/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:36:34,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:36:34,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:36:34,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:36:34,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:36:34,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:36:34,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:36:34,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:36:34,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:36:34,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:36:34,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:36:34,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:36:34,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:36:34,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:36:34,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:36:34,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:36:34,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:36:34,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:36:34,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:36:34,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:36:34,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:36:34,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:36:34,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:36:34,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:36:34,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:36:34,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:36:34,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:36:34,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:36:34,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:36:34,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:36:34,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:36:34,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:36:34,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:36:34,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:36:34,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:36:34,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:36:34,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:36:34,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:36:34,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:36:34,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:36:34,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:36:34,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:36:34,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:36:34,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:36:34,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:36:34,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:36:34,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:36:34,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:36:34,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:36:34,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:36:34,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:36:34,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:36:34,342 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:36:34,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:36:34,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:36:34,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:36:34,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:36:34,343 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:36:34,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:36:34,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:36:34,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:36:34,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:36:34,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:36:34,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:36:34,346 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-09-04 21:36:34,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:36:34,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:36:34,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:36:34,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:36:34,881 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:36:34,882 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-04 21:36:34,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab939547a/d47f089e010648159c91ef571d78da48/FLAG41c1ff6ce [2020-09-04 21:36:35,493 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:36:35,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-04 21:36:35,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab939547a/d47f089e010648159c91ef571d78da48/FLAG41c1ff6ce [2020-09-04 21:36:35,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab939547a/d47f089e010648159c91ef571d78da48 [2020-09-04 21:36:35,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:36:35,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:36:35,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:36:35,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:36:35,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:36:35,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:36:35" (1/1) ... [2020-09-04 21:36:35,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78523b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:35, skipping insertion in model container [2020-09-04 21:36:35,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:36:35" (1/1) ... [2020-09-04 21:36:35,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:36:35,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:36:36,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:36:36,153 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:36:36,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:36:36,208 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:36:36,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36 WrapperNode [2020-09-04 21:36:36,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:36:36,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:36:36,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:36:36,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:36:36,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:36,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:36,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:36,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:36,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:36,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:36,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:36,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:36:36,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:36:36,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:36:36,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:36:36,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 21:36:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:36:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:36:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-04 21:36:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-04 21:36:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-09-04 21:36:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:36:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:36:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-04 21:36:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-04 21:36:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-04 21:36:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 21:36:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 21:36:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 21:36:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 21:36:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-09-04 21:36:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:36:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:36:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:36:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 21:36:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 21:36:36,781 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:36:36,781 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 21:36:36,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:36:36 BoogieIcfgContainer [2020-09-04 21:36:36,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:36:36,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:36:36,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:36:36,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:36:36,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:36:35" (1/3) ... [2020-09-04 21:36:36,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:36:36, skipping insertion in model container [2020-09-04 21:36:36,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:36" (2/3) ... [2020-09-04 21:36:36,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:36:36, skipping insertion in model container [2020-09-04 21:36:36,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:36:36" (3/3) ... [2020-09-04 21:36:36,797 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-09-04 21:36:36,809 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:36:36,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:36:36,840 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:36:36,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:36:36,864 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:36:36,864 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:36:36,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:36:36,864 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:36:36,864 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:36:36,865 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:36:36,865 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:36:36,885 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-04 21:36:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-04 21:36:36,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:36,898 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] [2020-09-04 21:36:36,899 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:36,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:36,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1770687738, now seen corresponding path program 1 times [2020-09-04 21:36:36,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:36,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584574856] [2020-09-04 21:36:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:36:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 21:36:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 21:36:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 21:36:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 21:36:37,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584574856] [2020-09-04 21:36:37,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:36:37,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 21:36:37,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498994394] [2020-09-04 21:36:37,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 21:36:37,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:36:37,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 21:36:37,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 21:36:37,256 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-09-04 21:36:37,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:36:37,519 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-09-04 21:36:37,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 21:36:37,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-04 21:36:37,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:36:37,533 INFO L225 Difference]: With dead ends: 141 [2020-09-04 21:36:37,534 