/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1012b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:05:18,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:18,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:18,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:18,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:18,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:18,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:18,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:18,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:18,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:18,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:18,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:18,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:18,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:18,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:18,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:18,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:18,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:18,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:18,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:18,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:18,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:18,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:18,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:18,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 22:05:18,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 22:05:18,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 22:05:18,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 22:05:18,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 22:05:18,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 22:05:18,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 22:05:18,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 22:05:18,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 22:05:18,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 22:05:18,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 22:05:18,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 22:05:18,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 22:05:18,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 22:05:18,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:18,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:18,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:18,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:05:18,298 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:18,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:18,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:18,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:18,300 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:18,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:18,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:18,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:18,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:18,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:18,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:18,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:18,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:18,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:18,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:18,302 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:18,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:18,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:18,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:18,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:18,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:18,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:18,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:18,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:18,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:18,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:18,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:18,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:18,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:18,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:18,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:18,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:18,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:18,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:18,623 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:18,624 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1012b.c [2020-07-17 22:05:18,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb4ec5ff/d5b7c12ea52a445f84758ca3a3f96512/FLAGf4703a949 [2020-07-17 22:05:19,176 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:19,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1012b.c [2020-07-17 22:05:19,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb4ec5ff/d5b7c12ea52a445f84758ca3a3f96512/FLAGf4703a949 [2020-07-17 22:05:19,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb4ec5ff/d5b7c12ea52a445f84758ca3a3f96512 [2020-07-17 22:05:19,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:19,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:19,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:19,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:19,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:19,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cb6dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19, skipping insertion in model container [2020-07-17 22:05:19,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:19,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:19,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:19,776 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:19,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:19,828 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:19,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19 WrapperNode [2020-07-17 22:05:19,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:19,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:19,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:19,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:19,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (1/1) ... [2020-07-17 22:05:19,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:19,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:19,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:19,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:19,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (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 [2020-07-17 22:05:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-07-17 22:05:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-17 22:05:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-07-17 22:05:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-17 22:05:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:20,382 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:20,383 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:05:20,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:20 BoogieIcfgContainer [2020-07-17 22:05:20,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:20,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:20,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:20,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:20,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:19" (1/3) ... [2020-07-17 22:05:20,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d872fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:20, skipping insertion in model container [2020-07-17 22:05:20,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:19" (2/3) ... [2020-07-17 22:05:20,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d872fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:20, skipping insertion in model container [2020-07-17 22:05:20,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:20" (3/3) ... [2020-07-17 22:05:20,400 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012b.c [2020-07-17 22:05:20,414 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:20,424 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:20,441 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:20,468 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:20,468 