/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/chl/array-int-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 13:06:24,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 13:06:24,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 13:06:24,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 13:06:24,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 13:06:24,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 13:06:24,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 13:06:24,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 13:06:24,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 13:06:24,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 13:06:24,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 13:06:24,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 13:06:24,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 13:06:24,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 13:06:24,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 13:06:24,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 13:06:24,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 13:06:24,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 13:06:24,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 13:06:24,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 13:06:24,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 13:06:24,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 13:06:24,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 13:06:24,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 13:06:24,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-17 13:06:24,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-17 13:06:24,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-17 13:06:24,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-17 13:06:24,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-17 13:06:24,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-17 13:06:24,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 13:06:24,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 13:06:24,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 13:06:24,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 13:06:24,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 13:06:24,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 13:06:24,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 13:06:24,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-17 13:06:24,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 13:06:24,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 13:06:24,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 13:06:24,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 13:06:24,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 13:06:24,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 13:06:24,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 13:06:24,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 13:06:24,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 13:06:24,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 13:06:24,958 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 13:06:24,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 13:06:24,958 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 13:06:24,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 13:06:24,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 13:06:24,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 13:06:24,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 13:06:24,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 13:06:24,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 13:06:24,959 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 13:06:24,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 13:06:24,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 13:06:24,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 13:06:24,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 13:06:24,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 13:06:24,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 13:06:24,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 13:06:24,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 13:06:24,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 13:06:24,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 13:06:24,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 13:06:24,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 13:06:24,961 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 13:06:24,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 13:06:24,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 13:06:24,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 13:06:24,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 13:06:24,962 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 13:06:24,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 13:06:24,962 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 13:06:25,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 13:06:25,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 13:06:25,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 13:06:25,275 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 13:06:25,277 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 13:06:25,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl [2021-06-17 13:06:25,293 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl' [2021-06-17 13:06:25,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 13:06:25,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 13:06:25,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 13:06:25,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 13:06:25,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 13:06:25,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 13:06:25,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 13:06:25,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 13:06:25,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 13:06:25,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... [2021-06-17 13:06:25,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 13:06:25,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 13:06:25,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 13:06:25,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 13:06:25,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 13:06:25,456 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 13:06:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 13:06:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 13:06:25,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 13:06:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 13:06:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 13:06:25,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 13:06:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 13:06:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 13:06:25,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 13:06:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 13:06:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 13:06:25,459 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 13:06:25,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 13:06:25,810 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-06-17 13:06:25,811 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-17 13:06:25,811 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-17 13:06:25,811 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-06-17 13:06:25,813 INFO L202 PluginConnector]: Adding new model array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:06:25 BoogieIcfgContainer [2021-06-17 13:06:25,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 13:06:25,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 13:06:25,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 13:06:25,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 13:06:25,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:06:25" (1/2) ... [2021-06-17 13:06:25,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0e66e5 and model type array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 01:06:25, skipping insertion in model container [2021-06-17 13:06:25,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:06:25" (2/2) ... [2021-06-17 13:06:25,819 INFO L111 eAbstractionObserver]: Analyzing ICFG array-int-subst.wvr.bpl [2021-06-17 13:06:25,824 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 13:06:25,824 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 13:06:25,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 13:06:25,825 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 13:06:25,851 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 13:06:25,869 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 13:06:25,957 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 13:06:25,957 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 13:06:25,957 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 13:06:25,957 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 13:06:25,957 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 13:06:25,957 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 13:06:25,957 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 13:06:25,958 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 13:06:26,106 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:26,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:26,113 INFO L82 PathProgramCache]: Analyzing trace with hash 830310370, now seen corresponding path program 1 times [2021-06-17 13:06:26,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:26,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743665650] [2021-06-17 13:06:26,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:26,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:26,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743665650] [2021-06-17 13:06:26,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743665650] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 13:06:26,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 13:06:26,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-17 13:06:26,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257903161] [2021-06-17 13:06:26,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 13:06:26,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:26,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 13:06:26,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-17 13:06:26,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:26,365 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:26,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:26,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:26,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:26,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 13:06:26,463 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:26,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:26,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1923518714, now seen corresponding path program 1 times [2021-06-17 13:06:26,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:26,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378651070] [2021-06-17 13:06:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 13:06:26,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:26,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378651070] [2021-06-17 13:06:26,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378651070] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:26,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72510827] [2021-06-17 13:06:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:26,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 13:06:26,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:26,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72510827] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:26,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:26,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-17 13:06:26,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913092429] [2021-06-17 13:06:26,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 13:06:26,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:26,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 13:06:26,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-17 13:06:26,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:26,964 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:26,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:26,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:26,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:27,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:27,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:27,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:27,429 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:27,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:27,430 INFO L82 PathProgramCache]: Analyzing trace with hash 501122194, now seen corresponding path program 1 times [2021-06-17 13:06:27,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:27,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716137437] [2021-06-17 13:06:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:28,089 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 31 [2021-06-17 13:06:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:28,302 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:28,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716137437] [2021-06-17 