/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:54:07,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:54:07,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:54:07,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:54:07,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:54:07,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:54:07,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:54:07,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:54:07,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:54:07,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:54:07,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:54:07,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:54:07,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:54:07,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:54:07,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:54:07,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:54:07,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:54:07,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:54:07,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:54:07,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:54:07,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:54:07,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:54:07,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:54:07,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:54:07,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:54:07,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:54:07,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:54:07,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:54:07,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:54:07,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:54:07,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:54:07,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:54:07,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:54:07,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:54:07,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:54:07,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:54:07,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:54:07,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:54:07,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:54:07,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:54:07,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:54:07,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 18:54:07,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:54:07,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:54:07,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:54:07,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:54:07,454 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:54:07,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:54:07,455 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:54:07,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:54:07,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:54:07,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:54:07,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:54:07,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:54:07,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:54:07,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:54:07,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:54:07,457 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:54:07,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:54:07,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:54:07,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:54:07,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:54:07,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:54:07,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:54:07,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:54:07,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:54:07,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:54:07,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:54:07,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:54:07,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:54:07,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:54:07,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 18:54:07,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:54:07,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:54:07,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:54:07,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:54:07,805 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:54:07,805 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-08-21 18:54:07,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e68a2e4a9/4ae1d1106f374db0a43c410a7e442626/FLAG4f4f85587 [2020-08-21 18:54:08,327 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:54:08,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-08-21 18:54:08,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e68a2e4a9/4ae1d1106f374db0a43c410a7e442626/FLAG4f4f85587 [2020-08-21 18:54:08,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e68a2e4a9/4ae1d1106f374db0a43c410a7e442626 [2020-08-21 18:54:08,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:54:08,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:54:08,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:54:08,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:54:08,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:54:08,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f12d333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:08, skipping insertion in model container [2020-08-21 18:54:08,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:54:08" (1/1) ... [2020-08-21 18:54:08,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:54:08,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:54:08,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:54:08,974 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:54:09,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:54:09,023 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:54:09,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09 WrapperNode [2020-08-21 18:54:09,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:54:09,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:54:09,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:54:09,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:54:09,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... [2020-08-21 18:54:09,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... [2020-08-21 18:54:09,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... [2020-08-21 18:54:09,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... [2020-08-21 18:54:09,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... [2020-08-21 18:54:09,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... [2020-08-21 18:54:09,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... [2020-08-21 18:54:09,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:54:09,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:54:09,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:54:09,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:54:09,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 18:54:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:54:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:54:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-21 18:54:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-21 18:54:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-21 18:54:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-21 18:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-21 18:54:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-21 18:54:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:54:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-21 18:54:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:54:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:54:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-21 18:54:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:54:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:54:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:54:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:54:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-21 18:54:09,564 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:54:09,565 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-21 18:54:09,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:54:09 BoogieIcfgContainer [2020-08-21 18:54:09,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:54:09,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:54:09,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:54:09,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:54:09,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:54:08" (1/3) ... [2020-08-21 18:54:09,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc0de37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:54:09, skipping insertion in model container [2020-08-21 18:54:09,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:54:09" (2/3) ... [2020-08-21 18:54:09,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc0de37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:54:09, skipping insertion in model container [2020-08-21 18:54:09,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:54:09" (3/3) ... [2020-08-21 18:54:09,577 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-08-21 18:54:09,586 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:54:09,593 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:54:09,607 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:54:09,631 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:54:09,631 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:54:09,631 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:54:09,632 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:54:09,632 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:54:09,632 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:54:09,632 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:54:09,632 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:54:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-21 18:54:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 18:54:09,658 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:09,659 INFO L422 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] [2020-08-21 18:54:09,660 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:09,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1251720270, now seen corresponding path program 1 times [2020-08-21 