/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/float-benchs/addsub_float_inexact.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:56:19,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:56:19,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:56:20,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:56:20,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:56:20,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:56:20,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:56:20,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:56:20,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:56:20,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:56:20,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:56:20,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:56:20,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:56:20,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:56:20,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:56:20,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:56:20,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:56:20,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:56:20,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:56:20,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:56:20,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:56:20,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:56:20,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:56:20,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:56:20,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:56:20,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 21:56:20,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 21:56:20,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 21:56:20,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 21:56:20,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 21:56:20,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 21:56:20,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 21:56:20,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 21:56:20,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:56:20,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:56:20,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:56:20,144 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 21:56:20,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:56:20,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:56:20,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:56:20,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:56:20,220 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:56:20,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:56:20,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:56:20,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:56:20,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:56:20,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:56:20,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:56:20,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:56:20,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:56:20,222 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:56:20,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:56:20,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:56:20,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:56:20,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:56:20,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:56:20,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:56:20,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:56:20,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:56:20,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:56:20,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:56:20,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:56:20,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:56:20,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:56:20,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:56:20,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:56:20,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:56:20,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:56:20,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:56:20,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:56:20,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:56:20,616 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:56:20,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_float_inexact.c [2020-11-06 21:56:20,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd229af3a/522cb5239bbf4a11b052a01e1238eb1e/FLAG73a50bbbb [2020-11-06 21:56:21,220 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:56:21,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_inexact.c [2020-11-06 21:56:21,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd229af3a/522cb5239bbf4a11b052a01e1238eb1e/FLAG73a50bbbb [2020-11-06 21:56:21,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd229af3a/522cb5239bbf4a11b052a01e1238eb1e [2020-11-06 21:56:21,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:56:21,607 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:56:21,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:56:21,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:56:21,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:56:21,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9a9cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21, skipping insertion in model container [2020-11-06 21:56:21,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:56:21,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:56:21,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:56:21,874 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:56:21,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:56:21,908 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:56:21,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21 WrapperNode [2020-11-06 21:56:21,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:56:21,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:56:21,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:56:21,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:56:21,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (1/1) ... [2020-11-06 21:56:21,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:56:21,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:56:21,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:56:21,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:56:21,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (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 21:56:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:56:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:56:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:56:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-06 21:56:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:56:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:56:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:56:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:56:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:56:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-06 21:56:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:56:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:56:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:56:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:56:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:56:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:56:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:56:22,442 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:56:22,442 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 21:56:22,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:22 BoogieIcfgContainer [2020-11-06 21:56:22,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:56:22,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:56:22,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:56:22,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:56:22,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:21" (1/3) ... [2020-11-06 21:56:22,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8452a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:22, skipping insertion in model container [2020-11-06 21:56:22,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:21" (2/3) ... [2020-11-06 21:56:22,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8452a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:22, skipping insertion in model container [2020-11-06 21:56:22,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:22" (3/3) ... [2020-11-06 21:56:22,453 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2020-11-06 21:56:22,488 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:56:22,494 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:56:22,512 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:56:22,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:56:22,554 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:56:22,555 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:56:22,555 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:56:22,555 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:56:22,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:56:22,555 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:56:22,555 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:56:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-06 21:56:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-06 21:56:22,588 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:56:22,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:56:22,589 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:56:22,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:56:22,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1930644943, now seen corresponding path program 1 times [2020-11-06 21:56:22,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:56:22,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566541881] [2020-11-06 21:56:22,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:56:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:56:22,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:56:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:56:22,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:56:22,824 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 21:56:22,825 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 21:56:22,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:56:22,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:56:22 BoogieIcfgContainer [2020-11-06 21:56:22,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:56:22,875 INFO L168 Benchmark]: Toolchain (without parser) took 1271.32 ms. Allocated memory is still 165.7 MB. Free memory was 123.0 MB in the beginning and 124.7 MB in the end (delta: -1.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:56:22,877 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:56:22,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.35 ms. Allocated memory is still 165.7 MB. Free memory was 122.3 MB in the beginning and 140.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:22,881 INFO L168 Benchmark]: Boogie Preprocessor took 34.22 ms. Allocated memory is still 165.7 MB. Free memory was 140.7 MB in the beginning and 139.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:22,884 INFO L168 Benchmark]: RCFGBuilder took 499.28 ms. Allocated memory is still 165.7 MB. Free memory was 139.3 MB in the beginning and 138.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:22,886 INFO L168 Benchmark]: TraceAbstraction took 425.45 ms. Allocated memory is still 165.7 MB. Free memory was 137.6 MB in the beginning and 124.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:22,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 298.35 ms. Allocated memory is still 165.7 MB. Free memory was 122.3 MB in the beginning and 140.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.22 ms. Allocated memory is still 165.7 MB. Free memory was 140.7 MB in the beginning and 139.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 499.28 ms. Allocated memory is still 165.7 MB. Free memory was 139.3 MB in the beginning and 138.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 425.45 ms. Allocated memory is still 165.7 MB. Free memory was 137.6 MB in the beginning and 124.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 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 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z VAL [x=100000000] [L16] CALL __VERIFIER_assert(r == 0.f) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] CALL reach_error() [L3] __assert_fail("0", "addsub_float_inexact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 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=22occurred 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, 11 NumberOfCodeBlocks, 11 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...