java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-unlimited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4b9831f [2018-12-23 14:19:43,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-23 14:19:43,382 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-23 14:19:43,395 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-23 14:19:43,396 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-23 14:19:43,397 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-23 14:19:43,398 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-23 14:19:43,400 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-23 14:19:43,402 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-23 14:19:43,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-23 14:19:43,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-23 14:19:43,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-23 14:19:43,405 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-23 14:19:43,406 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-23 14:19:43,407 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-23 14:19:43,409 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-23 14:19:43,410 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-23 14:19:43,414 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-23 14:19:43,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-23 14:19:43,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-23 14:19:43,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-23 14:19:43,429 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-23 14:19:43,437 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-23 14:19:43,438 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-23 14:19:43,438 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-23 14:19:43,441 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-23 14:19:43,444 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-23 14:19:43,445 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-23 14:19:43,446 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-23 14:19:43,447 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-23 14:19:43,447 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-23 14:19:43,450 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-23 14:19:43,450 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-23 14:19:43,450 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-23 14:19:43,451 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-23 14:19:43,453 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-23 14:19:43,453 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-23 14:19:43,474 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-23 14:19:43,474 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-23 14:19:43,475 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-23 14:19:43,475 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-23 14:19:43,475 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-23 14:19:43,475 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-23 14:19:43,476 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-23 14:19:43,476 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-23 14:19:43,476 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-23 14:19:43,476 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-23 14:19:43,476 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-23 14:19:43,476 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-23 14:19:43,477 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-23 14:19:43,477 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-23 14:19:43,478 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-23 14:19:43,478 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-23 14:19:43,478 INFO L133 SettingsManager]: * Use SBE=true [2018-12-23 14:19:43,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-23 14:19:43,479 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-23 14:19:43,479 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-23 14:19:43,479 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-23 14:19:43,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-23 14:19:43,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-23 14:19:43,480 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-23 14:19:43,480 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-23 14:19:43,480 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-23 14:19:43,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-23 14:19:43,481 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-23 14:19:43,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-23 14:19:43,481 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-23 14:19:43,481 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-23 14:19:43,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-23 14:19:43,482 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-23 14:19:43,482 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-23 14:19:43,482 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-23 14:19:43,482 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-23 14:19:43,483 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-23 14:19:43,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-23 14:19:43,483 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-23 14:19:43,483 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-23 14:19:43,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-23 14:19:43,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-23 14:19:43,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-23 14:19:43,539 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-23 14:19:43,539 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-23 14:19:43,540 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-unlimited.bpl [2018-12-23 14:19:43,540 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-unlimited.bpl' [2018-12-23 14:19:43,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-23 14:19:43,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-23 14:19:43,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-23 14:19:43,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-23 14:19:43,607 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-23 14:19:43,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-23 14:19:43,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-23 14:19:43,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-23 14:19:43,701 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-23 14:19:43,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/1) ... [2018-12-23 