/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:24:58,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:24:58,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:24:58,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:24:58,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:24:58,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:24:58,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:24:58,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:24:58,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:24:58,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:24:58,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:24:58,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:24:58,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:24:58,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:24:58,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:24:58,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:24:58,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:24:58,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:24:58,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:24:58,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:24:58,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:24:58,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:24:58,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:24:58,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:24:58,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:24:58,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:24:58,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:24:58,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:24:58,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:24:58,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:24:58,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:24:58,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:24:58,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:24:58,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:24:58,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:24:58,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:24:58,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:24:58,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:24:58,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:24:58,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:24:58,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:24:58,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:24:58,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:24:58,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:24:58,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:24:58,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:24:58,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:24:58,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:24:58,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:24:58,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:24:58,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:24:58,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:24:58,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:24:58,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:24:58,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:24:58,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:24:58,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:24:58,279 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:24:58,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:24:58,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:24:58,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:24:58,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:24:58,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:24:58,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:24:58,280 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:24:58,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:24:58,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:24:58,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:24:58,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:24:58,761 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:24:58,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-23 20:24:58,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5995fd0f9/f905df7ce10d49dc97f55e42a6886284/FLAGcde1ed3c2 [2020-10-23 20:24:59,442 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:24:59,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-23 20:24:59,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5995fd0f9/f905df7ce10d49dc97f55e42a6886284/FLAGcde1ed3c2 [2020-10-23 20:24:59,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5995fd0f9/f905df7ce10d49dc97f55e42a6886284 [2020-10-23 20:24:59,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:24:59,782 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:24:59,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:24:59,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:24:59,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:24:59,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db551b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59, skipping insertion in model container [2020-10-23 20:24:59,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:24:59,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:25:00,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:00,158 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:25:00,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:00,305 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:25:00,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00 WrapperNode [2020-10-23 20:25:00,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:00,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:25:00,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:25:00,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:25:00,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (1/1) ... [2020-10-23 20:25:00,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (1/1) ... [2020-10-23 20:25:00,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (1/1) ... [2020-10-23 20:25:00,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (1/1) ... [2020-10-23 20:25:00,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (1/1) ... [2020-10-23 20:25:00,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (1/1) ... [2020-10-23 20:25:00,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (1/1) ... [2020-10-23 20:25:00,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:25:00,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:25:00,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:25:00,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:25:00,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (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 20:25:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:25:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:25:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:25:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-23 20:25:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-23 20:25:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:25:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:25:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:25:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:25:00,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:25:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 20:25:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-23 20:25:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 20:25:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:25:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:25:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 20:25:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:25:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-23 20:25:00,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:25:00,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:25:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:25:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-23 20:25:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:25:01,532 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:25:01,532 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-23 20:25:01,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:01 BoogieIcfgContainer [2020-10-23 20:25:01,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:25:01,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:25:01,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:25:01,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:25:01,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:24:59" (1/3) ... [2020-10-23 20:25:01,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5080e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:01, skipping insertion in model container [2020-10-23 20:25:01,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:00" (2/3) ... [2020-10-23 20:25:01,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5080e55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:01, skipping insertion in model container [2020-10-23 20:25:01,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:01" (3/3) ... [2020-10-23 20:25:01,552 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-10-23 20:25:01,567 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:25:01,573 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:25:01,590 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:25:01,632 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:25:01,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:25:01,632 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:25:01,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:25:01,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:25:01,633 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:25:01,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:25:01,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:25:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-23 20:25:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-23 20:25:01,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:01,689 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, 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 20:25:01,689 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:01,699 INFO L82 PathProgramCache]: Analyzing trace with hash 502418348, now seen corresponding path program 1 times [2020-10-23 20:25:01,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:01,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28640131] [2020-10-23 20:25:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:01,798 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:02,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:02,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:25:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:02,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:25:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:02,114 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 20:25:02,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28640131] [2020-10-23 20:25:02,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:02,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:25:02,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652032309] [2020-10-23 20:25:02,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:25:02,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:02,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:25:02,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:25:02,171 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 4 states. [2020-10-23 20:25:02,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:02,849 INFO L93 Difference]: Finished difference Result 423 states and 513 transitions. [2020-10-23 20:25:02,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:25:02,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-23 20:25:02,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:02,864 INFO L225 Difference]: With dead ends: 423 [2020-10-23 20:25:02,865 INFO L226 Difference]: Without dead ends: 215 [2020-10-23 20:25:02,871 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 20:25:02,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-23 20:25:02,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-10-23 20:25:02,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-23 20:25:02,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 241 transitions. [2020-10-23 20:25:02,948 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 241 transitions. Word has length 57 [2020-10-23 20:25:02,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:02,948 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 241 transitions. [2020-10-23 20:25:02,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:25:02,949 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 241 transitions. [2020-10-23 20:25:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-23 20:25:02,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:02,957 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, 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, 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 20:25:02,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:25:02,958 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:02,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:02,962 INFO L82 PathProgramCache]: Analyzing trace with hash -201700463, now seen corresponding path program 1 times [2020-10-23 20:25:02,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:02,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116689352] [2020-10-23 20:25:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:02,973 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:03,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:03,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:03,406 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:25:03,407 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:25:03,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:25:03,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:25:03 BoogieIcfgContainer [2020-10-23 20:25:03,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:25:03,447 INFO L168 Benchmark]: Toolchain (without parser) took 3665.70 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 129.2 MB in the beginning and 149.4 MB in the end (delta: -20.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:03,448 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 125.9 MB in the end (delta: 69.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:03,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.95 ms. Allocated memory is still 152.0 MB. Free memory was 128.5 MB in the beginning and 115.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:03,452 INFO L168 Benchmark]: Boogie Preprocessor took 70.10 ms. Allocated memory is still 152.0 MB. Free memory was 115.1 MB in the beginning and 112.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:03,453 INFO L168 Benchmark]: RCFGBuilder took 1157.17 ms. Allocated memory is still 152.0 MB. Free memory was 112.6 MB in the beginning and 100.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:03,455 INFO L168 Benchmark]: TraceAbstraction took 1900.08 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 100.0 MB in the beginning and 149.4 MB in the end (delta: -49.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:03,465 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 125.9 MB in the end (delta: 69.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 522.95 ms. Allocated memory is still 152.0 MB. Free memory was 128.5 MB in the beginning and 115.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.10 ms. Allocated memory is still 152.0 MB. Free memory was 115.1 MB in the beginning and 112.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1157.17 ms. Allocated memory is still 152.0 MB. Free memory was 112.6 MB in the beginning and 100.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1900.08 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 100.0 MB in the beginning and 149.4 MB in the end (delta: -49.5 MB). There was no memory consumed. 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 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) [L163] __int32_t hx; [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] RET isfinite_double(x) [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); [L184] RET, EXPR fmod_double(x, y) [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x [L188] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1131b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 39 SDslu, 181 SDs, 0 SdLazy, 269 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=224occurred 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: No data available, 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...