/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 12:05:41,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 12:05:41,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 12:05:41,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 12:05:41,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 12:05:41,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 12:05:41,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 12:05:41,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 12:05:41,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 12:05:41,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 12:05:41,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 12:05:41,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 12:05:41,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 12:05:41,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 12:05:41,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 12:05:41,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 12:05:41,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 12:05:41,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 12:05:41,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 12:05:41,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 12:05:41,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 12:05:41,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 12:05:41,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 12:05:41,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 12:05:41,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 12:05:41,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 12:05:41,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 12:05:41,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 12:05:41,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 12:05:41,549 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 12:05:41,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 12:05:41,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 12:05:41,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 12:05:41,551 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 12:05:41,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 12:05:41,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 12:05:41,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 12:05:41,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 12:05:41,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 12:05:41,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 12:05:41,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 12:05:41,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 12:05:41,555 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 12:05:41,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 12:05:41,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 12:05:41,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 12:05:41,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 12:05:41,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 12:05:41,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 12:05:41,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 12:05:41,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 12:05:41,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 12:05:41,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 12:05:41,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 12:05:41,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 12:05:41,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 12:05:41,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 12:05:41,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 12:05:41,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 12:05:41,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 12:05:41,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 12:05:41,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 12:05:41,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 12:05:41,917 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 12:05:41,918 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-18 12:05:41,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25a0d972d/31a27e3ecd764f908b61c2eeeebd25cc/FLAGdb24779cb [2020-08-18 12:05:42,407 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 12:05:42,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-18 12:05:42,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25a0d972d/31a27e3ecd764f908b61c2eeeebd25cc/FLAGdb24779cb [2020-08-18 12:05:42,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25a0d972d/31a27e3ecd764f908b61c2eeeebd25cc [2020-08-18 12:05:42,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 12:05:42,809 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 12:05:42,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 12:05:42,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 12:05:42,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 12:05:42,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:05:42" (1/1) ... [2020-08-18 12:05:42,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d2a1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:42, skipping insertion in model container [2020-08-18 12:05:42,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:05:42" (1/1) ... [2020-08-18 12:05:42,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 12:05:42,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 12:05:43,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:05:43,220 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 12:05:43,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:05:43,328 INFO L208 MainTranslator]: Completed translation [2020-08-18 12:05:43,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43 WrapperNode [2020-08-18 12:05:43,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 12:05:43,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 12:05:43,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 12:05:43,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 12:05:43,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 12:05:43,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 12:05:43,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 12:05:43,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 12:05:43,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 12:05:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 12:05:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 12:05:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-18 12:05:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-18 12:05:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-18 12:05:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 12:05:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 12:05:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-18 12:05:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-18 12:05:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-18 12:05:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 12:05:43,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-18 12:05:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 12:05:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 12:05:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-18 12:05:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 12:05:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-18 12:05:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 12:05:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 12:05:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-18 12:05:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 12:05:44,092 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 12:05:44,093 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-18 12:05:44,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:05:44 BoogieIcfgContainer [2020-08-18 12:05:44,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 12:05:44,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 12:05:44,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 12:05:44,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 12:05:44,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 12:05:42" (1/3) ... [2020-08-18 12:05:44,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d011f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:05:44, skipping insertion in model container [2020-08-18 12:05:44,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (2/3) ... [2020-08-18 12:05:44,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d011f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:05:44, skipping insertion in model container [2020-08-18 12:05:44,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:05:44" (3/3) ... [2020-08-18 12:05:44,107 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-08-18 12:05:44,119 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 12:05:44,128 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 12:05:44,143 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 12:05:44,171 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 12:05:44,171 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 12:05:44,171 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 12:05:44,172 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 12:05:44,172 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 12:05:44,172 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 12:05:44,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 12:05:44,173 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 12:05:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-08-18 12:05:44,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-18 12:05:44,203 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:05:44,204 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] [2020-08-18 12:05:44,205 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:05:44,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:05:44,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-08-18 12:05:44,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:05:44,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106222461] [2020-08-18 12:05:44,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:05:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:05:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:05:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:05:44,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106222461] [2020-08-18 12:05:44,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:05:44,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 12:05:44,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008049349] [2020-08-18 12:05:44,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 12:05:44,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:05:44,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 12:05:44,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 12:05:44,502 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-08-18 12:05:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:05:44,852 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-08-18 12:05:44,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 12:05:44,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-08-18 12:05:44,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:05:44,866 INFO L225 Difference]: With dead ends: 138 [2020-08-18 12:05:44,866 INFO L226 Difference]: Without dead ends: 68 [2020-08-18 12:05:44,870 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 [2020-08-18 12:05:44,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-18 12:05:44,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-18 12:05:44,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-18 12:05:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-08-18 12:05:44,918 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-08-18 12:05:44,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:05:44,918 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-08-18 12:05:44,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 12:05:44,919 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-08-18 12:05:44,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-18 12:05:44,920 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:05:44,920 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] [2020-08-18 12:05:44,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 12:05:44,921 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:05:44,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:05:44,921 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-08-18 12:05:44,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:05:44,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279224670] [2020-08-18 12:05:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:05:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 12:05:45,079 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 12:05:45,080 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 12:05:45,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 12:05:45,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 12:05:45 BoogieIcfgContainer [2020-08-18 12:05:45,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 12:05:45,105 INFO L168 Benchmark]: Toolchain (without parser) took 2295.15 ms. Allocated memory was 140.5 MB in the beginning and 235.4 MB in the end (delta: 94.9 MB). Free memory was 103.1 MB in the beginning and 190.3 MB in the end (delta: -87.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,106 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.33 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 178.6 MB in the end (delta: -75.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,108 INFO L168 Benchmark]: Boogie Preprocessor took 66.52 ms. Allocated memory is still 203.9 MB. Free memory was 178.6 MB in the beginning and 176.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,108 INFO L168 Benchmark]: RCFGBuilder took 701.74 ms. Allocated memory is still 203.9 MB. Free memory was 176.0 MB in the beginning and 139.5 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,109 INFO L168 Benchmark]: TraceAbstraction took 1002.76 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 139.5 MB in the beginning and 190.3 MB in the end (delta: -50.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 12:05:45,113 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 519.33 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 178.6 MB in the end (delta: -75.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.52 ms. Allocated memory is still 203.9 MB. Free memory was 178.6 MB in the beginning and 176.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 701.74 ms. Allocated memory is still 203.9 MB. Free memory was 176.0 MB in the beginning and 139.5 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1002.76 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 139.5 MB in the beginning and 190.3 MB in the end (delta: -50.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 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...