14:19:43,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-23 14:19:43,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-23 14:19:43,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-23 14:19:43,758 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-23 14:19:43,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (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 [2018-12-23 14:19:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-23 14:19:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-23 14:19:44,945 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-23 14:19:44,946 INFO L280 CfgBuilder]: Removed 21 assue(true) statements. [2018-12-23 14:19:44,947 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:19:44 BoogieIcfgContainer [2018-12-23 14:19:44,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-23 14:19:44,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-23 14:19:44,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-23 14:19:44,952 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-23 14:19:44,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.12 02:19:43" (1/2) ... [2018-12-23 14:19:44,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635fe123 and model type speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:19:44, skipping insertion in model container [2018-12-23 14:19:44,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:19:44" (2/2) ... [2018-12-23 14:19:44,955 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-9-unlimited.bpl [2018-12-23 14:19:44,966 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-23 14:19:44,975 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-12-23 14:19:44,993 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-12-23 14:19:45,029 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-23 14:19:45,029 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-23 14:19:45,029 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-23 14:19:45,030 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-23 14:19:45,030 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-23 14:19:45,030 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-23 14:19:45,030 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-23 14:19:45,030 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-23 14:19:45,047 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-23 14:19:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-23 14:19:45,054 INFO L394 BasicCegarLoop]: Found error trace [2018-12-23 14:19:45,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2018-12-23 14:19:45,058 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2018-12-23 14:19:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-23 14:19:45,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2018-12-23 14:19:45,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-23 14:19:45,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-23 14:19:45,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-23 14:19:45,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-23 14:19:45,125 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-23 14:19:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-23 14:19:45,369 INFO L273 TraceCheckUtils]: 0: Hoare triple {24#true} havoc main_p1, main_p2, main_p3, main_p4, main_p5, main_p6, main_p7, main_p8, main_p9;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p1 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p2 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p3 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p4 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p5 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p6 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p7 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p8 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p9 := malloc_ptr;#memory_int := #memory_int[main_p1 := 0];#memory_int := #memory_int[main_p2 := 0];#memory_int := #memory_int[main_p3 := 0];#memory_int := #memory_int[main_p4 := 0];#memory_int := #memory_int[main_p5 := 0];#memory_int := #memory_int[main_p6 := 0];#memory_int := #memory_int[main_p7 := 0];#memory_int := #memory_int[main_p8 := 0];#memory_int := #memory_int[main_p9 := 0]; {26#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} is VALID [2018-12-23 14:19:45,390 INFO L273 TraceCheckUtils]: 1: Hoare triple {26#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} assume !(#memory_int[main_p1] >= 0); {25#false} is VALID [2018-12-23 14:19:45,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-23 14:19:45,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-23 14:19:45,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-23 14:19:45,397 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-23 14:19:45,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-23 14:19:45,417 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-23 14:19:45,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-12-23 14:19:45,460 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-23 14:19:45,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-23 14:19:45,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-23 14:19:45,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-23 14:19:45,475 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-23 14:19:45,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-23 14:19:45,958 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2018-12-23 14:19:45,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-23 14:19:45,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-23 14:19:45,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-23 14:19:45,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-23 14:19:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2018-12-23 14:19:45,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-23 14:19:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2018-12-23 14:19:45,973 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 57 transitions. [2018-12-23 14:19:46,401 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-23 14:19:46,414 INFO L225 Difference]: With dead ends: 41 [2018-12-23 14:19:46,415 INFO L226 Difference]: Without dead ends: 36 [2018-12-23 14:19:46,419 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-23 14:19:46,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-23 14:19:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 20. [2018-12-23 14:19:46,454 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-23 14:19:46,455 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 20 