/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:34:43,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:34:43,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:34:43,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:34:43,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:34:43,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:34:43,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:34:43,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:34:43,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:34:43,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:34:43,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:34:43,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:34:43,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:34:43,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:34:43,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:34:43,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:34:43,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:34:43,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:34:43,366 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:34:43,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:34:43,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:34:43,371 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:34:43,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:34:43,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:34:43,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:34:43,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:34:43,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:34:43,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:34:43,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:34:43,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:34:43,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:34:43,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:34:43,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:34:43,374 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:34:43,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:34:43,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:34:43,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:34:43,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:34:43,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:34:43,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:34:43,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:34:43,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:34:43,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:34:43,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:34:43,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:34:43,816 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:34:43,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2021-02-23 22:34:43,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc133e28e/325bb1a4aa884dc79f392c76547509c5/FLAG7d60a12d8 [2021-02-23 22:34:44,513 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:34:44,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2021-02-23 22:34:44,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc133e28e/325bb1a4aa884dc79f392c76547509c5/FLAG7d60a12d8 [2021-02-23 22:34:44,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc133e28e/325bb1a4aa884dc79f392c76547509c5 [2021-02-23 22:34:44,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:34:44,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:34:44,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:34:44,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:34:44,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:34:44,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eabb1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44, skipping insertion in model container [2021-02-23 22:34:44,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:34:44,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:34:45,302 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_1131b.c[4119,4132] [2021-02-23 22:34:45,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:34:45,324 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:34:45,373 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_1131b.c[4119,4132] [2021-02-23 22:34:45,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:34:45,400 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:34:45,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45 WrapperNode [2021-02-23 22:34:45,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:34:45,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:34:45,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:34:45,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:34:45,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (1/1) ... [2021-02-23 22:34:45,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (1/1) ... [2021-02-23 22:34:45,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (1/1) ... [2021-02-23 22:34:45,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (1/1) ... [2021-02-23 22:34:45,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (1/1) ... [2021-02-23 22:34:45,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (1/1) ... [2021-02-23 22:34:45,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (1/1) ... [2021-02-23 22:34:45,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:34:45,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:34:45,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:34:45,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:34:45,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (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 [2021-02-23 22:34:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:34:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:34:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:34:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2021-02-23 22:34:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2021-02-23 22:34:45,572 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:34:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:34:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:34:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:34:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:34:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-02-23 22:34:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2021-02-23 22:34:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-23 22:34:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:34:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:34:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-23 22:34:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:34:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2021-02-23 22:34:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:34:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:34:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:34:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-23 22:34:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:34:46,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:34:46,262 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-02-23 22:34:46,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:34:46 BoogieIcfgContainer [2021-02-23 22:34:46,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:34:46,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:34:46,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:34:46,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:34:46,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:34:44" (1/3) ... [2021-02-23 22:34:46,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e164d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:34:46, skipping insertion in model container [2021-02-23 22:34:46,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:45" (2/3) ... [2021-02-23 22:34:46,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e164d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:34:46, skipping insertion in model container [2021-02-23 22:34:46,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:34:46" (3/3) ... [2021-02-23 22:34:46,281 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2021-02-23 22:34:46,293 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:34:46,299 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:34:46,318 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:34:46,340 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:34:46,341 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:34:46,341 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:34:46,341 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:34:46,341 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:34:46,341 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:34:46,341 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:34:46,342 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:34:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2021-02-23 22:34:46,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-23 22:34:46,373 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:34:46,374 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] [2021-02-23 22:34:46,375 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:34:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:34:46,381 INFO L82 PathProgramCache]: Analyzing trace with hash 2046356497, now seen corresponding path program 1 times [2021-02-23 22:34:46,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:34:46,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073614384] [2021-02-23 