/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:55:26,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:55:26,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:55:26,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 17:55:26,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:55:26,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:55:26,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:55:26,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:55:26,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:55:26,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:55:26,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:55:26,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:55:26,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:55:26,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:55:26,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:55:26,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:55:26,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 17:55:26,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:55:26,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:55:26,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:55:26,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 17:55:26,251 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:55:26,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:55:26,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:55:26,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:55:26,254 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:55:26,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:55:26,255 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:55:26,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:55:26,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:55:26,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:55:26,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:55:26,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:55:26,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:55:26,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:55:26,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:55:26,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:55:26,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:55:26,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:55:26,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:55:26,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:55:26,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:55:26,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:55:26,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:55:26,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:55:26,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:55:26,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:55:26,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:55:26,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:55:26,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:55:26,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:55:26,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:55:26,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:55:26,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:55:26,717 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:55:26,717 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:55:26,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-23 17:55:26,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd45728e5/bbfc035cd83243cb88f8865bef125c01/FLAGad32b8c3a [2020-10-23 17:55:27,438 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:55:27,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-23 17:55:27,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd45728e5/bbfc035cd83243cb88f8865bef125c01/FLAGad32b8c3a [2020-10-23 17:55:27,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd45728e5/bbfc035cd83243cb88f8865bef125c01 [2020-10-23 17:55:27,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:55:27,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:55:27,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:27,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:55:27,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:55:27,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab29f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27, skipping insertion in model container [2020-10-23 17:55:27,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:55:27,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:55:28,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:28,228 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:55:28,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:28,299 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:55:28,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28 WrapperNode [2020-10-23 17:55:28,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:28,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:55:28,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:55:28,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:55:28,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... [2020-10-23 17:55:28,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... [2020-10-23 17:55:28,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... [2020-10-23 17:55:28,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... [2020-10-23 17:55:28,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... [2020-10-23 17:55:28,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... [2020-10-23 17:55:28,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... [2020-10-23 17:55:28,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:55:28,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:55:28,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:55:28,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:55:28,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:55:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:55:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:55:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:55:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-23 17:55:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-23 17:55:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:55:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:55:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:55:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:55:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:55:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 17:55:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-23 17:55:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 17:55:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:55:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:55:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 17:55:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:55:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-23 17:55:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:55:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:55:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:55:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-23 17:55:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:55:29,244 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:55:29,245 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-23 17:55:29,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:29 BoogieIcfgContainer [2020-10-23 17:55:29,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:55:29,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:55:29,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:55:29,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:55:29,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:55:27" (1/3) ... [2020-10-23 17:55:29,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf89d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:29, skipping insertion in model container [2020-10-23 17:55:29,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:28" (2/3) ... [2020-10-23 17:55:29,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf89d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:29, skipping insertion in model container [2020-10-23 17:55:29,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:29" (3/3) ... [2020-10-23 17:55:29,255 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-10-23 17:55:29,267 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:55:29,272 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 17:55:29,285 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 17:55:29,311 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:55:29,312 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:55:29,312 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:55:29,312 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:55:29,312 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:55:29,312 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:55:29,312 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:55:29,313 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:55:29,331 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-23 17:55:29,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-23 17:55:29,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:29,338 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] [2020-10-23 17:55:29,339 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:29,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:29,345 INFO L82 PathProgramCache]: Analyzing trace with hash 376373771, now seen corresponding path program 1 times [2020-10-23 17:55:29,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:29,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267279863] [2020-10-23 17:55:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:29,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:55:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:29,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:55:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:29,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 17:55:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:55:29,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267279863] [2020-10-23 17:55:29,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:55:29,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:55:29,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069890097] [2020-10-23 17:55:29,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:55:29,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:55:29,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:55:29,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:55:29,697 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-23 17:55:30,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:55:30,261 INFO L93 Difference]: Finished difference Result 143 states and 233 transitions. [2020-10-23 17:55:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:55:30,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-23 17:55:30,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:55:30,273 INFO L225 Difference]: With dead ends: 143 [2020-10-23 17:55:30,273 INFO L226 Difference]: Without dead ends: 69 [2020-10-23 17:55:30,277 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 [2020-10-23 17:55:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-23 17:55:30,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-23 17:55:30,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-23 17:55:30,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-23 17:55:30,327 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 26 [2020-10-23 17:55:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:55:30,328 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-23 17:55:30,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:55:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-23 17:55:30,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 17:55:30,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:30,330 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] [2020-10-23 17:55:30,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:55:30,331 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:30,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1407820190, now seen corresponding path program 1 times [2020-10-23 17:55:30,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:30,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322424236] [2020-10-23 17:55:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:30,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:30,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:30,616 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:55:30,617 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:55:30,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:55:30,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:55:30 BoogieIcfgContainer [2020-10-23 17:55:30,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:55:30,678 INFO L168 Benchmark]: Toolchain (without parser) took 2875.40 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 95.5 MB in the end (delta: 33.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:30,680 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:55:30,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.25 ms. Allocated memory is still 155.2 MB. Free memory was 128.8 MB in the beginning and 115.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:30,683 INFO L168 Benchmark]: Boogie Preprocessor took 66.78 ms. Allocated memory is still 155.2 MB. Free memory was 115.6 MB in the beginning and 113.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:30,684 INFO L168 Benchmark]: RCFGBuilder took 878.12 ms. Allocated memory is still 155.2 MB. Free memory was 113.2 MB in the beginning and 120.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:30,685 INFO L168 Benchmark]: TraceAbstraction took 1424.76 ms. Allocated memory is still 155.2 MB. Free memory was 119.5 MB in the beginning and 95.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:30,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 490.25 ms. Allocated memory is still 155.2 MB. Free memory was 128.8 MB in the beginning and 115.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.78 ms. Allocated memory is still 155.2 MB. Free memory was 115.6 MB in the beginning and 113.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 878.12 ms. Allocated memory is still 155.2 MB. Free memory was 113.2 MB in the beginning and 120.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1424.76 ms. Allocated memory is still 155.2 MB. Free memory was 119.5 MB in the beginning and 95.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 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 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372034706243607, \old(Zero_fmod)=9223372034706243604, \old(Zero_fmod)=9223372034706243598, one_fmod=1, Zero_fmod={5:0}] [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) VAL [\old(x)=9223372034706243597, one_fmod=1, Zero_fmod={5:0}] [L163] __int32_t hx; VAL [\old(x)=9223372034706243597, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243597, \result=-2, hx=0, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L182] RET isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, one_fmod=1, Zero_fmod={5:0}] [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, one_fmod=1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, lx=9223372034706243605, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, hx=2146435072, lx=9223372034706243605, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L184] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243602, one_fmod=1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243602, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L188] CALL reach_error() VAL [one_fmod=1, Zero_fmod={5:0}] [L3] __assert_fail("0", "double_req_bl_1131b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 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: 98 SDtfs, 8 SDslu, 86 SDs, 0 SdLazy, 101 SolverSat, 8 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2200 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...