/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -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 0.1.25-177f698 [2020-08-21 15:40:55,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 15:40:55,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 15:40:55,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 15:40:55,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 15:40:55,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 15:40:55,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 15:40:55,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 15:40:55,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 15:40:55,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 15:40:55,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 15:40:55,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 15:40:55,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 15:40:55,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 15:40:55,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 15:40:55,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 15:40:55,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 15:40:55,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 15:40:55,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 15:40:55,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 15:40:55,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 15:40:55,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 15:40:55,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 15:40:55,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 15:40:55,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 15:40:55,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 15:40:55,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 15:40:55,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 15:40:55,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 15:40:55,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-21 15:40:55,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 15:40:55,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 15:40:55,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 15:40:55,293 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 [2020-08-21 15:40:55,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 15:40:55,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 15:40:55,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 15:40:55,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 15:40:55,323 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 15:40:55,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 15:40:55,323 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 15:40:55,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 15:40:55,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 15:40:55,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 15:40:55,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 15:40:55,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 15:40:55,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 15:40:55,324 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 15:40:55,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 15:40:55,325 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 15:40:55,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 15:40:55,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 15:40:55,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 15:40:55,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 15:40:55,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 15:40:55,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 15:40:55,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 15:40:55,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 15:40:55,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 15:40:55,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 15:40:55,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 15:40:55,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 15:40:55,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 15:40:55,328 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=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 15:40:55,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 15:40:55,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 15:40:55,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 15:40:55,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 15:40:55,690 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 15:40:55,690 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-21 15:40:55,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d723cef87/b75206ca2a5e40e78824b5418c0c1df4/FLAGf8b3809df [2020-08-21 15:40:56,306 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 15:40:56,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-21 15:40:56,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d723cef87/b75206ca2a5e40e78824b5418c0c1df4/FLAGf8b3809df [2020-08-21 15:40:56,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d723cef87/b75206ca2a5e40e78824b5418c0c1df4 [2020-08-21 15:40:56,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 15:40:56,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 15:40:56,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 15:40:56,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 15:40:56,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 15:40:56,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:40:56" (1/1) ... [2020-08-21 15:40:56,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d5d851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:56, skipping insertion in model container [2020-08-21 15:40:56,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:40:56" (1/1) ... [2020-08-21 15:40:56,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 15:40:56,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 15:40:56,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:40:57,012 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 15:40:57,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:40:57,092 INFO L208 MainTranslator]: Completed translation [2020-08-21 15:40:57,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57 WrapperNode [2020-08-21 15:40:57,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 15:40:57,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 15:40:57,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 15:40:57,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 15:40:57,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (1/1) ... [2020-08-21 15:40:57,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (1/1) ... [2020-08-21 15:40:57,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (1/1) ... [2020-08-21 15:40:57,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (1/1) ... [2020-08-21 15:40:57,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (1/1) ... [2020-08-21 15:40:57,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (1/1) ... [2020-08-21 15:40:57,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (1/1) ... [2020-08-21 15:40:57,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 15:40:57,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 15:40:57,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 15:40:57,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 15:40:57,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (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 [2020-08-21 15:40:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 15:40:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 15:40:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-21 15:40:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-21 15:40:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 15:40:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 15:40:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-21 15:40:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-21 15:40:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 15:40:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-21 15:40:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 15:40:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 15:40:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-21 15:40:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 15:40:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-21 15:40:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 15:40:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 15:40:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-21 15:40:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 15:40:57,860 