java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 15:45:39,293 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 15:45:39,295 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 15:45:39,320 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 15:45:39,320 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 15:45:39,321 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 15:45:39,325 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 15:45:39,327 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 15:45:39,329 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 15:45:39,330 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 15:45:39,331 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 15:45:39,332 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 15:45:39,332 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 15:45:39,334 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 15:45:39,335 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 15:45:39,336 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 15:45:39,337 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 15:45:39,339 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 15:45:39,341 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 15:45:39,342 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 15:45:39,344 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 15:45:39,345 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 15:45:39,348 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 15:45:39,356 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 15:45:39,356 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 15:45:39,357 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 15:45:39,358 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 15:45:39,358 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 15:45:39,379 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 15:45:39,379 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 15:45:39,380 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 15:45:39,381 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 15:45:39,381 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 15:45:39,382 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 15:45:39,383 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 15:45:39,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 15:45:39,383 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 15:45:39,383 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 15:45:39,383 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 15:45:39,384 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 15:45:39,384 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 15:45:39,384 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 15:45:39,385 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 15:45:39,385 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 15:45:39,385 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 15:45:39,385 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 15:45:39,386 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 15:45:39,386 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 15:45:39,386 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 15:45:39,386 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 15:45:39,386 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 15:45:39,387 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 15:45:39,387 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 15:45:39,387 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 15:45:39,387 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 15:45:39,389 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 15:45:39,389 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 15:45:39,389 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 15:45:39,390 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 15:45:39,390 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 15:45:39,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 15:45:39,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 15:45:39,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 15:45:39,484 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 15:45:39,485 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 15:45:39,486 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-19 15:45:39,840 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1ddc5371/1f9670dc72f64019bfcdba6a65e055a1/FLAGc1ff9ac19 [2018-09-19 15:45:40,011 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 15:45:40,012 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-19 15:45:40,019 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1ddc5371/1f9670dc72f64019bfcdba6a65e055a1/FLAGc1ff9ac19 [2018-09-19 15:45:40,035 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1ddc5371/1f9670dc72f64019bfcdba6a65e055a1 [2018-09-19 15:45:40,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 15:45:40,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 15:45:40,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 15:45:40,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 15:45:40,058 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 15:45:40,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e3661dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40, skipping insertion in model container [2018-09-19 15:45:40,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,075 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 15:45:40,299 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:45:40,320 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 15:45:40,333 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:45:40,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40 WrapperNode [2018-09-19 15:45:40,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 15:45:40,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 15:45:40,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 15:45:40,369 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 15:45:40,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (1/1) ... [2018-09-19 15:45:40,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 15:45:40,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 15:45:40,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 15:45:40,420 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 15:45:40,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (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 [2018-09-19 15:45:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 15:45:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 15:45:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 15:45:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-09-19 15:45:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 15:45:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 15:45:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 15:45:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-19 15:45:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 15:45:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-09-19 15:45:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 15:45:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 15:45:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 15:45:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 15:45:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 15:45:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 15:45:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 15:45:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 15:45:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 15:45:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 15:45:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 15:45:40,883 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 15:45:43,111 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 15:45:43,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:45:43 BoogieIcfgContainer [2018-09-19 15:45:43,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 15:45:43,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 15:45:43,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 15:45:43,117 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 15:45:43,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:45:40" (1/3) ... [2018-09-19 15:45:43,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd8b1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:45:43, skipping insertion in model container [2018-09-19 15:45:43,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:40" (2/3) ... [2018-09-19 15:45:43,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd8b1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:45:43, skipping insertion in model container [2018-09-19 15:45:43,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:45:43" (3/3) ... [2018-09-19 15:45:43,121 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-09-19 15:45:43,131 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 15:45:43,140 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 15:45:43,194 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 15:45:43,195 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 15:45:43,195 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 