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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0281.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:41:39,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:41:39,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:41:39,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:41:39,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:41:39,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:41:39,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:41:39,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:41:39,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:41:39,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:41:39,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:41:39,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:41:39,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:41:39,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:41:39,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:41:39,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:41:39,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:41:39,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:41:39,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:41:39,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:41:39,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:41:39,414 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:41:39,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:41:39,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:41:39,415 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:41:39,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:41:39,416 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:41:39,417 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:41:39,417 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:41:39,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:41:39,417 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:41:39,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:41:39,418 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:41:39,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:41:39,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:41:39,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:41:39,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:41:39,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:41:39,420 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:41:39,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:41:39,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:41:39,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:41:39,420 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:41:39,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:41:39,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:41:39,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:41:39,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:41:39,421 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:41:39,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:41:39,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:41:39,422 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:41:39,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:41:39,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:41:39,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:41:39,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:41:39,480 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:41:39,481 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0281.c [2019-09-10 01:41:39,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12a6e0334/469a1b6303e840a3ae16d409dd056eb1/FLAGe1c71b23d [2019-09-10 01:41:40,048 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:41:40,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0281.c [2019-09-10 01:41:40,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12a6e0334/469a1b6303e840a3ae16d409dd056eb1/FLAGe1c71b23d [2019-09-10 01:41:40,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12a6e0334/469a1b6303e840a3ae16d409dd056eb1 [2019-09-10 01:41:40,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:41:40,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:41:40,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:41:40,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:41:40,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:41:40,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12bea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40, skipping insertion in model container [2019-09-10 01:41:40,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,450 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:41:40,494 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:41:40,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:41:40,814 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:41:40,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:41:40,905 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:41:40,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40 WrapperNode [2019-09-10 01:41:40,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:41:40,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:41:40,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:41:40,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:41:40,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (1/1) ... [2019-09-10 01:41:40,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:41:40,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:41:40,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:41:40,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:41:40,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (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 [2019-09-10 01:41:41,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:41:41,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:41:41,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-10 01:41:41,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2019-09-10 01:41:41,024 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2019-09-10 01:41:41,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asin [2019-09-10 01:41:41,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:41:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:41:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:41:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-10 01:41:41,024 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2019-09-10 01:41:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:41:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:41:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:41:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:41:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:41:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:41:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2019-09-10 01:41:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asin [2019-09-10 01:41:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:41:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:41:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:41:41,915 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:41:41,915 INFO L283 CfgBuilder]: Removed 18 assume(true) statements. [2019-09-10 01:41:41,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:41:41 BoogieIcfgContainer [2019-09-10 01:41:41,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:41:41,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:41:41,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:41:41,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:41:41,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:41:40" (1/3) ... [2019-09-10 01:41:41,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eac207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:41:41, skipping insertion in model container [2019-09-10 01:41:41,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:41:40" (2/3) ... [2019-09-10 01:41:41,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eac207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:41:41, skipping insertion in model container [2019-09-10 01:41:41,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:41:41" (3/3) ... [2019-09-10 01:41:41,924 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0281.c [2019-09-10 01:41:41,933 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:41:41,943 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:41:41,961 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:41:41,995 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:41:41,995 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:41:41,995 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:41:41,995 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:41:41,996 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:41:41,996 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:41:41,996 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:41:41,996 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:41:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2019-09-10 01:41:42,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:41:42,021 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:41:42,022 INFO L399 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] [2019-09-10 01:41:42,024 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:41:42,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:41:42,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1794577113, now seen corresponding path program 1 times [2019-09-10 01:41:42,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:41:42,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:41:42,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:41:42,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:41:42,074 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:41:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:41:42,168 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2019-09-10 01:41:42,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:41:42,168 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:41:42,169 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:41:42,170 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:41:42,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:41:42,171 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:41:42,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:41:42,193 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 01:41:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:41:42,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2019-09-10 01:41:42,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:41:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:41:42,313 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:41:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:41:42,353 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:41:42,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-09-10 01:41:42,354 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:41:42,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:41:42,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:41:42,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:41:42,381 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 2 states. [2019-09-10 01:41:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:41:42,407 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-09-10 01:41:42,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:41:42,409 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-10 01:41:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:41:42,417 INFO L225 Difference]: With dead ends: 12 [2019-09-10 01:41:42,417 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:41:42,420 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:41:42,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:41:42,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:41:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:41:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:41:42,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-09-10 01:41:42,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:41:42,447 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:41:42,447 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:41:42,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:41:42,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:41:42,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:41:42 BoogieIcfgContainer [2019-09-10 01:41:42,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:41:42,459 INFO L168 Benchmark]: Toolchain (without parser) took 2025.19 ms. Allocated memory was 137.4 MB in the beginning and 196.6 MB in the end (delta: 59.2 MB). Free memory was 84.6 MB in the beginning and 88.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:41:42,460 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.5 MB in the beginning and 103.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:41:42,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.34 ms. Allocated memory was 137.4 MB in the beginning and 196.6 MB in the end (delta: 59.2 MB). Free memory was 84.3 MB in the beginning and 168.7 MB in the end (delta: -84.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:41:42,463 INFO L168 Benchmark]: Boogie Preprocessor took 64.33 ms. Allocated memory is still 196.6 MB. Free memory was 168.7 MB in the beginning and 166.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:41:42,464 INFO L168 Benchmark]: RCFGBuilder took 945.65 ms. Allocated memory is still 196.6 MB. Free memory was 166.1 MB in the beginning and 123.3 MB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:41:42,466 INFO L168 Benchmark]: TraceAbstraction took 538.04 ms. Allocated memory is still 196.6 MB. Free memory was 122.7 MB in the beginning and 88.4 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:41:42,470 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.5 MB in the beginning and 103.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 473.34 ms. Allocated memory was 137.4 MB in the beginning and 196.6 MB in the end (delta: 59.2 MB). Free memory was 84.3 MB in the beginning and 168.7 MB in the end (delta: -84.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.33 ms. Allocated memory is still 196.6 MB. Free memory was 168.7 MB in the beginning and 166.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 945.65 ms. Allocated memory is still 196.6 MB. Free memory was 166.1 MB in the beginning and 123.3 MB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 538.04 ms. Allocated memory is still 196.6 MB. Free memory was 122.7 MB in the beginning and 88.4 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 248]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 94 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...