/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 0.1.25-72570d3 [2020-08-22 16:17:15,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:17:15,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:17:15,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:17:15,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:17:15,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:17:15,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:17:15,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:17:15,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:17:15,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:17:15,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:17:15,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:17:15,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:17:15,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:17:15,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:17:15,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:17:15,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:17:15,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:17:15,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:17:15,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:17:15,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:17:15,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:17:15,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:17:15,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:17:15,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:17:15,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:17:15,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:17:15,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:17:15,150 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 [2020-08-22 16:17:15,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:17:15,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:17:15,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:17:15,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:17:15,174 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:17:15,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:17:15,174 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:17:15,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:17:15,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:17:15,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:17:15,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:17:15,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:17:15,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:17:15,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:17:15,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:17:15,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:17:15,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:17:15,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:17:15,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:17:15,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:17:15,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:17:15,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:17:15,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:17:15,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:17:15,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:17:15,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:17:15,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:17:15,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:17:15,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:17:15,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:17:15,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:17:15,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:17:15,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:17:15,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:17:15,488 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:17:15,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-22 16:17:15,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39a955510/b065f2923e59434ea32cd4c61487c5d1/FLAG74fee83f1 [2020-08-22 16:17:16,001 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:17:16,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-22 16:17:16,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39a955510/b065f2923e59434ea32cd4c61487c5d1/FLAG74fee83f1 [2020-08-22 16:17:16,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39a955510/b065f2923e59434ea32cd4c61487c5d1 [2020-08-22 16:17:16,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:17:16,401 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:17:16,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:17:16,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:17:16,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:17:16,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e399bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16, skipping insertion in model container [2020-08-22 16:17:16,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:17:16,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:17:16,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:17:16,699 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:17:16,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:17:16,873 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:17:16,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16 WrapperNode [2020-08-22 16:17:16,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:17:16,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:17:16,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:17:16,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:17:16,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:17:16,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:17:16,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:17:16,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:17:16,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (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 [2020-08-22 16:17:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:17:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:17:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-22 16:17:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-22 16:17:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:17:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:17:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 16:17:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-22 16:17:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:17:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 16:17:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:17:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:17:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 16:17:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-22 16:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-22 16:17:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:17:17,582 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:17:17,583 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-22 16:17:17,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:17:17 BoogieIcfgContainer [2020-08-22 16:17:17,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:17:17,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:17:17,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:17:17,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:17:17,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:17:16" (1/3) ... [2020-08-22 16:17:17,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e05d9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:17:17, skipping insertion in model container [2020-08-22 16:17:17,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16" (2/3) ... [2020-08-22 16:17:17,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e05d9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:17:17, skipping insertion in model container [2020-08-22 16:17:17,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:17:17" (3/3) ... [2020-08-22 16:17:17,596 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-08-22 16:17:17,607 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:17:17,615 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:17:17,626 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:17:17,650 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:17:17,650 