/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:24:53,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:24:53,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:24:53,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:24:53,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:24:53,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:24:53,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:24:53,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:24:53,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:24:53,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:24:53,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:24:53,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:24:53,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:24:53,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:24:53,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:24:53,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:24:53,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:24:53,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:24:54,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:24:54,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:24:54,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:24:54,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:24:54,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:24:54,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:24:54,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:24:54,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:24:54,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:24:54,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:24:54,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:24:54,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:24:54,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:24:54,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:24:54,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:24:54,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:24:54,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:24:54,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:24:54,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:24:54,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:24:54,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:24:54,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:24:54,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:24:54,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:24:54,076 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:24:54,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:24:54,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:24:54,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:24:54,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:24:54,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:24:54,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:24:54,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:24:54,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:24:54,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:24:54,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:24:54,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:24:54,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:24:54,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:24:54,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:24:54,085 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:24:54,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:24:54,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:24:54,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:24:54,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:24:54,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:24:54,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:24:54,086 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:24:54,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:24:54,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:24:54,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:24:54,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:24:54,587 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:24:54,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c [2020-10-23 20:24:54,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d025dc6/c347e1400f2742999f81df814705b79a/FLAGccacf9945 [2020-10-23 20:24:55,364 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:24:55,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c [2020-10-23 20:24:55,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d025dc6/c347e1400f2742999f81df814705b79a/FLAGccacf9945 [2020-10-23 20:24:55,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d025dc6/c347e1400f2742999f81df814705b79a [2020-10-23 20:24:55,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:24:55,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:24:55,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:24:55,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:24:55,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:24:55,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:55" (1/1) ... [2020-10-23 20:24:55,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ffc228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:55, skipping insertion in model container [2020-10-23 20:24:55,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:55" (1/1) ... [2020-10-23 20:24:55,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:24:55,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:24:55,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:24:56,003 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:24:56,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:24:56,086 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:24:56,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56 WrapperNode [2020-10-23 20:24:56,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:24:56,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:24:56,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:24:56,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:24:56,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... [2020-10-23 20:24:56,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... [2020-10-23 20:24:56,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... [2020-10-23 20:24:56,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... [2020-10-23 20:24:56,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... [2020-10-23 20:24:56,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... [2020-10-23 20:24:56,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... [2020-10-23 20:24:56,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:24:56,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:24:56,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:24:56,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:24:56,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:24:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:24:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:24:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:24:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-23 20:24:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2020-10-23 20:24:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-23 20:24:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:24:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:24:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:24:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:24:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:24:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-23 20:24:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2020-10-23 20:24:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 20:24:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:24:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:24:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:24:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 20:24:56,233 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-23 20:24:56,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:24:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:24:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:24:56,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:24:57,114 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:24:57,114 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-23 20:24:57,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:24:57 BoogieIcfgContainer [2020-10-23 20:24:57,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:24:57,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:24:57,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:24:57,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:24:57,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:24:55" (1/3) ... [2020-10-23 20:24:57,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b75ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:24:57, skipping insertion in model container [2020-10-23 20:24:57,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:56" (2/3) ... [2020-10-23 20:24:57,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b75ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:24:57, skipping insertion in model container [2020-10-23 20:24:57,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:24:57" (3/3) ... [2020-10-23 20:24:57,131 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072d.c [2020-10-23 20:24:57,146 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:24:57,152 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:24:57,168 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:24:57,209 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:24:57,210 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:24:57,210 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:24:57,210 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:24:57,210 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:24:57,210 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:24:57,210 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:24:57,211 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:24:57,239 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-10-23 20:24:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-23 20:24:57,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:24:57,260 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] [2020-10-23 20:24:57,261 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:24:57,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:24:57,270 INFO L82 PathProgramCache]: Analyzing trace with hash 103710351, now seen corresponding path program 1 times [2020-10-23 20:24:57,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:24:57,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972309001] [2020-10-23 20:24:57,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:24:57,373 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:24:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:57,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:24:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:57,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 20:24:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:57,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-23 20:24:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:24:57,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972309001] [2020-10-23 20:24:57,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:24:57,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:24:57,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625608827] [2020-10-23 20:24:57,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:24:57,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:24:57,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:24:57,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:24:57,792 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 4 states. [2020-10-23 20:24:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:24:58,204 INFO L93 Difference]: Finished difference Result 222 states and 252 transitions. [2020-10-23 20:24:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:24:58,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-23 20:24:58,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:24:58,217 INFO L225 Difference]: With dead ends: 222 [2020-10-23 20:24:58,218 INFO L226 Difference]: Without dead ends: 113 [2020-10-23 20:24:58,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:24:58,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-23 20:24:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-23 20:24:58,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-23 20:24:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2020-10-23 20:24:58,282 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 46 [2020-10-23 20:24:58,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:24:58,282 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2020-10-23 20:24:58,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:24:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2020-10-23 20:24:58,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-23 20:24:58,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:24:58,286 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] [2020-10-23 20:24:58,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:24:58,287 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:24:58,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:24:58,288 INFO L82 PathProgramCache]: Analyzing trace with hash -493344588, now seen corresponding path program 1 times [2020-10-23 20:24:58,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:24:58,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186096137] [2020-10-23 20:24:58,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:24:58,292 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:24:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:24:58,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:24:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:24:58,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:24:58,633 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:24:58,634 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:24:58,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:24:58,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:24:58 BoogieIcfgContainer [2020-10-23 20:24:58,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:24:58,668 INFO L168 Benchmark]: Toolchain (without parser) took 2921.98 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 99.5 MB in the end (delta: 27.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:58,670 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:24:58,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 115.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:58,675 INFO L168 Benchmark]: Boogie Preprocessor took 54.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 113.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:58,676 INFO L168 Benchmark]: RCFGBuilder took 974.92 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 119.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:58,677 INFO L168 Benchmark]: TraceAbstraction took 1542.25 ms. Allocated memory is still 151.0 MB. Free memory was 118.7 MB in the beginning and 99.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:58,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 332.43 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 115.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 113.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 974.92 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 119.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1542.25 ms. Allocated memory is still 151.0 MB. Free memory was 118.7 MB in the beginning and 99.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 76, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of bitwiseAnd at line 73. Possible FailurePath: [L86] double x = -1.0 / 0.0; [L87] CALL, EXPR trunc_double(x) [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) [L49] COND TRUE exponent_less_1023 > 51 [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; [L87] RET, EXPR trunc_double(x) [L87] double res = trunc_double(x); [L90] CALL, EXPR isinf_double(res) [L66] __int32_t hx, lx; [L68] ieee_double_shape_type ew_u; [L69] ew_u.value = (x) [L70] EXPR ew_u.parts.msw [L70] (hx) = ew_u.parts.msw [L71] EXPR ew_u.parts.lsw [L71] (lx) = ew_u.parts.lsw [L73] hx &= 0x7fffffff [L74] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L75] hx = 0x7ff00000 - hx [L76] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L90] RET, EXPR isinf_double(res) [L90] COND TRUE !isinf_double(res) [L91] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1072d.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 119 SDtfs, 21 SDslu, 68 SDs, 0 SdLazy, 148 SolverSat, 8 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...