13:06:28,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716137437] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:28,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519587295] [2021-06-17 13:06:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:28,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-17 13:06:28,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:28,515 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:28,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2021-06-17 13:06:28,531 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:28,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:28,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:28,540 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:28,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:28,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2021-06-17 13:06:28,549 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:28,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2021-06-17 13:06:28,568 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:28,613 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:28,615 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:28,616 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:151, output treesize:117 [2021-06-17 13:06:28,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2021-06-17 13:06:28,994 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:28,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2021-06-17 13:06:29,001 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:29,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-06-17 13:06:29,012 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:29,065 INFO L628 ElimStorePlain]: treesize reduction 46, result has 53.5 percent of original size [2021-06-17 13:06:29,067 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:29,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-06-17 13:06:29,076 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:29,091 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:29,092 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-06-17 13:06:29,093 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:29,093 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:158, output treesize:32 [2021-06-17 13:06:29,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:29,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519587295] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:29,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:29,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-06-17 13:06:29,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116107574] [2021-06-17 13:06:29,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 13:06:29,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:29,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 13:06:29,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-06-17 13:06:29,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:29,156 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:29,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:29,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:29,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:29,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:29,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:29,653 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:29,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:29,654 INFO L82 PathProgramCache]: Analyzing trace with hash 50763668, now seen corresponding path program 2 times [2021-06-17 13:06:29,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:29,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717812303] [2021-06-17 13:06:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:29,744 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 13:06:29,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:29,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717812303] [2021-06-17 13:06:29,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717812303] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:29,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696281785] [2021-06-17 13:06:29,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:29,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:06:29,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:29,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-17 13:06:29,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:29,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-06-17 13:06:29,915 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:29,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-06-17 13:06:29,920 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:29,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:29,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2021-06-17 13:06:29,941 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 13:06:29,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:29,958 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:06:29,958 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:47, output treesize:27 [2021-06-17 13:06:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 13:06:30,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696281785] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:30,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:30,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-06-17 13:06:30,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394083100] [2021-06-17 13:06:30,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 13:06:30,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:30,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 13:06:30,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-06-17 13:06:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:30,022 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:30,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:30,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:30,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:30,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:30,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:30,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:30,457 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:30,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:30,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1706099914, now seen corresponding path program 3 times [2021-06-17 13:06:30,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:30,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263811594] [2021-06-17 13:06:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:30,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:30,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263811594] [2021-06-17 13:06:30,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263811594] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:30,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089723514] [2021-06-17 13:06:30,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:30,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-17 13:06:30,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:30,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-17 13:06:30,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:30,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:30,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:30,752 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:30,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:30,757 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:30,773 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:30,774 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:06:30,774 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:47, output treesize:33 [2021-06-17 13:06:30,854 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:30,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:30,856 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:30,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:30,860 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:30,881 INFO L628 ElimStorePlain]: treesize reduction 27, result has 30.8 percent of original size [2021-06-17 13:06:30,882 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:30,882 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:06:30,883 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:12 [2021-06-17 13:06:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:30,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089723514] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:30,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:30,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2021-06-17 13:06:30,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489489917] [2021-06-17 13:06:30,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-17 13:06:30,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:30,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-17 13:06:30,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-06-17 13:06:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:30,912 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:30,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:30,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:30,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:30,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:30,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:30,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:31,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-17 13:06:31,327 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:31,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:31,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1348829598, now seen corresponding path program 4 times [2021-06-17 13:06:31,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:31,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681810825] [2021-06-17 13:06:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:31,677 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-06-17 13:06:31,808 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-06-17 13:06:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:32,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:32,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681810825] [2021-06-17 13:06:32,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681810825] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:32,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768738669] [2021-06-17 13:06:32,154 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:32,207 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 13:06:32,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:32,209 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-17 13:06:32,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:32,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:06:32,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,488 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2021-06-17 13:06:32,490 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:06:32,496 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,499 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-06-17 13:06:32,502 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:32,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:06:32,509 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,511 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,513 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2021-06-17 13:06:32,514 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:06:32,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:32,522 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-06-17 13:06:32,525 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:32,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:32,587 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:32,587 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:223, output treesize:153 [2021-06-17 13:06:33,178 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 24 treesize of output 18 [2021-06-17 13:06:33,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:33,186 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 26 treesize of output 20 [2021-06-17 13:06:33,188 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:33,263 INFO L628 ElimStorePlain]: treesize reduction 14, result has 91.4 percent of original size [2021-06-17 13:06:33,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2021-06-17 13:06:33,269 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 13:06:33,326 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:33,330 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 34 treesize of output 26 [2021-06-17 13:06:33,335 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:33,400 INFO L628 ElimStorePlain]: treesize reduction 10, result has 91.5 percent of original size [2021-06-17 13:06:33,400 INFO L518 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2021-06-17 13:06:33,405 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 28 treesize of output 22 [2021-06-17 13:06:33,420 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:33,424 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 36 treesize of output 28 [2021-06-17 13:06:33,427 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:33,460 INFO L628 ElimStorePlain]: treesize reduction 24, result has 63.6 percent of original size [2021-06-17 13:06:33,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-06-17 13:06:33,466 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 