/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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:10:14,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:10:14,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:10:14,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 20:10:14,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 20:10:14,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 20:10:14,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 20:10:14,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 20:10:14,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 20:10:14,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 20:10:14,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 20:10:14,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 20:10:14,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:10:14,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:10:14,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:10:14,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:10:14,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:10:14,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:10:14,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:10:14,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:10:14,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:10:14,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:10:14,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:10:14,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:10:14,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 20:10:14,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:10:14,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:10:14,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:10:14,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:10:14,554 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:10:14,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:10:14,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:10:14,559 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:10:14,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:10:14,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:10:14,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:10:14,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:10:14,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:10:14,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:10:14,561 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:10:14,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:10:14,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:10:14,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:10:14,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:10:14,562 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:10:14,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:10:14,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:10:14,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:10:14,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:10:14,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:10:14,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:10:14,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:10:14,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:10:15,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:10:15,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:10:15,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:10:15,012 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:10:15,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2021-02-21 20:10:15,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed959713/ddb4e76b556e46d5b214419933b27587/FLAG9cdbb67fb [2021-02-21 20:10:15,820 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:10:15,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2021-02-21 20:10:15,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed959713/ddb4e76b556e46d5b214419933b27587/FLAG9cdbb67fb [2021-02-21 20:10:16,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed959713/ddb4e76b556e46d5b214419933b27587 [2021-02-21 20:10:16,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:10:16,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:10:16,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:10:16,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:10:16,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:10:16,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221b47cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16, skipping insertion in model container [2021-02-21 20:10:16,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:10:16,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:10:16,481 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c[4189,4202] [2021-02-21 20:10:16,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:10:16,494 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:10:16,546 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c[4189,4202] [2021-02-21 20:10:16,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:10:16,569 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:10:16,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16 WrapperNode [2021-02-21 20:10:16,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:10:16,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:10:16,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:10:16,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:10:16,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (1/1) ... [2021-02-21 20:10:16,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:10:16,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:10:16,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:10:16,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:10:16,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (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 [2021-02-21 20:10:16,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:10:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:10:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:10:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-02-21 20:10:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2021-02-21 20:10:16,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2021-02-21 20:10:16,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:10:16,777 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:10:16,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:10:16,777 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:10:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:10:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-02-21 20:10:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-02-21 20:10:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2021-02-21 20:10:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-21 20:10:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:10:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:10:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-21 20:10:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:10:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2021-02-21 20:10:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:10:16,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:10:16,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:10:16,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-21 20:10:16,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:10:17,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:10:17,734 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-02-21 20:10:17,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:10:17 BoogieIcfgContainer [2021-02-21 20:10:17,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:10:17,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:10:17,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:10:17,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:10:17,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:10:16" (1/3) ... [2021-02-21 20:10:17,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1657626f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:10:17, skipping insertion in model container [2021-02-21 20:10:17,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:10:16" (2/3) ... [2021-02-21 20:10:17,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1657626f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:10:17, skipping insertion in model container [2021-02-21 20:10:17,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:10:17" (3/3) ... [2021-02-21 20:10:17,750 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2021-02-21 20:10:17,756 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:10:17,761 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:10:17,778 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:10:17,800 