/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:10:11,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:10:11,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:10:11,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:10:11,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:10:11,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:10:11,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:10:11,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:10:11,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:10:11,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:10:11,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:10:11,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:10:11,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:10:11,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:10:11,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:10:11,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:10:11,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:10:11,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:10:11,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:10:11,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:10:11,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:10:11,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:10:11,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:10:11,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:10:11,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:10:11,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:10:11,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:10:11,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:10:11,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:10:11,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:10:11,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:10:11,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:10:11,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:10:11,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:10:11,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:10:11,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:10:11,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:10:11,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:10:11,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:10:11,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:10:11,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:10:11,937 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 [2020-09-24 18:10:11,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:10:11,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:10:11,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:10:11,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:10:11,992 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:10:11,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:10:11,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:10:11,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:10:11,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:10:11,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:10:11,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:10:11,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:10:11,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:10:11,996 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:10:11,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:10:11,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:10:11,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:10:11,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:10:11,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:10:11,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:10:11,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:10:11,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:10:11,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:10:11,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:10:11,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:10:11,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:10:11,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:10:11,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:10:11,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:10:11,999 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:10:12,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:10:12,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:10:12,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:10:12,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:10:12,482 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:10:12,483 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float6.c [2020-09-24 18:10:12,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bbca299e/58c589eaa1564f629f1c0a2c3716a91e/FLAG4ef25470e [2020-09-24 18:10:13,120 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:10:13,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-cbmc-regression/float6.c [2020-09-24 18:10:13,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bbca299e/58c589eaa1564f629f1c0a2c3716a91e/FLAG4ef25470e [2020-09-24 18:10:13,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bbca299e/58c589eaa1564f629f1c0a2c3716a91e [2020-09-24 18:10:13,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:10:13,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:10:13,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:10:13,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:10:13,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:10:13,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e85a8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13, skipping insertion in model container [2020-09-24 18:10:13,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:10:13,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:10:13,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:10:13,779 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:10:13,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:10:13,827 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:10:13,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13 WrapperNode [2020-09-24 18:10:13,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:10:13,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:10:13,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:10:13,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:10:13,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ... [2020-09-24 18:10:13,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:10:13,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:10:13,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:10:13,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:10:13,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (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 [2020-09-24 18:10:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:10:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:10:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:10:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:10:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:10:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-24 18:10:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:10:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:10:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:10:14,473 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:10:14,473 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:10:14,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:10:14 BoogieIcfgContainer [2020-09-24 18:10:14,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:10:14,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:10:14,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:10:14,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:10:14,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:10:13" (1/3) ... [2020-09-24 18:10:14,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ff5780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:10:14, skipping insertion in model container [2020-09-24 18:10:14,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (2/3) ... [2020-09-24 18:10:14,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ff5780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:10:14, skipping insertion in model container [2020-09-24 18:10:14,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:10:14" (3/3) ... [2020-09-24 18:10:14,493 INFO L109 eAbstractionObserver]: Analyzing ICFG float6.c [2020-09-24 18:10:14,505 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:10:14,515 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-09-24 18:10:14,534 INFO L251 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-09-24 18:10:14,569 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:10:14,569 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:10:14,569 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:10:14,569 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:10:14,570 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:10:14,570 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:10:14,570 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:10:14,570 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:10:14,604 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-09-24 18:10:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-24 18:10:14,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:10:14,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-24 18:10:14,612 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr30ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr35ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr32ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr33ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr29ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr31ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr34ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:10:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:10:14,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1010211507, now seen corresponding path program 1 times [2020-09-24 18:10:14,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:10:14,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191473921] [2020-09-24 18:10:14,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:10:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:10:14,723 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:10:14,725 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:10:14,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:10:14,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:10:14 BoogieIcfgContainer [2020-09-24 18:10:14,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:10:14,754 INFO L168 Benchmark]: Toolchain (without parser) took 1278.41 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 144.1 MB in the end (delta: -41.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:14,756 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:10:14,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.53 ms. Allocated memory is still 140.5 MB. Free memory was 101.9 MB in the beginning and 91.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:14,758 INFO L168 Benchmark]: Boogie Preprocessor took 125.80 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 181.0 MB in the end (delta: -89.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:14,759 INFO L168 Benchmark]: RCFGBuilder took 526.94 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 155.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:14,760 INFO L168 Benchmark]: TraceAbstraction took 266.63 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 144.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:14,764 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.53 ms. Allocated memory is still 140.5 MB. Free memory was 101.9 MB in the beginning and 91.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.80 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 181.0 MB in the end (delta: -89.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 526.94 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 155.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266.63 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 144.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 7. Possible FailurePath: [L7] COND TRUE !(1.0!=2.0) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 122 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, 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=122occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...