13:06:33,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:33,483 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:33,483 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:191, output treesize:32 [2021-06-17 13:06:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:33,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768738669] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:33,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:33,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2021-06-17 13:06:33,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814593525] [2021-06-17 13:06:33,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-17 13:06:33,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:33,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-17 13:06:33,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-06-17 13:06:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:33,547 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:33,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:33,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:33,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:33,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:33,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:33,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:33,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:34,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:34,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:34,541 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:34,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:34,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1285864570, now seen corresponding path program 5 times [2021-06-17 13:06:34,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:34,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751017972] [2021-06-17 13:06:34,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:34,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:34,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751017972] [2021-06-17 13:06:34,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751017972] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:34,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54348142] [2021-06-17 13:06:34,851 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:34,894 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-17 13:06:34,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:34,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-17 13:06:34,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:35,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:35,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:35,070 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:35,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:35,073 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:35,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:35,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:06:35,091 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:47, output treesize:33 [2021-06-17 13:06:35,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:35,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:35,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:35,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:35,227 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:35,245 INFO L628 ElimStorePlain]: treesize reduction 27, result has 30.8 percent of original size [2021-06-17 13:06:35,245 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:35,246 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:06:35,246 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:12 [2021-06-17 13:06:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:35,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54348142] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:35,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:35,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-06-17 13:06:35,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597501296] [2021-06-17 13:06:35,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-17 13:06:35,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:35,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-17 13:06:35,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-06-17 13:06:35,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:35,283 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:35,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.68) internal successors, (42), 25 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) [2021-06-17 13:06:35,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:35,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:35,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:35,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:35,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:35,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:35,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:35,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:35,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-17 13:06:35,930 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:35,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:35,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1206435822, now seen corresponding path program 6 times [2021-06-17 13:06:35,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:35,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887423820] [2021-06-17 13:06:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:36,701 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2021-06-17 13:06:36,971 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-06-17 13:06:37,372 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:37,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:37,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887423820] [2021-06-17 13:06:37,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887423820] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:37,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797560950] [2021-06-17 13:06:37,373 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:37,418 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-17 13:06:37,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:37,419 WARN L261 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 63 conjunts are in the unsatisfiable core [2021-06-17 13:06:37,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:37,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2021-06-17 13:06:37,834 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:37,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-06-17 13:06:37,841 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:37,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2021-06-17 13:06:37,847 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:37,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2021-06-17 13:06:37,852 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:37,880 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:37,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:37,881 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:212, output treesize:130 [2021-06-17 13:06:38,229 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2021-06-17 13:06:38,449 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2021-06-17 13:06:38,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-06-17 13:06:38,505 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:38,548 INFO L628 ElimStorePlain]: treesize reduction 53, result has 64.9 percent of original size [2021-06-17 13:06:38,549 INFO L518 ElimStorePlain]: Eliminatee v_prenex_9 vanished before elimination [2021-06-17 13:06:38,549 INFO L518 ElimStorePlain]: Eliminatee v_prenex_10 vanished before elimination [2021-06-17 13:06:38,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-06-17 13:06:38,554 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:38,570 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:38,570 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:38,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2021-06-17 13:06:38,574 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:38,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:38,585 INFO L518 ElimStorePlain]: Eliminatee v_prenex_11 vanished before elimination [2021-06-17 13:06:38,585 INFO L518 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2021-06-17 13:06:38,586 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:38,586 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:184, output treesize:32 [2021-06-17 13:06:38,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:38,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797560950] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:38,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:38,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 28 [2021-06-17 13:06:38,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295978515] [2021-06-17 13:06:38,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-17 13:06:38,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:38,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-17 13:06:38,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2021-06-17 13:06:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:38,684 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:38,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:38,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:39,534 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-06-17 13:06:39,865 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-06-17 13:06:40,044 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 55 [2021-06-17 13:06:40,197 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2021-06-17 13:06:40,368 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-06-17 13:06:40,532 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-17 13:06:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:40,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-06-17 13:06:40,805 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:40,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:40,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1619949164, now seen corresponding path program 7 times [2021-06-17 13:06:40,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:40,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169364602] [2021-06-17 13:06:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:40,990 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-17 13:06:40,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:40,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169364602] [2021-06-17 13:06:40,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169364602] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:40,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238427583] [2021-06-17 13:06:40,991 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:41,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-17 13:06:41,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:41,356 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-06-17 13:06:41,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 16 [2021-06-17 13:06:41,358 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:41,374 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-06-17 13:06:41,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 32 [2021-06-17 13:06:41,381 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:41,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:41,408 INFO L518 ElimStorePlain]: Eliminatee array_2 vanished before elimination [2021-06-17 13:06:41,412 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:06:41,413 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:95, output treesize:42 [2021-06-17 13:06:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-17 13:06:41,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238427583] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:41,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:41,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-06-17 13:06:41,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870575231] [2021-06-17 13:06:41,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-17 13:06:41,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:41,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-17 13:06:41,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-06-17 13:06:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:41,494 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:41,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:41,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:42,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:42,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:42,358 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:42,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1330951350, now seen corresponding path program 8 times [2021-06-17 13:06:42,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:42,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675924253] [2021-06-17 13:06:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:42,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:42,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675924253] [2021-06-17 13:06:42,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675924253] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:42,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051762466] [2021-06-17 