/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/float_req_bl_1211b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:36:20,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:36:20,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:36:20,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:36:20,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:36:20,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:36:20,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:36:20,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:36:20,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:36:20,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:36:20,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:36:20,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:36:20,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:36:20,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:36:20,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:36:20,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:36:20,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:36:20,526 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 22:36:20,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:36:20,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:36:20,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:36:20,540 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:36:20,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:36:20,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:36:20,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:36:20,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:36:20,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:36:20,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:36:20,541 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:36:20,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:36:20,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:36:20,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:36:20,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:36:20,542 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:36:20,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:36:20,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:36:20,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:36:20,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:36:20,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:36:20,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:36:20,544 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:36:20,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:36:20,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:36:20,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:36:20,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:36:20,923 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:36:20,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c [2021-02-23 22:36:20,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d999cb71d/d81f51f3c0b242b19cf73af5fdc79a1e/FLAG346e116ff [2021-02-23 22:36:21,588 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:36:21,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c [2021-02-23 22:36:21,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d999cb71d/d81f51f3c0b242b19cf73af5fdc79a1e/FLAG346e116ff [2021-02-23 22:36:21,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d999cb71d/d81f51f3c0b242b19cf73af5fdc79a1e [2021-02-23 22:36:21,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:36:21,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:36:21,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:36:21,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:36:21,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:36:21,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:36:21" (1/1) ... [2021-02-23 22:36:21,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8b1fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:21, skipping insertion in model container [2021-02-23 22:36:21,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:36:21" (1/1) ... [2021-02-23 22:36:22,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:36:22,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:36:22,234 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/float_req_bl_1211b.c[2579,2592] [2021-02-23 22:36:22,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:36:22,260 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:36:22,339 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/float_req_bl_1211b.c[2579,2592] [2021-02-23 22:36:22,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:36:22,378 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:36:22,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22 WrapperNode [2021-02-23 22:36:22,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:36:22,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:36:22,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:36:22,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:36:22,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (1/1) ... [2021-02-23 22:36:22,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (1/1) ... [2021-02-23 22:36:22,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (1/1) ... [2021-02-23 22:36:22,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (1/1) ... [2021-02-23 22:36:22,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (1/1) ... [2021-02-23 22:36:22,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (1/1) ... [2021-02-23 22:36:22,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (1/1) ... [2021-02-23 22:36:22,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:36:22,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:36:22,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:36:22,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:36:22,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (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 22:36:22,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:36:22,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:36:22,571 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:36:22,571 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2021-02-23 22:36:22,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2021-02-23 22:36:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2021-02-23 22:36:22,572 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:36:22,572 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:36:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:36:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:36:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:36:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2021-02-23 22:36:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2021-02-23 22:36:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-23 22:36:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:36:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:36:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:36:22,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-23 22:36:22,575 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2021-02-23 22:36:22,575 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2021-02-23 22:36:22,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:36:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-23 22:36:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:36:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:36:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:36:23,276 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:36:23,276 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-02-23 22:36:23,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:36:23 BoogieIcfgContainer [2021-02-23 22:36:23,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:36:23,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:36:23,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:36:23,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:36:23,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:36:21" (1/3) ... [2021-02-23 22:36:23,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369c083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:36:23, skipping