/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_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:55:12,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:55:12,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:55:12,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:55:12,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:55:12,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:55:12,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:55:12,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:55:12,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:55:12,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:55:12,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:55:12,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:55:12,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:55:12,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:55:12,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:55:12,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:55:12,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:55:12,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:55:12,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:55:12,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:55:12,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:55:12,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:55:12,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:55:12,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:55:12,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 10:55:12,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:55:12,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:55:12,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:55:12,317 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 [2020-07-07 10:55:12,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:55:12,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:55:12,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:55:12,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:55:12,341 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:55:12,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:55:12,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:55:12,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:55:12,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:55:12,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:55:12,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:55:12,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:55:12,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:55:12,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:55:12,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:55:12,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:55:12,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:55:12,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:55:12,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:55:12,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:55:12,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:55:12,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:55:12,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:55:12,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:55:12,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:55:12,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:55:12,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:55:12,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:55:12,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:55:12,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:55:12,636 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:55:12,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:55:12,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:55:12,653 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:55:12,653 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:55:12,654 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-07-07 10:55:12,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d8ae4d4/5ec1684dcae64388bdd2770987afbc35/FLAG406365041 [2020-07-07 10:55:13,195 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:55:13,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-07-07 10:55:13,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d8ae4d4/5ec1684dcae64388bdd2770987afbc35/FLAG406365041 [2020-07-07 10:55:13,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d8ae4d4/5ec1684dcae64388bdd2770987afbc35 [2020-07-07 10:55:13,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:55:13,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:55:13,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:13,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:55:13,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:55:13,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:13,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca52adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13, skipping insertion in model container [2020-07-07 10:55:13,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:13,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:55:13,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:55:13,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:13,785 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:55:13,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:13,943 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:55:13,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13 WrapperNode [2020-07-07 10:55:13,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:13,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:55:13,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:55:13,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:55:13,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:13,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:13,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:13,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:14,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:14,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:14,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (1/1) ... [2020-07-07 10:55:14,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:55:14,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:55:14,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:55:14,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:55:14,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (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 [2020-07-07 10:55:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:55:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:55:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-07-07 10:55:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 10:55:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:55:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:55:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-07-07 10:55:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:55:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 10:55:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:55:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:55:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:55:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 10:55:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 10:55:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:55:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:55:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:55:14,438 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:55:14,438 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-07 10:55:14,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:14 BoogieIcfgContainer [2020-07-07 10:55:14,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:55:14,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:55:14,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:55:14,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:55:14,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:55:13" (1/3) ... [2020-07-07 10:55:14,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb84800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:14, skipping insertion in model container [2020-07-07 10:55:14,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:13" (2/3) ... [2020-07-07 10:55:14,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb84800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:14, skipping insertion in model container [2020-07-07 10:55:14,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:14" (3/3) ... [2020-07-07 10:55:14,459 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-07-07 10:55:14,470 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:55:14,481 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:55:14,504 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:55:14,544 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:55:14,544 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:55:14,545 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:55:14,545 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:55:14,545 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:55:14,545 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:55:14,545 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:55:14,545 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:55:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-07-07 10:55:14,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-07 10:55:14,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:14,569 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] [2020-07-07 10:55:14,570 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:14,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:14,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2020-07-07 10:55:14,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:14,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150360618] [2020-07-07 10:55:14,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:55:14,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150360618] [2020-07-07 10:55:14,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:55:14,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:55:14,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958395042] [2020-07-07 10:55:14,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:55:14,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:55:14,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:55:14,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:55:14,826 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-07-07 10:55:15,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:55:15,041 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2020-07-07 10:55:15,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 10:55:15,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-07-07 10:55:15,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:55:15,055 INFO L225 Difference]: With dead ends: 86 [2020-07-07 10:55:15,055 INFO L226 Difference]: Without dead ends: 43 [2020-07-07 10:55:15,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:55:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-07 10:55:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-07-07 10:55:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-07 10:55:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-07-07 10:55:15,104 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2020-07-07 10:55:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:55:15,104 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-07-07 10:55:15,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:55:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-07-07 10:55:15,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-07 10:55:15,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:15,106 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] [2020-07-07 10:55:15,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:55:15,107 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:15,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:15,108 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2020-07-07 10:55:15,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:15,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430544550] [2020-07-07 10:55:15,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:15,263 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:55:15,264 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:55:15,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:55:15,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:55:15 BoogieIcfgContainer [2020-07-07 10:55:15,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:55:15,304 INFO L168 Benchmark]: Toolchain (without parser) took 1741.82 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 104.2 MB in the beginning and 104.9 MB in the end (delta: -664.9 kB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:15,305 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 10:55:15,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.93 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 104.0 MB in the beginning and 182.1 MB in the end (delta: -78.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:15,307 INFO L168 Benchmark]: Boogie Preprocessor took 72.30 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 180.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:15,308 INFO L168 Benchmark]: RCFGBuilder took 431.72 ms. Allocated memory is still 203.9 MB. Free memory was 180.1 MB in the beginning and 158.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:15,308 INFO L168 Benchmark]: TraceAbstraction took 850.11 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 104.9 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:15,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 382.93 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 104.0 MB in the beginning and 182.1 MB in the end (delta: -78.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.30 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 180.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.72 ms. Allocated memory is still 203.9 MB. Free memory was 180.1 MB in the beginning and 158.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 850.11 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 104.9 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] CALL, EXPR floor_double(x) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L26] COND TRUE j0 < 20 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, \result=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L89] RET, EXPR floor_double(x) VAL [floor_double(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L80] return x != x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L92] RET, EXPR isnan_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 52 SDslu, 5 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 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...