states. [2018-12-23 14:19:46,455 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 20 states. [2018-12-23 14:19:46,456 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 20 states. [2018-12-23 14:19:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-23 14:19:46,461 INFO L93 Difference]: Finished difference Result 36 states and 52 transitions. [2018-12-23 14:19:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2018-12-23 14:19:46,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-23 14:19:46,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-23 14:19:46,463 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 36 states. [2018-12-23 14:19:46,464 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 36 states. [2018-12-23 14:19:46,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-23 14:19:46,469 INFO L93 Difference]: Finished difference Result 36 states and 52 transitions. [2018-12-23 14:19:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2018-12-23 14:19:46,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-23 14:19:46,470 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-23 14:19:46,470 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-23 14:19:46,471 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-23 14:19:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-23 14:19:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 37 transitions. [2018-12-23 14:19:46,475 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 37 transitions. Word has length 2 [2018-12-23 14:19:46,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-23 14:19:46,476 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 37 transitions. [2018-12-23 14:19:46,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-23 14:19:46,476 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 37 transitions. [2018-12-23 14:19:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-23 14:19:46,477 INFO L394 BasicCegarLoop]: Found error trace [2018-12-23 14:19:46,477 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-23 14:19:46,478 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2018-12-23 14:19:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-23 14:19:46,478 INFO L82 PathProgramCache]: Analyzing trace with hash 30388, now seen corresponding path program 1 times [2018-12-23 14:19:46,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-23 14:19:46,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-23 14:19:46,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-23 14:19:46,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-23 14:19:46,480 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-23 14:19:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-23 14:19:46,655 INFO L273 TraceCheckUtils]: 0: Hoare triple {166#true} havoc main_p1, main_p2, main_p3, main_p4, main_p5, main_p6, main_p7, main_p8, main_p9;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p1 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p2 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p3 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p4 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p5 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p6 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p7 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p8 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p9 := malloc_ptr;#memory_int := #memory_int[main_p1 := 0];#memory_int := #memory_int[main_p2 := 0];#memory_int := #memory_int[main_p3 := 0];#memory_int := #memory_int[main_p4 := 0];#memory_int := #memory_int[main_p5 := 0];#memory_int := #memory_int[main_p6 := 0];#memory_int := #memory_int[main_p7 := 0];#memory_int := #memory_int[main_p8 := 0];#memory_int := #memory_int[main_p9 := 0]; {168#(and (= 0 (select (store |#memory_int| ULTIMATE.start_main_p4 (+ (select |#memory_int| ULTIMATE.start_main_p4) (- 1))) ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)))} is VALID [2018-12-23 14:19:46,661 INFO L273 TraceCheckUtils]: 1: Hoare triple {168#(and (= 0 (select (store |#memory_int| ULTIMATE.start_main_p4 (+ (select |#memory_int| ULTIMATE.start_main_p4) (- 1))) ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)))} #memory_int := #memory_int[main_p4 := #memory_int[main_p4] - 1]; {169#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} is VALID [2018-12-23 14:19:46,663 INFO L273 TraceCheckUtils]: 2: Hoare triple {169#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} assume !(#memory_int[main_p1] >= 0); {167#false} is VALID [2018-12-23 14:19:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-23 14:19:46,663 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-23 14:19:46,664 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-23 14:19:46,664 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2018-12-23 14:19:46,666 INFO L207 CegarAbsIntRunner]: [0], [18], [39] [2018-12-23 14:19:46,705 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-23 14:19:46,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-23 14:19:46,856 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-23 14:19:46,857 INFO L272 AbstractInterpreter]: Visited 3 different actions 3 times. Never merged. Never widened. Performed 94 root evaluator evaluations with a maximum evaluation depth of 2. Performed 94 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-23 14:19:46,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-23 14:19:46,870 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-23 14:19:46,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-23 14:19:46,871 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-23 14:19:46,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-23 14:19:46,889 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-23 14:19:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-23 14:19:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-23 14:19:46,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-23 14:19:47,452 WARN L181 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-12-23 14:19:47,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2018-12-23 14:19:47,498 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2018-12-23 14:19:47,553 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,555 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 49 [2018-12-23 14:19:47,595 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,597 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,598 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,602 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 63 [2018-12-23 14:19:47,632 