/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:16:21,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:16:21,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:16:21,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:16:21,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:16:21,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:16:21,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:16:21,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:16:21,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:16:21,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:16:21,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:16:21,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:16:21,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:16:21,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:16:21,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:16:21,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:16:21,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:16:21,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:16:21,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:16:21,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:16:21,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:16:21,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:16:21,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:16:21,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:16:21,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:16:21,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:16:21,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:16:21,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:16:21,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:16:21,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:16:21,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:16:21,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:16:21,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:16:21,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:16:21,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:16:21,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:16:21,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:16:21,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:16:21,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:16:21,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:16:21,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:16:21,609 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 [2020-09-25 04:16:21,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:16:21,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:16:21,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:16:21,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:16:21,637 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:16:21,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:16:21,638 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:16:21,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:16:21,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:16:21,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:16:21,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:16:21,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:16:21,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:16:21,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:16:21,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:16:21,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:16:21,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:16:21,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:16:21,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:16:21,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:16:21,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:16:21,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:16:21,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:16:21,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:16:21,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:16:21,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:16:21,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:16:21,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:16:21,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:16:21,643 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:16:22,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:16:22,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:16:22,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:16:22,183 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:16:22,183 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:16:22,184 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-25 04:16:22,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7e6dc5d0/4baaccfd1b994aa2b748847446985b0c/FLAGc900899ab [2020-09-25 04:16:22,847 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:16:22,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-25 04:16:22,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7e6dc5d0/4baaccfd1b994aa2b748847446985b0c/FLAGc900899ab [2020-09-25 04:16:23,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7e6dc5d0/4baaccfd1b994aa2b748847446985b0c [2020-09-25 04:16:23,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:16:23,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:16:23,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:16:23,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:16:23,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:16:23,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a98c4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23, skipping insertion in model container [2020-09-25 04:16:23,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:16:23,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:16:23,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:16:23,513 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:16:23,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:16:23,570 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:16:23,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23 WrapperNode [2020-09-25 04:16:23,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:16:23,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:16:23,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:16:23,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:16:23,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (1/1) ... [2020-09-25 04:16:23,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:16:23,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:16:23,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:16:23,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:16:23,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (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 [2020-09-25 04:16:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:16:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:16:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 04:16:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-25 04:16:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-09-25 04:16:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:16:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:16:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 04:16:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 04:16:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-25 04:16:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:16:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 04:16:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:16:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:16:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-09-25 04:16:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:16:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:16:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:16:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:16:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 04:16:24,245 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:16:24,246 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 04:16:24,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:16:24 BoogieIcfgContainer [2020-09-25 04:16:24,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:16:24,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:16:24,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:16:24,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:16:24,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:16:23" (1/3) ... [2020-09-25 04:16:24,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb96b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:16:24, skipping insertion in model container [2020-09-25 04:16:24,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:16:23" (2/3) ... [2020-09-25 04:16:24,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb96b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:16:24, skipping insertion in model container [2020-09-25 04:16:24,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:16:24" (3/3) ... [2020-09-25 04:16:24,262 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-09-25 04:16:24,286 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:16:24,307 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:16:24,333 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:16:24,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:16:24,362 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:16:24,362 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:16:24,362 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:16:24,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:16:24,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:16:24,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:16:24,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:16:24,387 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-25 04:16:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 04:16:24,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:24,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:16:24,398 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:24,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1770687738, now seen corresponding path program 1 times [2020-09-25 04:16:24,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:24,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369771700] [2020-09-25 04:16:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:24,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:24,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:25,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:25,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 04:16:25,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:16:25,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-09-25 04:16:25,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:25,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:25,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:25,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 04:16:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:25,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:16:25,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:16:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:25,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:25,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:25,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:16:25,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:25,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:16:25,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:25,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:25,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:16:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:25,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:25,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:25,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:16:25,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:16:25,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:25,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:25,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:25,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:25,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:25,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 04:16:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:25,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:25,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:25,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:25,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:16:25,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:16:25,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 04:16:25,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:25,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:25,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:25,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:16:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:25,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:25,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:16:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:25,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:25,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:25,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:16:25,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:25,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:16:25,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:25,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:16:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:25,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:16:25,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369771700] [2020-09-25 