size of output: 601 [2021-07-14 21:38:49,490 INFO L628 ElimStorePlain]: treesize reduction 406, result has 80.0 percent of original size [2021-07-14 21:38:49,490 INFO L518 ElimStorePlain]: Eliminatee v_prenex_360 vanished before elimination [2021-07-14 21:38:49,490 INFO L518 ElimStorePlain]: Eliminatee v_prenex_398 vanished before elimination [2021-07-14 21:38:49,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:38:49,525 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:50,784 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 592 [2021-07-14 21:38:50,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:50,785 INFO L518 ElimStorePlain]: Eliminatee v_prenex_367 vanished before elimination [2021-07-14 21:38:50,785 INFO L518 ElimStorePlain]: Eliminatee v_prenex_358 vanished before elimination [2021-07-14 21:38:50,785 INFO L518 ElimStorePlain]: Eliminatee v_prenex_359 vanished before elimination [2021-07-14 21:38:50,785 INFO L518 ElimStorePlain]: Eliminatee v_prenex_382 vanished before elimination [2021-07-14 21:38:50,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:50,865 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:38:50,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:38:50,867 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:52,128 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 587 [2021-07-14 21:38:52,128 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:52,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:52,199 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:52,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:38:52,205 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:53,329 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 581 [2021-07-14 21:38:53,329 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:53,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:53,422 INFO L354 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2021-07-14 21:38:53,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 45 [2021-07-14 21:38:53,424 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:54,499 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 577 [2021-07-14 21:38:54,499 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:54,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:54,580 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:38:54,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:38:54,582 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:55,681 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 570 [2021-07-14 21:38:55,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:55,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:55,776 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:38:55,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:38:55,778 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:56,870 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 564 [2021-07-14 21:38:56,871 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:56,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:56,948 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:38:56,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:38:56,950 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:57,995 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 557 [2021-07-14 21:38:57,995 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:58,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:58,063 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:58,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:38:58,096 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:59,132 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 552 [2021-07-14 21:38:59,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:59,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:38:59,248 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:38:59,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:38:59,250 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:00,278 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 545 [2021-07-14 21:39:00,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:00,300 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:00,343 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:00,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:39:00,354 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:01,404 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 553 [2021-07-14 21:39:01,404 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:01,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:01,478 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:01,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:39:01,479 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:02,520 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 548 [2021-07-14 21:39:02,521 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:02,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:02,599 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:02,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:39:02,601 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:03,631 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 542 [2021-07-14 21:39:03,631 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:03,631 INFO L518 ElimStorePlain]: Eliminatee v_prenex_366 vanished before elimination [2021-07-14 21:39:03,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:03,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:03,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:39:03,709 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:05,785 WARN L205 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 542 DAG size of output: 541 [2021-07-14 21:39:05,786 INFO L628 ElimStorePlain]: treesize reduction 11, result has 99.2 percent of original size [2021-07-14 21:39:05,808 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:05,858 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:05,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:39:05,865 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:06,892 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 537 [2021-07-14 21:39:06,892 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:06,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:06,977 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:39:06,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:39:06,986 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:08,037 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 537 [2021-07-14 21:39:08,037 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:08,058 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:08,108 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:08,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:39:08,110 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:09,130 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 530 [2021-07-14 21:39:09,130 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:09,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:09,211 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-07-14 21:39:09,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 50 treesize of output 52 [2021-07-14 21:39:09,215 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,258 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 525 [2021-07-14 21:39:10,259 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,337 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:10,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 41 [2021-07-14 21:39:10,339 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,399 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:10,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 36 treesize of output 38 [2021-07-14 21:39:10,403 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:11,378 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2021-07-14 21:39:11,379 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:11,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:11,458 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:11,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:39:11,460 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:12,391 WARN L205 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2021-07-14 21:39:12,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:12,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:12,463 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:12,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:39:12,464 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:13,400 