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 15:40:57,860 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-21 15:40:57,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:40:57 BoogieIcfgContainer [2020-08-21 15:40:57,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 15:40:57,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 15:40:57,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 15:40:57,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 15:40:57,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 03:40:56" (1/3) ... [2020-08-21 15:40:57,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424969e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:40:57, skipping insertion in model container [2020-08-21 15:40:57,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:40:57" (2/3) ... [2020-08-21 15:40:57,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424969e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:40:57, skipping insertion in model container [2020-08-21 15:40:57,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:40:57" (3/3) ... [2020-08-21 15:40:57,874 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-08-21 15:40:57,885 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 15:40:57,894 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 15:40:57,909 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 15:40:57,935 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 15:40:57,935 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 15:40:57,935 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 15:40:57,935 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 15:40:57,936 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 15:40:57,936 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 15:40:57,936 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 15:40:57,936 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 15:40:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-08-21 15:40:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-21 15:40:57,964 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:40:57,965 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] [2020-08-21 15:40:57,965 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:40:57,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:40:57,972 INFO L82 PathProgramCache]: Analyzing trace with hash -759211570, now seen corresponding path program 1 times [2020-08-21 15:40:57,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:40:57,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731981511] [2020-08-21 15:40:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:40:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:40:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:40:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:40:58,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:40:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:40:58,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 15:40:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:40:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:40:58,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731981511] [2020-08-21 15:40:58,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:40:58,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 15:40:58,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068070855] [2020-08-21 15:40:58,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 15:40:58,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:40:58,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 15:40:58,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 15:40:58,382 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-08-21 15:40:58,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:40:58,794 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-08-21 15:40:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 15:40:58,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-08-21 15:40:58,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:40:58,807 INFO L225 Difference]: With dead ends: 138 [2020-08-21 15:40:58,808 INFO L226 Difference]: Without dead ends: 68 [2020-08-21 15:40:58,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 15:40:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-21 15:40:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-21 15:40:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-21 15:40:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-08-21 15:40:58,862 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-08-21 15:40:58,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:40:58,863 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-08-21 15:40:58,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 15:40:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-08-21 15:40:58,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-21 15:40:58,865 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:40:58,865 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] [2020-08-21 15:40:58,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 15:40:58,866 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:40:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:40:58,867 INFO L82 PathProgramCache]: Analyzing trace with hash -775583586, now seen corresponding path program 1 times [2020-08-21 15:40:58,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:40:58,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221930217] [2020-08-21 15:40:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:40:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 15:40:59,011 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 15:40:59,012 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 15:40:59,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 15:40:59,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 03:40:59 BoogieIcfgContainer [2020-08-21 15:40:59,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 15:40:59,061 INFO L168 Benchmark]: Toolchain (without parser) took 2426.79 ms. Allocated memory was 139.5 MB in the beginning and 235.9 MB in the end (delta: 96.5 MB). Free memory was 102.5 MB in the beginning and 193.4 MB in the end (delta: -90.9 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-08-21 15:40:59,062 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 15:40:59,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.44 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 177.7 MB in the end (delta: -75.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-08-21 15:40:59,064 INFO L168 Benchmark]: Boogie Preprocessor took 68.47 ms. Allocated memory is still 202.4 MB. Free memory was 177.0 MB in the beginning and 174.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-21 15:40:59,066 INFO L168 Benchmark]: RCFGBuilder took 703.12 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 138.9 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-08-21 15:40:59,068 INFO L168 Benchmark]: TraceAbstraction took 1187.66 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 138.3 MB in the beginning and 193.4 MB in the end (delta: -55.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 15:40:59,078 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 459.44 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 177.7 MB in the end (delta: -75.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.47 ms. Allocated memory is still 202.4 MB. Free memory was 177.0 MB in the beginning and 174.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 703.12 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 138.9 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1187.66 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 138.3 MB in the beginning and 193.4 MB in the end (delta: -55.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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, }; [L177] double y = -1.0 / 0.0; [L178] double x = __VERIFIER_nondet_double(); [L180] CALL isfinite_double(x) [L161] __int32_t hx; [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); [L180] RET isfinite_double(x) [L180] COND TRUE isfinite_double(x) [L182] CALL, EXPR fmod_double(x, y) [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L22] __uint32_t lx, ly, lz; [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 [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L42] return (x * y) / (x * y); [L182] RET, EXPR fmod_double(x, y) [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x [L186] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s 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...