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-newlib/double_req_bl_1270b_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:19:32,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:19:32,401 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:19:32,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:19:32,424 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:19:32,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:19:32,427 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:19:32,429 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:19:32,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:19:32,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:19:32,434 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:19:32,434 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:19:32,435 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:19:32,436 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:19:32,437 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:19:32,438 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:19:32,442 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:19:32,446 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:19:32,456 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:19:32,461 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:19:32,462 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:19:32,463 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:19:32,469 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:19:32,470 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:19:32,470 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:19:32,472 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:19:32,473 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:19:32,474 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:19:32,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:19:32,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:19:32,479 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:19:32,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:19:32,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:19:32,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:19:32,482 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:19:32,483 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:19:32,483 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 16:19:32,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:19:32,515 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:19:32,516 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:19:32,517 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:19:32,517 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:19:32,518 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:19:32,518 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:19:32,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:19:32,518 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:19:32,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:19:32,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:19:32,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:19:32,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:19:32,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:19:32,521 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:19:32,521 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:19:32,521 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:19:32,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:19:32,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:19:32,522 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:19:32,522 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:19:32,522 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:19:32,522 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:19:32,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:19:32,523 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:19:32,523 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:19:32,523 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:19:32,523 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:19:32,525 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:19:32,525 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:19:32,525 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:19:32,526 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:19:32,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:19:32,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:19:32,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:19:32,607 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:19:32,607 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:19:32,608 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1270b_true-unreach-call.c [2018-09-19 16:19:32,955 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594de16b1/5accc2ded47147dd87fb1d66024deacf/FLAG0d960e9ef [2018-09-19 16:19:33,236 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:19:33,238 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1270b_true-unreach-call.c [2018-09-19 16:19:33,252 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594de16b1/5accc2ded47147dd87fb1d66024deacf/FLAG0d960e9ef [2018-09-19 16:19:33,272 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594de16b1/5accc2ded47147dd87fb1d66024deacf [2018-09-19 16:19:33,285 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:19:33,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:19:33,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:33,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:19:33,299 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:19:33,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119999c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33, skipping insertion in model container [2018-09-19 16:19:33,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,316 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:19:33,681 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:33,703 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:19:33,824 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:33,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33 WrapperNode [2018-09-19 16:19:33,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:33,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:19:33,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:19:33,877 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:19:33,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (1/1) ... [2018-09-19 16:19:33,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:19:33,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:19:33,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:19:33,980 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:19:33,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (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 16:19:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:19:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:19:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-19 16:19:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypot [2018-09-19 16:19:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:19:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:19:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:19:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:19:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-19 16:19:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:19:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:19:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:19:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:19:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:19:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:19:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypot [2018-09-19 16:19:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:19:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:19:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:19:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:19:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:19:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:19:34,584 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:34,641 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:34,712 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:35,007 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:35,023 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:35,070 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,739 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,926 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,218 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,498 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,615 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,818 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,844 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,866 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:40,646 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:40,683 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:40,733 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:40,771 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:40,911 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,012 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,229 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,238 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,255 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,264 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,314 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,375 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,411 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,420 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,456 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:43,517 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:19:43,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:43 BoogieIcfgContainer [2018-09-19 16:19:43,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:19:43,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:19:43,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:19:43,522 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:19:43,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:19:33" (1/3) ... [2018-09-19 16:19:43,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1ba9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:43, skipping insertion in model container [2018-09-19 16:19:43,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:33" (2/3) ... [2018-09-19 16:19:43,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1ba9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:43, skipping insertion in model container [2018-09-19 16:19:43,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:43" (3/3) ... [2018-09-19 16:19:43,526 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1270b_true-unreach-call.c [2018-09-19 16:19:43,535 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:19:43,543 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:19:43,596 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:19:43,596 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:19:43,597 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:19:43,597 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:19:43,597 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:19:43,597 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:19:43,597 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:19:43,598 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:19:43,598 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:19:43,628 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2018-09-19 16:19:43,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:19:43,640 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:43,642 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, 1] [2018-09-19 16:19:43,644 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:43,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1307480282, now seen corresponding path program 1 times [2018-09-19 16:19:43,655 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:43,656 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 16:19:43,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:19:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:43,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:43,848 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 16:19:43,848 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:19:43,864 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:19:43,864 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:19:43,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:19:43,880 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:19:43,880 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:19:43,883 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 2 states. [2018-09-19 16:19:43,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:19:43,949 INFO L93 Difference]: Finished difference Result 634 states and 789 transitions. [2018-09-19 16:19:43,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:19:43,951 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-19 16:19:43,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:19:43,969 INFO L225 Difference]: With dead ends: 634 [2018-09-19 16:19:43,970 INFO L226 Difference]: Without dead ends: 317 [2018-09-19 16:19:43,977 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:19:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-09-19 16:19:44,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2018-09-19 