/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_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:03:24,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:03:24,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:03:24,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:03:24,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:03:24,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:03:24,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:03:24,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:03:24,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:03:24,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:03:24,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:03:24,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:03:24,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:03:24,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:03:24,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:03:24,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:03:24,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:03:24,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:03:24,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:03:24,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:03:24,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:03:24,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:03:24,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:03:24,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:03:24,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 17:03:24,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 17:03:24,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 17:03:24,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 17:03:24,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 17:03:24,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 17:03:24,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 17:03:24,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 17:03:24,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 17:03:24,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 17:03:24,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 17:03:24,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 17:03:24,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 17:03:24,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 17:03:24,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:03:24,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:03:24,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:03:24,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:03:24,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:03:24,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:03:24,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:03:24,214 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:03:24,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:03:24,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:03:24,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:03:24,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:03:24,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:03:24,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:03:24,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:03:24,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:03:24,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:03:24,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:03:24,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:03:24,220 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:03:24,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:03:24,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:03:24,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:03:24,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:03:24,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:03:24,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:03:24,222 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 [2020-07-17 17:03:24,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:03:24,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:03:24,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:03:24,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:03:24,528 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:03:24,529 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-07-17 17:03:24,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6857e61/93c2a89bd93a46b59eb8e0bd34a72259/FLAGdafaeb3ce [2020-07-17 17:03:24,973 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:03:24,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-07-17 17:03:24,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6857e61/93c2a89bd93a46b59eb8e0bd34a72259/FLAGdafaeb3ce [2020-07-17 17:03:25,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6857e61/93c2a89bd93a46b59eb8e0bd34a72259 [2020-07-17 17:03:25,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:03:25,345 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:03:25,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:03:25,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:03:25,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:03:25,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492525a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25, skipping insertion in model container [2020-07-17 17:03:25,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:03:25,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:03:25,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:03:25,641 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:03:25,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:03:25,847 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:03:25,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25 WrapperNode [2020-07-17 17:03:25,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:03:25,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:03:25,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:03:25,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:03:25,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (1/1) ... [2020-07-17 17:03:25,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:03:25,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:03:25,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:03:25,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:03:25,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (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 [2020-07-17 17:03:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:03:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:03:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-17 17:03:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-17 17:03:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:03:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:03:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-17 17:03:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-17 17:03:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 17:03:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 17:03:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 17:03:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 17:03:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 17:03:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 17:03:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-17 17:03:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:03:26,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:03:26,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-17 17:03:26,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:03:26,735 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:03:26,735 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-17 17:03:26,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:03:26 BoogieIcfgContainer [2020-07-17 17:03:26,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:03:26,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:03:26,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:03:26,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:03:26,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:03:25" (1/3) ... [2020-07-17 17:03:26,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d85080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:03:26, skipping insertion in model container [2020-07-17 17:03:26,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:03:25" (2/3) ... [2020-07-17 17:03:26,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d85080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:03:26, skipping insertion in model container [2020-07-17 17:03:26,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:03:26" (3/3) ... [2020-07-17 17:03:26,750 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-07-17 17:03:26,759 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:03:26,766 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:03:26,777 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:03:26,800 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:03:26,800 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:03:26,801 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:03:26,801 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:03:26,801 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:03:26,801 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:03:26,802 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:03:26,802 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:03:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-07-17 17:03:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 17:03:26,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:03:26,837 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] [2020-07-17 17:03:26,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:03:26,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:03:26,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1577177176, now seen corresponding path program 1 times [2020-07-17 17:03:26,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:03:26,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673635463] [2020-07-17 17:03:26,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:03:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:03:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:03:27,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673635463] [2020-07-17 17:03:27,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:03:27,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 