13:06:42,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:42,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:06:42,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:42,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-17 13:06:42,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:42,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:42,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:42,961 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:42,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:42,964 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:42,977 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:42,977 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:06:42,977 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:47, output treesize:33 [2021-06-17 13:06:43,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:43,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:43,125 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:43,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:43,127 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:43,142 INFO L628 ElimStorePlain]: treesize reduction 27, result has 30.8 percent of original size [2021-06-17 13:06:43,142 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:43,143 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:06:43,143 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:12 [2021-06-17 13:06:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:43,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051762466] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:43,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:43,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 31 [2021-06-17 13:06:43,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112547052] [2021-06-17 13:06:43,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-17 13:06:43,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:43,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-17 13:06:43,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2021-06-17 13:06:43,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:43,173 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:43,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 31 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) [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:43,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:43,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:43,940 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:43,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:43,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1689520926, now seen corresponding path program 9 times [2021-06-17 13:06:43,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:43,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694414353] [2021-06-17 13:06:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:44,370 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2021-06-17 13:06:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:45,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:45,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694414353] [2021-06-17 13:06:45,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694414353] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:45,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490973461] [2021-06-17 13:06:45,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:45,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-17 13:06:45,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:45,577 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 81 conjunts are in the unsatisfiable core [2021-06-17 13:06:45,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:46,277 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 67 treesize of output 49 [2021-06-17 13:06:46,279 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:46,287 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 69 treesize of output 51 [2021-06-17 13:06:46,289 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:46,299 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 57 treesize of output 41 [2021-06-17 13:06:46,301 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:46,304 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 67 treesize of output 49 [2021-06-17 13:06:46,308 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:46,343 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:46,344 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:46,344 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:268, output treesize:150 [2021-06-17 13:06:46,798 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2021-06-17 13:06:47,001 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 13:06:47,199 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2021-06-17 13:06:47,252 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 48 treesize of output 36 [2021-06-17 13:06:47,255 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:47,324 INFO L628 ElimStorePlain]: treesize reduction 156, result has 41.4 percent of original size [2021-06-17 13:06:47,324 INFO L518 ElimStorePlain]: Eliminatee v_prenex_21 vanished before elimination [2021-06-17 13:06:47,324 INFO L518 ElimStorePlain]: Eliminatee array_2 vanished before elimination [2021-06-17 13:06:47,324 INFO L518 ElimStorePlain]: Eliminatee v_prenex_20 vanished before elimination [2021-06-17 13:06:47,324 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:47,328 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 50 treesize of output 38 [2021-06-17 13:06:47,331 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:47,349 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:47,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_13 vanished before elimination [2021-06-17 13:06:47,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_22 vanished before elimination [2021-06-17 13:06:47,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_18 vanished before elimination [2021-06-17 13:06:47,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2021-06-17 13:06:47,352 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 40 treesize of output 30 [2021-06-17 13:06:47,354 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:47,366 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:47,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-06-17 13:06:47,370 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 13:06:47,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:47,382 INFO L550 ElimStorePlain]: Start of recursive call 1: 12 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:47,382 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 12 variables, input treesize:304, output treesize:32 [2021-06-17 13:06:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:47,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490973461] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:47,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:47,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 34 [2021-06-17 13:06:47,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789855915] [2021-06-17 13:06:47,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-17 13:06:47,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:47,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-17 13:06:47,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1053, Unknown=0, NotChecked=0, Total=1122 [2021-06-17 13:06:47,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:47,483 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:47,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 34 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:47,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:47,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:47,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:47,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:47,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:47,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:47,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:47,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:47,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:47,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:47,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:48,594 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-06-17 13:06:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:48,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-06-17 13:06:48,909 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:48,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1595679776, now seen corresponding path program 10 times [2021-06-17 13:06:48,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:48,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631581923] [2021-06-17 13:06:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:49,073 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-17 13:06:49,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:49,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631581923] [2021-06-17 13:06:49,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631581923] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:49,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717769639] [2021-06-17 13:06:49,073 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:49,119 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 13:06:49,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:49,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-17 13:06:49,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:49,563 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-06-17 13:06:49,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 41 [2021-06-17 13:06:49,566 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:49,578 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-06-17 13:06:49,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 21 [2021-06-17 13:06:49,580 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:49,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:49,609 INFO L518 ElimStorePlain]: Eliminatee array_2 vanished before elimination [2021-06-17 13:06:49,620 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:06:49,621 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:119, output treesize:53 [2021-06-17 13:06:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-17 13:06:49,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717769639] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:49,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:49,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-06-17 13:06:49,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287839547] [2021-06-17 13:06:49,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-17 13:06:49,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:49,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-17 13:06:49,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2021-06-17 13:06:49,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:49,690 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:49,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.52) internal successors, (38), 25 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:49,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:06:50,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:50,896 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1790535674, now seen corresponding path program 11 times [2021-06-17 13:06:50,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:50,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513205538] [2021-06-17 13:06:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:51,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:51,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513205538] [2021-06-17 13:06:51,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513205538] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:51,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325647357] [2021-06-17 13:06:51,292 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:51,370 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-17 13:06:51,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:51,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-17 13:06:51,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:51,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:51,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:51,656 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:51,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:51,659 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:51,676 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:51,677 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:06:51,677 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:47, output treesize:33 [2021-06-17 13:06:51,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:06:51,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:06:51,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:51,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:06:51,922 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:51,939 INFO L628 ElimStorePlain]: treesize reduction 27, result has 30.8 percent of original size [2021-06-17 13:06:51,940 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:51,940 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:06:51,941 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:12 [2021-06-17 13:06:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:51,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325647357] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:51,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:51,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 