/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:46:53,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:46:53,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:46:53,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 15:46:53,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 15:46:53,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 15:46:53,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 15:46:53,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 15:46:53,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 15:46:53,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 15:46:53,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 15:46:53,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 15:46:53,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 15:46:53,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 15:46:53,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 15:46:53,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 15:46:53,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 15:46:53,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:46:53,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:46:53,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:46:53,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 15:46:53,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:46:53,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:46:53,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:46:53,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:46:53,390 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:46:53,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:46:53,391 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:46:53,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:46:53,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:46:53,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:46:53,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:46:53,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:46:53,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:46:53,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:46:53,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:46:53,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:46:53,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:46:53,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:46:53,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:46:53,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:46:53,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:46:53,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:46:53,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:46:53,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:46:53,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:46:53,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:46:53,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:46:53,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:46:53,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:46:53,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:46:53,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:46:53,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:46:53,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:46:53,825 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:46:53,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c [2021-02-21 15:46:53,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773299af7/e534b45724a54057bc995f4429e91ab1/FLAG34f604c8a [2021-02-21 15:46:54,668 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:46:54,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c [2021-02-21 15:46:54,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773299af7/e534b45724a54057bc995f4429e91ab1/FLAG34f604c8a [2021-02-21 15:46:54,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773299af7/e534b45724a54057bc995f4429e91ab1 [2021-02-21 15:46:54,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:46:55,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:46:55,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:46:55,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:46:55,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:46:55,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:46:54" (1/1) ... [2021-02-21 15:46:55,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383e9685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55, skipping insertion in model container [2021-02-21 15:46:55,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:46:54" (1/1) ... [2021-02-21 15:46:55,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:46:55,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:46:55,252 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c[3437,3450] [2021-02-21 15:46:55,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:46:55,265 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:46:55,323 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730a.c[3437,3450] [2021-02-21 15:46:55,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:46:55,342 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:46:55,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55 WrapperNode [2021-02-21 15:46:55,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:46:55,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:46:55,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:46:55,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:46:55,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (1/1) ... [2021-02-21 15:46:55,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (1/1) ... [2021-02-21 15:46:55,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (1/1) ... [2021-02-21 15:46:55,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (1/1) ... [2021-02-21 15:46:55,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (1/1) ... [2021-02-21 15:46:55,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (1/1) ... [2021-02-21 15:46:55,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (1/1) ... [2021-02-21 15:46:55,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:46:55,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:46:55,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:46:55,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:46:55,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (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 [2021-02-21 15:46:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:46:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:46:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:46:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-02-21 15:46:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2021-02-21 15:46:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2021-02-21 15:46:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:46:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:46:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:46:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:46:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:46:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-02-21 15:46:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-02-21 15:46:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2021-02-21 15:46:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-21 15:46:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:46:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:46:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:46:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-21 15:46:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2021-02-21 15:46:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:46:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:46:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:46:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:46:56,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:46:56,163 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-02-21 15:46:56,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:46:56 BoogieIcfgContainer [2021-02-21 15:46:56,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:46:56,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:46:56,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:46:56,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:46:56,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:46:54" (1/3) ... [2021-02-21 15:46:56,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17006109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:46:56, skipping insertion in model container [2021-02-21 15:46:56,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:46:55" (2/3) ... [2021-02-21 15:46:56,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17006109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:46:56, skipping insertion in model container [2021-02-21 15:46:56,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:46:56" (3/3) ... [2021-02-21 15:46:56,181 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2021-02-21 15:46:56,189 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:46:56,195 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 15:46:56,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 15:46:56,270 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:46:56,270 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:46:56,271 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:46:56,271 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:46:56,271 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:46:56,271 