/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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:45:22,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:45:22,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:45:22,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:45:22,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:45:22,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:45:22,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:45:22,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:45:22,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:45:22,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:45:22,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:45:22,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:45:22,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:45:22,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:45:22,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:45:22,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:45:22,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:45:22,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:45:22,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:45:22,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:45:22,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:45:22,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:45:22,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:45:23,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:45:23,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:45:23,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:45:23,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:45:23,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:45:23,028 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 04:45:23,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:45:23,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:45:23,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:45:23,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:45:23,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:45:23,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:45:23,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:45:23,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:45:23,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:45:23,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:45:23,054 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:45:23,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:45:23,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:45:23,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:45:23,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:45:23,056 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:45:23,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:45:23,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:45:23,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:45:23,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:45:23,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:45:23,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:45:23,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:45:23,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:45:23,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:45:23,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:45:23,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:45:23,520 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:45:23,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-11-07 04:45:23,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc59eb014/802dddef0e3c462e8262190707415d47/FLAGb3df71318 [2020-11-07 04:45:24,315 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:45:24,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-11-07 04:45:24,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc59eb014/802dddef0e3c462e8262190707415d47/FLAGb3df71318 [2020-11-07 04:45:24,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc59eb014/802dddef0e3c462e8262190707415d47 [2020-11-07 04:45:24,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:45:24,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:45:24,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:24,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:45:24,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:45:24,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:24,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ace8f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24, skipping insertion in model container [2020-11-07 04:45:24,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:24,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:45:24,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:45:24,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:24,891 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:45:24,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:24,968 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:45:24,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24 WrapperNode [2020-11-07 04:45:24,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:24,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:45:24,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:45:24,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:45:24,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:24,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:24,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:24,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:25,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:25,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:25,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (1/1) ... [2020-11-07 04:45:25,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:45:25,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:45:25,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:45:25,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:45:25,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (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 04:45:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:45:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:45:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:45:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 04:45:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-11-07 04:45:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-11-07 04:45:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:45:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:45:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:45:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:45:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:45:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 04:45:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 04:45:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-11-07 04:45:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 04:45:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:45:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:45:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 04:45:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:45:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-11-07 04:45:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:45:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:45:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:45:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-07 04:45:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:45:26,246 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:45:26,246 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-07 04:45:26,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:26 BoogieIcfgContainer [2020-11-07 04:45:26,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:45:26,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:45:26,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:45:26,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:45:26,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:45:24" (1/3) ... [2020-11-07 04:45:26,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da24bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:26, skipping insertion in model container [2020-11-07 04:45:26,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:24" (2/3) ... [2020-11-07 04:45:26,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da24bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:26, skipping insertion in model container [2020-11-07 04:45:26,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:26" (3/3) ... [2020-11-07 04:45:26,257 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-11-07 04:45:26,271 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:45:26,275 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:45:26,288 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:45:26,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:45:26,314 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:45:26,314 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:45:26,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:45:26,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:45:26,315 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:45:26,315 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:45:26,315 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:45:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-11-07 04:45:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-07 04:45:26,351 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:26,352 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] [2020-11-07 04:45:26,353 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:26,359 INFO L82 PathProgramCache]: Analyzing trace with hash 738853164, now seen corresponding path program 1 times [2020-11-07 04:45:26,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:26,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102552792] [2020-11-07 