/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-benchs/cast_float_union.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:41:54,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:41:54,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:41:54,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:41:54,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:41:54,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:41:54,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:41:54,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:41:54,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:41:54,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:41:54,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:41:54,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:41:54,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:41:54,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:41:54,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:41:54,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:41:54,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:41:54,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:41:54,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:41:54,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:41:54,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:41:54,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:41:54,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:41:54,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:41:54,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:41:54,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:41:54,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:41:54,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:41:54,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:41:54,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:41:54,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:41:54,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:41:54,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:41:54,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:41:54,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:41:54,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:41:54,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:41:54,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:41:54,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:41:54,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:41:54,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:41:54,489 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 07:41:54,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:41:54,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:41:54,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:41:54,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:41:54,543 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:41:54,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:41:54,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:41:54,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:41:54,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:41:54,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:41:54,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:41:54,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:41:54,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:41:54,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:41:54,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:41:54,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:41:54,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:41:54,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:41:54,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:41:54,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:41:54,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:41:54,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:41:54,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:41:54,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:41:54,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:41:54,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:41:54,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:41:54,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:41:54,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:41:54,550 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 07:41:55,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:41:55,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:41:55,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:41:55,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:41:55,048 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:41:55,049 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_float_union.c [2020-09-25 07:41:55,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e08f822d/01f3fad525ec4092a843965eeff042c5/FLAG98416ff11 [2020-09-25 07:41:55,699 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:41:55,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/cast_float_union.c [2020-09-25 07:41:55,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e08f822d/01f3fad525ec4092a843965eeff042c5/FLAG98416ff11 [2020-09-25 07:41:56,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e08f822d/01f3fad525ec4092a843965eeff042c5 [2020-09-25 07:41:56,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:41:56,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:41:56,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:41:56,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:41:56,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:41:56,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,079 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 25.09 07:41:56, skipping insertion in model container [2020-09-25 07:41:56,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:41:56,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:41:56,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:41:56,357 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:41:56,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:41:56,414 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:41:56,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56 WrapperNode [2020-09-25 07:41:56,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:41:56,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:41:56,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:41:56,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:41:56,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (1/1) ... [2020-09-25 07:41:56,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:41:56,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:41:56,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:41:56,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:41:56,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (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 07:41:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:41:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:41:56,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 07:41:56,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 07:41:56,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-09-25 07:41:56,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:41:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:41:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 07:41:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:41:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 07:41:56,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 07:41:56,626 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-09-25 07:41:56,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:41:56,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 07:41:56,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:41:56,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:41:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:41:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 07:41:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:41:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:41:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:41:57,001 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:41:57,001 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:41:57,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:41:57 BoogieIcfgContainer [2020-09-25 07:41:57,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:41:57,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:41:57,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:41:57,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:41:57,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:41:56" (1/3) ... [2020-09-25 07:41:57,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8f10b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:41:57, skipping insertion in model container [2020-09-25 07:41:57,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:41:56" (2/3) ... [2020-09-25 07:41:57,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8f10b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:41:57, skipping insertion in model container [2020-09-25 07:41:57,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:41:57" (3/3) ... [2020-09-25 