/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:56:03,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:56:03,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:56:03,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:56:03,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:56:03,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:56:03,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:56:03,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:56:03,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:56:03,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:56:03,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:56:03,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:56:03,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:56:03,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:56:04,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:56:04,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:56:04,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:56:04,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:56:04,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:56:04,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:56:04,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:56:04,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:56:04,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:56:04,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:56:04,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:56:04,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 21:56:04,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 21:56:04,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 21:56:04,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 21:56:04,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 21:56:04,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 21:56:04,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 21:56:04,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 21:56:04,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:56:04,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:56:04,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:56:04,053 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 [2020-11-06 21:56:04,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:56:04,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:56:04,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:56:04,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:56:04,115 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:56:04,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:56:04,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:56:04,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:56:04,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:56:04,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:56:04,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:56:04,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:56:04,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:56:04,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:56:04,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:56:04,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:56:04,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:56:04,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:56:04,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:56:04,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:56:04,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:56:04,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:56:04,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:56:04,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:56:04,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:56:04,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:56:04,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:56:04,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:56:04,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:56:04,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:56:04,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:56:04,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:56:04,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:56:04,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:56:04,532 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:56:04,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c [2020-11-06 21:56:04,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad8d2b96/0db6298e5c4148b9a009346145c9bd9e/FLAGe590351ab [2020-11-06 21:56:05,203 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:56:05,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float13.c [2020-11-06 21:56:05,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad8d2b96/0db6298e5c4148b9a009346145c9bd9e/FLAGe590351ab [2020-11-06 21:56:05,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad8d2b96/0db6298e5c4148b9a009346145c9bd9e [2020-11-06 21:56:05,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:56:05,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:56:05,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:56:05,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:56:05,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:56:05,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202be845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05, skipping insertion in model container [2020-11-06 21:56:05,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:56:05,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:56:05,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:56:05,795 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:56:05,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:56:05,833 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:56:05,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05 WrapperNode [2020-11-06 21:56:05,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:56:05,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:56:05,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:56:05,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:56:05,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (1/1) ... [2020-11-06 21:56:05,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:56:05,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:56:05,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:56:05,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:56:05,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (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 [2020-11-06 21:56:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:56:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:56:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:56:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:56:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:56:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:56:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:56:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:56:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:56:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:56:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:56:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:56:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:56:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:56:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:56:06,349 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:56:06,350 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 21:56:06,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:06 BoogieIcfgContainer [2020-11-06 21:56:06,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:56:06,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:56:06,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:56:06,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:56:06,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:05" (1/3) ... [2020-11-06 21:56:06,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e9c020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:06, skipping insertion in model container [2020-11-06 21:56:06,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:05" (2/3) ... [2020-11-06 21:56:06,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e9c020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:06, skipping insertion in model container [2020-11-06 21:56:06,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:06" (3/3) ... [2020-11-06 21:56:06,363 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-11-06 21:56:06,380 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:56:06,383 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:56:06,396 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:56:06,432 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:56:06,432 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:56:06,433 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:56:06,433 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:56:06,433 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:56:06,433 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:56:06,433 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:56:06,433 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:56:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-11-06 21:56:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-06 21:56:06,468 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:56:06,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:56:06,469 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:56:06,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:56:06,486 INFO L82 PathProgramCache]: Analyzing trace with hash 263666592, now seen corresponding path program 1 times [2020-11-06 21:56:06,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:56:06,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584063098] [2020-11-06 21:56:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:56:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:56:06,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:56:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:56:06,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:56:06,744 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 21:56:06,744 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 21:56:06,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:56:06,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:56:06 BoogieIcfgContainer [2020-11-06 21:56:06,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:56:06,776 INFO L168 Benchmark]: Toolchain (without parser) took 1200.02 ms. Allocated memory is still 155.2 MB. Free memory was 130.0 MB in the beginning and 121.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:06,777 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:56:06,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.94 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 119.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:06,782 INFO L168 Benchmark]: Boogie Preprocessor took 40.04 ms. Allocated memory is still 155.2 MB. Free memory was 119.9 MB in the beginning and 118.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:06,783 INFO L168 Benchmark]: RCFGBuilder took 476.27 ms. Allocated memory is still 155.2 MB. Free memory was 118.3 MB in the beginning and 136.7 MB in the end (delta: -18.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:06,784 INFO L168 Benchmark]: TraceAbstraction took 419.17 ms. Allocated memory is still 155.2 MB. Free memory was 136.2 MB in the beginning and 121.9 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:06,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 128.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 244.94 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 119.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.04 ms. Allocated memory is still 155.2 MB. Free memory was 119.9 MB in the beginning and 118.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 476.27 ms. Allocated memory is still 155.2 MB. Free memory was 118.3 MB in the beginning and 136.7 MB in the end (delta: -18.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 419.17 ms. Allocated memory is still 155.2 MB. Free memory was 136.2 MB in the beginning and 121.9 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 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 someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); VAL [\old(minus_infinity)=57, \old(NaN)=52, \old(plus_infinity)=54] [L11] _Bool temp; [L14] temp = NaN < plus_infinity VAL [temp=1] [L15] COND TRUE !(!temp) VAL [temp=1] [L15] CALL reach_error() [L3] __assert_fail("0", "float13.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=46occurred 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, 9 NumberOfCodeBlocks, 9 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...