WARN L205 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 502 [2021-07-14 21:39:13,400 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:13,400 INFO L518 ElimStorePlain]: Eliminatee v_prenex_395 vanished before elimination [2021-07-14 21:39:13,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:13,467 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:13,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:39:13,469 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:14,313 WARN L205 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2021-07-14 21:39:14,313 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:14,314 INFO L518 ElimStorePlain]: Eliminatee v_prenex_374 vanished before elimination [2021-07-14 21:39:14,314 INFO L518 ElimStorePlain]: Eliminatee v_prenex_396 vanished before elimination [2021-07-14 21:39:14,314 INFO L518 ElimStorePlain]: Eliminatee v_prenex_375 vanished before elimination [2021-07-14 21:39:14,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:14,364 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:14,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:39:14,370 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:15,200 WARN L205 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 483 [2021-07-14 21:39:15,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:15,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:15,257 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:15,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:39:15,258 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:16,105 WARN L205 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2021-07-14 21:39:16,105 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:16,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:16,161 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:16,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:39:16,169 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:17,015 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2021-07-14 21:39:17,015 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:17,015 INFO L518 ElimStorePlain]: Eliminatee v_prenex_377 vanished before elimination [2021-07-14 21:39:17,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:17,087 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:39:17,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:39:17,096 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:17,923 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2021-07-14 21:39:17,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:17,924 INFO L518 ElimStorePlain]: Eliminatee v_prenex_378 vanished before elimination [2021-07-14 21:39:17,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:17,976 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:17,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:39:17,987 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:18,834 WARN L205 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2021-07-14 21:39:18,834 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:18,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:18,887 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:18,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:39:18,889 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:19,728 WARN L205 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2021-07-14 21:39:19,728 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:19,744 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:19,782 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:39:19,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:39:19,784 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:20,615 WARN L205 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2021-07-14 21:39:20,615 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:20,682 INFO L550 ElimStorePlain]: Start of recursive call 1: 70 dim-0 vars, 43 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-07-14 21:39:20,682 INFO L247 ElimStorePlain]: Needed 32 recursive calls to eliminate 113 variables, input treesize:2579, output treesize:253 [2021-07-14 21:39:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:20,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392896804] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:20,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:20,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 21:39:20,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143542634] [2021-07-14 21:39:20,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 21:39:20,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:20,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 21:39:20,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=945, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 21:39:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:20,900 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:20,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 33 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:39:20,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:21,899 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2021-07-14 21:39:22,275 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 53 [2021-07-14 21:39:22,781 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2021-07-14 21:39:23,354 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 63 [2021-07-14 21:39:23,736 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 56 [2021-07-14 21:39:24,240 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 65 [2021-07-14 21:39:25,381 WARN L205 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 137 [2021-07-14 21:39:27,208 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 221 DAG size of output: 162 [2021-07-14 21:39:28,866 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 228 DAG size of output: 150 [2021-07-14 21:39:31,429 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 347 DAG size of output: 231 [2021-07-14 21:39:34,339 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 483 DAG size of output: 368 [2021-07-14 21:39:40,391 WARN L205 SmtUtils]: Spent 5.80 s on a formula simplification. DAG size of input: 390 DAG size of output: 259 [2021-07-14 21:39:44,379 WARN L205 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 379 DAG size of output: 243 [2021-07-14 21:39:52,527 WARN L205 SmtUtils]: Spent 7.82 s on a formula simplification. DAG size of input: 532 DAG size of output: 442 [2021-07-14 21:39:56,967 WARN L205 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 515 DAG size of output: 377 [2021-07-14 21:40:05,895 WARN L205 SmtUtils]: Spent 8.38 s on a formula simplification. DAG size of input: 801 DAG size of output: 357 [2021-07-14 21:40:19,458 WARN L205 SmtUtils]: Spent 13.20 s on a formula simplification. DAG size of input: 588 DAG size of output: 450 [2021-07-14 21:40:19,818 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:40:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:40:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:20,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:20,119 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:20,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:20,119 INFO L82 PathProgramCache]: Analyzing trace with hash -331166506, now seen corresponding path program 8 times [2021-07-14 21:40:20,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:20,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006187599] [2021-07-14 21:40:20,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:20,227 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:20,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:20,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006187599] [2021-07-14 21:40:20,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006187599] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:20,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119729346] [2021-07-14 21:40:20,227 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 [2021-07-14 21:40:20,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:40:20,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:40:20,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 21:40:20,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:20,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119729346] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:20,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:40:20,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2021-07-14 21:40:20,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643187087] [2021-07-14 