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,634 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,636 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,638 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 81 [2018-12-23 14:19:47,706 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,711 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,712 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,717 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,719 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,721 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 103 [2018-12-23 14:19:47,796 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,798 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,799 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,800 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,808 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,809 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:47,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 129 [2018-12-23 14:19:48,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,018 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,021 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,025 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,026 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,028 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,030 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,034 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 159 [2018-12-23 14:19:48,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 158 [2018-12-23 14:19:48,238 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,336 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,430 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,550 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,598 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,634 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,664 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,690 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,725 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:48,857 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:48,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 114 [2018-12-23 14:19:49,136 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,139 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 104 [2018-12-23 14:19:49,257 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,258 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,260 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,261 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 103 [2018-12-23 14:19:49,472 WARN L181 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-12-23 14:19:49,493 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,494 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,496 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,497 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,499 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,500 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,503 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 105 [2018-12-23 14:19:49,676 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,677 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,679 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,680 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,682 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,684 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,685 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,687 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:49,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 116 [2018-12-23 14:19:49,978 WARN L181 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2018-12-23 14:19:50,010 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,012 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,014 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,016 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,018 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,018 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,019 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,021 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,022 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,023 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 134 [2018-12-23 14:19:50,230 WARN L181 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2018-12-23 14:19:50,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,287 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,288 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,289 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,290 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,291 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,293 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,294 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,295 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,297 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,298 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,300 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:50,304 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 113 [2018-12-23 14:19:50,314 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-23 14:19:50,384 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:50,455 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:50,533 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:50,610 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:50,690 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:50,767 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:19:50,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-12-23 14:19:50,922 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:150, output treesize:158 [2018-12-23 14:19:53,732 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-23 14:19:53,733 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_int_47|, ULTIMATE.start_main_p2, ULTIMATE.start_main_p3, ULTIMATE.start_main_p5, ULTIMATE.start_main_p6, ULTIMATE.start_main_p7, ULTIMATE.start_main_p8, ULTIMATE.start_main_p9, |v_#valid_11|]. (let ((.cse1 (store |v_#valid_11| ULTIMATE.start_main_p1 1))) (let ((.cse3 (store .cse1 ULTIMATE.start_main_p2 1))) (let ((.cse2 (store .cse3 ULTIMATE.start_main_p3 1))) (let ((.cse0 (store .cse2 ULTIMATE.start_main_p4 1))) (let ((.cse4 (store .cse0 ULTIMATE.start_main_p5 1))) (let ((.cse5 (store .cse4 ULTIMATE.start_main_p6 1))) (and (= (select .cse0 