/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=LOWLEXORDER --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_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:05:49,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:05:49,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:05:49,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:05:49,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:05:49,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:05:49,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:05:49,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:05:49,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:05:49,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:05:49,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:05:49,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:05:49,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:05:49,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:05:49,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:05:49,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:05:49,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:05:49,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:05:49,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:05:49,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:05:49,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:05:49,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:05:49,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:05:49,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:05:49,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:05:49,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:05:49,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:05:49,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:05:49,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:05:49,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:05:49,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:05:49,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:05:49,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:05:49,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:05:49,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:05:49,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:05:49,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:05:49,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:05:49,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:05:49,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:05:49,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:05:49,705 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 18:05:49,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:05:49,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:05:49,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:05:49,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:05:49,729 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:05:49,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:05:49,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:05:49,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:05:49,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:05:49,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:05:49,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:05:49,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:05:49,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:05:49,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:05:49,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:05:49,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:05:49,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:05:49,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:05:49,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:05:49,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:05:49,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:05:49,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:05:49,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:05:49,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:05:49,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:05:49,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:05:49,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:05:49,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:05:49,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:05:49,734 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=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:05:50,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:05:50,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:05:50,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:05:50,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:05:50,110 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:05:50,111 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-21 18:05:50,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef581f327/ea52ee85d2764480aba0d82b2df6c797/FLAG7a7687d2b [2020-08-21 18:05:50,675 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:05:50,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-21 18:05:50,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef581f327/ea52ee85d2764480aba0d82b2df6c797/FLAG7a7687d2b [2020-08-21 18:05:51,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef581f327/ea52ee85d2764480aba0d82b2df6c797 [2020-08-21 18:05:51,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:05:51,047 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:05:51,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:05:51,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:05:51,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:05:51,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231fe863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51, skipping insertion in model container [2020-08-21 18:05:51,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:05:51,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:05:51,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:05:51,282 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:05:51,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:05:51,338 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:05:51,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51 WrapperNode [2020-08-21 18:05:51,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:05:51,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:05:51,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:05:51,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:05:51,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (1/1) ... [2020-08-21 18:05:51,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:05:51,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:05:51,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:05:51,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:05:51,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (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 18:05:51,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:05:51,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:05:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-21 18:05:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-21 18:05:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-21 18:05:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-21 18:05:51,573 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:05:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:05:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-21 18:05:51,574 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-21 18:05:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-21 18:05:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:05:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-21 18:05:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:05:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:05:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-21 18:05:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-21 18:05:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:05:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:05:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:05:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:05:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-21 18:05:51,890 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:05:51,890 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 18:05:51,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:05:51 BoogieIcfgContainer [2020-08-21 18:05:51,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:05:51,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:05:51,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:05:51,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:05:51,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:05:51" (1/3) ... [2020-08-21 18:05:51,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:05:51, skipping insertion in model container [2020-08-21 18:05:51,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:05:51" (2/3) ... [2020-08-21 18:05:51,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:05:51, skipping insertion in model container [2020-08-21 18:05:51,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:05:51" (3/3) ... [2020-08-21 18:05:51,922 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2020-08-21 18:05:51,948 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:05:51,968 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:05:51,994 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:05:52,016 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:05:52,016 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:05:52,016 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:05:52,016 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:05:52,017 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:05:52,017 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:05:52,017 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:05:52,017 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:05:52,038 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-08-21 18:05:52,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-21 18:05:52,045 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:05:52,047 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] [2020-08-21 18:05:52,047 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:05:52,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:05:52,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1786760399, now seen corresponding path program 1 times [2020-08-21 18:05:52,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:05:52,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921253511] [2020-08-21 18:05:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:05:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:05:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:05:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:05:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,321 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 18:05:52,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921253511] [2020-08-21 