/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.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 03:18:41,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 03:18:41,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 03:18:41,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 03:18:41,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 03:18:41,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 03:18:41,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 03:18:41,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 03:18:41,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 03:18:41,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 03:18:41,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 03:18:41,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 03:18:41,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 03:18:41,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 03:18:41,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 03:18:41,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 03:18:41,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 03:18:41,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 03:18:41,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 03:18:41,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 03:18:41,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 03:18:41,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 03:18:41,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 03:18:41,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 03:18:41,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 03:18:41,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 03:18:41,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 03:18:41,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 03:18:41,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 03:18:41,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 03:18:41,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 03:18:41,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 03:18:41,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 03:18:41,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 03:18:41,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 03:18:41,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 03:18:41,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 03:18:41,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 03:18:41,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 03:18:41,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 03:18:41,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 03:18:41,808 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 03:18:41,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 03:18:41,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 03:18:41,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 03:18:41,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 03:18:41,830 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 03:18:41,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 03:18:41,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 03:18:41,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 03:18:41,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 03:18:41,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 03:18:41,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 03:18:41,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 03:18:41,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 03:18:41,833 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 03:18:41,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 03:18:41,834 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 03:18:41,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 03:18:41,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 03:18:41,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 03:18:41,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 03:18:41,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 03:18:41,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:18:41,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 03:18:41,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 03:18:41,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 03:18:41,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 03:18:41,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 03:18:41,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 03:18:41,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 03:18:41,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 03:18:42,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 03:18:42,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 03:18:42,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 03:18:42,136 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 03:18:42,136 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 03:18:42,137 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c [2020-07-20 03:18:42,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21208cdd1/dae6d0f605164fc79ce04186bfe0a466/FLAGdb4bbde9a [2020-07-20 03:18:42,694 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 03:18:42,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c [2020-07-20 03:18:42,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21208cdd1/dae6d0f605164fc79ce04186bfe0a466/FLAGdb4bbde9a [2020-07-20 03:18:43,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21208cdd1/dae6d0f605164fc79ce04186bfe0a466 [2020-07-20 03:18:43,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 03:18:43,125 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 03:18:43,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 03:18:43,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 03:18:43,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 03:18:43,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662bf42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43, skipping insertion in model container [2020-07-20 03:18:43,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 03:18:43,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 03:18:43,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:18:43,350 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 03:18:43,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:18:43,484 INFO L208 MainTranslator]: Completed translation [2020-07-20 03:18:43,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43 WrapperNode [2020-07-20 03:18:43,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 03:18:43,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 03:18:43,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 03:18:43,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 03:18:43,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (1/1) ... [2020-07-20 03:18:43,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 03:18:43,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 03:18:43,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 03:18:43,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 03:18:43,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (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 03:18:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 03:18:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 03:18:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 03:18:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-07-20 03:18:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 03:18:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 03:18:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 03:18:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 03:18:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-07-20 03:18:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 03:18:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 03:18:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 03:18:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-20 03:18:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 03:18:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 03:18:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 03:18:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 03:18:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-20 03:18:43,854 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 03:18:43,855 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 03:18:43,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:18:43 BoogieIcfgContainer [2020-07-20 03:18:43,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 03:18:43,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 03:18:43,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 03:18:43,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 03:18:43,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:18:43" (1/3) ... [2020-07-20 03:18:43,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711ce18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:18:43, skipping insertion in model container [2020-07-20 03:18:43,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:18:43" (2/3) ... [2020-07-20 03:18:43,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711ce18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:18:43, skipping insertion in model container [2020-07-20 03:18:43,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:18:43" (3/3) ... [2020-07-20 03:18:43,867 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2020-07-20 03:18:43,878 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 03:18:43,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 03:18:43,909 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 03:18:43,939 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 03:18:43,939 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 03:18:43,940 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 03:18:43,940 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 03:18:43,940 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 03:18:43,940 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 03:18:43,940 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 03:18:43,940 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 03:18:43,956 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-20 03:18:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-20 03:18:43,962 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:18:43,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 03:18:43,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:18:43,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:18:43,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1809195508, now seen corresponding path program 1 times [2020-07-20 03:18:43,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:18:43,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021205675] [2020-07-20 03:18:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f592d5d [2020-07-20 03:18:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 03:18:44,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 03:18:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 03:18:44,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 03:18:44,203 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 03:18:44,204 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 03:18:44,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 03:18:44,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:18:44 BoogieIcfgContainer [2020-07-20 03:18:44,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 03:18:44,236 INFO L168 Benchmark]: Toolchain (without parser) took 1110.87 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 101.6 MB in the beginning and 147.6 MB in the end (delta: -46.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-20 03:18:44,238 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 03:18:44,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.63 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 101.2 MB in the beginning and 180.6 MB in the end (delta: -79.4 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-07-20 03:18:44,241 INFO L168 Benchmark]: Boogie Preprocessor took 35.52 ms. Allocated memory is still 201.9 MB. Free memory was 180.6 MB in the beginning and 178.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-07-20 03:18:44,243 INFO L168 Benchmark]: RCFGBuilder took 337.77 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 163.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-07-20 03:18:44,243 INFO L168 Benchmark]: TraceAbstraction took 372.75 ms. Allocated memory is still 201.9 MB. Free memory was 163.2 MB in the beginning and 147.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-07-20 03:18:44,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 358.63 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 101.2 MB in the beginning and 180.6 MB in the end (delta: -79.4 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.52 ms. Allocated memory is still 201.9 MB. Free memory was 180.6 MB in the beginning and 178.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 337.77 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 163.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 372.75 ms. Allocated memory is still 201.9 MB. Free memory was 163.2 MB in the beginning and 147.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 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 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 21, overapproximation of bitwiseXor at line 20. Possible FailurePath: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L31] CALL, EXPR cast(a) VAL [\old(i)=0] [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; VAL [\old(i)=0, i=0] [L31] RET, EXPR cast(a) VAL [a=0, cast(a)=1127219206] [L31] r = cast(a) [L32] CALL __VERIFIER_assert(r == a) VAL [\old(cond)=0] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 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=23occurred 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, 15 NumberOfCodeBlocks, 15 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...