/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-newlib/double_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:55:27,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:55:27,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:55:28,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:55:28,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:55:28,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:55:28,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:55:28,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:55:28,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:55:28,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:55:28,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:55:28,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:55:28,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:55:28,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:55:28,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:55:28,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:55:28,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:55:28,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:55:28,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:55:28,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:55:28,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:55:28,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:55:28,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:55:28,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:55:28,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 17:55:28,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 17:55:28,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 17:55:28,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 17:55:28,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 17:55:28,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 17:55:28,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 17:55:28,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 17:55:28,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 17:55:28,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 17:55:28,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 17:55:28,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 17:55:28,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 17:55:28,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 17:55:28,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:55:28,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:55:28,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:55:28,107 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 [2020-10-23 17:55:28,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:55:28,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:55:28,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:55:28,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:55:28,135 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:55:28,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:55:28,136 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:55:28,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:55:28,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:55:28,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:55:28,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:55:28,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:55:28,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:55:28,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:55:28,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:55:28,137 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:55:28,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:55:28,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:55:28,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:55:28,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:55:28,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:55:28,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:55:28,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:55:28,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:55:28,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:55:28,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:55:28,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:55:28,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:55:28,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:55:28,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:55:28,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:55:28,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:55:28,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:55:28,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:55:28,605 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:55:28,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-10-23 17:55:28,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8355223cf/4c7042e6c1f049dbb44adf94563dd300/FLAG684d7af30 [2020-10-23 17:55:29,275 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:55:29,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-10-23 17:55:29,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8355223cf/4c7042e6c1f049dbb44adf94563dd300/FLAG684d7af30 [2020-10-23 17:55:29,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8355223cf/4c7042e6c1f049dbb44adf94563dd300 [2020-10-23 17:55:29,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:55:29,629 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:55:29,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:29,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:55:29,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:55:29,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:29" (1/1) ... [2020-10-23 17:55:29,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b84abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:29, skipping insertion in model container [2020-10-23 17:55:29,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:29" (1/1) ... [2020-10-23 17:55:29,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:55:29,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:55:29,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:29,975 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:55:30,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:30,017 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:55:30,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30 WrapperNode [2020-10-23 17:55:30,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:30,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:55:30,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:55:30,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:55:30,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (1/1) ... [2020-10-23 17:55:30,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (1/1) ... [2020-10-23 17:55:30,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (1/1) ... [2020-10-23 17:55:30,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (1/1) ... [2020-10-23 17:55:30,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (1/1) ... [2020-10-23 17:55:30,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (1/1) ... [2020-10-23 17:55:30,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (1/1) ... [2020-10-23 17:55:30,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:55:30,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:55:30,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:55:30,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:55:30,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (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 [2020-10-23 17:55:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:55:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:55:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:55:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-23 17:55:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-10-23 17:55:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-10-23 17:55:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:55:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:55:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:55:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:55:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:55:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 17:55:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-23 17:55:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-10-23 17:55:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 17:55:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:55:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:55:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-10-23 17:55:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:55:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:55:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:55:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:55:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 17:55:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:55:30,705 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:55:30,706 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 17:55:30,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:30 BoogieIcfgContainer [2020-10-23 17:55:30,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:55:30,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:55:30,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:55:30,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:55:30,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:55:29" (1/3) ... [2020-10-23 17:55:30,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fab1424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:30, skipping insertion in model container [2020-10-23 17:55:30,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:30" (2/3) ... [2020-10-23 17:55:30,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fab1424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:30, skipping insertion in model container [2020-10-23 17:55:30,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:30" (3/3) ... [2020-10-23 17:55:30,725 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-10-23 17:55:30,738 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:55:30,745 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 17:55:30,763 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 17:55:30,811 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:55:30,811 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:55:30,811 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:55:30,811 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:55:30,811 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:55:30,812 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:55:30,812 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:55:30,812 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:55:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-23 17:55:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 17:55:30,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:30,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 17:55:30,848 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:30,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:30,858 INFO L82 PathProgramCache]: Analyzing trace with hash -313398800, now seen corresponding path program 1 times [2020-10-23 17:55:30,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:30,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287985401] [2020-10-23 17:55:30,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:55:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:55:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:55:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 17:55:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:55:31,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287985401] [2020-10-23 17:55:31,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:55:31,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:55:31,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234528598] [2020-10-23 