/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=0.8 --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_1231b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:42:28,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:42:28,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:42:28,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:42:28,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:42:28,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:42:28,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:42:28,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:42:28,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:42:28,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:42:28,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:42:28,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:42:28,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:42:28,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:42:28,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:42:28,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:42:28,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:42:28,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:42:28,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:42:28,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:42:28,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:42:28,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:42:28,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:42:28,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:42:28,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:42:28,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:42:28,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:42:28,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:42:28,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:42:28,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:42:28,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:42:28,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:42:28,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:42:28,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:42:28,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:42:28,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:42:28,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:42:28,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:42:28,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:42:28,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:42:28,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:42:28,182 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 07:42:28,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:42:28,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:42:28,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:42:28,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:42:28,216 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:42:28,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:42:28,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:42:28,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:42:28,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:42:28,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:42:28,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:42:28,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:42:28,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:42:28,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:42:28,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:42:28,218 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:42:28,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:42:28,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:42:28,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:42:28,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:42:28,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:42:28,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:42:28,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:42:28,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:42:28,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:42:28,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:42:28,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:42:28,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:42:28,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:42:28,221 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:42:28,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:42:28,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:42:28,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:42:28,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:42:28,712 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:42:28,713 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-09-25 07:42:28,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dbc0b5d8/deceedcc36124cb7ade28d5bd55af371/FLAG788194c65 [2020-09-25 07:42:29,385 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:42:29,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-09-25 07:42:29,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dbc0b5d8/deceedcc36124cb7ade28d5bd55af371/FLAG788194c65 [2020-09-25 07:42:29,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dbc0b5d8/deceedcc36124cb7ade28d5bd55af371 [2020-09-25 07:42:29,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:42:29,724 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:42:29,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:42:29,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:42:29,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:42:29,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a18185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29, skipping insertion in model container [2020-09-25 07:42:29,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:42:29,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:42:30,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:42:30,035 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:42:30,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:42:30,091 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:42:30,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30 WrapperNode [2020-09-25 07:42:30,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:42:30,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:42:30,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:42:30,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:42:30,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (1/1) ... [2020-09-25 07:42:30,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (1/1) ... [2020-09-25 07:42:30,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (1/1) ... [2020-09-25 07:42:30,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (1/1) ... [2020-09-25 07:42:30,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (1/1) ... [2020-09-25 07:42:30,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (1/1) ... [2020-09-25 07:42:30,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (1/1) ... [2020-09-25 07:42:30,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:42:30,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:42:30,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:42:30,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:42:30,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (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 07:42:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:42:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:42:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 07:42:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-25 07:42:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-09-25 07:42:30,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:42:30,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:42:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 07:42:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 07:42:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-25 07:42:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:42:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 07:42:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:42:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:42:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-09-25 07:42:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:42:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:42:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:42:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 07:42:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:42:30,794 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:42:30,794 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 07:42:30,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:42:30 BoogieIcfgContainer [2020-09-25 07:42:30,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:42:30,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:42:30,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:42:30,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:42:30,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:42:29" (1/3) ... [2020-09-25 07:42:30,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b5869a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:42:30, skipping insertion in model container [2020-09-25 07:42:30,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:30" (2/3) ... [2020-09-25 07:42:30,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b5869a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:42:30, skipping insertion in model container [2020-09-25 07:42:30,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:42:30" (3/3) ... [2020-09-25 07:42:30,810 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2020-09-25 07:42:30,823 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:42:30,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:42:30,853 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:42:30,882 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:42:30,882 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:42:30,883 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:42:30,883 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:42:30,883 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:42:30,883 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:42:30,883 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:42:30,883 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:42:30,906 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-25 07:42:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 07:42:30,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:42:30,915 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 07:42:30,916 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:42:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:42:30,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1497092675, now seen corresponding path program 1 times [2020-09-25 07:42:30,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:42:30,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223271063] [2020-09-25 07:42:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:42:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:42:31,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:42:31,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-09-25 07:42:31,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 07:42:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:42:31,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:42:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:31,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:42:31,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:42:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:42:31,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:42:31,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:31,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:31,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 07:42:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:42:31,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:42:31,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:42:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:42:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:31,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:42:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:42:31,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:31,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:42:31,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 07:42:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:31,752 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 07:42:31,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223271063] [2020-09-25 07:42:31,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:42:31,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:42:31,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079927020] [2020-09-25 07:42:31,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:42:31,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:42:31,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:42:31,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:42:31,787 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-09-25 07:42:32,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:42:32,055 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-09-25 07:42:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:42:32,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-25 07:42:32,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:42:32,094 INFO L225 Difference]: With dead ends: 141 [2020-09-25 07:42:32,095 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 07:42:32,100 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 07:42:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 07:42:32,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 07:42:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 07:42:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-09-25 07:42:32,163 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-09-25 07:42:32,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:42:32,163 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-09-25 07:42:32,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:42:32,164 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-09-25 07:42:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 07:42:32,167 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:42:32,167 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 