07:41:57,016 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_float_union.c [2020-09-25 07:41:57,027 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:41:57,036 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:41:57,056 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:41:57,083 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:41:57,083 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:41:57,083 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:41:57,084 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:41:57,084 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:41:57,084 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:41:57,084 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:41:57,085 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:41:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-09-25 07:41:57,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:41:57,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 63 states. [2020-09-25 07:41:57,199 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 07:41:57,199 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 07:41:57,199 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 07:41:57,199 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-25 07:41:57,199 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 07:41:57,199 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 07:41:57,200 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 07:41:57,200 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-09-25 07:41:57,200 INFO L268 CegarLoopResult]: For program point L27-4(line 27) no Hoare annotation was computed. [2020-09-25 07:41:57,200 INFO L268 CegarLoopResult]: For program point L27-5(line 27) no Hoare annotation was computed. [2020-09-25 07:41:57,200 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 07:41:57,201 INFO L268 CegarLoopResult]: For program point L40-1(lines 40 46) no Hoare annotation was computed. [2020-09-25 07:41:57,201 INFO L268 CegarLoopResult]: For program point L40-2(line 40) no Hoare annotation was computed. [2020-09-25 07:41:57,201 INFO L268 CegarLoopResult]: For program point L36(lines 36 46) no Hoare annotation was computed. [2020-09-25 07:41:57,201 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed. [2020-09-25 07:41:57,201 INFO L268 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-09-25 07:41:57,201 INFO L268 CegarLoopResult]: For program point L40-5(lines 36 46) no Hoare annotation was computed. [2020-09-25 07:41:57,202 INFO L268 CegarLoopResult]: For program point L36-3(line 36) no Hoare annotation was computed. [2020-09-25 07:41:57,202 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 07:41:57,202 INFO L268 CegarLoopResult]: For program point castFINAL(lines 24 48) no Hoare annotation was computed. [2020-09-25 07:41:57,202 INFO L271 CegarLoopResult]: At program point castENTRY(lines 24 48) the Hoare annotation is: true [2020-09-25 07:41:57,203 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-25 07:41:57,203 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-25 07:41:57,203 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 07:41:57,203 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-25 07:41:57,203 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 07:41:57,204 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 07:41:57,204 INFO L268 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-09-25 07:41:57,204 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 07:41:57,204 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-09-25 07:41:57,204 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 07:41:57,204 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 07:41:57,205 INFO L268 CegarLoopResult]: For program point castEXIT(lines 24 48) no Hoare annotation was computed. [2020-09-25 07:41:57,205 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 07:41:57,205 INFO L268 CegarLoopResult]: For program point L42-1(line 42) no Hoare annotation was computed. [2020-09-25 07:41:57,205 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-09-25 07:41:57,205 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed. [2020-09-25 07:41:57,205 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 07:41:57,206 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-25 07:41:57,206 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-09-25 07:41:57,206 INFO L268 CegarLoopResult]: For program point L38-3(line 38) no Hoare annotation was computed. [2020-09-25 07:41:57,206 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 07:41:57,206 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 07:41:57,206 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 07:41:57,207 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 07:41:57,207 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 07:41:57,207 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:41:57,207 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-09-25 07:41:57,207 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:41:57,207 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:41:57,208 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 07:41:57,208 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 07:41:57,208 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:41:57,208 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 8 10) no Hoare annotation was computed. [2020-09-25 07:41:57,208 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 07:41:57,208 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 07:41:57,209 INFO L268 CegarLoopResult]: For program point L9-3(lines 8 10) no Hoare annotation was computed. [2020-09-25 07:41:57,209 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2020-09-25 07:41:57,209 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 50 58) the Hoare annotation is: true [2020-09-25 07:41:57,209 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 50 58) no Hoare annotation was computed. [2020-09-25 07:41:57,209 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 07:41:57,210 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 50 58) no Hoare annotation was computed. [2020-09-25 07:41:57,210 INFO L271 CegarLoopResult]: At program point L56(line 56) the Hoare annotation is: true [2020-09-25 07:41:57,210 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 07:41:57,210 INFO L268 CegarLoopResult]: For program point L56-1(line 56) no Hoare annotation was computed. [2020-09-25 07:41:57,210 INFO L268 CegarLoopResult]: For program point L55-1(line 55) no Hoare annotation was computed. [2020-09-25 07:41:57,211 INFO L268 CegarLoopResult]: For program point L56-2(line 56) no Hoare annotation was computed. [2020-09-25 07:41:57,211 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-25 07:41:57,211 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertENTRY(line 11) no Hoare annotation was computed. [2020-09-25 07:41:57,211 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 07:41:57,211 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 07:41:57,212 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 11) no Hoare annotation was computed. [2020-09-25 07:41:57,212 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-25 07:41:57,212 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-09-25 07:41:57,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:41:57 BoogieIcfgContainer [2020-09-25 07:41:57,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:41:57,226 INFO L168 Benchmark]: Toolchain (without parser) took 1158.90 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 104.0 MB in the beginning and 145.6 MB in the end (delta: -41.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:41:57,227 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:41:57,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.70 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 92.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:41:57,229 INFO L168 Benchmark]: Boogie Preprocessor took 126.00 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.7 MB in the beginning and 180.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:41:57,230 INFO L168 Benchmark]: RCFGBuilder took 465.05 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 159.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:41:57,231 INFO L168 Benchmark]: TraceAbstraction took 213.75 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 145.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:41:57,235 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 344.70 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 92.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.00 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.7 MB in the beginning and 180.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.05 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 159.5 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213.75 ms. Allocated memory is still 202.9 MB. Free memory was 158.8 MB in the beginning and 145.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 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, 74 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=63occurred 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...