ULTIMATE.start_main_p5) 0) (= 0 (select .cse1 ULTIMATE.start_main_p2)) (= (select .cse2 ULTIMATE.start_main_p4) 0) (= (select .cse3 ULTIMATE.start_main_p3) 0) (= 0 (select .cse4 ULTIMATE.start_main_p6)) (= (store (store (store (store (store (store (store (store (store |v_#memory_int_47| ULTIMATE.start_main_p1 0) ULTIMATE.start_main_p2 0) ULTIMATE.start_main_p3 0) ULTIMATE.start_main_p4 0) ULTIMATE.start_main_p5 0) ULTIMATE.start_main_p6 0) ULTIMATE.start_main_p7 0) ULTIMATE.start_main_p8 0) ULTIMATE.start_main_p9 0) |#memory_int|) (= (select (store .cse5 ULTIMATE.start_main_p7 1) ULTIMATE.start_main_p8) 0) (= (select .cse5 ULTIMATE.start_main_p7) 0)))))))) [2018-12-23 14:19:53,734 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ [ULTIMATE.start_main_p2, ULTIMATE.start_main_p7, ULTIMATE.start_main_p8, ULTIMATE.start_main_p5, ULTIMATE.start_main_p3, ULTIMATE.start_main_p9, ULTIMATE.start_main_p6]. (and (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p7)) (= 0 (select |#memory_int| ULTIMATE.start_main_p2)) (= 0 (select |#memory_int| ULTIMATE.start_main_p9)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p4)) (= (select |#memory_int| ULTIMATE.start_main_p1) 0) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p1)) (= (select |#memory_int| ULTIMATE.start_main_p4) 0) (= 0 (select |#memory_int| ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p5 ULTIMATE.start_main_p4)) (= (select |#memory_int| ULTIMATE.start_main_p3) 0) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p4)) (= 0 (select |#memory_int| ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p5))) [2018-12-23 14:19:56,480 WARN L181 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2018-12-23 14:19:57,080 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:19:57,084 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 153 [2018-12-23 14:19:57,121 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-23 14:19:57,274 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-12-23 14:19:57,275 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:163, output treesize:125 [2018-12-23 14:19:59,739 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-23 14:19:59,739 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_int_48|, ULTIMATE.start_main_p4, ULTIMATE.start_main_p2, ULTIMATE.start_main_p7, ULTIMATE.start_main_p8, ULTIMATE.start_main_p5, ULTIMATE.start_main_p3, ULTIMATE.start_main_p6]. (let ((.cse0 (select |v_#memory_int_48| ULTIMATE.start_main_p4))) (and (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p7)) (= 0 (select |v_#memory_int_48| ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p7)) (= (store |v_#memory_int_48| ULTIMATE.start_main_p4 (+ .cse0 (- 1))) |#memory_int|) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)) (= 0 (select |v_#memory_int_48| ULTIMATE.start_main_p3)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p5)) (= 0 (select |v_#memory_int_48| ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p6)) (= 0 (select |v_#memory_int_48| ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p5 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p8)) (= 0 (select |v_#memory_int_48| ULTIMATE.start_main_p6)) (= 0 (select |v_#memory_int_48| ULTIMATE.start_main_p2)) (= 0 (select |v_#memory_int_48| ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p2)) (= 0 .cse0) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p5)))) [2018-12-23 14:19:59,739 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ [ULTIMATE.start_main_p2, ULTIMATE.start_main_p7, ULTIMATE.start_main_p5, ULTIMATE.start_main_p3, ULTIMATE.start_main_p6, ULTIMATE.start_main_p8, ULTIMATE.start_main_p4]. (and (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p7)) (= 0 (select |#memory_int| ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p5)) (= (select |#memory_int| ULTIMATE.start_main_p1) 0) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p1)) (= (select |#memory_int| ULTIMATE.start_main_p4) (- 1)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p1)) (= 0 (select |#memory_int| ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p6)) (= (select |#memory_int| ULTIMATE.start_main_p3) 0) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p7)) (= 0 (select |#memory_int| ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p5))) [2018-12-23 14:20:02,374 INFO L273 TraceCheckUtils]: 0: Hoare triple {166#true} havoc main_p1, main_p2, main_p3, main_p4, main_p5, main_p6, main_p7, main_p8, main_p9;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p1 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p2 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p3 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p4 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p5 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p6 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p7 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p8 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p9 := malloc_ptr;#memory_int := #memory_int[main_p1 := 0];#memory_int := #memory_int[main_p2 := 0];#memory_int := #memory_int[main_p3 := 0];#memory_int := #memory_int[main_p4 := 0];#memory_int := #memory_int[main_p5 := 0];#memory_int := #memory_int[main_p6 := 0];#memory_int := #memory_int[main_p7 := 0];#memory_int := #memory_int[main_p8 := 0];#memory_int := #memory_int[main_p9 := 0]; {173#(and (exists ((ULTIMATE.start_main_p5 Int) (ULTIMATE.start_main_p6 Int) (ULTIMATE.start_main_p7 Int) (ULTIMATE.start_main_p8 Int) (ULTIMATE.start_main_p2 Int) (ULTIMATE.start_main_p3 Int)) (and (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p1)) (= 0 (select |#memory_int| ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p5 ULTIMATE.start_main_p4)) (= (select |#memory_int| ULTIMATE.start_main_p3) 0) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p7)) (= 0 (select |#memory_int| ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p5)))) (= (select |#memory_int| ULTIMATE.start_main_p1) 0) (= (select |#memory_int| ULTIMATE.start_main_p4) 0) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)))} is VALID [2018-12-23 14:20:03,114 INFO L273 TraceCheckUtils]: 1: Hoare triple {173#(and (exists ((ULTIMATE.start_main_p5 Int) (ULTIMATE.start_main_p6 Int) (ULTIMATE.start_main_p7 Int) (ULTIMATE.start_main_p8 Int) (ULTIMATE.start_main_p2 Int) (ULTIMATE.start_main_p3 Int)) (and (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p1)) (= 0 (select |#memory_int| ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p5 ULTIMATE.start_main_p4)) (= (select |#memory_int| ULTIMATE.start_main_p3) 0) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p4)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p7)) (= 0 (select |#memory_int| ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p5)))) (= (select |#memory_int| ULTIMATE.start_main_p1) 0) (= (select |#memory_int| ULTIMATE.start_main_p4) 0) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)))} #memory_int := #memory_int[main_p4 := #memory_int[main_p4] - 1]; {177#(and (= (select |#memory_int| ULTIMATE.start_main_p1) 0) (exists ((ULTIMATE.start_main_p4 Int)) (= (+ (select |#memory_int| ULTIMATE.start_main_p4) 1) 0)) (exists ((ULTIMATE.start_main_p5 Int) (ULTIMATE.start_main_p6 Int) (ULTIMATE.start_main_p7 Int) (ULTIMATE.start_main_p8 Int) (ULTIMATE.start_main_p2 Int) (ULTIMATE.start_main_p3 Int)) (and (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p1)) (= 0 (select |#memory_int| ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p6)) (= (select |#memory_int| ULTIMATE.start_main_p3) 0) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p7)) (= 0 (select |#memory_int| ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p5)))))} is VALID [2018-12-23 14:20:03,116 INFO L273 TraceCheckUtils]: 2: Hoare triple {177#(and (= (select |#memory_int| ULTIMATE.start_main_p1) 0) (exists ((ULTIMATE.start_main_p4 Int)) (= (+ (select |#memory_int| ULTIMATE.start_main_p4) 1) 0)) (exists ((ULTIMATE.start_main_p5 Int) (ULTIMATE.start_main_p6 Int) (ULTIMATE.start_main_p7 Int) (ULTIMATE.start_main_p8 Int) (ULTIMATE.start_main_p2 Int) (ULTIMATE.start_main_p3 Int)) (and (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p5)) (= 0 (select |#memory_int| ULTIMATE.start_main_p7)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p1)) (= 0 (select |#memory_int| ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p7 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p6)) (= (select |#memory_int| ULTIMATE.start_main_p3) 0) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p6)) (not (= ULTIMATE.start_main_p2 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p5)) (not (= ULTIMATE.start_main_p3 ULTIMATE.start_main_p2)) (not (= ULTIMATE.start_main_p8 ULTIMATE.start_main_p7)) (= 0 (select |#memory_int| ULTIMATE.start_main_p8)) (not (= ULTIMATE.start_main_p6 ULTIMATE.start_main_p5)))))} assume !(#memory_int[main_p1] >= 0); {167#false} is VALID [2018-12-23 14:20:03,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-23 14:20:03,117 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-23 14:20:03,153 INFO L273 TraceCheckUtils]: 2: Hoare triple {181#(<= 0 (select |#memory_int| ULTIMATE.start_main_p1))} assume !(#memory_int[main_p1] >= 0); {167#false} is VALID [2018-12-23 14:20:03,154 INFO L273 TraceCheckUtils]: 1: Hoare triple {185#(<= 0 (select (store |#memory_int| ULTIMATE.start_main_p4 (+ (select |#memory_int| ULTIMATE.start_main_p4) (- 1))) ULTIMATE.start_main_p1))} #memory_int := #memory_int[main_p4 := #memory_int[main_p4] - 1]; {181#(<= 0 (select |#memory_int| ULTIMATE.start_main_p1))} is VALID [2018-12-23 14:20:03,158 INFO L273 TraceCheckUtils]: 0: Hoare triple {166#true} havoc main_p1, main_p2, main_p3, main_p4, main_p5, main_p6, main_p7, main_p8, main_p9;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p1 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p2 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p3 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p4 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p5 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p6 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p7 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p8 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p9 := malloc_ptr;#memory_int := #memory_int[main_p1 := 0];#memory_int := #memory_int[main_p2 := 0];#memory_int := #memory_int[main_p3 := 0];#memory_int := #memory_int[main_p4 := 0];#memory_int := #memory_int[main_p5 := 0];#memory_int := #memory_int[main_p6 := 0];#memory_int := #memory_int[main_p7 := 0];#memory_int := #memory_int[main_p8 := 0];#memory_int := #memory_int[main_p9 := 0]; {185#(<= 0 (select (store |#memory_int| ULTIMATE.start_main_p4 (+ (select |#memory_int| ULTIMATE.start_main_p4) (- 1))) ULTIMATE.start_main_p1))} is VALID [2018-12-23 14:20:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-23 14:20:03,184 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-23 14:20:03,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2018-12-23 14:20:03,184 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-23 14:20:03,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2018-12-23 14:20:03,185 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-23 14:20:03,185 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-12-23 14:20:04,375 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-23 14:20:04,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-23 14:20:04,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-23 14:20:04,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-12-23 14:20:04,376 INFO L87 Difference]: Start difference. First operand 20 states and 37 transitions. Second operand 6 states. [2018-12-23 14:20:05,187 WARN L181 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-12-23 14:20:06,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-23 14:20:06,342 INFO L93 Difference]: Finished difference Result 71 states and 104 transitions. [2018-12-23 14:20:06,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-23 14:20:06,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2018-12-23 14:20:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-23 14:20:06,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-23 14:20:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2018-12-23 14:20:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-23 14:20:06,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2018-12-23 14:20:06,348 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 104 transitions. [2018-12-23 14:20:30,907 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 104 edges. 