07:42:32,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:42:32,168 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:42:32,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:42:32,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2105627481, now seen corresponding path program 1 times [2020-09-25 07:42:32,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:42:32,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910471850] [2020-09-25 07:42:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:42:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:32,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:32,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:32,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 07:42:32,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:32,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 07:42:32,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:32,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:42:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 07:42:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:42:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:32,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:42:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:32,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:32,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:32,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:32,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:32,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:42:32,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:32,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:32,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:32,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:42:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:32,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:32,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:32,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:42:32,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:32,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:42:32,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:32,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:32,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:32,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:32,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:32,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 07:42:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:32,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:32,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:32,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:42:32,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:32,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 07:42:32,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:32,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:42:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 07:42:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:42:32,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:32,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:42:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:32,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:32,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:32,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:42:32,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:32,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 07:42:32,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:32,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:32,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:42:32,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:32,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:42:32,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:32,774 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 07:42:32,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910471850] [2020-09-25 07:42:32,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:42:32,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:42:32,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871048392] [2020-09-25 07:42:32,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:42:32,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:42:32,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:42:32,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:42:32,784 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-09-25 07:42:33,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:42:33,070 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-09-25 07:42:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:42:33,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 07:42:33,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:42:33,079 INFO L225 Difference]: With dead ends: 88 [2020-09-25 07:42:33,080 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 07:42:33,082 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 07:42:33,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 07:42:33,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-09-25 07:42:33,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 07:42:33,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-25 07:42:33,115 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-09-25 07:42:33,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:42:33,116 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-25 07:42:33,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:42:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-25 07:42:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 07:42:33,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:42:33,122 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 07:42:33,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:42:33,123 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:42:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:42:33,124 INFO L82 PathProgramCache]: Analyzing trace with hash 358345182, now seen corresponding path program 1 times [2020-09-25 07:42:33,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:42:33,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684449333] [2020-09-25 07:42:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:42:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:33,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:33,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:33,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 07:42:33,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:33,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 07:42:33,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:33,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:42:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 07:42:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:42:33,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:42:33,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:42:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:33,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:33,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:33,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:42:33,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:33,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:42:33,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:33,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:33,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:42:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:33,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:33,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:33,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:42:33,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:33,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:42:33,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:33,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:33,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:33,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 07:42:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:33,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:33,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:33,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 07:42:33,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 07:42:33,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:33,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:42:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 07:42:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:42:33,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:42:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:33,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:33,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:33,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 07:42:33,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:33,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 07:42:33,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:33,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:42:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:42:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:33,802 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 07:42:33,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684449333] [2020-09-25 07:42:33,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:42:33,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:42:33,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730361476] [2020-09-25 07:42:33,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:42:33,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:42:33,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:42:33,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:42:33,807 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-09-25 07:42:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:42:34,114 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-09-25 07:42:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:42:34,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-09-25 07:42:34,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:42:34,117 INFO L225 Difference]: With dead ends: 92 [2020-09-25 07:42:34,117 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 07:42:34,120 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 07:42:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 07:42:34,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-09-25 07:42:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 07:42:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-25 07:42:34,144 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-09-25 07:42:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:42:34,147 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-25 07:42:34,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:42:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-25 07:42:34,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 07:42:34,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:42:34,157 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 07:42:34,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:42:34,158 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:42:34,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:42:34,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1239578082, now seen corresponding path program 1 times [2020-09-25 07:42:34,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:42:34,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994374697] [2020-09-25 07:42:34,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:42:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:42:34,204 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:42:34,205 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:42:34,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:42:34,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:42:34 BoogieIcfgContainer [2020-09-25 07:42:34,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:42:34,260 INFO L168 Benchmark]: Toolchain (without parser) took 4534.46 ms. Allocated memory was 138.9 MB in the beginning and 249.6 MB in the end (delta: 110.6 MB). Free memory was 102.3 MB in the beginning and 165.9 MB in the end (delta: -63.7 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:34,261 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:42:34,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.74 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 90.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:34,265 INFO L168 Benchmark]: Boogie Preprocessor took 138.40 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.5 MB in the beginning and 178.5 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:34,267 INFO L168 Benchmark]: RCFGBuilder took 569.45 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 156.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:34,276 INFO L168 Benchmark]: TraceAbstraction took 3450.93 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 156.2 MB in the beginning and 165.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:34,289 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.74 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 90.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.40 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.5 MB in the beginning and 178.5 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 569.45 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 156.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3450.93 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 156.2 MB in the beginning and 165.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 68]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 67, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L60] double x = __VERIFIER_nondet_double(); [L61] double y = 0.0 / 0.0; [L62] CALL, EXPR isnan_double(x) [L16] return x != x; [L62] RET, EXPR isnan_double(x) [L62] COND TRUE !isnan_double(x) [L64] CALL, EXPR fmin_double(x, y) [L45] CALL, EXPR __fpclassify_double(x) [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] RET, EXPR __fpclassify_double(x) [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L64] RET, EXPR fmin_double(x, y) [L64] double res = fmin_double(x, y); [L67] COND TRUE res != x [L68] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, 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, 0.5s 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, 1.8s 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...