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:10:17,800 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:10:17,801 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:10:17,801 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:10:17,801 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:10:17,801 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:10:17,801 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:10:17,801 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:10:17,821 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2021-02-21 20:10:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-21 20:10:17,834 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:10:17,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:10:17,835 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:10:17,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:10:17,842 INFO L82 PathProgramCache]: Analyzing trace with hash 391415441, now seen corresponding path program 1 times [2021-02-21 20:10:17,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:10:17,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686212279] [2021-02-21 20:10:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:10:17,923 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:10:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:10:18,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:10:18,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:10:18,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:10:18,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:10:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:10:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:10:18,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:10:18,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:10:18,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 20:10:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:10:18,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:10:18,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:10:18,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:10:18,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:10:18,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:10:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:10:18,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:10:18,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:10:18,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:10:18,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:10:18,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:10:18,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686212279] [2021-02-21 20:10:18,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:10:18,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:10:18,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559155056] [2021-02-21 20:10:18,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:10:18,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:10:18,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:10:18,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:10:18,310 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 4 states. [2021-02-21 20:10:18,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:10:18,972 INFO L93 Difference]: Finished difference Result 387 states and 476 transitions. [2021-02-21 20:10:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:10:18,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2021-02-21 20:10:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:10:18,986 INFO L225 Difference]: With dead ends: 387 [2021-02-21 20:10:18,987 INFO L226 Difference]: Without dead ends: 198 [2021-02-21 20:10:18,993 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 [2021-02-21 20:10:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-02-21 20:10:19,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-02-21 20:10:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-02-21 20:10:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 224 transitions. [2021-02-21 20:10:19,060 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 224 transitions. Word has length 56 [2021-02-21 20:10:19,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:10:19,061 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 224 transitions. [2021-02-21 20:10:19,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:10:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 224 transitions. [2021-02-21 20:10:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-21 20:10:19,065 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:10:19,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:10:19,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:10:19,066 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:10:19,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:10:19,066 INFO L82 PathProgramCache]: Analyzing trace with hash 2074926727, now seen corresponding path program 1 times [2021-02-21 20:10:19,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:10:19,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688290539] [2021-02-21 20:10:19,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:10:19,070 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:10:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 20:10:19,215 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 20:10:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 20:10:19,360 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 20:10:19,433 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 20:10:19,435 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 20:10:19,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:10:19,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:10:19 BoogieIcfgContainer [2021-02-21 20:10:19,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:10:19,471 INFO L168 Benchmark]: Toolchain (without parser) took 3318.63 ms. Allocated memory was 160.4 MB in the beginning and 205.5 MB in the end (delta: 45.1 MB). Free memory was 136.1 MB in the beginning and 100.3 MB in the end (delta: 35.8 MB). Peak memory consumption was 82.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:10:19,472 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 160.4 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:10:19,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.97 ms. Allocated memory is still 160.4 MB. Free memory was 135.1 MB in the beginning and 121.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:10:19,474 INFO L168 Benchmark]: Boogie Preprocessor took 84.81 ms. Allocated memory is still 160.4 MB. Free memory was 121.9 MB in the beginning and 119.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 20:10:19,475 INFO L168 Benchmark]: RCFGBuilder took 1081.26 ms. Allocated memory is still 160.4 MB. Free memory was 119.5 MB in the beginning and 110.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:10:19,476 INFO L168 Benchmark]: TraceAbstraction took 1723.03 ms. Allocated memory was 160.4 MB in the beginning and 205.5 MB in the end (delta: 45.1 MB). Free memory was 109.7 MB in the beginning and 100.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 53.9 MB. Max. memory is 8.0 GB. [2021-02-21 20:10:19,491 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 160.4 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 408.97 ms. Allocated memory is still 160.4 MB. Free memory was 135.1 MB in the beginning and 121.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.81 ms. Allocated memory is still 160.4 MB. Free memory was 121.9 MB in the beginning and 119.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1081.26 ms. Allocated memory is still 160.4 MB. Free memory was 119.5 MB in the beginning and 110.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1723.03 ms. Allocated memory was 160.4 MB in the beginning and 205.5 MB in the end (delta: 45.1 MB). Free memory was 109.7 MB in the beginning and 100.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 53.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 191]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L182] double y = 1.0 / 0.0; [L183] double x = __VERIFIER_nondet_double(); [L185] CALL isfinite_double(x) [L166] __int32_t hx; [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L185] RET isfinite_double(x) [L185] COND TRUE isfinite_double(x) [L187] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L187] RET, EXPR fmod_double(x, y) [L187] double res = fmod_double(x, y); [L190] COND TRUE res != x [L191] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 212 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 228 SDtfs, 37 SDslu, 175 SDs, 0 SdLazy, 245 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 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...