/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:43:19,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:43:19,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:43:19,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:43:19,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:43:19,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:43:19,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:43:19,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:43:19,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:43:19,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:43:19,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:43:19,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:43:19,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:43:19,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:43:19,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:43:19,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:43:19,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:43:19,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:43:19,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:43:19,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:43:19,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:43:19,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:43:19,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:43:19,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:43:19,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 11:43:19,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:43:19,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:43:19,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:43:19,321 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 [2020-07-17 11:43:19,344 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:43:19,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:43:19,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:43:19,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:43:19,348 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:43:19,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:43:19,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:43:19,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:43:19,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:43:19,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:43:19,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:43:19,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:43:19,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:43:19,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:43:19,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:43:19,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:43:19,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:43:19,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:43:19,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:43:19,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:43:19,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:43:19,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:43:19,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:43:19,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:43:19,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:43:19,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:43:19,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:43:19,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:43:19,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:43:19,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:43:19,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:43:19,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:43:19,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:43:19,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:43:19,678 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:43:19,679 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-17 11:43:19,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d665e93e/40833653b7614a3fa8e9a1397eb10aa5/FLAG21014ce51 [2020-07-17 11:43:20,286 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:43:20,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-17 11:43:20,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d665e93e/40833653b7614a3fa8e9a1397eb10aa5/FLAG21014ce51 [2020-07-17 11:43:20,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d665e93e/40833653b7614a3fa8e9a1397eb10aa5 [2020-07-17 11:43:20,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:43:20,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:43:20,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:43:20,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:43:20,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:43:20,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:43:20" (1/1) ... [2020-07-17 11:43:20,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6429d108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:20, skipping insertion in model container [2020-07-17 11:43:20,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:43:20" (1/1) ... [2020-07-17 11:43:20,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:43:20,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:43:21,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:43:21,028 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:43:21,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:43:21,115 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:43:21,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21 WrapperNode [2020-07-17 11:43:21,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:43:21,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:43:21,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:43:21,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:43:21,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:43:21,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:43:21,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:43:21,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:43:21,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (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 11:43:21,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:43:21,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:43:21,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-17 11:43:21,263 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-17 11:43:21,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-17 11:43:21,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:43:21,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:43:21,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-17 11:43:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-17 11:43:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-17 11:43:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:43:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 11:43:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:43:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:43:21,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 11:43:21,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:43:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-17 11:43:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:43:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:43:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-17 11:43:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:43:21,898 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:43:21,898 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-17 11:43:21,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:43:21 BoogieIcfgContainer [2020-07-17 11:43:21,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:43:21,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:43:21,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:43:21,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:43:21,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:43:20" (1/3) ... [2020-07-17 11:43:21,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ef52f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:43:21, skipping insertion in model container [2020-07-17 11:43:21,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (2/3) ... [2020-07-17 11:43:21,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ef52f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:43:21, skipping insertion in model container [2020-07-17 11:43:21,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:43:21" (3/3) ... [2020-07-17 11:43:21,911 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-07-17 11:43:21,922 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:43:21,930 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:43:21,944 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:43:21,968 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:43:21,968 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:43:21,968 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:43:21,969 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:43:21,969 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:43:21,969 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:43:21,969 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:43:21,970 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:43:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-17 11:43:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 11:43:22,000 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:22,001 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] [2020-07-17 11:43:22,001 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:22,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:22,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-07-17 11:43:22,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:22,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138068355] [2020-07-17 11:43:22,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,261 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 11:43:22,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138068355] [2020-07-17 11:43:22,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:43:22,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:43:22,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088904101] [2020-07-17 11:43:22,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:43:22,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:43:22,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:43:22,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:43:22,331 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-17 11:43:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:43:22,727 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-17 11:43:22,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:43:22,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-17 11:43:22,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:43:22,740 INFO L225 Difference]: With dead ends: 138 [2020-07-17 11:43:22,740 INFO L226 Difference]: Without dead ends: 68 [2020-07-17 11:43:22,745 INFO L675 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 [2020-07-17 11:43:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-17 11:43:22,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-17 11:43:22,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-17 11:43:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-17 11:43:22,794 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-17 11:43:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:43:22,795 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-17 11:43:22,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:43:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-17 11:43:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-17 11:43:22,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:22,797 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] [2020-07-17 11:43:22,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:43:22,797 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:22,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:22,798 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-07-17 11:43:22,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:22,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079244326] [2020-07-17 11:43:22,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:43:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:43:23,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:43:23,139 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:43:23,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:43:23,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:43:23 BoogieIcfgContainer [2020-07-17 11:43:23,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:43:23,181 INFO L168 Benchmark]: Toolchain (without parser) took 2508.51 ms. Allocated memory was 145.2 MB in the beginning and 235.4 MB in the end (delta: 90.2 MB). Free memory was 103.1 MB in the beginning and 180.2 MB in the end (delta: -77.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,182 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.89 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 176.8 MB in the end (delta: -74.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,184 INFO L168 Benchmark]: Boogie Preprocessor took 65.76 ms. Allocated memory is still 201.9 MB. Free memory was 176.8 MB in the beginning and 174.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,187 INFO L168 Benchmark]: RCFGBuilder took 720.59 ms. Allocated memory is still 201.9 MB. Free memory was 174.1 MB in the beginning and 137.8 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,188 INFO L168 Benchmark]: TraceAbstraction took 1274.06 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 137.2 MB in the beginning and 180.2 MB in the end (delta: -43.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 11:43:23,192 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 441.89 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 176.8 MB in the end (delta: -74.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.76 ms. Allocated memory is still 201.9 MB. Free memory was 176.8 MB in the beginning and 174.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 720.59 ms. Allocated memory is still 201.9 MB. Free memory was 174.1 MB in the beginning and 137.8 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1274.06 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 137.2 MB in the beginning and 180.2 MB in the end (delta: -43.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372034706243602, \old(Zero_fmod)=9223372034706243599, \old(Zero_fmod)=9223372034706243590, one_fmod=1, Zero_fmod={3:0}] [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) VAL [\old(x)=9223372034706243588, one_fmod=1, Zero_fmod={3:0}] [L164] __int32_t hx; VAL [\old(x)=9223372034706243588, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243588, \result=6, hx=-1, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L183] RET isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, Zero_fmod={3:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=9, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, hx=2146435072, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=9, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L185] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243589, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L189] __VERIFIER_error() VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=73occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1656 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...