37 [2021-06-17 13:06:51,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614807836] [2021-06-17 13:06:51,984 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-17 13:06:51,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:51,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-17 13:06:51,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1223, Unknown=0, NotChecked=0, Total=1332 [2021-06-17 13:06:51,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:51,986 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:51,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 37 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) [2021-06-17 13:06:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:06:51,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:52,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:06:52,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:06:53,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-06-17 13:06:53,032 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:06:53,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:06:53,032 INFO L82 PathProgramCache]: Analyzing trace with hash 328629138, now seen corresponding path program 12 times [2021-06-17 13:06:53,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:06:53,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695235577] [2021-06-17 13:06:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:06:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:06:53,596 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2021-06-17 13:06:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:54,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:06:54,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695235577] [2021-06-17 13:06:54,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695235577] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:54,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765067259] [2021-06-17 13:06:54,816 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:06:54,867 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-17 13:06:54,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:06:54,868 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 103 conjunts are in the unsatisfiable core [2021-06-17 13:06:54,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:06:55,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 51 [2021-06-17 13:06:55,969 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:55,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 51 [2021-06-17 13:06:55,983 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:55,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-06-17 13:06:55,996 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:56,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-06-17 13:06:56,015 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:56,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-06-17 13:06:56,029 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:56,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 67 [2021-06-17 13:06:56,034 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:56,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:06:56,115 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-06-17 13:06:56,115 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:532, output treesize:312 [2021-06-17 13:06:56,487 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-06-17 13:06:56,889 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2021-06-17 13:06:57,189 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-06-17 13:06:57,541 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-06-17 13:06:57,849 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2021-06-17 13:06:57,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-06-17 13:06:57,934 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:57,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2021-06-17 13:06:57,948 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:57,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2021-06-17 13:06:57,962 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:57,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2021-06-17 13:06:57,978 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:57,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-06-17 13:06:57,992 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:58,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2021-06-17 13:06:58,006 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:58,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 51 [2021-06-17 13:06:58,013 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 13:06:58,066 INFO L628 ElimStorePlain]: treesize reduction 102, result has 23.9 percent of original size [2021-06-17 13:06:58,066 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:06:58,067 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:06:58,067 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 2 variables, input treesize:449, output treesize:32 [2021-06-17 13:06:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:06:58,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765067259] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:06:58,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:06:58,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2021-06-17 13:06:58,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829842560] [2021-06-17 13:06:58,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-17 13:06:58,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:06:58,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-17 13:06:58,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1536, Unknown=0, NotChecked=0, Total=1640 [2021-06-17 13:06:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:58,169 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:06:58,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 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) [2021-06-17 13:06:58,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:06:58,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:06:58,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:06:58,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:58,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:06:58,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:06:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:06:59,689 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-06-17 13:07:00,189 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-06-17 13:07:00,404 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 62 [2021-06-17 13:07:00,715 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-06-17 13:07:00,964 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 59 [2021-06-17 13:07:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:01,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:01,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:01,401 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:01,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:01,401 INFO L82 PathProgramCache]: Analyzing trace with hash 147487698, now seen corresponding path program 13 times [2021-06-17 13:07:01,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:01,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735283948] [2021-06-17 13:07:01,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-17 13:07:01,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:01,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735283948] [2021-06-17 13:07:01,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735283948] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:01,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737466342] [2021-06-17 13:07:01,647 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:01,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-17 13:07:01,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:02,315 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-06-17 13:07:02,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 36 treesize of output 26 [2021-06-17 13:07:02,318 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:02,358 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-06-17 13:07:02,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 50 [2021-06-17 13:07:02,362 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:02,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:02,407 INFO L518 ElimStorePlain]: Eliminatee array_2 vanished before elimination [2021-06-17 13:07:02,415 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:02,415 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:143, output treesize:43 [2021-06-17 13:07:02,488 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-17 13:07:02,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737466342] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:02,489 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:02,489 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-06-17 13:07:02,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26237603] [2021-06-17 13:07:02,489 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-17 13:07:02,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:02,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-17 13:07:02,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=754, Unknown=0, NotChecked=0, Total=930 [2021-06-17 13:07:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:02,490 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:02,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:02,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:03,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:04,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:04,108 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:04,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:04,108 INFO L82 PathProgramCache]: Analyzing trace with hash 929937554, now seen corresponding path program 14 times [2021-06-17 13:07:04,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:04,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300376351] [2021-06-17 13:07:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:04,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:04,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300376351] [2021-06-17 13:07:04,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300376351] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:04,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548010915] [2021-06-17 13:07:04,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:04,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:07:04,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:04,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 46 conjunts are in the unsatisfiable core [2021-06-17 13:07:04,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:05,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:05,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:05,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:05,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:05,085 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:05,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:05,099 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:05,099 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:47, output treesize:33 [2021-06-17 13:07:05,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:05,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:05,441 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:05,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:05,444 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:05,460 INFO L628 ElimStorePlain]: treesize reduction 27, result has 30.8 percent of original size [2021-06-17 13:07:05,460 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:07:05,461 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:07:05,461 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:12 [2021-06-17 13:07:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:05,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548010915] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:05,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:05,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 47 [2021-06-17 13:07:05,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180008687] [2021-06-17 13:07:05,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-06-17 13:07:05,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:05,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-06-17 13:07:05,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2011, Unknown=0, NotChecked=0, Total=2162 [2021-06-17 13:07:05,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:05,506 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:05,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:05,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:05,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:05,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:05,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:07,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable145 [2021-06-17 13:07:07,575 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:07,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:07,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1236046714, now seen corresponding path program 15 times [2021-06-17 13:07:07,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:07,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684564039] [2021-06-17 