/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_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:55:25,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:55:25,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:55:25,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:55:25,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:55:25,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:55:25,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:55:25,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:55:25,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:55:25,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:55:25,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:55:25,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:55:25,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:55:25,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:55:25,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:55:25,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:55:25,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:55:25,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:55:25,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:55:25,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:55:25,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:55:25,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:55:25,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:55:25,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:55:25,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 10:55:25,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:55:25,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:55:25,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:55:25,648 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 10:55:25,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:55:25,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:55:25,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:55:25,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:55:25,686 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:55:25,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:55:25,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:55:25,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:55:25,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:55:25,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:55:25,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:55:25,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:55:25,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:55:25,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:55:25,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:55:25,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:55:25,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:55:25,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:55:25,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:55:25,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:55:25,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:55:25,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:55:25,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:55:25,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:55:25,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:55:25,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:55:25,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:55:25,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:55:25,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:55:25,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:55:25,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:55:25,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:55:25,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:55:25,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:55:25,982 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:55:25,983 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-07-07 10:55:26,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea29a995/7386a68fa43741828b3ebcd567a38c91/FLAG3c302f9ec [2020-07-07 10:55:26,520 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:55:26,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-07-07 10:55:26,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea29a995/7386a68fa43741828b3ebcd567a38c91/FLAG3c302f9ec [2020-07-07 10:55:26,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea29a995/7386a68fa43741828b3ebcd567a38c91 [2020-07-07 10:55:26,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:55:26,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:55:26,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:26,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:55:26,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:55:26,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1cb88d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26, skipping insertion in model container [2020-07-07 10:55:26,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:55:26,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:55:27,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:27,215 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:55:27,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:27,392 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:55:27,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27 WrapperNode [2020-07-07 10:55:27,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:27,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:55:27,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:55:27,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:55:27,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:55:27,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:55:27,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:55:27,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:55:27,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (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 10:55:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:55:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:55:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-07 10:55:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-07 10:55:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:55:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:55:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 10:55:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-07 10:55:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:55:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 10:55:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:55:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:55:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 10:55:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:55:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-07 10:55:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:55:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:55:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-07 10:55:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:55:28,156 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:55:28,156 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-07 10:55:28,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:28 BoogieIcfgContainer [2020-07-07 10:55:28,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:55:28,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:55:28,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:55:28,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:55:28,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:55:26" (1/3) ... [2020-07-07 10:55:28,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3959275a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:28, skipping insertion in model container [2020-07-07 10:55:28,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (2/3) ... [2020-07-07 10:55:28,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3959275a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:28, skipping insertion in model container [2020-07-07 10:55:28,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:28" (3/3) ... [2020-07-07 10:55:28,176 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-07-07 10:55:28,187 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:55:28,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:55:28,211 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:55:28,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:55:28,245 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:55:28,246 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:55:28,246 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:55:28,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:55:28,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:55:28,246 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:55:28,247 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:55:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-07 10:55:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 10:55:28,291 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:28,292 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] [2020-07-07 10:55:28,293 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:28,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:28,301 INFO L82 PathProgramCache]: Analyzing trace with hash -759211570, now seen corresponding path program 1 times [2020-07-07 10:55:28,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:28,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680005105] [2020-07-07 10:55:28,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,628 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 10:55:28,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680005105] [2020-07-07 10:55:28,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:55:28,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:55:28,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384175722] [2020-07-07 10:55:28,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:55:28,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:55:28,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:55:28,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:55:28,654 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-07 10:55:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:55:28,999 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-07 10:55:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:55:29,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-07 10:55:29,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:55:29,012 INFO L225 Difference]: With dead ends: 138 [2020-07-07 10:55:29,013 INFO L226 Difference]: Without dead ends: 68 [2020-07-07 10:55:29,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:55:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-07 10:55:29,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-07 10:55:29,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-07 10:55:29,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-07 10:55:29,064 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-07 10:55:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:55:29,064 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-07 10:55:29,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:55:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-07 10:55:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 10:55:29,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:29,066 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] [2020-07-07 10:55:29,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:55:29,067 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:29,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:29,068 INFO L82 PathProgramCache]: Analyzing trace with hash -775583586, now seen corresponding path program 1 times [2020-07-07 10:55:29,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:29,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616398176] [2020-07-07 10:55:29,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:29,473 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:55:29,474 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:55:29,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:55:29,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:55:29 BoogieIcfgContainer [2020-07-07 10:55:29,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:55:29,567 INFO L168 Benchmark]: Toolchain (without parser) took 2631.08 ms. Allocated memory was 138.9 MB in the beginning and 235.9 MB in the end (delta: 97.0 MB). Free memory was 103.1 MB in the beginning and 180.8 MB in the end (delta: -77.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,569 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.51 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 178.2 MB in the end (delta: -75.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,573 INFO L168 Benchmark]: Boogie Preprocessor took 124.59 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 175.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,573 INFO L168 Benchmark]: RCFGBuilder took 648.32 ms. Allocated memory is still 202.9 MB. Free memory was 175.4 MB in the beginning and 139.6 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,575 INFO L168 Benchmark]: TraceAbstraction took 1395.91 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 138.9 MB in the beginning and 180.8 MB in the end (delta: -41.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 10:55:29,586 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 457.51 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 178.2 MB in the end (delta: -75.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.59 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 175.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 648.32 ms. Allocated memory is still 202.9 MB. Free memory was 175.4 MB in the beginning and 139.6 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1395.91 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 138.9 MB in the beginning and 180.8 MB in the end (delta: -41.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 41, overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 185, overapproximation of bitwiseXor at line 37. Possible FailurePath: [L15-L18] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372034706243602, \old(Zero_fmod)=9223372034706243590, \old(Zero_fmod)=9223372034706243599, one_fmod=1, Zero_fmod={3:0}] [L177] double y = -1.0 / 0.0; [L178] double x = __VERIFIER_nondet_double(); [L180] CALL isfinite_double(x) VAL [\old(x)=9223372034706243588, one_fmod=1, Zero_fmod={3:0}] [L161] __int32_t hx; VAL [\old(x)=9223372034706243588, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L163] ieee_double_shape_type gh_u; [L164] gh_u.value = (x) [L165] EXPR gh_u.parts.msw [L165] (hx) = gh_u.parts.msw [L167] 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}] [L180] RET isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L180] COND TRUE isfinite_double(x) [L182] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, Zero_fmod={3:0}] [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L22] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (hx) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lx) = ew_u.parts.lsw [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (y) [L33] EXPR ew_u.parts.msw [L33] (hy) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ly) = ew_u.parts.lsw [L36] sx = hx & 0x80000000 [L37] hx ^= sx [L38] hy &= 0x7fffffff VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=-3, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L42] return (x * y) / (x * y); VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, hx=2146435072, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=-3, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L182] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243589, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L186] __VERIFIER_error() VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, 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, 0.0s 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, 0.2s 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...