18:05:52,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:05:52,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 18:05:52,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83741232] [2020-08-21 18:05:52,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 18:05:52,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:05:52,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 18:05:52,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 18:05:52,349 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-08-21 18:05:52,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:05:52,583 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2020-08-21 18:05:52,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 18:05:52,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-08-21 18:05:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:05:52,596 INFO L225 Difference]: With dead ends: 79 [2020-08-21 18:05:52,597 INFO L226 Difference]: Without dead ends: 40 [2020-08-21 18:05:52,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 18:05:52,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-21 18:05:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-21 18:05:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-21 18:05:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-21 18:05:52,648 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2020-08-21 18:05:52,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:05:52,648 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-21 18:05:52,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 18:05:52,648 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-21 18:05:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 18:05:52,651 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:05:52,651 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] [2020-08-21 18:05:52,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:05:52,652 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:05:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:05:52,652 INFO L82 PathProgramCache]: Analyzing trace with hash -952976765, now seen corresponding path program 1 times [2020-08-21 18:05:52,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:05:52,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934451551] [2020-08-21 18:05:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:05:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:05:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:05:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:05:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:52,864 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 18:05:52,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934451551] [2020-08-21 18:05:52,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:05:52,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 18:05:52,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478783174] [2020-08-21 18:05:52,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 18:05:52,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:05:52,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 18:05:52,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 18:05:52,870 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-08-21 18:05:53,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:05:53,152 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-08-21 18:05:53,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 18:05:53,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-21 18:05:53,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:05:53,156 INFO L225 Difference]: With dead ends: 59 [2020-08-21 18:05:53,157 INFO L226 Difference]: Without dead ends: 44 [2020-08-21 18:05:53,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 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 18:05:53,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-21 18:05:53,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-08-21 18:05:53,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-21 18:05:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-21 18:05:53,171 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2020-08-21 18:05:53,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:05:53,172 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-21 18:05:53,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 18:05:53,172 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-21 18:05:53,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 18:05:53,174 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:05:53,174 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 18:05:53,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:05:53,174 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:05:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:05:53,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1944362408, now seen corresponding path program 1 times [2020-08-21 18:05:53,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:05:53,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801809928] [2020-08-21 18:05:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:05:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:53,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:05:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:53,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:05:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:53,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:05:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:05:53,326 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 18:05:53,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801809928] [2020-08-21 18:05:53,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:05:53,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 18:05:53,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181056584] [2020-08-21 18:05:53,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 18:05:53,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:05:53,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 18:05:53,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 18:05:53,329 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 6 states. [2020-08-21 18:05:53,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:05:53,566 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2020-08-21 18:05:53,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 18:05:53,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-21 18:05:53,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:05:53,568 INFO L225 Difference]: With dead ends: 63 [2020-08-21 18:05:53,568 INFO L226 Difference]: Without dead ends: 48 [2020-08-21 18:05:53,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 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 18:05:53,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-21 18:05:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-21 18:05:53,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-21 18:05:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-08-21 18:05:53,581 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2020-08-21 18:05:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:05:53,581 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-08-21 18:05:53,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 18:05:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-08-21 18:05:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 18:05:53,583 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:05:53,583 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 18:05:53,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:05:53,583 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:05:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:05:53,584 INFO L82 PathProgramCache]: Analyzing trace with hash 553653529, now seen corresponding path program 1 times [2020-08-21 18:05:53,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:05:53,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713574014] [2020-08-21 18:05:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:05:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:05:53,608 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:05:53,609 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:05:53,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 18:05:53,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:05:53 BoogieIcfgContainer [2020-08-21 18:05:53,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:05:53,635 INFO L168 Benchmark]: Toolchain (without parser) took 2587.42 ms. Allocated memory was 143.1 MB in the beginning and 226.5 MB in the end (delta: 83.4 MB). Free memory was 99.2 MB in the beginning and 139.0 MB in the end (delta: -39.8 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. [2020-08-21 18:05:53,636 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 143.1 MB. Free memory was 117.7 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 18:05:53,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.68 ms. Allocated memory is still 143.1 MB. Free memory was 99.0 MB in the beginning and 87.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:05:53,638 INFO L168 Benchmark]: Boogie Preprocessor took 171.52 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 87.7 MB in the beginning and 176.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-21 18:05:53,639 INFO L168 Benchmark]: RCFGBuilder took 387.59 ms. Allocated memory is still 199.2 MB. Free memory was 176.2 MB in the beginning and 154.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-08-21 18:05:53,640 INFO L168 Benchmark]: TraceAbstraction took 1728.00 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 154.6 MB in the beginning and 139.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:05:53,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 143.1 MB. Free memory was 117.7 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.68 ms. Allocated memory is still 143.1 MB. Free memory was 99.0 MB in the beginning and 87.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 171.52 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 87.7 MB in the beginning and 176.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.59 ms. Allocated memory is still 199.2 MB. Free memory was 176.2 MB in the beginning and 154.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1728.00 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 154.6 MB in the beginning and 139.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 74. Possible FailurePath: [L74] double x = -0.0; [L75] double y = 0.0; [L76] CALL, EXPR fmin_double(x, y) [L46] CALL, EXPR __fpclassify_double(x) [L19] __uint32_t msw, lsw; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; [L46] RET, EXPR __fpclassify_double(x) [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; [L76] RET, EXPR fmin_double(x, y) [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 117 SDslu, 43 SDs, 0 SdLazy, 296 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 4170 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...