13:07:07,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:08,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:08,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684564039] [2021-06-17 13:07:08,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684564039] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:08,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900720387] [2021-06-17 13:07:08,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:08,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 13:07:08,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:08,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-17 13:07:08,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:08,977 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-06-17 13:07:08,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 73 [2021-06-17 13:07:08,980 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:09,001 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-06-17 13:07:09,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 41 [2021-06-17 13:07:09,005 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:09,027 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:09,029 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:09,029 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:136, output treesize:32 [2021-06-17 13:07:09,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:09,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:09,408 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:09,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:09,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:09,412 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:09,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:09,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:09,416 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:09,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:09,419 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:09,450 INFO L628 ElimStorePlain]: treesize reduction 55, result has 33.7 percent of original size [2021-06-17 13:07:09,450 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:07:09,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:09,451 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:111, output treesize:28 [2021-06-17 13:07:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:09,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900720387] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:09,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:09,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 49 [2021-06-17 13:07:09,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750675861] [2021-06-17 13:07:09,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-06-17 13:07:09,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:09,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-06-17 13:07:09,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=2180, Unknown=0, NotChecked=0, Total=2352 [2021-06-17 13:07:09,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:09,512 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:09,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 49 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:09,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:09,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:09,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:09,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:09,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:09,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:10,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable148 [2021-06-17 13:07:10,969 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:10,969 INFO L82 PathProgramCache]: Analyzing trace with hash 337917714, now seen corresponding path program 16 times [2021-06-17 13:07:10,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:10,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875028611] [2021-06-17 13:07:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:13,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:13,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875028611] [2021-06-17 13:07:13,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875028611] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:13,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292034370] [2021-06-17 13:07:13,206 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:13,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 13:07:13,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:13,264 WARN L261 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 138 conjunts are in the unsatisfiable core [2021-06-17 13:07:13,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:14,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 71 [2021-06-17 13:07:14,944 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:14,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 79 [2021-06-17 13:07:14,970 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:14,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 79 [2021-06-17 13:07:14,994 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:14,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 87 [2021-06-17 13:07:15,000 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:15,065 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:15,067 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:07:15,067 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:459, output treesize:257 [2021-06-17 13:07:15,645 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-17 13:07:15,894 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-17 13:07:16,237 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-17 13:07:16,501 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-17 13:07:16,764 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-17 13:07:17,024 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-17 13:07:17,091 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-06-17 13:07:17,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 51 [2021-06-17 13:07:17,126 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 53 [2021-06-17 13:07:17,149 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-06-17 13:07:17,174 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 61 [2021-06-17 13:07:17,199 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2021-06-17 13:07:17,221 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,247 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-06-17 13:07:17,264 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-06-17 13:07:17,274 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,411 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-06-17 13:07:17,411 INFO L628 ElimStorePlain]: treesize reduction 111, result has 57.1 percent of original size [2021-06-17 13:07:17,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-06-17 13:07:17,420 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-06-17 13:07:17,424 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:17,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2021-06-17 13:07:17,429 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 13:07:17,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-06-17 13:07:17,433 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:17,474 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:17,475 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-06-17 13:07:17,475 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:665, output treesize:100 [2021-06-17 13:07:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:17,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292034370] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:17,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:17,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 53 [2021-06-17 13:07:17,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457412032] [2021-06-17 13:07:17,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-17 13:07:17,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:17,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-17 13:07:17,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2619, Unknown=0, NotChecked=0, Total=2756 [2021-06-17 13:07:17,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:17,755 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:17,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 53 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:17,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:19,065 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2021-06-17 13:07:19,286 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 66 [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:19,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable160 [2021-06-17 13:07:19,598 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:19,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1071795604, now seen corresponding path program 17 times [2021-06-17 13:07:19,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:19,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977212615] [2021-06-17 13:07:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-06-17 13:07:19,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:19,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977212615] [2021-06-17 13:07:19,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977212615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:19,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188142432] [2021-06-17 13:07:19,868 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:19,927 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-17 13:07:19,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:19,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-17 13:07:19,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:20,858 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-06-17 13:07:20,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 50 treesize of output 36 [2021-06-17 13:07:20,862 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:20,944 INFO L354 Elim1Store]: treesize reduction 144, result has 14.8 percent of original size [2021-06-17 13:07:20,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 60 treesize of output 68 [2021-06-17 13:07:20,950 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:21,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:21,004 INFO L518 ElimStorePlain]: Eliminatee array_2 vanished before elimination [2021-06-17 13:07:21,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:21,026 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:191, output treesize:43 [2021-06-17 13:07:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-06-17 13:07:21,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188142432] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:21,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:21,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2021-06-17 13:07:21,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028070191] [2021-06-17 13:07:21,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-17 13:07:21,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:21,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-17 13:07:21,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1089, Unknown=0, NotChecked=0, Total=1332 [2021-06-17 13:07:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:21,093 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:21,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 37 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:21,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:21,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:23,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:23,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:23,413 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:23,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:23,414 INFO L82 PathProgramCache]: Analyzing trace with hash 470984630, now seen corresponding path program 18 times [2021-06-17 13:07:23,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:23,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346116336] [2021-06-17 13:07:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:24,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:24,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346116336] [2021-06-17 13:07:24,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346116336] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:24,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475611612] [2021-06-17 13:07:24,031 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:24,110 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-17 13:07:24,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:24,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 80 conjunts are in the unsatisfiable core [2021-06-17 13:07:24,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:25,107 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-06-17 13:07:25,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 64 treesize of output 46 [2021-06-17 13:07:25,110 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:25,142 INFO L354 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2021-06-17 13:07:25,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 74 treesize of output 82 [2021-06-17 13:07:25,146 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:25,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:25,167 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:25,167 