/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/cast_float_union.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:14:23,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:14:23,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:14:23,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:14:23,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:14:23,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:14:23,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:14:23,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:14:23,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:14:23,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:14:23,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:14:23,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:14:23,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:14:23,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:14:23,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:14:23,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:14:23,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:14:23,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:14:23,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:14:23,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:14:23,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:14:23,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:14:23,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:14:23,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:14:23,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:14:23,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:14:23,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:14:23,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:14:23,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:14:23,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:14:23,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:14:23,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:14:23,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:14:23,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:14:23,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:14:23,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:14:23,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:14:23,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:14:23,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:14:23,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:14:23,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:14:23,657 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 [2020-10-13 10:14:23,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:14:23,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:14:23,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:14:23,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:14:23,699 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:14:23,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:14:23,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:14:23,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:14:23,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:14:23,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:14:23,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:14:23,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:14:23,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:14:23,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:14:23,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:14:23,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:14:23,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:14:23,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:14:23,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:14:23,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:14:23,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:14:23,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:14:23,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:14:23,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:14:23,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:14:23,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:14:23,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:14:23,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:14:23,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:14:23,705 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:14:24,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:14:24,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:14:24,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:14:24,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:14:24,033 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:14:24,034 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_float_union.c [2020-10-13 10:14:24,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/205b941df/b8f3ca87523041b495514a15195f8839/FLAGc21077989 [2020-10-13 10:14:24,583 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:14:24,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/cast_float_union.c [2020-10-13 10:14:24,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/205b941df/b8f3ca87523041b495514a15195f8839/FLAGc21077989 [2020-10-13 10:14:24,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/205b941df/b8f3ca87523041b495514a15195f8839 [2020-10-13 10:14:24,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:14:24,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:14:24,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:14:24,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:14:24,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:14:24,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:14:24" (1/1) ... [2020-10-13 10:14:24,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4576ff6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:24, skipping insertion in model container [2020-10-13 10:14:24,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:14:24" (1/1) ... [2020-10-13 10:14:24,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:14:24,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:14:25,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:14:25,157 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:14:25,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:14:25,198 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:14:25,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25 WrapperNode [2020-10-13 10:14:25,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:14:25,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:14:25,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:14:25,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:14:25,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (1/1) ... [2020-10-13 10:14:25,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (1/1) ... [2020-10-13 10:14:25,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (1/1) ... [2020-10-13 10:14:25,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (1/1) ... [2020-10-13 10:14:25,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (1/1) ... [2020-10-13 10:14:25,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (1/1) ... [2020-10-13 10:14:25,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (1/1) ... [2020-10-13 10:14:25,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:14:25,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:14:25,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:14:25,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:14:25,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (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 [2020-10-13 10:14:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:14:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:14:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 10:14:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 10:14:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-10-13 10:14:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:14:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:14:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-13 10:14:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:14:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 10:14:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 10:14:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-10-13 10:14:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:14:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-13 10:14:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:14:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:14:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:14:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-13 10:14:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:14:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:14:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:14:25,644 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:14:25,644 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 10:14:25,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:14:25 BoogieIcfgContainer [2020-10-13 10:14:25,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:14:25,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:14:25,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:14:25,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:14:25,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:14:24" (1/3) ... [2020-10-13 10:14:25,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a96bcb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:14:25, skipping insertion in model container [2020-10-13 10:14:25,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:14:25" (2/3) ... [2020-10-13 10:14:25,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a96bcb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:14:25, skipping insertion in model container [2020-10-13 10:14:25,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:14:25" (3/3) ... [2020-10-13 10:14:25,657 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_float_union.c [2020-10-13 10:14:25,668 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:14:25,676 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:14:25,691 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:14:25,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:14:25,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:14:25,726 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:14:25,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:14:25,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:14:25,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:14:25,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:14:25,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:14:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-13 10:14:25,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 10:14:25,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 19 states. [2020-10-13 10:14:25,834 INFO L268 CegarLoopResult]: For program point castEXIT(lines 24 48) no Hoare annotation was computed. [2020-10-13 10:14:25,834 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 10:14:25,834 INFO L268 CegarLoopResult]: For program point castFINAL(lines 24 48) no Hoare annotation was computed. [2020-10-13 10:14:25,834 INFO L271 CegarLoopResult]: At program point castENTRY(lines 24 48) the Hoare annotation is: true [2020-10-13 10:14:25,835 INFO L268 CegarLoopResult]: For program point L40(lines 40 46) no Hoare annotation was computed. [2020-10-13 10:14:25,835 INFO L268 CegarLoopResult]: For program point L40-2(lines 36 46) no Hoare annotation was computed. [2020-10-13 10:14:25,835 INFO L268 CegarLoopResult]: For program point L36(lines 36 46) no Hoare annotation was computed. [2020-10-13 10:14:25,835 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:14:25,835 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:14:25,835 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:14:25,836 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:14:25,836 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 10:14:25,836 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:14:25,836 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:14:25,836 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 8 10) no Hoare annotation was computed. [2020-10-13 10:14:25,837 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-10-13 10:14:25,837 INFO L268 CegarLoopResult]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2020-10-13 10:14:25,837 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2020-10-13 10:14:25,837 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 50 58) the Hoare annotation is: true [2020-10-13 10:14:25,837 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 50 58) no Hoare annotation was computed. [2020-10-13 10:14:25,837 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 50 58) no Hoare annotation was computed. [2020-10-13 10:14:25,838 INFO L271 CegarLoopResult]: At program point L56(line 56) the Hoare annotation is: true [2020-10-13 10:14:25,838 INFO L268 CegarLoopResult]: For program point L56-1(line 56) no Hoare annotation was computed. [2020-10-13 10:14:25,838 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertENTRY(line 11) no Hoare annotation was computed. [2020-10-13 10:14:25,838 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-10-13 10:14:25,838 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-10-13 10:14:25,838 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 11) no Hoare annotation was computed. [2020-10-13 10:14:25,839 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-10-13 10:14:25,839 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-10-13 10:14:25,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:14:25 BoogieIcfgContainer [2020-10-13 10:14:25,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:14:25,849 INFO L168 Benchmark]: Toolchain (without parser) took 902.61 ms. Allocated memory was 148.9 MB in the beginning and 206.0 MB in the end (delta: 57.1 MB). Free memory was 103.3 MB in the beginning and 155.6 MB in the end (delta: -52.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:14:25,850 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-13 10:14:25,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.07 ms. Allocated memory is still 148.9 MB. Free memory was 103.1 MB in the beginning and 92.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-10-13 10:14:25,855 INFO L168 Benchmark]: Boogie Preprocessor took 136.77 ms. Allocated memory was 148.9 MB in the beginning and 206.0 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 183.4 MB in the end (delta: -91.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-13 10:14:25,857 INFO L168 Benchmark]: RCFGBuilder took 311.75 ms. Allocated memory is still 206.0 MB. Free memory was 183.4 MB in the beginning and 166.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:14:25,858 INFO L168 Benchmark]: TraceAbstraction took 196.14 ms. Allocated memory is still 206.0 MB. Free memory was 165.7 MB in the beginning and 155.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:14:25,864 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 148.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.07 ms. Allocated memory is still 148.9 MB. Free memory was 103.1 MB in the beginning and 92.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.77 ms. Allocated memory was 148.9 MB in the beginning and 206.0 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 183.4 MB in the end (delta: -91.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.75 ms. Allocated memory is still 206.0 MB. Free memory was 183.4 MB in the beginning and 166.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196.14 ms. Allocated memory is still 206.0 MB. Free memory was 165.7 MB in the beginning and 155.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...