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:46:56,271 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:46:56,271 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:46:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2021-02-21 15:46:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-21 15:46:56,311 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:46:56,312 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] [2021-02-21 15:46:56,313 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:46:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:46:56,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1586401030, now seen corresponding path program 1 times [2021-02-21 15:46:56,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:46:56,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008251594] [2021-02-21 15:46:56,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:46:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:46:56,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:46:56,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:46:56,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:46:56,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:46:56,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:46:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:46:56,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:46:56,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:46:56,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:46:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:46:56,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:46:56,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:46:56,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:46:56,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:46:56,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 15:46:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:46:56,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:46:56,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:46:56,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:46:56,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:46:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:46:56,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008251594] [2021-02-21 15:46:56,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:46:56,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 15:46:56,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256025486] [2021-02-21 15:46:56,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 15:46:56,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:46:56,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 15:46:56,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 15:46:56,832 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2021-02-21 15:46:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:46:57,185 INFO L93 Difference]: Finished difference Result 122 states and 183 transitions. [2021-02-21 15:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 15:46:57,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2021-02-21 15:46:57,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:46:57,198 INFO L225 Difference]: With dead ends: 122 [2021-02-21 15:46:57,198 INFO L226 Difference]: Without dead ends: 61 [2021-02-21 15:46:57,202 INFO L677 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 [2021-02-21 15:46:57,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-02-21 15:46:57,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-02-21 15:46:57,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-02-21 15:46:57,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2021-02-21 15:46:57,254 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 22 [2021-02-21 15:46:57,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:46:57,255 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2021-02-21 15:46:57,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 15:46:57,255 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2021-02-21 15:46:57,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-21 15:46:57,257 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:46:57,257 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] [2021-02-21 15:46:57,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:46:57,257 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:46:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:46:57,258 INFO L82 PathProgramCache]: Analyzing trace with hash 363891989, now seen corresponding path program 1 times [2021-02-21 15:46:57,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:46:57,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464763257] [2021-02-21 15:46:57,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:46:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:46:57,410 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:46:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:46:57,526 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:46:57,586 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:46:57,587 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:46:57,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 15:46:57,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:46:57 BoogieIcfgContainer [2021-02-21 15:46:57,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:46:57,640 INFO L168 Benchmark]: Toolchain (without parser) took 2646.83 ms. Allocated memory is still 177.2 MB. Free memory was 151.1 MB in the beginning and 73.1 MB in the end (delta: 78.1 MB). Peak memory consumption was 79.2 MB. Max. memory is 8.0 GB. [2021-02-21 15:46:57,640 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 177.2 MB. Free memory is still 148.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:46:57,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.67 ms. Allocated memory is still 177.2 MB. Free memory was 149.9 MB in the beginning and 137.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 15:46:57,642 INFO L168 Benchmark]: Boogie Preprocessor took 55.92 ms. Allocated memory is still 177.2 MB. Free memory was 137.6 MB in the beginning and 135.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 15:46:57,643 INFO L168 Benchmark]: RCFGBuilder took 767.91 ms. Allocated memory is still 177.2 MB. Free memory was 135.3 MB in the beginning and 140.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. [2021-02-21 15:46:57,644 INFO L168 Benchmark]: TraceAbstraction took 1466.45 ms. Allocated memory is still 177.2 MB. Free memory was 140.2 MB in the beginning and 73.1 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. [2021-02-21 15:46:57,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 177.2 MB. Free memory is still 148.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 337.67 ms. Allocated memory is still 177.2 MB. Free memory was 149.9 MB in the beginning and 137.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 55.92 ms. Allocated memory is still 177.2 MB. Free memory was 137.6 MB in the beginning and 135.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 767.91 ms. Allocated memory is still 177.2 MB. Free memory was 135.3 MB in the beginning and 140.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1466.45 ms. Allocated memory is still 177.2 MB. Free memory was 140.2 MB in the beginning and 73.1 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 162]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 144, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of bitwiseAnd at line 143. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [\old(one_sqrt)=8589934595, \old(tiny_sqrt)=8589934603, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L157] double x = 1.0 / 0.0; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L158] CALL, EXPR __ieee754_sqrt(x) VAL [\old(x)=8589934597, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=8589934597, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934597] [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (x) [L33] EXPR ew_u.parts.msw [L33] (ix0) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ix1) = ew_u.parts.lsw [L37] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L38] return x * x + x; VAL [\old(x)=8589934597, ix0=-2, ix1=8589934594, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934597] [L158] RET, EXPR __ieee754_sqrt(x) VAL [__ieee754_sqrt(x)=8589934593, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934597] [L158] double res = __ieee754_sqrt(x); [L161] CALL, EXPR isinf_double(res) VAL [\old(x)=8589934593, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L136] __int32_t hx, lx; VAL [\old(x)=8589934593, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934593] [L138] ieee_double_shape_type ew_u; [L139] ew_u.value = (x) [L140] EXPR ew_u.parts.msw [L140] (hx) = ew_u.parts.msw [L141] EXPR ew_u.parts.lsw [L141] (lx) = ew_u.parts.lsw [L143] hx &= 0x7fffffff [L144] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L145] hx = 0x7ff00000 - hx [L146] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=8589934593, \result=0, hx=2146435073, lx=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934593] [L161] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, one_sqrt=1, res=8589934593, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934597] [L161] COND TRUE !isinf_double(res) [L162] reach_error() VAL [one_sqrt=1, res=8589934593, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934597] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 6 SDslu, 76 SDs, 0 SdLazy, 81 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 1701 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...