104 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-23 14:20:30,910 INFO L225 Difference]: With dead ends: 71 [2018-12-23 14:20:30,910 INFO L226 Difference]: Without dead ends: 69 [2018-12-23 14:20:30,911 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-12-23 14:20:30,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-12-23 14:20:30,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 24. [2018-12-23 14:20:30,972 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-23 14:20:30,972 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 24 states. [2018-12-23 14:20:30,972 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 24 states. [2018-12-23 14:20:30,972 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 24 states. [2018-12-23 14:20:30,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-23 14:20:30,978 INFO L93 Difference]: Finished difference Result 69 states and 101 transitions. [2018-12-23 14:20:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 101 transitions. [2018-12-23 14:20:30,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-23 14:20:30,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-23 14:20:30,979 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 69 states. [2018-12-23 14:20:30,980 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 69 states. [2018-12-23 14:20:30,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-23 14:20:30,985 INFO L93 Difference]: Finished difference Result 69 states and 101 transitions. [2018-12-23 14:20:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 101 transitions. [2018-12-23 14:20:30,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-23 14:20:30,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-23 14:20:30,986 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-23 14:20:30,986 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-23 14:20:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-23 14:20:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 52 transitions. [2018-12-23 14:20:30,989 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 52 transitions. Word has length 3 [2018-12-23 14:20:30,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-23 14:20:30,989 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 52 transitions. [2018-12-23 14:20:30,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-23 14:20:30,990 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 52 transitions. [2018-12-23 14:20:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-23 14:20:30,990 INFO L394 BasicCegarLoop]: Found error trace [2018-12-23 14:20:30,990 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-23 14:20:30,991 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2018-12-23 14:20:30,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-23 14:20:30,991 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2018-12-23 14:20:30,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-23 14:20:30,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-23 14:20:30,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-23 14:20:30,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-23 14:20:30,992 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-23 14:20:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-23 14:20:31,145 INFO L273 TraceCheckUtils]: 0: Hoare triple {430#true} havoc main_p1, main_p2, main_p3, main_p4, main_p5, main_p6, main_p7, main_p8, main_p9;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p1 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p2 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p3 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p4 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p5 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p6 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p7 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p8 := malloc_ptr;malloc_old_#valid := #valid;havoc malloc_ptr;havoc #valid;assume malloc_old_#valid[malloc_ptr] == 0;assume #valid == malloc_old_#valid[malloc_ptr := 1];main_p9 := malloc_ptr;#memory_int := #memory_int[main_p1 := 0];#memory_int := #memory_int[main_p2 := 0];#memory_int := #memory_int[main_p3 := 0];#memory_int := #memory_int[main_p4 := 0];#memory_int := #memory_int[main_p5 := 0];#memory_int := #memory_int[main_p6 := 0];#memory_int := #memory_int[main_p7 := 0];#memory_int := #memory_int[main_p8 := 0];#memory_int := #memory_int[main_p9 := 0]; {432#(and (= 0 (select (store |#memory_int| ULTIMATE.start_main_p8 (+ (select |#memory_int| ULTIMATE.start_main_p8) (- 1))) ULTIMATE.start_main_p1)) (= (select |#memory_int| ULTIMATE.start_main_p8) 0))} is VALID [2018-12-23 14:20:31,146 INFO L273 TraceCheckUtils]: 1: Hoare triple {432#(and (= 0 (select (store |#memory_int| ULTIMATE.start_main_p8 (+ (select |#memory_int| ULTIMATE.start_main_p8) (- 1))) ULTIMATE.start_main_p1)) (= (select |#memory_int| ULTIMATE.start_main_p8) 0))} #memory_int := #memory_int[main_p8 := #memory_int[main_p8] - 1]; {433#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} is VALID [2018-12-23 14:20:31,147 INFO L273 TraceCheckUtils]: 2: Hoare triple {433#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} assume !(#memory_int[main_p1] >= 0); {431#false} is VALID [2018-12-23 14:20:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-23 14:20:31,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-23 14:20:31,147 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-23 14:20:31,147 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2018-12-23 14:20:31,148 INFO L207 CegarAbsIntRunner]: [0], [34], [39] [2018-12-23 14:20:31,149 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-23 14:20:31,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-23 14:20:31,176 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-23 14:20:31,176 INFO L272 AbstractInterpreter]: Visited 3 different actions 3 times. Never merged. Never widened. Performed 94 root evaluator evaluations with a maximum evaluation depth of 2. Performed 94 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-23 14:20:31,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-23 14:20:31,177 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-23 14:20:31,177 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-23 14:20:31,177 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-23 14:20:31,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-23 14:20:31,186 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-23 14:20:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-23 14:20:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-23 14:20:31,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-23 14:20:31,331 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 114 [2018-12-23 14:20:31,429 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,430 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 104 [2018-12-23 14:20:31,519 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,520 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,521 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,522 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,524 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 103 [2018-12-23 14:20:31,678 