04:16:25,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:16:25,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:16:25,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67007638] [2020-09-25 04:16:25,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:16:25,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:16:25,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:16:25,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:16:25,325 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-09-25 04:16:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:16:25,673 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-09-25 04:16:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:16:25,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-25 04:16:25,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:16:25,690 INFO L225 Difference]: With dead ends: 141 [2020-09-25 04:16:25,691 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 04:16:25,696 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 [2020-09-25 04:16:25,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 04:16:25,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 04:16:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 04:16:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-09-25 04:16:25,754 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-09-25 04:16:25,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:16:25,755 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-09-25 04:16:25,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:16:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-09-25 04:16:25,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 04:16:25,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:25,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:16:25,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:16:25,759 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:25,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:25,760 INFO L82 PathProgramCache]: Analyzing trace with hash 524719120, now seen corresponding path program 1 times [2020-09-25 04:16:25,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:25,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945043009] [2020-09-25 04:16:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:16:26,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 04:16:26,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:16:26,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 04:16:26,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:16:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:16:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:16:26,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:16:26,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:16:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:16:26,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:16:26,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 04:16:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 04:16:26,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 04:16:26,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:16:26,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 04:16:26,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:16:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:16:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:16:26,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 04:16:26,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:16:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:16:26,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:16:26,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945043009] [2020-09-25 04:16:26,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:16:26,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:16:26,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403406276] [2020-09-25 04:16:26,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:16:26,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:16:26,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:16:26,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:16:26,357 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-09-25 04:16:26,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:16:26,574 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-09-25 04:16:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:16:26,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 04:16:26,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:16:26,580 INFO L225 Difference]: With dead ends: 88 [2020-09-25 04:16:26,580 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 04:16:26,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:16:26,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 04:16:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-09-25 04:16:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 04:16:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-25 04:16:26,598 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-09-25 04:16:26,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:16:26,599 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-25 04:16:26,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:16:26,599 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-25 04:16:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 04:16:26,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:26,601 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, 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] [2020-09-25 04:16:26,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:16:26,602 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:26,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:26,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2023591653, now seen corresponding path program 1 times [2020-09-25 04:16:26,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:26,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594327334] [2020-09-25 04:16:26,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 04:16:26,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 04:16:26,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:16:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 04:16:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:16:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:16:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:16:26,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:16:26,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:26,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:26,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:26,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:16:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:16:26,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:16:26,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:16:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:16:26,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:26,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 04:16:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:26,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:26,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:26,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 04:16:26,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 04:16:26,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:26,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:16:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 04:16:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:16:26,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:16:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:16:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:16:27,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:16:27,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 04:16:27,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:16:27,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 04:16:27,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:16:27,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:16:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:16:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:16:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 04:16:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:16:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:16:27,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594327334] [2020-09-25 04:16:27,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:16:27,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:16:27,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766770324] [2020-09-25 04:16:27,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:16:27,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:16:27,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:16:27,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:16:27,119 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-09-25 04:16:27,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:16:27,346 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-09-25 04:16:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:16:27,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-09-25 04:16:27,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:16:27,351 INFO L225 Difference]: With dead ends: 92 [2020-09-25 04:16:27,351 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 04:16:27,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:16:27,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 04:16:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-09-25 04:16:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 04:16:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-25 04:16:27,376 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-09-25 04:16:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:16:27,382 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-25 04:16:27,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:16:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-25 04:16:27,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 04:16:27,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:16:27,392 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, 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] [2020-09-25 04:16:27,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:16:27,392 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:16:27,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:16:27,393 INFO L82 PathProgramCache]: Analyzing trace with hash 425668389, now seen corresponding path program 1 times [2020-09-25 04:16:27,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:16:27,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154709436] [2020-09-25 04:16:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:16:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:16:27,423 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:16:27,423 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:16:27,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:16:27,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:16:27 BoogieIcfgContainer [2020-09-25 04:16:27,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:16:27,465 INFO L168 Benchmark]: Toolchain (without parser) took 4252.78 ms. Allocated memory was 140.5 MB in the beginning and 245.9 MB in the end (delta: 105.4 MB). Free memory was 103.4 MB in the beginning and 160.8 MB in the end (delta: -57.4 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:27,466 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-25 04:16:27,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.39 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 92.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:27,470 INFO L168 Benchmark]: Boogie Preprocessor took 139.73 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 180.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:27,471 INFO L168 Benchmark]: RCFGBuilder took 540.21 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 158.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:27,477 INFO L168 Benchmark]: TraceAbstraction took 3206.24 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 158.0 MB in the beginning and 160.8 MB in the end (delta: -2.8 MB). Peak memory consumption was 39.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:16:27,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 356.39 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 92.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.73 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 180.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 540.21 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 158.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3206.24 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 158.0 MB in the beginning and 160.8 MB in the end (delta: -2.8 MB). Peak memory consumption was 39.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 77, overapproximation of someBinaryArithmeticDOUBLEoperation at line 65. Possible FailurePath: [L64] double x = __VERIFIER_nondet_double(); [L65] double y = 0.0 / 0.0; [L72] CALL, EXPR isnan_double(x) [L16] return x != x; [L72] RET, EXPR isnan_double(x) [L72] COND TRUE !isnan_double(x) [L74] CALL, EXPR fmax_double(x, y) [L55] CALL, EXPR __fpclassify_double(x) [L27] __uint32_t msw, lsw; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (msw) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lsw) = ew_u.parts.lsw [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; [L55] RET, EXPR __fpclassify_double(x) [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; [L74] RET, EXPR fmax_double(x, y) [L74] double res = fmax_double(x, y); [L77] COND TRUE res != x [L78] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 237 SDtfs, 97 SDslu, 382 SDs, 0 SdLazy, 315 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 13222 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...