/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:25:01,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:25:01,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:25:01,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:25:01,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:25:01,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:25:01,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:25:01,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:25:01,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:25:01,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:25:01,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:25:01,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:25:01,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:25:01,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:25:01,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:25:01,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:25:01,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:25:01,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:25:01,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:25:01,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:25:01,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:25:01,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:25:01,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:25:01,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:25:01,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:25:01,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:25:01,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:25:01,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:25:01,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:25:01,616 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:25:01,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:25:01,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:25:01,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:25:01,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:25:01,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:25:01,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:25:01,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:25:01,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:25:01,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:25:01,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:25:01,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:25:01,621 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:25:01,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:25:01,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:25:01,622 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:25:01,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:25:01,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:25:01,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:25:01,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:25:01,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:25:01,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:25:01,624 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:25:02,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:25:02,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:25:02,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:25:02,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:25:02,091 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:25:02,092 INFO L432 ainManager$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 20:25:02,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92950c08b/3367b97063d440b7bf5c8e6270d64c9d/FLAG5f530ca43 [2020-10-23 20:25:02,819 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:25:02,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-10-23 20:25:02,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92950c08b/3367b97063d440b7bf5c8e6270d64c9d/FLAG5f530ca43 [2020-10-23 20:25:03,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92950c08b/3367b97063d440b7bf5c8e6270d64c9d [2020-10-23 20:25:03,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:25:03,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:25:03,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:03,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:25:03,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:25:03,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c19570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03, skipping insertion in model container [2020-10-23 20:25:03,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:25:03,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:25:03,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:03,443 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:25:03,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:03,490 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:25:03,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03 WrapperNode [2020-10-23 20:25:03,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:03,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:25:03,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:25:03,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:25:03,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (1/1) ... [2020-10-23 20:25:03,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:25:03,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:25:03,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:25:03,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:25:03,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (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 20:25:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:25:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:25:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:25:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-23 20:25:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-10-23 20:25:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-10-23 20:25:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:25:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:25:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:25:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:25:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:25:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 20:25:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-23 20:25:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-10-23 20:25:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 20:25:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:25:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:25:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-10-23 20:25:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:25:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:25:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:25:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:25:03,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:25:03,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 20:25:04,301 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:25:04,302 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 20:25:04,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:04 BoogieIcfgContainer [2020-10-23 20:25:04,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:25:04,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:25:04,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:25:04,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:25:04,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:25:03" (1/3) ... [2020-10-23 20:25:04,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155c9d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:04, skipping insertion in model container [2020-10-23 20:25:04,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:03" (2/3) ... [2020-10-23 20:25:04,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155c9d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:04, skipping insertion in model container [2020-10-23 20:25:04,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:04" (3/3) ... [2020-10-23 20:25:04,321 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-10-23 20:25:04,339 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:25:04,345 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:25:04,359 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:25:04,397 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:25:04,397 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:25:04,397 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:25:04,397 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:25:04,397 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:25:04,397 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:25:04,398 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:25:04,398 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:25:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-23 20:25:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-23 20:25:04,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:04,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:25:04,441 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:04,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:04,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1338507037, now seen corresponding path program 1 times [2020-10-23 20:25:04,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:04,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295220334] [2020-10-23 20:25:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:04,543 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:04,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:04,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:04,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 20:25:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:04,799 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 20:25:04,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295220334] [2020-10-23 20:25:04,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:04,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:25:04,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309818174] [2020-10-23 20:25:04,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:25:04,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:04,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:25:04,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:25:04,828 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-10-23 20:25:05,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:05,174 INFO L93 Difference]: Finished difference Result 153 states and 