/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:45:30,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:45:30,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:45:30,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:45:30,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:45:30,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:45:30,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:45:30,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:45:30,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:45:30,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:45:30,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:45:30,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:45:30,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:45:30,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:45:30,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:45:30,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:45:30,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:45:30,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:45:30,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:45:30,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:45:30,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:45:30,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:45:30,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:45:30,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:45:30,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:45:30,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:45:30,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:45:30,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:45:30,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:45:30,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:45:30,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:45:30,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:45:30,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:45:30,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:45:30,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:45:30,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:45:30,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:45:30,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:45:30,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:45:30,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:45:30,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:45:30,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:45:30,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:45:30,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:45:30,838 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:45:30,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:45:30,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:45:30,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:45:30,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:45:30,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:45:30,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:45:30,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:45:31,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:45:31,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:45:31,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:45:31,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:45:31,229 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:45:31,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-11-07 04:45:31,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc75b5bb/b1da64d1b5cc48099741af0ce91df0aa/FLAG2c96dfbed [2020-11-07 04:45:31,905 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:45:31,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-11-07 04:45:31,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc75b5bb/b1da64d1b5cc48099741af0ce91df0aa/FLAG2c96dfbed [2020-11-07 04:45:32,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc75b5bb/b1da64d1b5cc48099741af0ce91df0aa [2020-11-07 04:45:32,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:45:32,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:45:32,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:32,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:45:32,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:45:32,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c30356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32, skipping insertion in model container [2020-11-07 04:45:32,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:45:32,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:45:32,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:32,487 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:45:32,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:32,534 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:45:32,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32 WrapperNode [2020-11-07 04:45:32,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:32,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:45:32,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:45:32,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:45:32,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (1/1) ... [2020-11-07 04:45:32,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:45:32,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:45:32,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:45:32,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:45:32,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (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 [2020-11-07 04:45:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:45:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:45:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:45:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 04:45:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-07 04:45:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-11-07 04:45:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:45:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:45:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:45:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:45:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:45:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 04:45:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 04:45:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-07 04:45:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 04:45:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:45:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:45:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-11-07 04:45:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:45:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:45:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:45:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:45:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:45:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 04:45:33,301 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:45:33,302 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 04:45:33,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:33 BoogieIcfgContainer [2020-11-07 04:45:33,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:45:33,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:45:33,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:45:33,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:45:33,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:45:32" (1/3) ... [2020-11-07 04:45:33,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65332478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:33, skipping insertion in model container [2020-11-07 04:45:33,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:32" (2/3) ... [2020-11-07 04:45:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65332478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:33, skipping insertion in model container [2020-11-07 04:45:33,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:33" (3/3) ... [2020-11-07 04:45:33,312 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-11-07 04:45:33,328 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:45:33,332 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:45:33,346 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:45:33,370 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:45:33,371 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:45:33,371 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:45:33,371 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:45:33,371 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:45:33,371 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:45:33,371 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:45:33,372 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:45:33,389 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-11-07 04:45:33,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-07 04:45:33,402 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:33,403 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] [2020-11-07 04:45:33,403 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:33,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1338507037, now seen corresponding path program 1 times [2020-11-07 04:45:33,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:33,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279124918] [2020-11-07 04:45:33,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:33,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:33,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:45:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:33,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:33,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-11-07 04:45:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:33,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:33,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279124918] [2020-11-07 04:45:33,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:33,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:45:33,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904575349] [2020-11-07 04:45:33,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:45:33,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:33,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:45:33,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:45:33,817 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-11-07 04:45:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:34,211 INFO L93 Difference]: Finished difference Result 153 states and 175 transitions. [2020-11-07 04:45:34,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 04:45:34,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-11-07 04:45:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:34,224 INFO L225 Difference]: With dead ends: 153 [2020-11-07 04:45:34,224 INFO L226 Difference]: Without dead ends: 78 [2020-11-07 04:45:34,229 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 [2020-11-07 04:45:34,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-07 04:45:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-07 04:45:34,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-07 04:45:34,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-11-07 