/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_1300.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:55:38,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:55:38,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:55:38,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:55:38,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:55:38,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:55:38,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:55:38,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:55:38,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:55:38,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:55:38,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:55:38,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:55:38,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:55:38,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:55:38,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:55:38,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:55:38,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:55:38,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:55:38,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:55:38,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:55:38,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:55:38,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:55:38,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:55:38,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:55:38,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 17:55:38,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:55:38,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:55:38,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:55:38,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 17:55:38,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:55:38,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:55:38,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:55:38,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:55:38,432 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:55:38,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:55:38,433 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:55:38,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:55:38,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:55:38,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:55:38,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:55:38,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:55:38,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:55:38,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:55:38,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:55:38,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:55:38,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:55:38,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:55:38,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:55:38,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:55:38,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:55:38,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:55:38,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:55:38,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:55:38,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:55:38,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:55:38,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:55:38,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:55:38,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:55:38,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:55:38,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:55:38,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:55:38,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:55:38,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:55:38,851 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:55:38,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2020-10-23 17:55:38,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb8b03c3/6319f7c2dca04e9a9d532157c80cfa67/FLAG25dbfc53b [2020-10-23 17:55:39,619 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:55:39,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2020-10-23 17:55:39,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb8b03c3/6319f7c2dca04e9a9d532157c80cfa67/FLAG25dbfc53b [2020-10-23 17:55:39,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cb8b03c3/6319f7c2dca04e9a9d532157c80cfa67 [2020-10-23 17:55:39,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:55:39,965 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:55:39,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:39,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:55:39,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:55:39,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:39" (1/1) ... [2020-10-23 17:55:39,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fafae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:39, skipping insertion in model container [2020-10-23 17:55:39,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:39" (1/1) ... [2020-10-23 17:55:39,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:55:40,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:55:40,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:40,196 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:55:40,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:40,241 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:55:40,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40 WrapperNode [2020-10-23 17:55:40,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:40,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:55:40,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:55:40,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:55:40,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (1/1) ... [2020-10-23 17:55:40,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (1/1) ... [2020-10-23 17:55:40,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (1/1) ... [2020-10-23 17:55:40,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (1/1) ... [2020-10-23 17:55:40,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (1/1) ... [2020-10-23 17:55:40,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (1/1) ... [2020-10-23 17:55:40,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (1/1) ... [2020-10-23 17:55:40,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:55:40,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:55:40,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:55:40,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:55:40,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (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 [2020-10-23 17:55:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:55:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:55:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:55:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-23 17:55:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-23 17:55:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-23 17:55:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:55:40,366 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:55:40,367 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:55:40,367 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:55:40,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:55:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 17:55:40,368 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-23 17:55:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 17:55:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:55:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:55:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-23 17:55:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-23 17:55:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:55:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:55:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:55:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:55:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 17:55:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:55:40,962 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:55:40,963 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-23 17:55:40,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:40 BoogieIcfgContainer [2020-10-23 17:55:40,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:55:40,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:55:40,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:55:40,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:55:40,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:55:39" (1/3) ... [2020-10-23 17:55:40,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25887fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:40, skipping insertion in model container [2020-10-23 17:55:40,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:40" (2/3) ... [2020-10-23 17:55:40,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25887fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:40, skipping insertion in model container [2020-10-23 17:55:40,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:40" (3/3) ... [2020-10-23 17:55:40,978 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2020-10-23 17:55:40,991 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:55:40,998 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 17:55:41,014 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 17:55:41,058 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:55:41,059 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:55:41,059 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:55:41,059 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:55:41,059 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:55:41,059 