18:54:09,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:09,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352078327] [2020-08-21 18:54:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:54:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 18:54:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:54:09,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352078327] [2020-08-21 18:54:09,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:54:09,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:54:09,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544344682] [2020-08-21 18:54:09,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:54:09,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:54:09,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:54:09,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:54:09,993 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2020-08-21 18:54:10,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:54:10,212 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-08-21 18:54:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 18:54:10,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-08-21 18:54:10,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:54:10,226 INFO L225 Difference]: With dead ends: 71 [2020-08-21 18:54:10,226 INFO L226 Difference]: Without dead ends: 36 [2020-08-21 18:54:10,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 18:54:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-08-21 18:54:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-08-21 18:54:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-21 18:54:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-08-21 18:54:10,283 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-08-21 18:54:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:54:10,283 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-08-21 18:54:10,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:54:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-08-21 18:54:10,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 18:54:10,286 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:10,286 INFO L422 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] [2020-08-21 18:54:10,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:54:10,287 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:10,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:10,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1491407075, now seen corresponding path program 1 times [2020-08-21 18:54:10,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:10,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131564958] [2020-08-21 18:54:10,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:54:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-21 18:54:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:54:10,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131564958] [2020-08-21 18:54:10,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:54:10,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 18:54:10,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100755399] [2020-08-21 18:54:10,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 18:54:10,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:54:10,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 18:54:10,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 18:54:10,546 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 6 states. [2020-08-21 18:54:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:54:10,795 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-08-21 18:54:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 18:54:10,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-21 18:54:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:54:10,799 INFO L225 Difference]: With dead ends: 51 [2020-08-21 18:54:10,799 INFO L226 Difference]: Without dead ends: 40 [2020-08-21 18:54:10,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-21 18:54:10,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-21 18:54:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-21 18:54:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-21 18:54:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-21 18:54:10,813 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-08-21 18:54:10,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:54:10,814 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-21 18:54:10,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 18:54:10,814 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-21 18:54:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 18:54:10,816 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:10,816 INFO L422 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] [2020-08-21 18:54:10,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:54:10,817 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:10,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:10,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1711130393, now seen corresponding path program 1 times [2020-08-21 18:54:10,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:10,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447399189] [2020-08-21 18:54:10,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:54:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:54:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:54:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 18:54:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:54:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:54:10,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447399189] [2020-08-21 18:54:10,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:54:10,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 18:54:10,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210506428] [2020-08-21 18:54:10,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 18:54:10,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:54:10,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 18:54:10,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 18:54:10,970 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-08-21 18:54:11,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:54:11,161 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-08-21 18:54:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 18:54:11,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-21 18:54:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:54:11,163 INFO L225 Difference]: With dead ends: 55 [2020-08-21 18:54:11,163 INFO L226 Difference]: Without dead ends: 44 [2020-08-21 18:54:11,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-21 18:54:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-21 18:54:11,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-08-21 18:54:11,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-21 18:54:11,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-21 18:54:11,174 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-08-21 18:54:11,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:54:11,174 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-21 18:54:11,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 18:54:11,174 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-21 18:54:11,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 18:54:11,176 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:54:11,176 INFO L422 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] [2020-08-21 18:54:11,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:54:11,176 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:54:11,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:54:11,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1076285094, now seen corresponding path program 1 times [2020-08-21 18:54:11,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:54:11,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188723523] [2020-08-21 18:54:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:54:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:54:11,203 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:54:11,204 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:54:11,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 18:54:11,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:54:11 BoogieIcfgContainer [2020-08-21 18:54:11,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:54:11,231 INFO L168 Benchmark]: Toolchain (without parser) took 2473.84 ms. Allocated memory was 140.0 MB in the beginning and 235.9 MB in the end (delta: 95.9 MB). Free memory was 100.9 MB in the beginning and 147.9 MB in the end (delta: -47.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:11,232 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-21 18:54:11,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.34 ms. Allocated memory is still 140.0 MB. Free memory was 100.9 MB in the beginning and 89.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:11,234 INFO L168 Benchmark]: Boogie Preprocessor took 113.71 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 89.9 MB in the beginning and 179.7 MB in the end (delta: -89.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:11,235 INFO L168 Benchmark]: RCFGBuilder took 430.24 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 160.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:11,236 INFO L168 Benchmark]: TraceAbstraction took 1657.86 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 159.5 MB in the beginning and 147.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2020-08-21 18:54:11,240 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.34 ms. Allocated memory is still 140.0 MB. Free memory was 100.9 MB in the beginning and 89.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.71 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 89.9 MB in the beginning and 179.7 MB in the end (delta: -89.8 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.24 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 160.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1657.86 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 159.5 MB in the beginning and 147.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L63] CALL, EXPR fmin_double(x, y) [L45] CALL, EXPR __fpclassify_double(x) [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] RET, EXPR __fpclassify_double(x) [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L63] RET, EXPR fmin_double(x, y) [L63] double res = fmin_double(x, y); [L65] CALL, EXPR isnan_double(res) [L16] return x != x; [L65] RET, EXPR isnan_double(res) [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 108 SDslu, 43 SDs, 0 SdLazy, 255 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...