INFO L226 Difference]: Without dead ends: 74 [2020-09-04 21:36:37,539 INFO L675 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 [2020-09-04 21:36:37,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-04 21:36:37,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-04 21:36:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-04 21:36:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-09-04 21:36:37,598 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-09-04 21:36:37,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:36:37,598 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-09-04 21:36:37,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 21:36:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-09-04 21:36:37,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-04 21:36:37,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:37,603 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] [2020-09-04 21:36:37,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:36:37,604 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:37,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:37,605 INFO L82 PathProgramCache]: Analyzing trace with hash 524719120, now seen corresponding path program 1 times [2020-09-04 21:36:37,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:37,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529890434] [2020-09-04 21:36:37,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:36:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 21:36:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 21:36:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 21:36:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 21:36:37,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529890434] [2020-09-04 21:36:37,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:36:37,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 21:36:37,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536749506] [2020-09-04 21:36:37,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 21:36:37,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:36:37,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 21:36:37,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 21:36:37,879 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-09-04 21:36:38,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:36:38,113 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-09-04 21:36:38,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 21:36:38,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-04 21:36:38,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:36:38,118 INFO L225 Difference]: With dead ends: 88 [2020-09-04 21:36:38,118 INFO L226 Difference]: Without dead ends: 79 [2020-09-04 21:36:38,119 INFO L675 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 [2020-09-04 21:36:38,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-04 21:36:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-09-04 21:36:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-04 21:36:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-04 21:36:38,137 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-09-04 21:36:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:36:38,138 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-04 21:36:38,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 21:36:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-04 21:36:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 21:36:38,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:38,141 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] [2020-09-04 21:36:38,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 21:36:38,141 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:38,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:38,142 INFO L82 PathProgramCache]: Analyzing trace with hash 2023591653, now seen corresponding path program 1 times [2020-09-04 21:36:38,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:38,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753799523] [2020-09-04 21:36:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:36:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 21:36:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 21:36:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 21:36:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 21:36:38,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753799523] [2020-09-04 21:36:38,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:36:38,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 21:36:38,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759015972] [2020-09-04 21:36:38,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 21:36:38,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:36:38,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 21:36:38,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 21:36:38,368 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-09-04 21:36:38,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:36:38,560 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-09-04 21:36:38,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 21:36:38,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-09-04 21:36:38,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:36:38,563 INFO L225 Difference]: With dead ends: 92 [2020-09-04 21:36:38,563 INFO L226 Difference]: Without dead ends: 83 [2020-09-04 21:36:38,564 INFO L675 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 [2020-09-04 21:36:38,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-04 21:36:38,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-09-04 21:36:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-04 21:36:38,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-04 21:36:38,578 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-09-04 21:36:38,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:36:38,579 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-04 21:36:38,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 21:36:38,579 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-04 21:36:38,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 21:36:38,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:38,581 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] [2020-09-04 21:36:38,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 21:36:38,582 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:38,582 INFO L82 PathProgramCache]: Analyzing trace with hash 425668389, now seen corresponding path program 1 times [2020-09-04 21:36:38,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:38,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083187730] [2020-09-04 21:36:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:36:38,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:36:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:36:38,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:36:38,713 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:36:38,713 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:36:38,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 21:36:38,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:36:38 BoogieIcfgContainer [2020-09-04 21:36:38,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:36:38,796 INFO L168 Benchmark]: Toolchain (without parser) took 2947.07 ms. Allocated memory was 144.7 MB in the beginning and 235.9 MB in the end (delta: 91.2 MB). Free memory was 103.4 MB in the beginning and 114.6 MB in the end (delta: -11.2 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:38,798 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 144.7 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 21:36:38,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.74 ms. Allocated memory is still 144.7 MB. Free memory was 103.2 MB in the beginning and 92.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:38,801 INFO L168 Benchmark]: Boogie Preprocessor took 135.98 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 92.3 MB in the beginning and 180.1 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:38,802 INFO L168 Benchmark]: RCFGBuilder took 441.46 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 157.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:38,809 INFO L168 Benchmark]: TraceAbstraction took 2003.09 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 157.6 MB in the beginning and 114.6 MB in the end (delta: 43.0 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:38,817 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 144.7 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 360.74 ms. Allocated memory is still 144.7 MB. Free memory was 103.2 MB in the beginning and 92.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.98 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 92.3 MB in the beginning and 180.1 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.46 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 157.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2003.09 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 157.6 MB in the beginning and 114.6 MB in the end (delta: 43.0 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 77, overapproximation of someBinaryArithmeticDOUBLEoperation at line 65. Possible FailurePath: [L64] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=4294967301, x=4294967301] [L65] double y = 0.0 / 0.0; VAL [x=4294967301] [L72] CALL, EXPR isnan_double(x) VAL [\old(x)=4294967301] [L16] return x != x; VAL [\old(x)=4294967301, \result=0, x=4294967301] [L72] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4294967301] [L72] COND TRUE !isnan_double(x) VAL [isnan_double(x)=0, x=4294967301] [L74] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967301, \old(y)=4294967299] [L55] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301] [L27] __uint32_t msw, lsw; VAL [\old(x)=4294967301, x=4294967301] [L30] ieee_double_shape_type ew_u; VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L31] ew_u.value = (x) VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L32] EXPR ew_u.parts.msw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, x=4294967301] [L32] (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=4294967303, \old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967301] [L33] EXPR ew_u.parts.lsw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967301] [L33] (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=4294967302, \old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967301] [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L50] return 0; VAL [\old(x)=4294967301, \result=0, lsw=4294967297, msw=4293918721, x=4294967301] [L55] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301, \old(y)=4294967299, __fpclassify_double(x)=0, x=4294967301, y=4294967299] [L55] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967301, \old(y)=4294967299, __fpclassify_double(x)=0, x=4294967301, y=4294967299] [L56] return y; VAL [\old(x)=4294967301, \old(y)=4294967299, \result=4294967299, x=4294967301, y=4294967299] [L74] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967299, x=4294967301, y=4294967299] [L74] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4294967299, res=4294967299, x=4294967301, y=4294967299] [L77] COND TRUE res != x VAL [res=4294967299, x=4294967301, y=4294967299] [L78] __VERIFIER_error() VAL [res=4294967299, x=4294967301, y=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 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: 243 SDtfs, 97 SDslu, 395 SDs, 0 SdLazy, 325 SolverSat, 35 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 13222 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...