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:17:17,650 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:17:17,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:17:17,652 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:17:17,652 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:17:17,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:17:17,652 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:17:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-08-22 16:17:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-22 16:17:17,680 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:17:17,681 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] [2020-08-22 16:17:17,682 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:17:17,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:17:17,688 INFO L82 PathProgramCache]: Analyzing trace with hash -759211570, now seen corresponding path program 1 times [2020-08-22 16:17:17,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:17:17,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093382233] [2020-08-22 16:17:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:17:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:17:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:17:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 16:17:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:17:17,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093382233] [2020-08-22 16:17:17,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:17:17,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:17:17,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792941113] [2020-08-22 16:17:17,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:17:17,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:17:17,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:17:17,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 16:17:17,978 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-08-22 16:17:18,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:17:18,275 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-08-22 16:17:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:17:18,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-08-22 16:17:18,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:17:18,288 INFO L225 Difference]: With dead ends: 138 [2020-08-22 16:17:18,288 INFO L226 Difference]: Without dead ends: 68 [2020-08-22 16:17:18,293 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 [2020-08-22 16:17:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-22 16:17:18,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-22 16:17:18,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-22 16:17:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-08-22 16:17:18,341 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-08-22 16:17:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:17:18,341 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-08-22 16:17:18,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:17:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-08-22 16:17:18,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-22 16:17:18,343 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:17:18,343 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] [2020-08-22 16:17:18,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:17:18,344 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:17:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:17:18,344 INFO L82 PathProgramCache]: Analyzing trace with hash -775583586, now seen corresponding path program 1 times [2020-08-22 16:17:18,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:17:18,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244395496] [2020-08-22 16:17:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:17:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:17:18,488 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:17:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:17:18,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:17:18,594 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:17:18,594 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:17:18,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:17:18,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:17:18 BoogieIcfgContainer [2020-08-22 16:17:18,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:17:18,642 INFO L168 Benchmark]: Toolchain (without parser) took 2237.20 ms. Allocated memory was 147.3 MB in the beginning and 233.3 MB in the end (delta: 86.0 MB). Free memory was 102.7 MB in the beginning and 183.0 MB in the end (delta: -80.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:18,643 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-08-22 16:17:18,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.40 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.5 MB in the beginning and 178.6 MB in the end (delta: -76.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:18,645 INFO L168 Benchmark]: Boogie Preprocessor took 62.82 ms. Allocated memory is still 203.4 MB. Free memory was 178.6 MB in the beginning and 176.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:18,646 INFO L168 Benchmark]: RCFGBuilder took 649.75 ms. Allocated memory is still 203.4 MB. Free memory was 176.0 MB in the beginning and 140.0 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:18,647 INFO L168 Benchmark]: TraceAbstraction took 1047.23 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 139.3 MB in the beginning and 183.0 MB in the end (delta: -43.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 16:17:18,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 472.40 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.5 MB in the beginning and 178.6 MB in the end (delta: -76.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.82 ms. Allocated memory is still 203.4 MB. Free memory was 178.6 MB in the beginning and 176.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 649.75 ms. Allocated memory is still 203.4 MB. Free memory was 176.0 MB in the beginning and 140.0 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1047.23 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 139.3 MB in the beginning and 183.0 MB in the end (delta: -43.6 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)=9223372032558759950, \old(Zero_fmod)=9223372032558759942, \old(Zero_fmod)=9223372032558759946, 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)=9223372032558759939, one_fmod=1, Zero_fmod={3:0}] [L161] __int32_t hx; VAL [\old(x)=9223372032558759939, one_fmod=1, x=9223372032558759939, 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)=9223372032558759939, \result=-3, hx=-2, one_fmod=1, x=9223372032558759939, Zero_fmod={3:0}] [L180] RET isfinite_double(x) VAL [isfinite_double(x)=-3, one_fmod=1, x=9223372032558759939, Zero_fmod={3:0}] [L180] COND TRUE isfinite_double(x) [L182] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372032558759939, \old(y)=9223372032558759952, 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)=9223372032558759939, \old(y)=9223372032558759952, one_fmod=1, x=9223372032558759939, y=9223372032558759952, 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)=9223372032558759939, \old(y)=9223372032558759952, lx=9223372032558759941, ly=9223372032558759938, one_fmod=1, sx=-1, x=9223372032558759939, y=9223372032558759952, 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)=9223372032558759939, \old(y)=9223372032558759952, hx=2146435072, lx=9223372032558759941, ly=9223372032558759938, one_fmod=1, sx=-1, x=9223372032558759939, y=9223372032558759952, Zero_fmod={3:0}] [L182] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372032558759940, one_fmod=1, x=9223372032558759939, y=9223372032558759952, Zero_fmod={3:0}] [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x VAL [one_fmod=1, res=9223372032558759940, x=9223372032558759939, y=9223372032558759952, Zero_fmod={3:0}] [L186] __VERIFIER_error() VAL [one_fmod=1, res=9223372032558759940, x=9223372032558759939, y=9223372032558759952, 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: 0.9s, 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, 0.1s 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, 0.1s 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...