/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -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-d623d84 [2020-07-20 10:44:41,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:44:41,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:44:41,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:44:41,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:44:41,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:44:41,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:44:41,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:44:41,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:44:41,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:44:41,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:44:41,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:44:41,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:44:41,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:44:41,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:44:41,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:44:41,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:44:41,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:44:41,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:44:41,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:44:41,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:44:41,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:44:41,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:44:41,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:44:41,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:44:41,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:44:41,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:44:41,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:44:41,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:44:41,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:44:41,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:44:41,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:44:41,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:44:41,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:44:41,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:44:41,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:44:41,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:44:41,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:44:41,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:44:41,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:44:41,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:44:41,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 10:44:41,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:44:41,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:44:41,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:44:41,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:44:41,135 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:44:41,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:44:41,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:44:41,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:44:41,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:44:41,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:44:41,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:44:41,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:44:41,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:44:41,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:44:41,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:44:41,137 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:44:41,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:44:41,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:44:41,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:44:41,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:44:41,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:44:41,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:44:41,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:44:41,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:44:41,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:44:41,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:44:41,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:41,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:44:41,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:44:41,140 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:44:41,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:44:41,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:44:41,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:44:41,447 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:44:41,450 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:44:41,452 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_float_ptr.c [2020-07-20 10:44:41,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314626545/14f6cd03cea04281b05bf5bc5f5edfd8/FLAGb0301076a [2020-07-20 10:44:42,011 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:44:42,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_float_ptr.c [2020-07-20 10:44:42,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314626545/14f6cd03cea04281b05bf5bc5f5edfd8/FLAGb0301076a [2020-07-20 10:44:42,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314626545/14f6cd03cea04281b05bf5bc5f5edfd8 [2020-07-20 10:44:42,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:44:42,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:44:42,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:44:42,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:44:42,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:44:42,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52590782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42, skipping insertion in model container [2020-07-20 10:44:42,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:44:42,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:44:42,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:44:42,584 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:44:42,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:44:42,616 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:44:42,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42 WrapperNode [2020-07-20 10:44:42,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:44:42,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:44:42,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:44:42,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:44:42,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... [2020-07-20 10:44:42,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:44:42,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:44:42,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:44:42,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:44:42,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-20 10:44:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:44:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:44:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 10:44:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-07-20 10:44:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:44:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:44:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-20 10:44:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 10:44:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-07-20 10:44:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:44:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-20 10:44:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:44:42,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:44:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:44:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-20 10:44:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:44:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:44:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:44:43,072 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:44:43,072 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 10:44:43,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:43 BoogieIcfgContainer [2020-07-20 10:44:43,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:44:43,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:44:43,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:44:43,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:44:43,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:44:42" (1/3) ... [2020-07-20 10:44:43,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d81c189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:43, skipping insertion in model container [2020-07-20 10:44:43,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:42" (2/3) ... [2020-07-20 10:44:43,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d81c189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:43, skipping insertion in model container [2020-07-20 10:44:43,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:43" (3/3) ... [2020-07-20 10:44:43,084 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-07-20 10:44:43,094 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:44:43,101 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:44:43,116 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:44:43,141 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:44:43,141 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:44:43,142 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:44:43,142 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:44:43,142 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:44:43,142 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:44:43,143 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:44:43,143 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:44:43,168 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-20 10:44:43,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-20 10:44:43,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:44:43,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:44:43,178 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:44:43,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:44:43,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1713573888, now seen corresponding path program 1 times [2020-07-20 10:44:43,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:44:43,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114372071] [2020-07-20 10:44:43,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:44:43,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:44:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:44:43,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:44:43,375 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:44:43,376 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:44:43,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:43,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:44:43 BoogieIcfgContainer [2020-07-20 10:44:43,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:44:43,625 INFO L168 Benchmark]: Toolchain (without parser) took 1260.97 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 98.8 MB in the beginning and 138.0 MB in the end (delta: -39.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:43,626 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 10:44:43,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.81 ms. Allocated memory is still 142.1 MB. Free memory was 98.4 MB in the beginning and 88.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:43,628 INFO L168 Benchmark]: Boogie Preprocessor took 136.32 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 88.2 MB in the beginning and 177.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:43,629 INFO L168 Benchmark]: RCFGBuilder took 322.30 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 159.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:43,630 INFO L168 Benchmark]: TraceAbstraction took 544.53 ms. Allocated memory is still 199.8 MB. Free memory was 159.3 MB in the beginning and 138.0 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:43,634 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.81 ms. Allocated memory is still 142.1 MB. Free memory was 98.4 MB in the beginning and 88.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.32 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 88.2 MB in the beginning and 177.6 MB in the end (delta: -89.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 322.30 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 159.9 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 544.53 ms. Allocated memory is still 199.8 MB. Free memory was 159.3 MB in the beginning and 138.0 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 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) VAL [\old(d)=6] [L8] double dmax; [L9] float f; [L11] EXPR \read(d) VAL [\old(d)=6, \read(d)=10, d={2439:0}, dmax={2440:0}, f={2441:0}] [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) VAL [\old(d)=6, \read(d)=6, \read(dmax)=2, d={2439:0}, dmax={2440:0}, f={2441:0}] [L16] COND FALSE !(d > dmax) [L19] EXPR \read(d) [L19] EXPR \read(dmax) VAL [\old(d)=6, \read(d)=6, \read(dmax)=2, d={2439:0}, dmax={2440:0}, f={2441:0}] [L19] COND FALSE !(-d > dmax) [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 [L23] EXPR \read(d) [L23] EXPR d >= -3.41e38 && d <= 3.41e38 VAL [\old(d)=6, \read(d)=6, \read(d)=6, d={2439:0}, dmax={2440:0}, f={2441:0}] [L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L3] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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=28occurred 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, 16 NumberOfCodeBlocks, 16 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...