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:150, output treesize:32 [2021-06-17 13:07:25,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:25,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:25,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:25,687 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:25,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:25,688 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:25,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:25,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:25,692 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:25,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:25,695 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:25,726 INFO L628 ElimStorePlain]: treesize reduction 55, result has 33.7 percent of original size [2021-06-17 13:07:25,726 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:07:25,727 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:25,727 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:111, output treesize:28 [2021-06-17 13:07:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:25,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475611612] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:25,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:25,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 29] total 55 [2021-06-17 13:07:25,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486885000] [2021-06-17 13:07:25,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-06-17 13:07:25,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:25,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-06-17 13:07:25,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=2812, Unknown=0, NotChecked=0, Total=2970 [2021-06-17 13:07:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:25,823 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:25,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 1.309090909090909) internal successors, (72), 55 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) [2021-06-17 13:07:25,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:25,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:27,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-06-17 13:07:27,448 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:27,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:27,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1716281826, now seen corresponding path program 19 times [2021-06-17 13:07:27,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:27,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505007234] [2021-06-17 13:07:27,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:30,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:30,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505007234] [2021-06-17 13:07:30,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505007234] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:30,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258302824] [2021-06-17 13:07:30,096 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:30,161 WARN L261 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 156 conjunts are in the unsatisfiable core [2021-06-17 13:07:30,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:31,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,876 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 93 [2021-06-17 13:07:31,897 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:31,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 85 [2021-06-17 13:07:31,935 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:31,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,951 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,954 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 101 [2021-06-17 13:07:31,971 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:31,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:31,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 13:07:31,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 93 [2021-06-17 13:07:31,983 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:32,103 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-06-17 13:07:32,104 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:32,106 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:07:32,106 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:575, output treesize:333 [2021-06-17 13:07:32,531 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2021-06-17 13:07:33,046 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-06-17 13:07:33,404 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-06-17 13:07:33,684 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-06-17 13:07:34,021 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-06-17 13:07:34,293 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-06-17 13:07:34,671 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-06-17 13:07:34,977 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-06-17 13:07:35,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 56 [2021-06-17 13:07:35,034 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:35,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 58 [2021-06-17 13:07:35,062 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:35,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 56 [2021-06-17 13:07:35,088 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:35,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 60 [2021-06-17 13:07:35,093 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:35,121 INFO L628 ElimStorePlain]: treesize reduction 25, result has 56.1 percent of original size [2021-06-17 13:07:35,122 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:07:35,122 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:07:35,122 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:331, output treesize:32 [2021-06-17 13:07:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:35,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258302824] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:35,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:35,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 59 [2021-06-17 13:07:35,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034263436] [2021-06-17 13:07:35,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-06-17 13:07:35,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:35,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-06-17 13:07:35,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=3260, Unknown=0, NotChecked=0, Total=3422 [2021-06-17 13:07:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:35,214 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:35,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 1.2542372881355932) internal successors, (74), 59 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:35,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:35,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:36,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:37,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213 [2021-06-17 13:07:37,016 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:37,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:37,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1006001120, now seen corresponding path program 20 times [2021-06-17 13:07:37,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:37,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528021602] [2021-06-17 13:07:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 36 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-06-17 13:07:37,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:37,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528021602] [2021-06-17 13:07:37,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528021602] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:37,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866820409] [2021-06-17 13:07:37,439 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:37,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 13:07:37,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:37,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-17 13:07:37,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:39,491 INFO L354 Elim1Store]: treesize reduction 224, result has 0.4 percent of original size [2021-06-17 13:07:39,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 57 treesize of output 41 [2021-06-17 13:07:39,494 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:39,589 INFO L354 Elim1Store]: treesize reduction 196, result has 12.9 percent of original size [2021-06-17 13:07:39,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 67 treesize of output 77 [2021-06-17 13:07:39,593 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:39,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:39,651 INFO L518 ElimStorePlain]: Eliminatee array_2 vanished before elimination [2021-06-17 13:07:39,664 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:39,664 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 9 variables, input treesize:215, output treesize:43 [2021-06-17 13:07:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 36 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-06-17 13:07:39,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866820409] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:39,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:39,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 41 [2021-06-17 13:07:39,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158001942] [2021-06-17 13:07:39,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-17 13:07:39,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:39,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-17 13:07:39,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1342, Unknown=0, NotChecked=0, Total=1640 [2021-06-17 13:07:39,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:39,731 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:39,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 41 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) [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:39,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:39,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:39,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:39,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:39,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:39,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:39,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:39,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:44,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-17 13:07:45,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:45,046 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:45,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1371128070, now seen corresponding path program 21 times [2021-06-17 13:07:45,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:45,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329418726] [2021-06-17 13:07:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:45,777 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:45,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:45,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329418726] [2021-06-17 13:07:45,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329418726] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:45,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976514868] [2021-06-17 13:07:45,778 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:45,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-17 13:07:45,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:45,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 62 conjunts are in the unsatisfiable core [2021-06-17 13:07:45,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:46,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:46,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:46,474 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:46,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:46,478 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:46,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:46,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:07:46,492 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:47, output treesize:33 [2021-06-17 13:07:46,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 13:07:46,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-06-17 13:07:46,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:46,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-17 13:07:46,930 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:46,945 INFO L628 ElimStorePlain]: treesize reduction 27, result has 30.8 percent of original size [2021-06-17 13:07:46,945 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:07:46,946 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 13:07:46,946 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:12 [2021-06-17 13:07:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:46,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976514868] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:46,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:46,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31] total 61 [2021-06-17 13:07:46,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775136685] [2021-06-17 13:07:46,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-06-17 13:07:46,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:46,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-06-17 