insertion in model container [2021-02-23 22:36:23,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:36:22" (2/3) ... [2021-02-23 22:36:23,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369c083f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:36:23, skipping insertion in model container [2021-02-23 22:36:23,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:36:23" (3/3) ... [2021-02-23 22:36:23,289 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.c [2021-02-23 22:36:23,296 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:36:23,302 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:36:23,322 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:36:23,348 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:36:23,349 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:36:23,349 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:36:23,349 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:36:23,349 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:36:23,349 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:36:23,350 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:36:23,350 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:36:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2021-02-23 22:36:23,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 22:36:23,384 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:36:23,385 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] [2021-02-23 22:36:23,386 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:36:23,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:36:23,392 INFO L82 PathProgramCache]: Analyzing trace with hash 392038598, now seen corresponding path program 1 times [2021-02-23 22:36:23,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:36:23,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669670812] [2021-02-23 22:36:23,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:36:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:23,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:23,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:23,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:23,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:23,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:36:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:23,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:23,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-23 22:36:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:23,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:23,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:23,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:23,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:23,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-23 22:36:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:23,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:23,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:23,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:23,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:23,822 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 22:36:23,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669670812] [2021-02-23 22:36:23,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:36:23,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:36:23,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967985593] [2021-02-23 22:36:23,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:36:23,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:36:23,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:36:23,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:36:23,846 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 4 states. [2021-02-23 22:36:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:36:24,672 INFO L93 Difference]: Finished difference Result 292 states and 340 transitions. [2021-02-23 22:36:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 22:36:24,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2021-02-23 22:36:24,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:36:24,697 INFO L225 Difference]: With dead ends: 292 [2021-02-23 22:36:24,697 INFO L226 Difference]: Without dead ends: 144 [2021-02-23 22:36:24,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 22:36:24,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-02-23 22:36:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-02-23 22:36:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-02-23 22:36:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2021-02-23 22:36:24,774 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 52 [2021-02-23 22:36:24,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:36:24,774 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2021-02-23 22:36:24,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:36:24,775 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2021-02-23 22:36:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-02-23 22:36:24,778 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:36:24,779 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] [2021-02-23 22:36:24,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:36:24,779 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:36:24,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:36:24,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2115119569, now seen corresponding path program 1 times [2021-02-23 22:36:24,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:36:24,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688677262] [2021-02-23 22:36:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:36:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:24,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:24,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:24,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:24,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-23 22:36:24,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:24,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:24,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:36:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:24,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:24,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:24,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-23 22:36:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:24,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:24,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:24,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-02-23 22:36:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:36:25,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:36:25,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:36:25,021 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 22:36:25,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688677262] [2021-02-23 22:36:25,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:36:25,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 22:36:25,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32178945] [2021-02-23 22:36:25,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 22:36:25,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:36:25,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 22:36:25,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 22:36:25,025 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 5 states. [2021-02-23 22:36:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:36:25,537 INFO L93 Difference]: Finished difference Result 152 states and 155 transitions. [2021-02-23 22:36:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:36:25,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2021-02-23 22:36:25,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:36:25,540 INFO L225 Difference]: With dead ends: 152 [2021-02-23 22:36:25,541 INFO L226 Difference]: Without dead ends: 144 [2021-02-23 22:36:25,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 22:36:25,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-02-23 22:36:25,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-02-23 