16:19:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-09-19 16:19:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 348 transitions. [2018-09-19 16:19:44,050 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 348 transitions. Word has length 27 [2018-09-19 16:19:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:19:44,051 INFO L480 AbstractCegarLoop]: Abstraction has 317 states and 348 transitions. [2018-09-19 16:19:44,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:19:44,051 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 348 transitions. [2018-09-19 16:19:44,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:19:44,057 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:44,057 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, 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, 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, 1, 1] [2018-09-19 16:19:44,058 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:44,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1824837538, now seen corresponding path program 1 times [2018-09-19 16:19:44,060 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:44,060 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-19 16:19:44,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:19:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:44,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:44,405 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 14 treesize of output 11 [2018-09-19 16:19:44,411 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 11 treesize of output 10 [2018-09-19 16:19:44,412 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:44,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:44,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:44,437 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:19:44,502 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 20 treesize of output 16 [2018-09-19 16:19:44,520 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 16 treesize of output 4 [2018-09-19 16:19:44,520 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:44,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:44,626 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 16:19:44,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:19:45,845 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 16:19:45,846 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:19:45,863 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:19:45,864 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 16:19:45,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 16:19:45,869 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 16:19:45,869 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-19 16:19:45,869 INFO L87 Difference]: Start difference. First operand 317 states and 348 transitions. Second operand 11 states. [2018-09-19 16:19:51,229 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-19 16:21:39,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:21:39,687 INFO L93 Difference]: Finished difference Result 751 states and 808 transitions. [2018-09-19 16:21:39,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 16:21:39,689 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2018-09-19 16:21:39,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:21:39,697 INFO L225 Difference]: With dead ends: 751 [2018-09-19 16:21:39,697 INFO L226 Difference]: Without dead ends: 510 [2018-09-19 16:21:39,702 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2018-09-19 16:21:39,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2018-09-19 16:21:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 346. [2018-09-19 16:21:39,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-09-19 16:21:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 379 transitions. [2018-09-19 16:21:39,743 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 379 transitions. Word has length 80 [2018-09-19 16:21:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:21:39,744 INFO L480 AbstractCegarLoop]: Abstraction has 346 states and 379 transitions. [2018-09-19 16:21:39,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 16:21:39,744 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 379 transitions. [2018-09-19 16:21:39,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:21:39,748 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:21:39,748 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, 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, 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, 1, 1] [2018-09-19 16:21:39,749 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:21:39,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1343757280, now seen corresponding path program 1 times [2018-09-19 16:21:39,750 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:21:39,750 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:21:39,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:21:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:21:40,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:21:40,137 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 14 treesize of output 11 [2018-09-19 16:21:40,145 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 11 treesize of output 10 [2018-09-19 16:21:40,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:40,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:40,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:40,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:21:40,444 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 20 treesize of output 16 [2018-09-19 16:21:40,453 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 16 treesize of output 4 [2018-09-19 16:21:40,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:40,508 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:40,599 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 16:21:40,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:21:41,311 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-19 16:21:41,445 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 12 treesize of output 9 [2018-09-19 16:21:41,465 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 9 treesize of output 8 [2018-09-19 16:21:41,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:41,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:41,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:41,533 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:38 [2018-09-19 16:21:41,726 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 22 treesize of output 17 [2018-09-19 16:21:41,738 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:41,744 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-09-19 16:21:41,745 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:41,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:41,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:41,832 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:47 [2018-09-19 16:21:42,010 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 63 treesize of output 47 [2018-09-19 16:21:42,024 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:42,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2018-09-19 16:21:42,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:42,056 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:42,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:42,109 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:92, output treesize:48 [2018-09-19 16:21:42,611 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 13 treesize of output 10 [2018-09-19 16:21:42,632 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 10 treesize of output 9 [2018-09-19 16:21:42,633 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:42,660 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:42,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:42,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:61, output treesize:57 [2018-09-19 16:21:43,013 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 55 treesize of output 41 [2018-09-19 16:21:43,031 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:43,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 22 [2018-09-19 16:21:43,041 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 16:21:43,063 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 16:21:43,133 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:43,133 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:102, output treesize:63 [2018-09-19 16:21:43,761 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-19 16:21:46,278 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:21:47,987 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:21:50,872 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:21:50,873 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:21:50,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-09-19 16:21:50,884 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:50,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-19 16:21:50,908 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:50,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:50,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:50,945 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-19 16:21:53,173 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:21:53,174 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:21:53,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-19 16:21:53,194 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:53,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-19 16:21:53,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:53,251 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:53,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:53,296 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-19 16:21:54,097 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 35 treesize of output 27 [2018-09-19 16:21:54,102 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:54,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-19 16:21:54,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:54,146 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:54,161 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 16:21:54,161 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-19 16:22:02,861 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-09-19 16:22:03,013 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 16:22:03,013 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:22:03,028 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:22:03,028 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-09-19 16:22:03,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-19 16:22:03,029 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-19 16:22:03,030 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=690, Unknown=1, NotChecked=0, Total=756 [2018-09-19 16:22:03,030 INFO L87 Difference]: Start difference. First operand 346 states and 379 transitions. Second operand 28 states. [2018-09-19 16:22:08,375 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2018-09-19 16:22:09,419 WARN L178 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2018-09-19 16:22:10,342 WARN L178 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-09-19 16:22:11,993 WARN L178 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2018-09-19 16:22:13,311 WARN L178 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-09-19 16:22:14,515 WARN L178 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2018-09-19 16:22:15,495 WARN L178 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2018-09-19 16:22:17,988 WARN L178 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2018-09-19 16:22:19,159 WARN L178 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2018-09-19 16:22:21,490 WARN L178 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-09-19 16:22:23,419 WARN L178 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-09-19 16:22:24,252 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2018-09-19 16:22:32,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 16:22:32,932 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$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 43 more [2018-09-19 16:22:32,937 INFO L168 Benchmark]: Toolchain (without parser) took 179651.39 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 859.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -748.9 MB). Peak memory consumption was 110.9 MB. Max. memory is 7.1 GB. [2018-09-19 16:22:32,939 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:22:32,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:22:32,940 INFO L168 Benchmark]: Boogie Preprocessor took 102.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:22:32,940 INFO L168 Benchmark]: RCFGBuilder took 9538.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -721.7 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2018-09-19 16:22:32,941 INFO L168 Benchmark]: TraceAbstraction took 169417.54 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 117.4 MB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -48.4 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:22:32,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 586.47 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.52 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 9538.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -721.7 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 169417.54 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 117.4 MB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -48.4 MB). Peak memory consumption was 69.1 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...