175 transitions. [2020-10-23 20:25:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:25:05,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-23 20:25:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:05,188 INFO L225 Difference]: With dead ends: 153 [2020-10-23 20:25:05,188 INFO L226 Difference]: Without dead ends: 78 [2020-10-23 20:25:05,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:25:05,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-23 20:25:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-23 20:25:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-23 20:25:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-10-23 20:25:05,303 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 44 [2020-10-23 20:25:05,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:05,305 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-10-23 20:25:05,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:25:05,305 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-10-23 20:25:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 20:25:05,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:05,311 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, 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 20:25:05,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:25:05,312 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:05,314 INFO L82 PathProgramCache]: Analyzing trace with hash 660798361, now seen corresponding path program 1 times [2020-10-23 20:25:05,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:05,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137970566] [2020-10-23 20:25:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:05,326 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:05,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:05,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:05,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:05,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-23 20:25:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:05,564 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 20:25:05,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137970566] [2020-10-23 20:25:05,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:05,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:25:05,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942045170] [2020-10-23 20:25:05,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:25:05,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:05,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:25:05,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:25:05,568 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 6 states. [2020-10-23 20:25:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:05,840 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2020-10-23 20:25:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:25:05,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-23 20:25:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:05,845 INFO L225 Difference]: With dead ends: 100 [2020-10-23 20:25:05,845 INFO L226 Difference]: Without dead ends: 83 [2020-10-23 20:25:05,847 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 20:25:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-23 20:25:05,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-10-23 20:25:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-23 20:25:05,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-10-23 20:25:05,874 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 58 [2020-10-23 20:25:05,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:05,875 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-10-23 20:25:05,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:25:05,875 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-10-23 20:25:05,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-23 20:25:05,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:05,878 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, 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 20:25:05,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:25:05,878 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:05,879 INFO L82 PathProgramCache]: Analyzing trace with hash -870996455, now seen corresponding path program 1 times [2020-10-23 20:25:05,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:05,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455490224] [2020-10-23 20:25:05,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:05,882 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:05,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:05,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-23 20:25:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:06,070 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 20:25:06,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455490224] [2020-10-23 20:25:06,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:06,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:25:06,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164293734] [2020-10-23 20:25:06,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:25:06,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:06,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:25:06,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:25:06,074 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2020-10-23 20:25:06,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:06,367 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2020-10-23 20:25:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:25:06,369 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-10-23 20:25:06,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:06,372 INFO L225 Difference]: With dead ends: 104 [2020-10-23 20:25:06,372 INFO L226 Difference]: Without dead ends: 87 [2020-10-23 20:25:06,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:25:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-23 20:25:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2020-10-23 20:25:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-23 20:25:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-10-23 20:25:06,393 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 61 [2020-10-23 20:25:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:06,393 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-10-23 20:25:06,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:25:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-10-23 20:25:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-23 20:25:06,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:06,395 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, 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 20:25:06,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:25:06,396 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:06,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:06,397 INFO L82 PathProgramCache]: Analyzing trace with hash -229439911, now seen corresponding path program 1 times [2020-10-23 20:25:06,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:06,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013720332] [2020-10-23 20:25:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:06,400 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:06,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:06,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:06,511 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:25:06,512 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:25:06,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:25:06,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:25:06 BoogieIcfgContainer [2020-10-23 20:25:06,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:25:06,541 INFO L168 Benchmark]: Toolchain (without parser) took 3328.45 ms. Allocated memory was 166.7 MB in the beginning and 211.8 MB in the end (delta: 45.1 MB). Free memory was 143.3 MB in the beginning and 177.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:06,542 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 166.7 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:06,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.61 ms. Allocated memory is still 166.7 MB. Free memory was 142.7 MB in the beginning and 132.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:06,546 INFO L168 Benchmark]: Boogie Preprocessor took 45.96 ms. Allocated memory is still 166.7 MB. Free memory was 132.5 MB in the beginning and 130.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:06,547 INFO L168 Benchmark]: RCFGBuilder took 766.51 ms. Allocated memory is still 166.7 MB. Free memory was 130.7 MB in the beginning and 143.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:06,549 INFO L168 Benchmark]: TraceAbstraction took 2226.96 ms. Allocated memory was 166.7 MB in the beginning and 211.8 MB in the end (delta: 45.1 MB). Free memory was 143.3 MB in the beginning and 177.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:06,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 166.7 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 273.61 ms. Allocated memory is still 166.7 MB. Free memory was 142.7 MB in the beginning and 132.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.96 ms. Allocated memory is still 166.7 MB. Free memory was 132.5 MB in the beginning and 130.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 766.51 ms. Allocated memory is still 166.7 MB. Free memory was 130.7 MB in the beginning and 143.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2226.96 ms. Allocated memory was 166.7 MB in the beginning and 211.8 MB in the end (delta: 45.1 MB). Free memory was 143.3 MB in the beginning and 177.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 10.1 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 64. Possible FailurePath: [L63] double x = 0.0 / 0.0; [L64] double y = 0.0 / 0.0; [L65] CALL, EXPR fmin_double(x, y) [L47] CALL, EXPR __fpclassify_double(x) [L20] __uint32_t msw, lsw; [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)) [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L43] return 0; [L47] RET, EXPR __fpclassify_double(x) [L47] COND TRUE __fpclassify_double(x) == 0 [L48] return y; [L65] RET, EXPR fmin_double(x, y) [L65] double res = fmin_double(x, y); [L67] CALL, EXPR isnan_double(res) [L18] return x != x; [L67] RET, EXPR isnan_double(res) [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, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 257 SDtfs, 71 SDslu, 433 SDs, 0 SdLazy, 344 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...