22:36:25,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-02-23 22:36:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 147 transitions. [2021-02-23 22:36:25,593 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 147 transitions. Word has length 73 [2021-02-23 22:36:25,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:36:25,593 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 147 transitions. [2021-02-23 22:36:25,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 22:36:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 147 transitions. [2021-02-23 22:36:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-02-23 22:36:25,597 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:36:25,597 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] [2021-02-23 22:36:25,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:36:25,597 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:36:25,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:36:25,598 INFO L82 PathProgramCache]: Analyzing trace with hash 370045270, now seen corresponding path program 1 times [2021-02-23 22:36:25,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:36:25,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012295497] [2021-02-23 22:36:25,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:36:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:36:25,655 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:36:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:36:25,715 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:36:25,756 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:36:25,756 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:36:25,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:36:25,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:36:25 BoogieIcfgContainer [2021-02-23 22:36:25,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:36:25,824 INFO L168 Benchmark]: Toolchain (without parser) took 3854.14 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 129.1 MB in the beginning and 149.7 MB in the end (delta: -20.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:25,824 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:36:25,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.75 ms. Allocated memory is still 152.0 MB. Free memory was 128.0 MB in the beginning and 116.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:25,826 INFO L168 Benchmark]: Boogie Preprocessor took 61.38 ms. Allocated memory is still 152.0 MB. Free memory was 116.8 MB in the beginning and 114.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:25,827 INFO L168 Benchmark]: RCFGBuilder took 834.45 ms. Allocated memory is still 152.0 MB. Free memory was 114.6 MB in the beginning and 114.7 MB in the end (delta: -48.5 kB). Peak memory consumption was 20.4 MB. Max. memory is 8.0 GB. [2021-02-23 22:36:25,827 INFO L168 Benchmark]: TraceAbstraction took 2541.05 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 114.2 MB in the beginning and 149.7 MB in the end (delta: -35.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:36:25,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 390.75 ms. Allocated memory is still 152.0 MB. Free memory was 128.0 MB in the beginning and 116.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.38 ms. Allocated memory is still 152.0 MB. Free memory was 116.8 MB in the beginning and 114.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 834.45 ms. Allocated memory is still 152.0 MB. Free memory was 114.6 MB in the beginning and 114.7 MB in the end (delta: -48.5 kB). Peak memory consumption was 20.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2541.05 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 114.2 MB in the beginning and 149.7 MB in the end (delta: -35.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 112]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106, overapproximation of bitwiseAnd at line 95. Possible FailurePath: [L14] static const float one_modf = 1.0; VAL [\old(one_modf)=4294967302, one_modf=1] [L106] float x = -1.0f / 0.0f; VAL [one_modf=1] [L107] float iptr = __VERIFIER_nondet_float(); VAL [__VERIFIER_nondet_float()=4294967303, iptr={8:0}, one_modf=1] [L108] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=4294967300, iptr={8:0}, one_modf=1] [L17] __int32_t i0, j0; VAL [\old(x)=4294967300, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967300] [L18] __uint32_t i; VAL [\old(x)=4294967300, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967300] [L20] ieee_float_shape_type gf_u; VAL [\old(x)=4294967300, gf_u={9:0}, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967300] [L21] gf_u.value = (x) VAL [\old(x)=4294967300, gf_u={9:0}, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967300] [L22] EXPR gf_u.word VAL [\old(x)=4294967300, gf_u={9:0}, gf_u.word=4294967295, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967300] [L22] (i0) = gf_u.word VAL [\old(x)=4294967300, gf_u={9:0}, gf_u.word=4294967295, i0=-1, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967300] [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967300] [L25] COND TRUE j0 < 23 VAL [\old(x)=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=4294967300] [L26] COND TRUE j0 < 0 VAL [\old(x)=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=4294967300] [L28] ieee_float_shape_type sf_u; VAL [\old(x)=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, x=4294967300] [L29] sf_u.word = (i0 & 0x80000000) VAL [\old(x)=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, x=4294967300] [L30] EXPR sf_u.value VAL [\old(x)=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, sf_u.value=4294967297, x=4294967300] [L30] (*iptr) = sf_u.value VAL [\old(x)=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, sf_u.value=4294967297, x=4294967300] [L32] return x; VAL [\old(x)=4294967300, \result=4294967300, i0=-1, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=4294967300] [L108] RET, EXPR modf_float(x, &iptr) VAL [iptr={8:0}, modf_float(x, &iptr)=4294967300, one_modf=1, x=4294967300] [L108] float res = modf_float(x, &iptr); VAL [iptr={8:0}, modf_float(x, &iptr)=4294967300, one_modf=1, res=4294967300, x=4294967300] [L111] EXPR \read(iptr) VAL [\read(iptr)=4294967297, iptr={8:0}, one_modf=1, res=4294967300, x=4294967300] [L111] CALL, EXPR isinf_float(iptr) VAL [\old(x)=4294967297, one_modf=1] [L89] __int32_t ix; VAL [\old(x)=4294967297, one_modf=1, x=4294967297] [L91] ieee_float_shape_type gf_u; VAL [\old(x)=4294967297, gf_u={3:0}, one_modf=1, x=4294967297] [L92] gf_u.value = (x) VAL [\old(x)=4294967297, gf_u={3:0}, one_modf=1, x=4294967297] [L93] EXPR gf_u.word VAL [\old(x)=4294967297, gf_u={3:0}, gf_u.word=0, one_modf=1, x=4294967297] [L93] (ix) = gf_u.word VAL [\old(x)=4294967297, gf_u={3:0}, gf_u.word=0, ix=0, one_modf=1, x=4294967297] [L95] ix &= 0x7fffffff VAL [\old(x)=4294967297, one_modf=1, x=4294967297] [L96] return ((ix) == 0x7f800000L); VAL [\old(x)=4294967297, \result=1, ix=2139095040, one_modf=1, x=4294967297] [L111] RET, EXPR isinf_float(iptr) VAL [\read(iptr)=4294967297, iptr={8:0}, isinf_float(iptr)=1, one_modf=1, res=4294967300, x=4294967300] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=4294967297, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967300, x=4294967300] [L111] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [\read(iptr)=4294967297, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967300, res == -0.0f && __signbit_float(res) == 1=0, x=4294967300] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=4294967297, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967300, res == -0.0f && __signbit_float(res) == 1=0, x=4294967300] [L111] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=4294967297, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=4294967300, res == -0.0f && __signbit_float(res) == 1=0, x=4294967300] [L112] reach_error() VAL [iptr={8:0}, one_modf=1, res=4294967300, x=4294967300] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 162 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 298 SDtfs, 42 SDslu, 309 SDs, 0 SdLazy, 402 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 14868 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...