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:55:41,060 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:55:41,060 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:55:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-23 17:55:41,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-23 17:55:41,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:41,094 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] [2020-10-23 17:55:41,094 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:41,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:41,103 INFO L82 PathProgramCache]: Analyzing trace with hash 396412620, now seen corresponding path program 1 times [2020-10-23 17:55:41,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:41,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705194769] [2020-10-23 17:55:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:55:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:55:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 17:55:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:55:41,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705194769] [2020-10-23 17:55:41,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:55:41,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:55:41,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223302084] [2020-10-23 17:55:41,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:55:41,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:55:41,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:55:41,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:55:41,510 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 4 states. [2020-10-23 17:55:41,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:55:41,740 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2020-10-23 17:55:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:55:41,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-23 17:55:41,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:55:41,751 INFO L225 Difference]: With dead ends: 71 [2020-10-23 17:55:41,751 INFO L226 Difference]: Without dead ends: 33 [2020-10-23 17:55:41,755 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 [2020-10-23 17:55:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-23 17:55:41,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-23 17:55:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-23 17:55:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2020-10-23 17:55:41,800 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 25 [2020-10-23 17:55:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:55:41,800 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2020-10-23 17:55:41,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:55:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2020-10-23 17:55:41,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 17:55:41,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:41,802 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] [2020-10-23 17:55:41,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:55:41,802 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:41,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:41,803 INFO L82 PathProgramCache]: Analyzing trace with hash 556326989, now seen corresponding path program 1 times [2020-10-23 17:55:41,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:41,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378373470] [2020-10-23 17:55:41,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:55:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:55:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:55:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:55:41,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378373470] [2020-10-23 17:55:41,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:55:41,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 17:55:41,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143504177] [2020-10-23 17:55:41,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 17:55:41,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:55:41,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 17:55:41,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-23 17:55:41,998 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 5 states. [2020-10-23 17:55:42,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:55:42,157 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-10-23 17:55:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 17:55:42,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-23 17:55:42,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:55:42,159 INFO L225 Difference]: With dead ends: 46 [2020-10-23 17:55:42,159 INFO L226 Difference]: Without dead ends: 33 [2020-10-23 17:55:42,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:55:42,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-23 17:55:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-23 17:55:42,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-23 17:55:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2020-10-23 17:55:42,171 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 27 [2020-10-23 17:55:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:55:42,171 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2020-10-23 17:55:42,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 17:55:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-10-23 17:55:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-23 17:55:42,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:42,173 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, 1, 1, 1, 1] [2020-10-23 17:55:42,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:55:42,174 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:42,175 INFO L82 PathProgramCache]: Analyzing trace with hash 963784223, now seen corresponding path program 1 times [2020-10-23 17:55:42,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:42,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409351325] [2020-10-23 17:55:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:42,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:42,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:42,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:55:42,408 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:55:42,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 17:55:42,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:55:42 BoogieIcfgContainer [2020-10-23 17:55:42,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:55:42,451 INFO L168 Benchmark]: Toolchain (without parser) took 2490.18 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 124.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:42,452 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 124.0 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:55:42,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.70 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 115.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:42,454 INFO L168 Benchmark]: Boogie Preprocessor took 40.65 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:42,455 INFO L168 Benchmark]: RCFGBuilder took 680.42 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 129.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:42,456 INFO L168 Benchmark]: TraceAbstraction took 1480.08 ms. Allocated memory is still 151.0 MB. Free memory was 128.4 MB in the beginning and 124.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:42,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 124.0 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 272.70 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 115.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.65 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 680.42 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 129.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1480.08 ms. Allocated memory is still 151.0 MB. Free memory was 128.4 MB in the beginning and 124.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of bitwiseAnd at line 42, overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of to_real at line 57. Possible FailurePath: [L52] double x = __VERIFIER_nondet_double(); [L55] CALL, EXPR isinf_double(x) VAL [\old(x)=9223372036853727235] [L19] __int32_t hx, lx; VAL [\old(x)=9223372036853727235, x=9223372036853727235] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=9223372036853727235, \result=0, hx=2146435072, lx=-2, x=9223372036853727235] [L55] RET, EXPR isinf_double(x) VAL [isinf_double(x)=0, x=9223372036853727235] [L55] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, x=9223372036853727235] [L55] CALL, EXPR isnan_double(x) VAL [\old(x)=9223372036853727235] [L33] return x != x; VAL [\old(x)=9223372036853727235, \result=0, x=9223372036853727235] [L55] RET, EXPR isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=9223372036853727235] [L55] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=9223372036853727235] [L55] COND TRUE !isinf_double(x) && !isnan_double(x) [L57] CALL, EXPR isfinite_double(x) VAL [\old(x)=9223372036853727235] [L36] __int32_t hx; VAL [\old(x)=9223372036853727235, x=9223372036853727235] [L38] ieee_double_shape_type gh_u; [L39] gh_u.value = (x) [L40] EXPR gh_u.parts.msw [L40] (hx) = gh_u.parts.msw [L42] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372036853727235, \result=10, hx=-4, x=9223372036853727235] [L57] RET, EXPR isfinite_double(x) VAL [isfinite_double(x)=10, x=9223372036853727235] [L57] double res = isfinite_double(x); [L60] COND TRUE res == 0.0 VAL [x=9223372036853727235] [L61] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1300.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 24 SDslu, 63 SDs, 0 SdLazy, 71 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 3978 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...