22:34:46,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:34:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:46,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:34:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:46,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 22:34:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:46,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 22:34:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:46,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:34:46,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073614384] [2021-02-23 22:34:46,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:34:46,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:34:46,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29763607] [2021-02-23 22:34:46,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:34:46,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:34:46,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:34:46,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:34:46,824 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 4 states. [2021-02-23 22:34:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:34:47,343 INFO L93 Difference]: Finished difference Result 387 states and 476 transitions. [2021-02-23 22:34:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 22:34:47,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2021-02-23 22:34:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:34:47,358 INFO L225 Difference]: With dead ends: 387 [2021-02-23 22:34:47,358 INFO L226 Difference]: Without dead ends: 198 [2021-02-23 22:34:47,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 22:34:47,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-02-23 22:34:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-02-23 22:34:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-02-23 22:34:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 224 transitions. [2021-02-23 22:34:47,455 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 224 transitions. Word has length 56 [2021-02-23 22:34:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:34:47,456 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 224 transitions. [2021-02-23 22:34:47,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:34:47,457 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 224 transitions. [2021-02-23 22:34:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-23 22:34:47,461 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:34:47,461 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] [2021-02-23 22:34:47,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:34:47,462 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:34:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:34:47,463 INFO L82 PathProgramCache]: Analyzing trace with hash -622845468, now seen corresponding path program 1 times [2021-02-23 22:34:47,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:34:47,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028595737] [2021-02-23 22:34:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:34:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:34:47,599 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:34:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:34:47,691 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:34:47,760 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:34:47,761 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:34:47,762 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:34:47,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:34:47 BoogieIcfgContainer [2021-02-23 22:34:47,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:34:47,847 INFO L168 Benchmark]: Toolchain (without parser) took 2952.58 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 133.7 MB in the beginning and 150.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,848 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:34:47,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.12 ms. Allocated memory is still 158.3 MB. Free memory was 132.7 MB in the beginning and 119.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,850 INFO L168 Benchmark]: Boogie Preprocessor took 59.34 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 117.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,850 INFO L168 Benchmark]: RCFGBuilder took 801.88 ms. Allocated memory is still 158.3 MB. Free memory was 117.2 MB in the beginning and 106.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,851 INFO L168 Benchmark]: TraceAbstraction took 1576.80 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 106.1 MB in the beginning and 150.5 MB in the end (delta: -44.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:34:47,855 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 158.3 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 490.12 ms. Allocated memory is still 158.3 MB. Free memory was 132.7 MB in the beginning and 119.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.34 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 117.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 801.88 ms. Allocated memory is still 158.3 MB. Free memory was 117.2 MB in the beginning and 106.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1576.80 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 106.1 MB in the beginning and 150.5 MB in the end (delta: -44.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 188]: 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 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, }; VAL [\old(one_fmod)=9223372034706243601, \old(Zero_fmod)=9223372034706243599, \old(Zero_fmod)=9223372034706243590, one_fmod=1, Zero_fmod={9:0}] [L179] double y = -1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={9:0}] [L180] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372034706243593, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L182] CALL isfinite_double(x) VAL [\old(x)=9223372034706243593, one_fmod=1, Zero_fmod={9:0}] [L163] __int32_t hx; VAL [\old(x)=9223372034706243593, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L165] ieee_double_shape_type gh_u; VAL [\old(x)=9223372034706243593, gh_u={10:0}, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L166] gh_u.value = (x) VAL [\old(x)=9223372034706243593, gh_u={10:0}, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L167] EXPR gh_u.parts.msw VAL [\old(x)=9223372034706243593, gh_u={10:0}, gh_u.parts.msw=0, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L167] (hx) = gh_u.parts.msw VAL [\old(x)=9223372034706243593, gh_u={10:0}, gh_u.parts.msw=0, hx=0, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243593, \result=-2, hx=0, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L182] RET isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L182] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L184] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, one_fmod=1, Zero_fmod={9:0}] [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L24] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L27] ieee_double_shape_type ew_u; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L28] ew_u.value = (x) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L29] EXPR ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.msw=8589934589, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L29] (hx) = ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.msw=8589934589, hx=-3, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L30] EXPR ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.lsw=9223372034706243591, hx=-3, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L30] (lx) = ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.lsw=9223372034706243591, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L33] ieee_double_shape_type ew_u; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L34] ew_u.value = (y) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L35] EXPR ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.msw=4294967292, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L35] (hy) = ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.msw=4294967292, hx=-3, hy=-4, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L36] EXPR ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.lsw=9223372034706243586, hx=-3, hy=-4, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L36] (ly) = ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.lsw=9223372034706243586, hx=-3, hy=-4, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L38] sx = hx & 0x80000000 VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hx=-3, hy=-4, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L39] hx ^= sx VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hy=-4, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L40] hy &= 0x7fffffff VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hx=2146435072, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L44] return (x * y) / (x * y); VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hx=2146435072, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L184] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243588, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L184] double res = fmod_double(x, y); VAL [fmod_double(x, y)=9223372034706243588, one_fmod=1, res=9223372034706243588, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L187] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243588, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L188] reach_error() VAL [one_fmod=1, res=9223372034706243588, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 208 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 228 SDtfs, 37 SDslu, 175 SDs, 0 SdLazy, 245 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 6490 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...