/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=WIDEST --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_ptr.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:06:59,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:06:59,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:06:59,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:06:59,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:06:59,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:06:59,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:06:59,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:06:59,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:06:59,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:06:59,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:06:59,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:06:59,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:06:59,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:06:59,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:06:59,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:06:59,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:06:59,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:06:59,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:06:59,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:06:59,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:06:59,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:06:59,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:06:59,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:06:59,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:06:59,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:06:59,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:06:59,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:06:59,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:06:59,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:06:59,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:06:59,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:06:59,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:06:59,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:06:59,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:06:59,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:06:59,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:06:59,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:06:59,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:06:59,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:06:59,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:06:59,132 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 03:06:59,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:06:59,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:06:59,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:06:59,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:06:59,164 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:06:59,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:06:59,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:06:59,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:06:59,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:06:59,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:06:59,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:06:59,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:06:59,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:06:59,166 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:06:59,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:06:59,166 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:06:59,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:06:59,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:06:59,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:06:59,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:06:59,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:06:59,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:06:59,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:06:59,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:06:59,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:06:59,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:06:59,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:06:59,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:06:59,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:06:59,169 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:06:59,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:06:59,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:06:59,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:06:59,797 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:06:59,798 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:06:59,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_float_ptr.c [2020-09-25 03:06:59,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1662a738a/ce613d9eca0e49e3ad5afcad198cf336/FLAG4a7f23171 [2020-09-25 03:07:00,442 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:07:00,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/cast_float_ptr.c [2020-09-25 03:07:00,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1662a738a/ce613d9eca0e49e3ad5afcad198cf336/FLAG4a7f23171 [2020-09-25 03:07:00,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1662a738a/ce613d9eca0e49e3ad5afcad198cf336 [2020-09-25 03:07:00,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:07:00,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:07:00,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:07:00,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:07:00,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:07:00,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:00" (1/1) ... [2020-09-25 03:07:00,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c1a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:00, skipping insertion in model container [2020-09-25 03:07:00,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:00" (1/1) ... [2020-09-25 03:07:00,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:07:00,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:07:01,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:07:01,163 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:07:01,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:07:01,229 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:07:01,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01 WrapperNode [2020-09-25 03:07:01,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:07:01,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:07:01,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:07:01,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:07:01,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (1/1) ... [2020-09-25 03:07:01,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (1/1) ... [2020-09-25 03:07:01,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (1/1) ... [2020-09-25 03:07:01,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (1/1) ... [2020-09-25 03:07:01,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (1/1) ... [2020-09-25 03:07:01,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (1/1) ... [2020-09-25 03:07:01,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (1/1) ... [2020-09-25 03:07:01,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:07:01,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:07:01,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:07:01,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:07:01,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (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 03:07:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:07:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:07:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 03:07:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-09-25 03:07:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:07:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:07:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 03:07:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 03:07:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-09-25 03:07:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:07:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 03:07:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:07:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:07:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:07:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 03:07:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:07:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:07:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:07:01,815 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:07:01,816 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:07:01,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:01 BoogieIcfgContainer [2020-09-25 03:07:01,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:07:01,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:07:01,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:07:01,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:07:01,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:07:00" (1/3) ... [2020-09-25 03:07:01,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6874ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:01, skipping insertion in model container [2020-09-25 03:07:01,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:01" (2/3) ... [2020-09-25 03:07:01,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6874ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:01, skipping insertion in model container [2020-09-25 03:07:01,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:01" (3/3) ... [2020-09-25 03:07:01,831 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-09-25 03:07:01,843 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:07:01,865 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:07:01,889 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:07:01,916 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:07:01,917 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:07:01,917 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:07:01,917 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:07:01,917 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:07:01,917 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:07:01,917 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:07:01,917 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:07:01,943 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-25 03:07:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 03:07:01,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:07:01,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:07:01,953 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:07:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:07:01,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1409954032, now seen corresponding path program 1 times [2020-09-25 03:07:01,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:07:01,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908546840] [2020-09-25 03:07:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:07:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:07:02,160 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:07:02,160 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:07:02,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:07:02,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:07:02 BoogieIcfgContainer [2020-09-25 03:07:02,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:07:02,193 INFO L168 Benchmark]: Toolchain (without parser) took 1383.33 ms. Allocated memory was 146.3 MB in the beginning and 200.8 MB in the end (delta: 54.5 MB). Free memory was 102.2 MB in the beginning and 141.8 MB in the end (delta: -39.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:02,194 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-25 03:07:02,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.86 ms. Allocated memory is still 146.3 MB. Free memory was 101.8 MB in the beginning and 91.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:02,196 INFO L168 Benchmark]: Boogie Preprocessor took 133.92 ms. Allocated memory was 146.3 MB in the beginning and 200.8 MB in the end (delta: 54.5 MB). Free memory was 91.7 MB in the beginning and 178.0 MB in the end (delta: -86.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:02,197 INFO L168 Benchmark]: RCFGBuilder took 453.62 ms. Allocated memory is still 200.8 MB. Free memory was 178.0 MB in the beginning and 156.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:02,198 INFO L168 Benchmark]: TraceAbstraction took 365.63 ms. Allocated memory is still 200.8 MB. Free memory was 155.7 MB in the beginning and 141.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:02,202 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 414.86 ms. Allocated memory is still 146.3 MB. Free memory was 101.8 MB in the beginning and 91.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.92 ms. Allocated memory was 146.3 MB in the beginning and 200.8 MB in the end (delta: 54.5 MB). Free memory was 91.7 MB in the beginning and 178.0 MB in the end (delta: -86.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.62 ms. Allocated memory is still 200.8 MB. Free memory was 178.0 MB in the beginning and 156.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 365.63 ms. Allocated memory is still 200.8 MB. Free memory was 155.7 MB in the beginning and 141.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 23, overapproximation of bitwiseAnd at line 11. Possible FailurePath: [L32] double a; [L33] float r; [L35] a = __VERIFIER_nondet_double() [L36] CALL cast(a) [L8] double dmax; [L9] float f; [L11] EXPR \read(d) [L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L13] ((unsigned*)&dmax)[0] = 0x47efffff [L14] ((unsigned*)&dmax)[1] = 0xe0000000 [L16] EXPR \read(d) [L16] EXPR \read(dmax) [L16] COND FALSE !(d > dmax) [L19] EXPR \read(d) [L19] EXPR \read(dmax) [L19] COND FALSE !(-d > dmax) [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) [L3] COND TRUE !(cond) [L3] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=81occurred 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, 38 NumberOfCodeBlocks, 38 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...