04:45:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:26,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:26,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:45:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:26,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 04:45:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:26,702 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 04:45:26,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102552792] [2020-11-07 04:45:26,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:26,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:45:26,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781642820] [2020-11-07 04:45:26,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:45:26,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:26,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:45:26,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:45:26,730 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 4 states. [2020-11-07 04:45:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:27,463 INFO L93 Difference]: Finished difference Result 423 states and 513 transitions. [2020-11-07 04:45:27,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 04:45:27,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-11-07 04:45:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:27,478 INFO L225 Difference]: With dead ends: 423 [2020-11-07 04:45:27,478 INFO L226 Difference]: Without dead ends: 215 [2020-11-07 04:45:27,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 04:45:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-11-07 04:45:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-11-07 04:45:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-11-07 04:45:27,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 241 transitions. [2020-11-07 04:45:27,554 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 241 transitions. Word has length 57 [2020-11-07 04:45:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:27,555 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 241 transitions. [2020-11-07 04:45:27,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:45:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 241 transitions. [2020-11-07 04:45:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-11-07 04:45:27,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:27,560 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, 1, 1, 1, 1, 1, 1] [2020-11-07 04:45:27,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:45:27,560 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:27,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:27,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1422621394, now seen corresponding path program 1 times [2020-11-07 04:45:27,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:27,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460148684] [2020-11-07 04:45:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:27,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:27,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:27,931 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:45:27,932 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:45:27,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:45:28,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:45:28 BoogieIcfgContainer [2020-11-07 04:45:28,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:45:28,034 INFO L168 Benchmark]: Toolchain (without parser) took 3413.68 ms. Allocated memory was 170.9 MB in the beginning and 211.8 MB in the end (delta: 40.9 MB). Free memory was 146.3 MB in the beginning and 123.4 MB in the end (delta: 22.9 MB). Peak memory consumption was 64.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:28,034 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:45:28,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.60 ms. Allocated memory is still 170.9 MB. Free memory was 145.6 MB in the beginning and 131.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:28,036 INFO L168 Benchmark]: Boogie Preprocessor took 67.89 ms. Allocated memory is still 170.9 MB. Free memory was 131.9 MB in the beginning and 129.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:28,037 INFO L168 Benchmark]: RCFGBuilder took 1209.98 ms. Allocated memory is still 170.9 MB. Free memory was 129.4 MB in the beginning and 151.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:28,038 INFO L168 Benchmark]: TraceAbstraction took 1781.12 ms. Allocated memory was 170.9 MB in the beginning and 211.8 MB in the end (delta: 40.9 MB). Free memory was 150.8 MB in the beginning and 123.4 MB in the end (delta: 27.4 MB). Peak memory consumption was 68.3 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:28,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 343.60 ms. Allocated memory is still 170.9 MB. Free memory was 145.6 MB in the beginning and 131.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.89 ms. Allocated memory is still 170.9 MB. Free memory was 131.9 MB in the beginning and 129.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1209.98 ms. Allocated memory is still 170.9 MB. Free memory was 129.4 MB in the beginning and 151.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1781.12 ms. Allocated memory was 170.9 MB in the beginning and 211.8 MB in the end (delta: 40.9 MB). Free memory was 150.8 MB in the beginning and 123.4 MB in the end (delta: 27.4 MB). Peak memory consumption was 68.3 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 bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372032558759962, \old(Zero_fmod)=9223372032558759953, \old(Zero_fmod)=9223372032558759960, one_fmod=1, Zero_fmod={9:0}] [L182] double y = 1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={9:0}] [L183] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372032558759954, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L185] CALL isfinite_double(x) VAL [\old(x)=9223372032558759954, one_fmod=1, Zero_fmod={9:0}] [L166] __int32_t hx; VAL [\old(x)=9223372032558759954, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L168] ieee_double_shape_type gh_u; VAL [\old(x)=9223372032558759954, gh_u={10:0}, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L169] gh_u.value = (x) VAL [\old(x)=9223372032558759954, gh_u={10:0}, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L170] EXPR gh_u.parts.msw VAL [\old(x)=9223372032558759954, gh_u={10:0}, gh_u.parts.msw=4294967294, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L170] (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=9223372032558759951, \old(x)=9223372032558759954, gh_u={10:0}, gh_u.parts.msw=4294967294, hx=-2, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372032558759954, \result=11, hx=-2, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L185] RET isfinite_double(x) VAL [isfinite_double(x)=11, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L185] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=11, one_fmod=1, x=9223372032558759954, Zero_fmod={9:0}] [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, Zero_fmod={9:0}] [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L27] __uint32_t lx, ly, lz; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L31] ew_u.value = (x) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L32] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.msw=0, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L32] (hx) = ew_u.parts.msw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.msw=0, hx=0, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L33] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.lsw=9223372032558759944, hx=0, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L33] (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=9223372032558759956, \old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={13:0}, ew_u.parts.lsw=9223372032558759944, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L36] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L37] ew_u.value = (y) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L38] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.msw=0, hx=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L38] (hy) = ew_u.parts.msw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.msw=0, hx=0, hy=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L39] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.lsw=9223372032558759952, hx=0, hy=0, lx=9223372032558759944, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L39] (ly) = ew_u.parts.lsw VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, ew_u={3:0}, ew_u.parts.lsw=9223372032558759952, hx=0, hy=0, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L41] sx = hx & 0x80000000 VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hx=0, hy=0, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L42] hx ^= sx VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hy=0, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L43] hy &= 0x7fffffff VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hx=2146435072, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L47] return (x * y) / (x * y); VAL [\old(x)=9223372032558759954, \old(y)=9223372032558759945, hx=2146435072, lx=9223372032558759944, ly=9223372032558759952, one_fmod=1, sx=-1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372032558759959, one_fmod=1, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L187] double res = fmod_double(x, y); VAL [fmod_double(x, y)=9223372032558759959, one_fmod=1, res=9223372032558759959, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L190] COND TRUE res != x VAL [one_fmod=1, res=9223372032558759959, x=9223372032558759954, y=9223372032558759945, Zero_fmod={9:0}] [L191] CALL reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] [L3] __assert_fail("0", "double_req_bl_1131a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 39 SDslu, 181 SDs, 0 SdLazy, 269 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred 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, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 6664 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...