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:20,468 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:20,468 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:20,468 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:20,469 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:20,469 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:20,469 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:20,490 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-17 22:05:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-17 22:05:20,497 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:20,498 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] [2020-07-17 22:05:20,498 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:20,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:20,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1978899259, now seen corresponding path program 1 times [2020-07-17 22:05:20,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:20,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65627369] [2020-07-17 22:05:20,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:20,746 INFO L280 TraceCheckUtils]: 0: Hoare triple {50#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {34#true} is VALID [2020-07-17 22:05:20,747 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:05:20,748 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #59#return; {34#true} is VALID [2020-07-17 22:05:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:20,786 INFO L280 TraceCheckUtils]: 0: Hoare triple {51#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~ix~0; {34#true} is VALID [2020-07-17 22:05:20,788 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume !true; {35#false} is VALID [2020-07-17 22:05:20,788 INFO L280 TraceCheckUtils]: 2: Hoare triple {35#false} assume !true; {35#false} is VALID [2020-07-17 22:05:20,789 INFO L280 TraceCheckUtils]: 3: Hoare triple {35#false} #res := ~x; {35#false} is VALID [2020-07-17 22:05:20,789 INFO L280 TraceCheckUtils]: 4: Hoare triple {35#false} assume true; {35#false} is VALID [2020-07-17 22:05:20,789 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {35#false} {34#true} #63#return; {35#false} is VALID [2020-07-17 22:05:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:20,801 INFO L280 TraceCheckUtils]: 0: Hoare triple {51#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~ix~1; {34#true} is VALID [2020-07-17 22:05:20,803 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume !true; {35#false} is VALID [2020-07-17 22:05:20,803 INFO L280 TraceCheckUtils]: 2: Hoare triple {35#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647);#res := (if 2139095040 == ~ix~1 then 1 else 0); {35#false} is VALID [2020-07-17 22:05:20,804 INFO L280 TraceCheckUtils]: 3: Hoare triple {35#false} assume true; {35#false} is VALID [2020-07-17 22:05:20,805 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {35#false} {35#false} #65#return; {35#false} is VALID [2020-07-17 22:05:20,807 INFO L263 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {50#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:05:20,807 INFO L280 TraceCheckUtils]: 1: Hoare triple {50#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {34#true} is VALID [2020-07-17 22:05:20,808 INFO L280 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-17 22:05:20,808 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #59#return; {34#true} is VALID [2020-07-17 22:05:20,809 INFO L263 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret8 := main(); {34#true} is VALID [2020-07-17 22:05:20,810 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0); {34#true} is VALID [2020-07-17 22:05:20,812 INFO L263 TraceCheckUtils]: 6: Hoare triple {34#true} call #t~ret6 := fabs_float(~x~0); {51#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:20,812 INFO L280 TraceCheckUtils]: 7: Hoare triple {51#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~ix~0; {34#true} is VALID [2020-07-17 22:05:20,813 INFO L280 TraceCheckUtils]: 8: Hoare triple {34#true} assume !true; {35#false} is VALID [2020-07-17 22:05:20,814 INFO L280 TraceCheckUtils]: 9: Hoare triple {35#false} assume !true; {35#false} is VALID [2020-07-17 22:05:20,814 INFO L280 TraceCheckUtils]: 10: Hoare triple {35#false} #res := ~x; {35#false} is VALID [2020-07-17 22:05:20,815 INFO L280 TraceCheckUtils]: 11: Hoare triple {35#false} assume true; {35#false} is VALID [2020-07-17 22:05:20,815 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {35#false} {34#true} #63#return; {35#false} is VALID [2020-07-17 22:05:20,815 INFO L280 TraceCheckUtils]: 13: Hoare triple {35#false} ~res~0 := #t~ret6;havoc #t~ret6; {35#false} is VALID [2020-07-17 22:05:20,816 INFO L263 TraceCheckUtils]: 14: Hoare triple {35#false} call #t~ret7 := isinf_float(~res~0); {51#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:20,816 INFO L280 TraceCheckUtils]: 15: Hoare triple {51#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~ix~1; {34#true} is VALID [2020-07-17 22:05:20,817 INFO L280 TraceCheckUtils]: 16: Hoare triple {34#true} assume !true; {35#false} is VALID [2020-07-17 22:05:20,818 INFO L280 TraceCheckUtils]: 17: Hoare triple {35#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647);#res := (if 2139095040 == ~ix~1 then 1 else 0); {35#false} is VALID [2020-07-17 22:05:20,818 INFO L280 TraceCheckUtils]: 18: Hoare triple {35#false} assume true; {35#false} is VALID [2020-07-17 22:05:20,819 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {35#false} {35#false} #65#return; {35#false} is VALID [2020-07-17 22:05:20,819 INFO L280 TraceCheckUtils]: 20: Hoare triple {35#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {35#false} is VALID [2020-07-17 22:05:20,820 INFO L280 TraceCheckUtils]: 21: Hoare triple {35#false} assume 0 == #t~ret7;havoc #t~ret7; {35#false} is VALID [2020-07-17 22:05:20,820 INFO L280 TraceCheckUtils]: 22: Hoare triple {35#false} assume !false; {35#false} is VALID [2020-07-17 22:05:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:05:20,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65627369] [2020-07-17 22:05:20,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:20,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:20,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872284317] [2020-07-17 22:05:20,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-07-17 22:05:20,838 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:20,842 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:20,899 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:20,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:20,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:20,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:20,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:20,913 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2020-07-17 22:05:21,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:21,232 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2020-07-17 22:05:21,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:21,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-07-17 22:05:21,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:21,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2020-07-17 22:05:21,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2020-07-17 22:05:21,255 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 67 transitions. [2020-07-17 22:05:21,405 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:21,430 INFO L225 Difference]: With dead ends: 54 [2020-07-17 22:05:21,430 INFO L226 Difference]: Without dead ends: 27 [2020-07-17 22:05:21,436 INFO L675 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 [2020-07-17 22:05:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-17 22:05:21,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-17 22:05:21,502 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:21,503 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2020-07-17 22:05:21,504 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-17 22:05:21,504 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-17 22:05:21,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:21,508 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-07-17 22:05:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-07-17 22:05:21,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:21,509 