15:45:43,195 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 15:45:43,195 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 15:45:43,196 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 15:45:43,196 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 15:45:43,196 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 15:45:43,196 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 15:45:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-09-19 15:45:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-19 15:45:43,224 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:45:43,228 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:45:43,234 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:45:43,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1314302442, now seen corresponding path program 1 times [2018-09-19 15:45:43,247 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:45:43,248 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 15:45:43,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 15:45:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:45:44,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:45:45,282 WARN L178 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-19 15:45:45,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 15:45:45,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 15:45:45,402 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 15:45:45,501 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 15:45:45,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 15:45:45,909 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:30 [2018-09-19 15:45:46,493 WARN L178 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-19 15:45:47,378 WARN L178 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-19 15:45:47,549 INFO L303 Elim1Store]: Index analysis took 164 ms [2018-09-19 15:45:47,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 30 [2018-09-19 15:45:47,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-09-19 15:45:47,649 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 15:45:47,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 15:45:48,195 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 15:45:48,196 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:49, output treesize:29 [2018-09-19 15:45:49,245 WARN L178 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-19 15:45:49,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-09-19 15:45:49,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 36 [2018-09-19 15:45:49,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 15:45:49,483 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 15:45:49,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 15:45:49,842 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:50, output treesize:42 [2018-09-19 15:45:51,399 WARN L178 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-19 15:45:53,094 WARN L178 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-19 15:46:23,861 WARN L178 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 30 [2018-09-19 15:46:25,922 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) is different from false [2018-09-19 15:46:27,971 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) is different from true [2018-09-19 15:46:30,025 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))))))) is different from false [2018-09-19 15:46:32,073 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))))))) is different from true [2018-09-19 15:46:48,607 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse4 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul RNE .cse2 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse1) .cse2) .cse2)))))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq .cse1 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (fp.leq ((_ to_fp 11 53) RNE .cse0) ((_ to_fp 11 53) RNE 10.0))))))) (and .cse4 (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse5 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse5 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse5 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse6 (let ((.cse7 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul RNE .cse6 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse5) .cse6) .cse6))))) ((_ to_fp 11 53) RNE 10.0))))))) (and (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse8 (let ((.cse10 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul RNE .cse8 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse9) .cse8) .cse8)))) (_ +zero 8 24))) (fp.leq .cse9 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse9 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) .cse4))) is different from false [2018-09-19 15:47:03,141 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse1 (let ((.cse3 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse2) .cse1) .cse1)))) (_ +zero 8 24))) (fp.leq .cse2 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse2 ((_ to_fp 8 24) RNE (/ 1.0 10.0))))))) (and .cse0 (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse4 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul RNE .cse5 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse4) .cse5) .cse5))))) ((_ to_fp 11 53) RNE 10.0))))))) (and (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (let ((.cse7 (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_4 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul RNE .cse9 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse8) .cse9) .cse9)))))) (and (fp.geq .cse7 (_ +zero 8 24)) (fp.leq .cse8 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse8 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (fp.leq ((_ to_fp 11 53) RNE .cse7) ((_ to_fp 11 53) RNE 10.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2018-09-19 15:47:13,474 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse0 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.leq .cse1 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse3 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul RNE .cse4 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) RNE 10.0))))))) is different from false [2018-09-19 15:47:15,533 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr v_arrayElimCell_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse0 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.leq .cse1 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse1 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse3 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul RNE .cse4 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) RNE 10.0))))))) is different from true [2018-09-19 15:47:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:47:15,549 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:47:15,572 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:47:15,572 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 15:47:15,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 15:47:15,594 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 15:47:15,595 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=64, Unknown=18, NotChecked=100, Total=210 [2018-09-19 15:47:15,598 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 15 states. [2018-09-19 15:47:30,982 WARN L178 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-09-19 15:47:36,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 15:47:36,387 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. No stderr output. 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:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:858) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:732) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:338) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:381) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) 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$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 43 more [2018-09-19 15:47:36,391 INFO L168 Benchmark]: Toolchain (without parser) took 116345.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -686.1 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:36,392 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 15:47:36,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:36,394 INFO L168 Benchmark]: Boogie Preprocessor took 50.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 15:47:36,394 INFO L168 Benchmark]: RCFGBuilder took 2693.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.1 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:36,395 INFO L168 Benchmark]: TraceAbstraction took 113277.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 86.4 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:36,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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. * CACSL2BoogieTranslator took 317.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 2693.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.1 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 113277.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 86.4 MB). Peak memory consumption was 86.4 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. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: 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...