13:07:46,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=3471, Unknown=0, NotChecked=0, Total=3660 [2021-06-17 13:07:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:46,993 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:46,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 61 states, 61 states have (on average 1.278688524590164) internal successors, (78), 61 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:46,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:46,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:46,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:46,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:46,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:46,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:46,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-17 13:07:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:48,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-17 13:07:48,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:07:48,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable254 [2021-06-17 13:07:48,701 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:48,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:48,701 INFO L82 PathProgramCache]: Analyzing trace with hash -444042606, now seen corresponding path program 22 times [2021-06-17 13:07:48,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:48,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101016276] [2021-06-17 13:07:48,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:07:50,753 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:50,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:07:50,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101016276] [2021-06-17 13:07:50,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101016276] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:50,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675299173] [2021-06-17 13:07:50,754 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:07:50,817 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 13:07:50,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:07:50,820 WARN L261 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 171 conjunts are in the unsatisfiable core [2021-06-17 13:07:50,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:07:52,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 101 [2021-06-17 13:07:52,906 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:52,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 99 [2021-06-17 13:07:52,937 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:52,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 91 [2021-06-17 13:07:52,967 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:52,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 99 [2021-06-17 13:07:52,972 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:53,039 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:53,041 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:07:53,041 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:548, output treesize:292 [2021-06-17 13:07:53,794 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-06-17 13:07:54,164 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2021-06-17 13:07:54,524 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-06-17 13:07:54,861 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-06-17 13:07:55,191 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-06-17 13:07:55,512 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-06-17 13:07:55,813 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-06-17 13:07:56,097 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-06-17 13:07:56,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 63 [2021-06-17 13:07:56,140 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:56,250 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 121 [2021-06-17 13:07:56,251 INFO L628 ElimStorePlain]: treesize reduction 14, result has 94.7 percent of original size [2021-06-17 13:07:56,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 61 [2021-06-17 13:07:56,260 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:56,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:56,301 INFO L518 ElimStorePlain]: Eliminatee array_4 vanished before elimination [2021-06-17 13:07:56,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 61 [2021-06-17 13:07:56,308 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:56,335 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:56,335 INFO L518 ElimStorePlain]: Eliminatee v_prenex_29 vanished before elimination [2021-06-17 13:07:56,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 55 [2021-06-17 13:07:56,342 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 13:07:56,354 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:56,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-06-17 13:07:56,358 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 13:07:56,369 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:07:56,370 INFO L518 ElimStorePlain]: Eliminatee v_prenex_26 vanished before elimination [2021-06-17 13:07:56,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-17 13:07:56,370 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:340, output treesize:32 [2021-06-17 13:07:56,483 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 13:07:56,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675299173] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:07:56,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:07:56,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 32] total 64 [2021-06-17 13:07:56,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411662481] [2021-06-17 13:07:56,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-06-17 13:07:56,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:07:56,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-06-17 13:07:56,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=3895, Unknown=0, NotChecked=0, Total=4032 [2021-06-17 13:07:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:56,485 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:07:56,485 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 1.25) internal successors, (80), 64 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:07:56,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:56,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:56,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:56,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-17 13:07:56,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:07:56,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:07:59,385 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2021-06-17 13:07:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-17 13:07:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:07:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 13:07:59,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable257 [2021-06-17 13:07:59,778 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 13:07:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 13:07:59,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1892163476, now seen corresponding path program 23 times [2021-06-17 13:07:59,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 13:07:59,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270377361] [2021-06-17 13:07:59,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 13:07:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 13:08:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-17 13:08:00,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 13:08:00,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270377361] [2021-06-17 13:08:00,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270377361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:08:00,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000322584] [2021-06-17 13:08:00,159 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 13:08:00,229 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-17 13:08:00,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 13:08:00,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 52 conjunts are in the unsatisfiable core [2021-06-17 13:08:00,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 13:08:08,343 INFO L354 Elim1Store]: treesize reduction 288, result has 0.3 percent of original size [2021-06-17 13:08:08,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 46 [2021-06-17 13:08:08,348 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 13:08:08,501 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 26 [2021-06-17 13:08:08,502 INFO L354 Elim1Store]: treesize reduction 256, result has 11.4 percent of original size [2021-06-17 13:08:08,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 74 treesize of output 86 [2021-06-17 13:08:08,506 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 13:08:08,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 13:08:08,590 INFO L518 ElimStorePlain]: Eliminatee array_2 vanished before elimination [2021-06-17 13:08:08,616 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 13:08:08,616 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:239, output treesize:53 [2021-06-17 13:08:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-17 13:08:08,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000322584] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 13:08:08,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 13:08:08,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 45 [2021-06-17 13:08:08,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076461694] [2021-06-17 13:08:08,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-17 13:08:08,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 13:08:08,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-17 13:08:08,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1621, Unknown=2, NotChecked=0, Total=1980 [2021-06-17 13:08:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:08:08,713 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 13:08:08,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 1.288888888888889) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 13:08:08,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 13:08:08,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 13:08:08,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 13:08:08,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 13:08:27,140 WARN L205 SmtUtils]: Spent 16.10 s on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-17 13:08:43,248 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-17 13:08:43,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable282 [2021-06-17 13:08:43,450 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:621) 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:180) 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.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:159) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) 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:363) 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) ... 52 more [2021-06-17 13:08:43,457 INFO L168 Benchmark]: Toolchain (without parser) took 138114.63 ms. Allocated memory was 183.5 MB in the beginning and 458.2 MB in the end (delta: 274.7 MB). Free memory was 163.6 MB in the beginning and 208.4 MB in the end (delta: -44.8 MB). Peak memory consumption was 231.2 MB. Max. memory is 8.0 GB. [2021-06-17 13:08:43,457 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 183.5 MB. Free memory was 164.9 MB in the beginning and 164.8 MB in the end (delta: 91.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 13:08:43,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.28 ms. Allocated memory is still 183.5 MB. Free memory was 163.5 MB in the beginning and 162.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 13:08:43,457 INFO L168 Benchmark]: Boogie Preprocessor took 13.55 ms. Allocated memory is still 183.5 MB. Free memory was 162.0 MB in the beginning and 161.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 13:08:43,457 INFO L168 Benchmark]: RCFGBuilder took 426.81 ms. Allocated memory is still 183.5 MB. Free memory was 160.9 MB in the beginning and 139.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-06-17 13:08:43,458 INFO L168 Benchmark]: TraceAbstraction took 137641.67 ms. Allocated memory was 183.5 MB in the beginning and 458.2 MB in the end (delta: 274.7 MB). Free memory was 138.8 MB in the beginning and 208.4 MB in the end (delta: -69.6 MB). Peak memory consumption was 207.0 MB. Max. memory is 8.0 GB. [2021-06-17 13:08:43,458 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 0.13 ms. Allocated memory is still 183.5 MB. Free memory was 164.9 MB in the beginning and 164.8 MB in the end (delta: 91.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.28 ms. Allocated memory is still 183.5 MB. Free memory was 163.5 MB in the beginning and 162.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.55 ms. Allocated memory is still 183.5 MB. Free memory was 162.0 MB in the beginning and 161.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 426.81 ms. Allocated memory is still 183.5 MB. Free memory was 160.9 MB in the beginning and 139.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 137641.67 ms. Allocated memory was 183.5 MB in the beginning and 458.2 MB in the end (delta: 274.7 MB). Free memory was 138.8 MB in the beginning and 208.4 MB in the end (delta: -69.6 MB). Peak memory consumption was 207.0 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...