21:40:20,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:40:20,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:20,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:40:20,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:40:20,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:20,453 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:20,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:20,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:40:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:40:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:40:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:40:21,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:21,143 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:21,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:21,143 INFO L82 PathProgramCache]: Analyzing trace with hash 829116344, now seen corresponding path program 9 times [2021-07-14 21:40:21,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:21,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462569700] [2021-07-14 21:40:21,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:22,134 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 32 [2021-07-14 21:40:22,529 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 63 [2021-07-14 21:40:23,326 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 89 [2021-07-14 21:40:23,498 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 225 [2021-07-14 21:40:24,528 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 117 [2021-07-14 21:40:24,651 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 260 [2021-07-14 21:40:26,883 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 260 DAG size of output: 173 [2021-07-14 21:40:27,000 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 258 [2021-07-14 21:40:28,581 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 258 DAG size of output: 171 [2021-07-14 21:40:28,690 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 243 [2021-07-14 21:40:30,046 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 243 DAG size of output: 170 [2021-07-14 21:40:31,426 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 239 DAG size of output: 166 [2021-07-14 21:40:31,923 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 108 [2021-07-14 21:40:32,342 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 77 [2021-07-14 21:40:32,598 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2021-07-14 21:40:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:32,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:32,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462569700] [2021-07-14 21:40:32,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462569700] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:32,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537745060] [2021-07-14 21:40:32,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:32,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-14 21:40:32,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:40:32,843 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 63 conjunts are in the unsatisfiable core [2021-07-14 21:40:32,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:33,734 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-14 21:40:33,968 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 21:40:34,522 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 216 [2021-07-14 21:40:34,677 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 279 [2021-07-14 21:40:34,799 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 279 [2021-07-14 21:41:42,628 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification that was a NOOP. DAG size: 279 [2021-07-14 21:41:42,836 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 281 [2021-07-14 21:41:43,445 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 408 [2021-07-14 21:41:43,588 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2021-07-14 21:41:43,721 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2021-07-14 21:41:43,860 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1690 DAG size of output: 1690 [2021-07-14 21:41:44,034 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1945 [2021-07-14 21:41:44,157 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1945 [2021-07-14 21:42:09,853 WARN L205 SmtUtils]: Spent 24.14 s on a formula simplification. DAG size of input: 1945 DAG size of output: 1229 [2021-07-14 21:42:12,225 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1153 DAG size of output: 1153 [2021-07-14 21:42:12,435 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1312 DAG size of output: 1312 [2021-07-14 21:42:12,604 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 1312 DAG size of output: 1312 [2021-07-14 21:42:37,188 WARN L205 SmtUtils]: Spent 23.55 s on a formula simplification. DAG size of input: 1312 DAG size of output: 1240 [2021-07-14 21:42:39,759 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1270 DAG size of output: 1270 [2021-07-14 21:42:40,010 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 1445 DAG size of output: 1445 [2021-07-14 21:42:40,215 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 1445 DAG size of output: 1445 [2021-07-14 21:42:40,359 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 1445 [2021-07-14 21:43:07,910 WARN L205 SmtUtils]: Spent 26.59 s on a formula simplification. DAG size of input: 1445 DAG size of output: 1345 [2021-07-14 21:43:09,726 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1355 DAG size of output: 1355 [2021-07-14 21:43:10,572 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1321 DAG size of output: 1321 [2021-07-14 21:43:10,835 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 1502 DAG size of output: 1502 [2021-07-14 21:43:11,056 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 1502 DAG size of output: 1502 [2021-07-14 21:43:11,213 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 1502 [2021-07-14 21:43:25,524 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-14 21:43:25,525 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-14 21:43:25,726 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:43:25,726 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-07-14 21:43:25,730 INFO L168 Benchmark]: Toolchain (without parser) took 409183.25 ms. Allocated memory was 245.4 MB in the beginning and 744.5 MB in the end (delta: 499.1 MB). Free memory was 224.7 MB in the beginning and 305.2 MB in the end (delta: -80.5 MB). Peak memory consumption was 459.5 MB. Max. memory is 8.0 GB. [2021-07-14 21:43:25,731 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 245.4 MB. Free memory was 225.9 MB in the beginning and 225.8 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 21:43:25,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 245.4 MB. Free memory was 224.6 MB in the beginning and 223.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 21:43:25,731 INFO L168 Benchmark]: Boogie Preprocessor took 12.72 ms. Allocated memory is still 245.4 MB. Free memory was 223.2 MB in the beginning and 222.2 MB in the end (delta: 993.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 21:43:25,731 INFO L168 Benchmark]: RCFGBuilder took 284.16 ms. Allocated memory is still 245.4 MB. Free memory was 222.1 MB in the beginning and 209.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 21:43:25,731 INFO L168 Benchmark]: TraceAbstraction took 408842.57 ms. Allocated memory was 245.4 MB in the beginning and 744.5 MB in the end (delta: 499.1 MB). Free memory was 208.7 MB in the beginning and 305.2 MB in the end (delta: -96.5 MB). Peak memory consumption was 443.8 MB. Max. memory is 8.0 GB. [2021-07-14 21:43:25,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 245.4 MB. Free memory was 225.9 MB in the beginning and 225.8 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 245.4 MB. Free memory was 224.6 MB in the beginning and 223.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.72 ms. Allocated memory is still 245.4 MB. Free memory was 223.2 MB in the beginning and 222.2 MB in the end (delta: 993.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 284.16 ms. Allocated memory is still 245.4 MB. Free memory was 222.1 MB in the beginning and 209.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 408842.57 ms. Allocated memory was 245.4 MB in the beginning and 744.5 MB in the end (delta: 499.1 MB). Free memory was 208.7 MB in the beginning and 305.2 MB in the end (delta: -96.5 MB). Peak memory consumption was 443.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...