17:55:31,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:55:31,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:55:31,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:55:31,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:55:31,361 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-10-23 17:55:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:55:31,702 INFO L93 Difference]: Finished difference Result 76 states and 98 transitions. [2020-10-23 17:55:31,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:55:31,704 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-23 17:55:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:55:31,715 INFO L225 Difference]: With dead ends: 76 [2020-10-23 17:55:31,715 INFO L226 Difference]: Without dead ends: 37 [2020-10-23 17:55:31,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 17:55:31,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-23 17:55:31,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-23 17:55:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-23 17:55:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-10-23 17:55:31,772 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 27 [2020-10-23 17:55:31,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:55:31,773 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-23 17:55:31,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:55:31,773 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-10-23 17:55:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-23 17:55:31,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:31,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 17:55:31,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:55:31,776 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:31,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:31,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1555425548, now seen corresponding path program 1 times [2020-10-23 17:55:31,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:31,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999884689] [2020-10-23 17:55:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:55:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:55:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:55:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 17:55:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:31,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:55:31,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999884689] [2020-10-23 17:55:31,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:55:31,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:55:31,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252330416] [2020-10-23 17:55:32,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:55:32,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:55:32,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:55:32,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:55:32,002 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 6 states. [2020-10-23 17:55:32,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:55:32,183 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-10-23 17:55:32,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:55:32,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-23 17:55:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:55:32,187 INFO L225 Difference]: With dead ends: 53 [2020-10-23 17:55:32,187 INFO L226 Difference]: Without dead ends: 41 [2020-10-23 17:55:32,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 17:55:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-23 17:55:32,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-23 17:55:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-23 17:55:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-10-23 17:55:32,202 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 28 [2020-10-23 17:55:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:55:32,203 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-10-23 17:55:32,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:55:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-10-23 17:55:32,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-23 17:55:32,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:32,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 17:55:32,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:55:32,205 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:32,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:32,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1462218921, now seen corresponding path program 1 times [2020-10-23 17:55:32,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:32,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834563973] [2020-10-23 17:55:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:32,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:55:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:32,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:55:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:32,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:55:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:32,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 17:55:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:55:32,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834563973] [2020-10-23 17:55:32,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:55:32,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:55:32,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176737483] [2020-10-23 17:55:32,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:55:32,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:55:32,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:55:32,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:55:32,392 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 6 states. [2020-10-23 17:55:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:55:32,556 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2020-10-23 17:55:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:55:32,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-23 17:55:32,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:55:32,558 INFO L225 Difference]: With dead ends: 57 [2020-10-23 17:55:32,558 INFO L226 Difference]: Without dead ends: 45 [2020-10-23 17:55:32,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 17:55:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-23 17:55:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-23 17:55:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-23 17:55:32,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-10-23 17:55:32,570 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 31 [2020-10-23 17:55:32,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:55:32,570 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-10-23 17:55:32,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:55:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-10-23 17:55:32,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-23 17:55:32,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:32,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 17:55:32,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 17:55:32,573 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:32,573 INFO L82 PathProgramCache]: Analyzing trace with hash 951684744, now seen corresponding path program 1 times [2020-10-23 17:55:32,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:32,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424339030] [2020-10-23 17:55:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:32,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:32,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:32,669 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:55:32,669 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:55:32,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 17:55:32,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:55:32 BoogieIcfgContainer [2020-10-23 17:55:32,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:55:32,721 INFO L168 Benchmark]: Toolchain (without parser) took 3096.81 ms. Allocated memory is still 161.5 MB. Free memory was 136.4 MB in the beginning and 103.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:32,722 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 99.3 MB in the end (delta: 122.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:55:32,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.74 ms. Allocated memory is still 161.5 MB. Free memory was 135.8 MB in the beginning and 125.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:32,724 INFO L168 Benchmark]: Boogie Preprocessor took 44.63 ms. Allocated memory is still 161.5 MB. Free memory was 125.5 MB in the beginning and 123.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:32,725 INFO L168 Benchmark]: RCFGBuilder took 645.78 ms. Allocated memory is still 161.5 MB. Free memory was 123.8 MB in the beginning and 138.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:32,726 INFO L168 Benchmark]: TraceAbstraction took 2003.61 ms. Allocated memory is still 161.5 MB. Free memory was 138.0 MB in the beginning and 103.8 MB in the end (delta: 34.2 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:32,730 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 125.8 MB. Free memory was 99.5 MB in the beginning and 99.3 MB in the end (delta: 122.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 384.74 ms. Allocated memory is still 161.5 MB. Free memory was 135.8 MB in the beginning and 125.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.63 ms. Allocated memory is still 161.5 MB. Free memory was 125.5 MB in the beginning and 123.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 645.78 ms. Allocated memory is still 161.5 MB. Free memory was 123.8 MB in the beginning and 138.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2003.61 ms. Allocated memory is still 161.5 MB. Free memory was 138.0 MB in the beginning and 103.8 MB in the end (delta: 34.2 MB). Peak memory consumption was 35.6 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 someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 63. Possible FailurePath: [L63] double x = 0.0 / 0.0; [L64] double y = 0.0 / 0.0; [L65] CALL, EXPR fmin_double(x, y) VAL [\old(x)=4294967306, \old(y)=4294967307] [L47] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967306] [L20] __uint32_t msw, lsw; VAL [\old(x)=4294967306, x=4294967306] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L29-L30] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967306, lsw=4294967297, msw=4293918721, x=4294967306] [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967306, lsw=4294967297, msw=4293918721, x=4294967306] [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967306, lsw=4294967297, msw=4293918721, x=4294967306] [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L43] return 0; VAL [\old(x)=4294967306, \result=0, lsw=4294967297, msw=4293918721, x=4294967306] [L47] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967306, \old(y)=4294967307, __fpclassify_double(x)=0, x=4294967306, y=4294967307] [L47] COND TRUE __fpclassify_double(x) == 0 [L48] return y; VAL [\old(x)=4294967306, \old(y)=4294967307, \result=4294967307, x=4294967306, y=4294967307] [L65] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4294967307, x=4294967306, y=4294967307] [L65] double res = fmin_double(x, y); [L67] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967307] [L18] return x != x; VAL [\old(x)=4294967307, \result=0, x=4294967307] [L67] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4294967307, x=4294967306, y=4294967307] [L67] COND TRUE !isnan_double(res) [L68] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1230.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 126 SDtfs, 36 SDslu, 210 SDs, 0 SdLazy, 163 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 7243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...