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/floats-cdfpl/square_4_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 15:35:13,918 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 15:35:13,924 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 15:35:13,942 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 15:35:13,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 15:35:13,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 15:35:13,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 15:35:13,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 15:35:13,952 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 15:35:13,953 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 15:35:13,954 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 15:35:13,956 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 15:35:13,957 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 15:35:13,958 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 15:35:13,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 15:35:13,969 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 15:35:13,970 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 15:35:13,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 15:35:13,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 15:35:13,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 15:35:13,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 15:35:13,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 15:35:13,990 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 15:35:13,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 15:35:13,991 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 15:35:13,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 15:35:13,997 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 15:35:13,998 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 15:35:14,001 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 15:35:14,002 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 15:35:14,003 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 15:35:14,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 15:35:14,006 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 15:35:14,006 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 15:35:14,007 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 15:35:14,008 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 15:35:14,009 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 15:35:14,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 15:35:14,041 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 15:35:14,042 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 15:35:14,042 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 15:35:14,043 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 15:35:14,043 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 15:35:14,043 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 15:35:14,044 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 15:35:14,044 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 15:35:14,044 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 15:35:14,044 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 15:35:14,045 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 15:35:14,045 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 15:35:14,045 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 15:35:14,045 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 15:35:14,046 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 15:35:14,047 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 15:35:14,047 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 15:35:14,047 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 15:35:14,047 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 15:35:14,048 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 15:35:14,048 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 15:35:14,048 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 15:35:14,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 15:35:14,050 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 15:35:14,050 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 15:35:14,050 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 15:35:14,050 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 15:35:14,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 15:35:14,051 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 15:35:14,051 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 15:35:14,051 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 15:35:14,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 15:35:14,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 15:35:14,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 15:35:14,149 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 15:35:14,149 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 15:35:14,150 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-09-19 15:35:14,551 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87131dd17/6ebff97d98cd45a982bc6b324725db35/FLAG143b04712 [2018-09-19 15:35:14,695 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 15:35:14,696 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-09-19 15:35:14,702 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87131dd17/6ebff97d98cd45a982bc6b324725db35/FLAG143b04712 [2018-09-19 15:35:14,718 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87131dd17/6ebff97d98cd45a982bc6b324725db35 [2018-09-19 15:35:14,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 15:35:14,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 15:35:14,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 15:35:14,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 15:35:14,739 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 15:35:14,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:35:14" (1/1) ... [2018-09-19 15:35:14,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1addf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:14, skipping insertion in model container [2018-09-19 15:35:14,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:35:14" (1/1) ... [2018-09-19 15:35:14,756 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 15:35:15,011 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:35:15,040 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 15:35:15,051 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:35:15,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15 WrapperNode [2018-09-19 15:35:15,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 15:35:15,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 15:35:15,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 15:35:15,078 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 15:35:15,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (1/1) ... [2018-09-19 15:35:15,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (1/1) ... [2018-09-19 15:35:15,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (1/1) ... [2018-09-19 15:35:15,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (1/1) ... [2018-09-19 15:35:15,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (1/1) ... [2018-09-19 15:35:15,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (1/1) ... [2018-09-19 15:35:15,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (1/1) ... [2018-09-19 15:35:15,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 15:35:15,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 15:35:15,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 15:35:15,129 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 15:35:15,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (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 15:35:15,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 15:35:15,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 15:35:15,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 15:35:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 15:35:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-19 15:35:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 15:35:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 15:35:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 15:35:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 15:35:17,579 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 15:35:17,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:35:17 BoogieIcfgContainer [2018-09-19 15:35:17,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 15:35:17,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 15:35:17,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 15:35:17,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 15:35:17,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:35:14" (1/3) ... [2018-09-19 15:35:17,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b18985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:35:17, skipping insertion in model container [2018-09-19 15:35:17,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:35:15" (2/3) ... [2018-09-19 15:35:17,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b18985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:35:17, skipping insertion in model container [2018-09-19 15:35:17,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:35:17" (3/3) ... [2018-09-19 15:35:17,592 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4_true-unreach-call_true-termination.i [2018-09-19 15:35:17,602 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 15:35:17,611 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 15:35:17,661 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 15:35:17,662 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 15:35:17,662 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 15:35:17,663 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 15:35:17,663 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 15:35:17,663 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 15:35:17,663 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 15:35:17,663 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 15:35:17,664 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 15:35:17,680 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-09-19 15:35:17,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-19 15:35:17,687 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:35:17,688 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:35:17,690 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:35:17,696 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-09-19 15:35:17,701 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:35:17,702 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 15:35:17,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown