/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=SMALLESTAMONGWIDE --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_1032c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:05:01,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:05:01,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:05:01,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:05:01,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:05:01,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:05:01,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:05:01,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:05:01,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:05:01,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:05:01,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:05:01,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:05:01,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:05:01,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:05:01,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:05:01,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:05:01,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:05:01,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:05:01,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:05:01,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:05:01,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:05:01,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:05:01,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:05:01,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:05:01,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:05:01,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:05:01,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:05:01,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:05:01,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:05:01,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:05:01,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:05:01,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:05:01,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:05:01,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:05:01,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:05:01,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:05:01,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:05:01,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:05:01,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:05:01,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:05:01,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:05:01,967 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 11:05:02,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:05:02,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:05:02,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:05:02,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:05:02,020 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:05:02,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:05:02,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:05:02,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:05:02,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:05:02,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:05:02,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:05:02,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:05:02,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:05:02,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:05:02,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:05:02,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:05:02,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:05:02,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:05:02,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:05:02,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:05:02,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:05:02,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:05:02,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:05:02,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:05:02,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:05:02,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:05:02,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:05:02,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:05:02,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:05:02,026 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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:05:02,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:05:02,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:05:02,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:05:02,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:05:02,588 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:05:02,589 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2020-09-25 11:05:02,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7ae30ff7/b408582295ed4bba836cf14a1190ab57/FLAG0e7c70820 [2020-09-25 11:05:03,272 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:05:03,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2020-09-25 11:05:03,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7ae30ff7/b408582295ed4bba836cf14a1190ab57/FLAG0e7c70820 [2020-09-25 11:05:03,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7ae30ff7/b408582295ed4bba836cf14a1190ab57 [2020-09-25 11:05:03,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:05:03,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:05:03,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:05:03,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:05:03,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:05:03,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:05:03" (1/1) ... [2020-09-25 11:05:03,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43889371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:03, skipping insertion in model container [2020-09-25 11:05:03,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:05:03" (1/1) ... [2020-09-25 11:05:03,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:05:03,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:05:04,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:05:04,049 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:05:04,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:05:04,233 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:05:04,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04 WrapperNode [2020-09-25 11:05:04,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:05:04,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:05:04,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:05:04,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:05:04,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (1/1) ... [2020-09-25 11:05:04,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (1/1) ... [2020-09-25 11:05:04,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (1/1) ... [2020-09-25 11:05:04,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (1/1) ... [2020-09-25 11:05:04,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (1/1) ... [2020-09-25 11:05:04,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (1/1) ... [2020-09-25 11:05:04,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (1/1) ... [2020-09-25 11:05:04,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:05:04,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:05:04,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:05:04,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:05:04,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (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 11:05:04,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:05:04,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:05:04,406 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2020-09-25 11:05:04,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-09-25 11:05:04,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:05:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:05:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2020-09-25 11:05:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:05:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 11:05:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:05:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:05:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:05:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 11:05:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-09-25 11:05:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:05:04,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:05:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:05:04,921 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:05:04,921 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 11:05:04,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:05:04 BoogieIcfgContainer [2020-09-25 11:05:04,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:05:04,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:05:04,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:05:04,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:05:04,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:05:03" (1/3) ... [2020-09-25 11:05:04,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9588a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:05:04, skipping insertion in model container [2020-09-25 11:05:04,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:05:04" (2/3) ... [2020-09-25 11:05:04,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9588a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:05:04, skipping insertion in model container [2020-09-25 11:05:04,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:05:04" (3/3) ... [2020-09-25 11:05:04,937 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2020-09-25 11:05:04,947 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:05:04,958 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:05:04,979 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:05:05,007 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:05:05,007 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:05:05,007 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:05:05,007 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:05:05,008 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:05:05,008 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:05:05,008 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:05:05,008 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:05:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-09-25 11:05:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 11:05:05,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:05:05,045 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] [2020-09-25 11:05:05,045 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:05:05,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:05:05,053 INFO L82 PathProgramCache]: Analyzing trace with hash 223530101, now seen corresponding path program 1 times [2020-09-25 11:05:05,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:05:05,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984491469] [2020-09-25 11:05:05,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:05:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:05:05,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:05:05,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:05:05,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:05:05,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 11:05:05,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:05:05,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 11:05:05,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:05:05,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:05:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:05:05,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 11:05:05,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:05:05,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:05:05,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:05:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:05:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:05:05,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:05:05,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:05:05,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:05:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:05:05,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:05:05,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:05:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:05:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:05:05,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:05:05,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:05:05,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 11:05:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:05:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:05:05,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:05:05,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:05:05,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:05:05,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:05:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 11:05:05,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:05:05,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:05:05,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:05:05,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:05:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:05:05,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:05:05,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 11:05:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:05:05,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:05:05,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:05:05,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 11:05:05,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:05:05,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 11:05:05,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:05:05,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:05:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:05:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 11:05:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:05:05,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:05:05,801 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 11:05:05,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984491469] [2020-09-25 11:05:05,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:05:05,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:05:05,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976132724] [2020-09-25 11:05:05,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:05:05,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:05:05,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:05:05,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:05:05,837 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 4 states. [2020-09-25 11:05:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:05:06,181 INFO L93 Difference]: Finished difference Result 202 states and 231 transitions. [2020-09-25 11:05:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 11:05:06,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-09-25 11:05:06,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:05:06,199 INFO L225 Difference]: With dead ends: 202 [2020-09-25 11:05:06,199 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 11:05:06,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:05:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 11:05:06,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-09-25 11:05:06,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 11:05:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2020-09-25 11:05:06,268 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 38 [2020-09-25 11:05:06,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:05:06,268 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2020-09-25 11:05:06,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:05:06,269 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2020-09-25 11:05:06,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 11:05:06,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:05:06,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:05:06,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:05:06,273 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:05:06,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:05:06,273 INFO L82 PathProgramCache]: Analyzing trace with hash 32877217, now seen corresponding path program 1 times [2020-09-25 11:05:06,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:05:06,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819154844] [2020-09-25 11:05:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:05:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 11:05:06,351 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 11:05:06,351 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 11:05:06,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:05:06,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:05:06 BoogieIcfgContainer [2020-09-25 11:05:06,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:05:06,385 INFO L168 Benchmark]: Toolchain (without parser) took 2755.83 ms. Allocated memory was 148.4 MB in the beginning and 234.4 MB in the end (delta: 86.0 MB). Free memory was 104.5 MB in the beginning and 180.4 MB in the end (delta: -75.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 11:05:06,386 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 11:05:06,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.19 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 103.9 MB in the beginning and 180.3 MB in the end (delta: -76.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-09-25 11:05:06,388 INFO L168 Benchmark]: Boogie Preprocessor took 91.11 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 178.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-25 11:05:06,389 INFO L168 Benchmark]: RCFGBuilder took 601.13 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 150.7 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-09-25 11:05:06,390 INFO L168 Benchmark]: TraceAbstraction took 1452.74 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 150.1 MB in the beginning and 180.4 MB in the end (delta: -30.3 MB). Peak memory consumption was 653.2 kB. Max. memory is 7.1 GB. [2020-09-25 11:05:06,394 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 601.19 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 103.9 MB in the beginning and 180.3 MB in the end (delta: -76.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.11 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 178.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 601.13 ms. Allocated memory is still 203.4 MB. Free memory was 178.4 MB in the beginning and 150.7 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1452.74 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 150.1 MB in the beginning and 180.4 MB in the end (delta: -30.3 MB). Peak memory consumption was 653.2 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 40, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = 1.0 / 0.0; [L87] CALL, EXPR round_double(x) [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; [L18] ieee_double_shape_type ew_u; [L19] ew_u.value = (x) [L20] EXPR ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L24] COND FALSE !(exponent_less_1023 < 20) [L38] COND TRUE exponent_less_1023 > 51 [L39] COND TRUE exponent_less_1023 == 1024 [L40] return x + x; [L87] RET, EXPR round_double(x) [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) [L65] __int32_t hx, lx; [L67] ieee_double_shape_type ew_u; [L68] ew_u.value = (x) [L69] EXPR ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L90] RET, EXPR isinf_double(res) [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 17 SDslu, 82 SDs, 0 SdLazy, 124 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 2590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...