/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 --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=1000 --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-eb0fd7c [2020-09-21 12:19:55,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:19:55,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:19:55,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:19:55,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:19:55,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:19:55,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:19:55,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:19:55,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:19:55,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:19:55,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:19:55,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:19:55,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:19:55,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:19:55,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:19:55,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:19:55,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:19:55,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:19:55,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:19:55,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:19:55,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:19:55,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:19:55,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:19:55,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:19:55,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:19:55,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:19:55,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:19:55,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:19:55,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:19:55,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:19:55,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:19:55,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:19:55,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:19:55,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:19:55,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:19:55,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:19:55,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:19:55,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:19:55,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:19:55,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:19:55,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:19:55,866 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 [2020-09-21 12:19:55,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:19:55,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:19:55,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:19:55,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:19:55,919 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:19:55,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:19:55,920 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:19:55,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:19:55,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:19:55,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:19:55,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:19:55,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:19:55,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:19:55,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:19:55,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:19:55,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:19:55,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:19:55,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:19:55,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:19:55,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:19:55,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:19:55,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:19:55,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:19:55,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:19:55,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:19:55,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:19:55,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:19:55,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:19:55,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:19:55,926 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.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=1000;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=1000;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=1000;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=1000;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:19:56,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:19:56,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:19:56,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:19:56,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:19:56,408 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:19:56,409 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float6.c [2020-09-21 12:19:56,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d1c69435/0249744a6c0c4e0dbc6e46a6ecb1e13d/FLAG30aaa264b [2020-09-21 12:19:57,046 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:19:57,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-cbmc-regression/float6.c [2020-09-21 12:19:57,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d1c69435/0249744a6c0c4e0dbc6e46a6ecb1e13d/FLAG30aaa264b [2020-09-21 12:19:57,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d1c69435/0249744a6c0c4e0dbc6e46a6ecb1e13d [2020-09-21 12:19:57,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:19:57,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:19:57,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:19:57,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:19:57,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:19:57,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481c894b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57, skipping insertion in model container [2020-09-21 12:19:57,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:19:57,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:19:57,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:19:57,694 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:19:57,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:19:57,765 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:19:57,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57 WrapperNode [2020-09-21 12:19:57,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:19:57,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:19:57,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:19:57,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:19:57,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (1/1) ... [2020-09-21 12:19:57,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:19:57,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:19:57,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:19:57,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:19:57,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (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 [2020-09-21 12:19:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:19:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:19:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:19:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:19:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:19:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-21 12:19:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:19:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:19:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:19:58,405 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:19:58,405 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:19:58,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:19:58 BoogieIcfgContainer [2020-09-21 12:19:58,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:19:58,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:19:58,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:19:58,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:19:58,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:19:57" (1/3) ... [2020-09-21 12:19:58,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afaddd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:19:58, skipping insertion in model container [2020-09-21 12:19:58,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:19:57" (2/3) ... [2020-09-21 12:19:58,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afaddd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:19:58, skipping insertion in model container [2020-09-21 12:19:58,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:19:58" (3/3) ... [2020-09-21 12:19:58,423 INFO L109 eAbstractionObserver]: Analyzing ICFG float6.c [2020-09-21 12:19:58,434 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:19:58,444 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-09-21 12:19:58,467 INFO L251 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-09-21 12:19:58,502 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:19:58,502 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:19:58,502 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:19:58,502 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:19:58,502 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:19:58,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:19:58,503 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:19:58,503 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:19:58,537 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-09-21 12:19:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-21 12:19:58,545 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:58,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-21 12:19:58,547 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]=== [2020-09-21 12:19:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:58,555 INFO L82 PathProgramCache]: Analyzing trace with hash 895571895, now seen corresponding path program 1 times [2020-09-21 12:19:58,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:58,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307116658] [2020-09-21 12:19:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:19:58,654 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:19:58,656 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:19:58,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:19:58,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:19:58 BoogieIcfgContainer [2020-09-21 12:19:58,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:19:58,686 INFO L168 Benchmark]: Toolchain (without parser) took 1274.26 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 141.6 MB in the end (delta: -41.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:19:58,687 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 12:19:58,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.38 ms. Allocated memory is still 137.4 MB. Free memory was 100.0 MB in the beginning and 89.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-09-21 12:19:58,689 INFO L168 Benchmark]: Boogie Preprocessor took 126.08 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 89.2 MB in the beginning and 178.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:19:58,690 INFO L168 Benchmark]: RCFGBuilder took 519.39 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 154.0 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:19:58,691 INFO L168 Benchmark]: TraceAbstraction took 267.94 ms. Allocated memory is still 200.8 MB. Free memory was 153.3 MB in the beginning and 141.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:19:58,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.38 ms. Allocated memory is still 137.4 MB. Free memory was 100.0 MB in the beginning and 89.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.08 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 89.2 MB in the beginning and 178.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 519.39 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 154.0 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 267.94 ms. Allocated memory is still 200.8 MB. Free memory was 153.3 MB in the beginning and 141.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 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, 118 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=118occurred 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...