17:03:27,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915819495] [2020-07-17 17:03:27,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 17:03:27,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:03:27,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 17:03:27,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 17:03:27,186 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-07-17 17:03:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:03:27,731 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-07-17 17:03:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 17:03:27,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-17 17:03:27,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:03:27,746 INFO L225 Difference]: With dead ends: 414 [2020-07-17 17:03:27,746 INFO L226 Difference]: Without dead ends: 209 [2020-07-17 17:03:27,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:03:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-07-17 17:03:27,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-07-17 17:03:27,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-07-17 17:03:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-07-17 17:03:27,819 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-07-17 17:03:27,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:03:27,820 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-07-17 17:03:27,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 17:03:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-07-17 17:03:27,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-17 17:03:27,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:03:27,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:03:27,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:03:27,827 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:03:27,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:03:27,827 INFO L82 PathProgramCache]: Analyzing trace with hash -16125544, now seen corresponding path program 1 times [2020-07-17 17:03:27,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:03:27,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120096069] [2020-07-17 17:03:27,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:03:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:03:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:03:28,132 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 17:03:28,132 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 17:03:28,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 17:03:28,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:03:28 BoogieIcfgContainer [2020-07-17 17:03:28,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:03:28,194 INFO L168 Benchmark]: Toolchain (without parser) took 2848.46 ms. Allocated memory was 141.6 MB in the beginning and 235.4 MB in the end (delta: 93.8 MB). Free memory was 102.9 MB in the beginning and 128.4 MB in the end (delta: -25.5 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:28,195 INFO L168 Benchmark]: CDTParser took 1.41 ms. Allocated memory is still 141.6 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 17:03:28,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.97 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 102.4 MB in the beginning and 179.3 MB in the end (delta: -76.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:28,200 INFO L168 Benchmark]: Boogie Preprocessor took 79.49 ms. Allocated memory is still 203.4 MB. Free memory was 179.3 MB in the beginning and 176.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:28,201 INFO L168 Benchmark]: RCFGBuilder took 812.83 ms. Allocated memory is still 203.4 MB. Free memory was 176.5 MB in the beginning and 129.0 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:28,204 INFO L168 Benchmark]: TraceAbstraction took 1447.84 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 128.3 MB in the beginning and 128.4 MB in the end (delta: -147.7 kB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-17 17:03:28,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41 ms. Allocated memory is still 141.6 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 501.97 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 102.4 MB in the beginning and 179.3 MB in the end (delta: -76.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.49 ms. Allocated memory is still 203.4 MB. Free memory was 179.3 MB in the beginning and 176.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 812.83 ms. Allocated memory is still 203.4 MB. Free memory was 176.5 MB in the beginning and 129.0 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1447.84 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 128.3 MB in the beginning and 128.4 MB in the end (delta: -147.7 kB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 41, overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 185, overapproximation of bitwiseXor at line 37. Possible FailurePath: [L15-L18] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372034706243604, \old(Zero_fmod)=9223372034706243592, \old(Zero_fmod)=9223372034706243601, one_fmod=1, Zero_fmod={3:0}] [L177] double y = -1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={3:0}] [L178] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372034706243598, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L180] CALL isfinite_double(x) VAL [\old(x)=9223372034706243598, one_fmod=1, Zero_fmod={3:0}] [L161] __int32_t hx; VAL [\old(x)=9223372034706243598, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L163] ieee_double_shape_type gh_u; VAL [\old(x)=9223372034706243598, gh_u={5:0}, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L164] gh_u.value = (x) VAL [\old(x)=9223372034706243598, gh_u={5:0}, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L165] EXPR gh_u.parts.msw VAL [\old(x)=9223372034706243598, gh_u={5:0}, gh_u.parts.msw=4294967296, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L165] (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=9223372034706243589, \old(x)=9223372034706243598, gh_u={5:0}, gh_u.parts.msw=4294967296, hx=0, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L167] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243598, \result=-2, hx=0, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L180] RET isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L180] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243598, Zero_fmod={3:0}] [L182] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, one_fmod=1, Zero_fmod={3:0}] [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L22] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L25] ieee_double_shape_type ew_u; VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={7:0}, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L26] ew_u.value = (x) VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={7:0}, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L27] EXPR ew_u.parts.msw VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={7:0}, ew_u.parts.msw=8589934591, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L27] (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=9223372034706243600, \old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={7:0}, ew_u.parts.msw=8589934591, hx=-1, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L28] EXPR ew_u.parts.lsw VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={7:0}, ew_u.parts.lsw=9223372034706243591, hx=-1, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L28] (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=9223372034706243597, \old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={7:0}, ew_u.parts.lsw=9223372034706243591, hx=-1, lx=9223372034706243591, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L31] ieee_double_shape_type ew_u; VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={2:0}, hx=-1, lx=9223372034706243591, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L32] ew_u.value = (y) VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={2:0}, hx=-1, lx=9223372034706243591, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L33] EXPR ew_u.parts.msw VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={2:0}, ew_u.parts.msw=8589934592, hx=-1, lx=9223372034706243591, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L33] (hy) = ew_u.parts.msw VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={2:0}, ew_u.parts.msw=8589934592, hx=-1, hy=0, lx=9223372034706243591, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L34] EXPR ew_u.parts.lsw VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={2:0}, ew_u.parts.lsw=9223372034706243605, hx=-1, hy=0, lx=9223372034706243591, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L34] (ly) = ew_u.parts.lsw VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, ew_u={2:0}, ew_u.parts.lsw=9223372034706243605, hx=-1, hy=0, lx=9223372034706243591, ly=9223372034706243605, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L36] sx = hx & 0x80000000 VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, hx=-1, hy=0, lx=9223372034706243591, ly=9223372034706243605, one_fmod=1, sx=9, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L37] hx ^= sx VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, hy=0, lx=9223372034706243591, ly=9223372034706243605, one_fmod=1, sx=9, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L38] hy &= 0x7fffffff VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, lx=9223372034706243591, ly=9223372034706243605, one_fmod=1, sx=9, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, hx=2146435072, lx=9223372034706243591, ly=9223372034706243605, one_fmod=1, sx=9, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L42] return (x * y) / (x * y); VAL [\old(x)=9223372034706243598, \old(y)=9223372034706243599, hx=2146435072, lx=9223372034706243591, ly=9223372034706243605, one_fmod=1, sx=9, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L182] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243595, one_fmod=1, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L182] double res = fmod_double(x, y); VAL [fmod_double(x, y)=9223372034706243595, one_fmod=1, res=9223372034706243595, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L185] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243595, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] [L186] __VERIFIER_error() VAL [one_fmod=1, res=9223372034706243595, x=9223372034706243598, y=9223372034706243599, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 216 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...