04:45:34,289 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 44 [2020-11-07 04:45:34,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:34,290 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-11-07 04:45:34,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:45:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-11-07 04:45:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-07 04:45:34,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:34,294 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] [2020-11-07 04:45:34,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:45:34,295 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:34,296 INFO L82 PathProgramCache]: Analyzing trace with hash 660798361, now seen corresponding path program 1 times [2020-11-07 04:45:34,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:34,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138420584] [2020-11-07 04:45:34,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:34,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:34,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:45:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:34,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:34,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-11-07 04:45:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:34,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138420584] [2020-11-07 04:45:34,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:34,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:45:34,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523425272] [2020-11-07 04:45:34,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:45:34,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:34,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:45:34,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:45:34,617 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 6 states. [2020-11-07 04:45:34,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:34,977 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2020-11-07 04:45:34,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:45:34,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-11-07 04:45:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:34,984 INFO L225 Difference]: With dead ends: 100 [2020-11-07 04:45:34,986 INFO L226 Difference]: Without dead ends: 83 [2020-11-07 04:45:34,987 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 [2020-11-07 04:45:34,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-07 04:45:35,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-11-07 04:45:35,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-07 04:45:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-11-07 04:45:35,027 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 58 [2020-11-07 04:45:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:35,029 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-11-07 04:45:35,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:45:35,029 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-11-07 04:45:35,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-07 04:45:35,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:35,033 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] [2020-11-07 04:45:35,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:45:35,033 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:35,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:35,036 INFO L82 PathProgramCache]: Analyzing trace with hash -870996455, now seen corresponding path program 1 times [2020-11-07 04:45:35,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:35,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856755370] [2020-11-07 04:45:35,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:35,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:35,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:45:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:35,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:45:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:35,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856755370] [2020-11-07 04:45:35,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:35,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:45:35,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962632912] [2020-11-07 04:45:35,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:45:35,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:35,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:45:35,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:45:35,241 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2020-11-07 04:45:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:35,466 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2020-11-07 04:45:35,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:45:35,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-11-07 04:45:35,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:35,469 INFO L225 Difference]: With dead ends: 104 [2020-11-07 04:45:35,469 INFO L226 Difference]: Without dead ends: 87 [2020-11-07 04:45:35,470 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 [2020-11-07 04:45:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-07 04:45:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2020-11-07 04:45:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-07 04:45:35,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-11-07 04:45:35,482 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 61 [2020-11-07 04:45:35,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:35,483 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-11-07 04:45:35,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:45:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-11-07 04:45:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-07 04:45:35,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:35,485 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] [2020-11-07 04:45:35,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:45:35,485 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:35,486 INFO L82 PathProgramCache]: Analyzing trace with hash -229439911, now seen corresponding path program 1 times [2020-11-07 04:45:35,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:35,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954087717] [2020-11-07 04:45:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:35,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:35,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:35,612 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:45:35,612 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:45:35,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:45:35,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:45:35 BoogieIcfgContainer [2020-11-07 04:45:35,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:45:35,720 INFO L168 Benchmark]: Toolchain (without parser) took 3480.54 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 128.1 MB in the beginning and 170.8 MB in the end (delta: -42.7 MB). Peak memory consumption was 104.3 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:35,721 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:45:35,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.85 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 116.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:35,723 INFO L168 Benchmark]: Boogie Preprocessor took 44.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 115.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:35,725 INFO L168 Benchmark]: RCFGBuilder took 723.08 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 129.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:35,728 INFO L168 Benchmark]: TraceAbstraction took 2410.01 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 129.0 MB in the beginning and 170.8 MB in the end (delta: -41.7 MB). Peak memory consumption was 104.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:35,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 291.85 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 116.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 115.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 723.08 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 129.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2410.01 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 129.0 MB in the beginning and 170.8 MB in the end (delta: -41.7 MB). Peak memory consumption was 104.6 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 64. 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)=4294967311, \old(y)=4294967310] [L47] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967311] [L20] __uint32_t msw, lsw; VAL [\old(x)=4294967311, x=4294967311] [L23] ieee_double_shape_type ew_u; VAL [\old(x)=4294967311, ew_u={3:0}, x=4294967311] [L24] ew_u.value = (x) VAL [\old(x)=4294967311, ew_u={3:0}, x=4294967311] [L25] EXPR ew_u.parts.msw VAL [\old(x)=4294967311, ew_u={3:0}, ew_u.parts.msw=4293918721, x=4294967311] [L25] (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=4294967307, \old(x)=4294967311, ew_u={3:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967311] [L26] EXPR ew_u.parts.lsw VAL [\old(x)=4294967311, ew_u={3:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967311] [L26] (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=4294967301, \old(x)=4294967311, ew_u={3:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967311] [L29-L30] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967311, lsw=4294967297, msw=4293918721, x=4294967311] [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967311, lsw=4294967297, msw=4293918721, x=4294967311] [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967311, lsw=4294967297, msw=4293918721, x=4294967311] [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967311, lsw=4294967297, msw=4293918721, x=4294967311] [L43] return 0; VAL [\old(x)=4294967311, \result=0, lsw=4294967297, msw=4293918721, x=4294967311] [L47] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967311, \old(y)=4294967310, __fpclassify_double(x)=0, x=4294967311, y=4294967310] [L47] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967311, \old(y)=4294967310, __fpclassify_double(x)=0, x=4294967311, y=4294967310] [L48] return y; VAL [\old(x)=4294967311, \old(y)=4294967310, \result=4294967310, x=4294967311, y=4294967310] [L65] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4294967310, x=4294967311, y=4294967310] [L65] double res = fmin_double(x, y); VAL [fmin_double(x, y)=4294967310, res=4294967310, x=4294967311, y=4294967310] [L67] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967310] [L18] return x != x; VAL [\old(x)=4294967310, \result=0, x=4294967310] [L67] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4294967310, x=4294967311, y=4294967310] [L67] COND TRUE !isnan_double(res) VAL [isnan_double(res)=0, res=4294967310, x=4294967311, y=4294967310] [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: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, 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, 0.4s 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 18274 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...