WARN L181 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-12-23 14:20:31,692 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,693 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,695 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,696 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,698 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,700 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 105 [2018-12-23 14:20:31,973 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,974 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,976 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,977 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,979 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,980 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,981 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,983 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:31,987 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 116 [2018-12-23 14:20:32,185 WARN L181 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2018-12-23 14:20:32,211 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,212 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,213 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,214 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,216 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,218 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,219 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,220 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,221 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,223 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,225 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 134 [2018-12-23 14:20:32,407 WARN L181 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2018-12-23 14:20:32,565 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,566 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,568 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,569 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,570 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,574 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,575 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,576 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,578 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,579 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,580 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,582 INFO L701 Elim1Store]: detected not equals via solver [2018-12-23 14:20:32,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 113 [2018-12-23 14:20:32,589 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-23 14:20:32,651 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:32,720 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:32,789 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:32,860 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:32,927 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:32,995 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2018-12-23 14:20:33,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2018-12-23 14:20:33,117 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 49 [2018-12-23 14:20:33,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 63 [2018-12-23 14:20:33,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 25 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 81 [2018-12-23 14:20:33,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 27 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 103 [2018-12-23 14:20:33,298 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 129 [2018-12-23 14:20:33,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 159 [2018-12-23 14:20:33,400 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 158 [2018-12-23 14:20:33,406 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,486 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,546 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,596 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,634 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,667 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,692 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,718 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,740 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-23 14:20:33,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-12-23 14:20:33,874 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:150, output treesize:158 [2018-12-23 14:20:35,462 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-23 14:20:35,664 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-23 14:20:35,665 FATAL L265 ToolchainWalker]: 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:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.EliminationTask.areDistinct(EliminationTask.java:106) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.validateEquivalence(PartialQuantifierElimination.java:381) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:294) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 38 more [2018-12-23 14:20:35,670 INFO L168 Benchmark]: Toolchain (without parser) took 52065.56 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 820.0 MB). Free memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: -247.9 MB). Peak memory consumption was 572.1 MB. Max. memory is 7.1 GB. [2018-12-23 14:20:35,671 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-23 14:20:35,672 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.64 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-23 14:20:35,672 INFO L168 Benchmark]: Boogie Preprocessor took 56.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-23 14:20:35,673 INFO L168 Benchmark]: RCFGBuilder took 1189.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-23 14:20:35,673 INFO L168 Benchmark]: TraceAbstraction took 50720.91 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 820.0 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -290.2 MB). Peak memory consumption was 529.8 MB. Max. memory is 7.1 GB. [2018-12-23 14:20:35,679 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 93.64 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1189.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50720.91 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 820.0 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -290.2 MB). Peak memory consumption was 529.8 MB. Max. memory is 7.1 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:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...