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:21,510 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-17 22:05:21,510 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-17 22:05:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:21,514 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-07-17 22:05:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-07-17 22:05:21,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:21,515 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:21,515 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:21,516 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:21,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-17 22:05:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-07-17 22:05:21,520 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2020-07-17 22:05:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:21,521 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-07-17 22:05:21,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:21,521 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-07-17 22:05:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 22:05:21,522 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:21,522 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] [2020-07-17 22:05:21,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:21,523 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:21,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:21,524 INFO L82 PathProgramCache]: Analyzing trace with hash 749195959, now seen corresponding path program 1 times [2020-07-17 22:05:21,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:21,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916876564] [2020-07-17 22:05:21,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:21,737 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:21,737 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:21,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:21,769 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:21,769 WARN L170 areAnnotationChecker]: isinf_floatENTRY has no Hoare annotation [2020-07-17 22:05:21,769 WARN L170 areAnnotationChecker]: fabs_floatENTRY has no Hoare annotation [2020-07-17 22:05:21,769 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:21,770 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:21,770 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:21,770 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:21,770 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-17 22:05:21,770 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-17 22:05:21,770 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-17 22:05:21,770 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-17 22:05:21,771 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:21,771 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:21,771 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-17 22:05:21,771 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-17 22:05:21,771 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:21,771 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-17 22:05:21,772 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-17 22:05:21,772 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:05:21,772 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:05:21,772 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:05:21,772 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-17 22:05:21,772 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-17 22:05:21,772 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:21,773 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-17 22:05:21,773 WARN L170 areAnnotationChecker]: isinf_floatFINAL has no Hoare annotation [2020-07-17 22:05:21,773 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:05:21,773 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-17 22:05:21,773 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-17 22:05:21,773 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-17 22:05:21,773 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-17 22:05:21,774 WARN L170 areAnnotationChecker]: isinf_floatEXIT has no Hoare annotation [2020-07-17 22:05:21,774 WARN L170 areAnnotationChecker]: fabs_floatFINAL has no Hoare annotation [2020-07-17 22:05:21,774 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2020-07-17 22:05:21,774 WARN L170 areAnnotationChecker]: fabs_floatEXIT has no Hoare annotation [2020-07-17 22:05:21,774 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:21,774 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:21,775 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-17 22:05:21,775 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-17 22:05:21,775 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:21,775 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:21,775 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:05:21,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:21 BoogieIcfgContainer [2020-07-17 22:05:21,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:21,782 INFO L168 Benchmark]: Toolchain (without parser) took 2242.44 ms. Allocated memory was 142.6 MB in the beginning and 228.1 MB in the end (delta: 85.5 MB). Free memory was 100.5 MB in the beginning and 164.3 MB in the end (delta: -63.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:21,783 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 22:05:21,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.40 ms. Allocated memory is still 142.6 MB. Free memory was 100.1 MB in the beginning and 88.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:21,785 INFO L168 Benchmark]: Boogie Preprocessor took 136.68 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 88.9 MB in the beginning and 177.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:21,786 INFO L168 Benchmark]: RCFGBuilder took 422.61 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 152.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:21,787 INFO L168 Benchmark]: TraceAbstraction took 1387.45 ms. Allocated memory was 199.8 MB in the beginning and 228.1 MB in the end (delta: 28.3 MB). Free memory was 152.2 MB in the beginning and 164.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:21,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 288.40 ms. Allocated memory is still 142.6 MB. Free memory was 100.1 MB in the beginning and 88.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.68 ms. Allocated memory was 142.6 MB in the beginning and 199.8 MB in the end (delta: 57.1 MB). Free memory was 88.9 MB in the beginning and 177.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.61 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 152.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1387.45 ms. Allocated memory was 199.8 MB in the beginning and 228.1 MB in the end (delta: 28.3 MB). Free memory was 152.2 MB in the beginning and 164.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 51]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L46] float x = -1.0f / 0.0f; [L47] CALL, EXPR fabs_float(x) VAL [\old(x)=8589934599] [L12] __uint32_t ix; VAL [\old(x)=8589934599, x=8589934599] [L14] ieee_float_shape_type gf_u; [L15] gf_u.value = (x) [L16] EXPR gf_u.word [L16] (ix) = gf_u.word [L19] ieee_float_shape_type sf_u; [L20] sf_u.word = (ix & 0x7fffffff) [L21] EXPR sf_u.value [L21] (x) = sf_u.value [L23] return x; VAL [\old(x)=8589934599, \result=8589934597, ix=4, x=8589934597] [L47] RET, EXPR fabs_float(x) VAL [fabs_float(x)=8589934597, x=8589934599] [L47] float res = fabs_float(x); [L50] CALL, EXPR isinf_float(res) VAL [\old(x)=8589934597] [L28] __int32_t ix; VAL [\old(x)=8589934597, x=8589934597] [L30] ieee_float_shape_type gf_u; [L31] gf_u.value = (x) [L32] EXPR gf_u.word [L32] (ix) = gf_u.word [L34] ix &= 0x7fffffff [L35] return ((ix) == 0x7f800000L); VAL [\old(x)=8589934597, \result=0, ix=0, x=8589934597] [L50] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=8589934597, x=8589934599] [L50] COND TRUE !isinf_float(res) [L51] __VERIFIER_error() VAL [res=8589934597, x=8589934599] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 19 SDslu, 5 SDs, 0 SdLazy, 29 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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=31occurred 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1210 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...