/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_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 17:37:22,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 17:37:22,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 17:37:22,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 17:37:22,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 17:37:22,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 17:37:22,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 17:37:22,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 17:37:22,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 17:37:22,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 17:37:22,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 17:37:22,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 17:37:22,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 17:37:22,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 17:37:22,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 17:37:22,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 17:37:22,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 17:37:22,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 17:37:22,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 17:37:22,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 17:37:22,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 17:37:22,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 17:37:22,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 17:37:22,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 17:37:22,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 17:37:22,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 17:37:22,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 17:37:22,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 17:37:22,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 17:37:22,642 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 17:37:22,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 17:37:22,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 17:37:22,647 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 17:37:22,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 17:37:22,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 17:37:22,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 17:37:22,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 17:37:22,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 17:37:22,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 17:37:22,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 17:37:22,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 17:37:22,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 17:37:22,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 17:37:22,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 17:37:22,651 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 17:37:22,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 17:37:22,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 17:37:22,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:37:22,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 17:37:22,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 17:37:22,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 17:37:22,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 17:37:23,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 17:37:23,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 17:37:23,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 17:37:23,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 17:37:23,100 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 17:37:23,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2021-02-23 17:37:23,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818978b08/82011f193fe440438074532ed3a6a100/FLAG17abffe63 [2021-02-23 17:37:23,884 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 17:37:23,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2021-02-23 17:37:23,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818978b08/82011f193fe440438074532ed3a6a100/FLAG17abffe63 [2021-02-23 17:37:24,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/818978b08/82011f193fe440438074532ed3a6a100 [2021-02-23 17:37:24,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 17:37:24,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 17:37:24,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 17:37:24,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 17:37:24,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 17:37:24,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b08e7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24, skipping insertion in model container [2021-02-23 17:37:24,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 17:37:24,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 17:37:24,515 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_1130a.c[4166,4179] [2021-02-23 17:37:24,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:37:24,527 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 17:37:24,596 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_1130a.c[4166,4179] [2021-02-23 17:37:24,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:37:24,633 INFO L208 MainTranslator]: Completed translation [2021-02-23 17:37:24,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24 WrapperNode [2021-02-23 17:37:24,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 17:37:24,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 17:37:24,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 17:37:24,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 17:37:24,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... [2021-02-23 17:37:24,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 17:37:24,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 17:37:24,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 17:37:24,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 17:37:24,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:37:24,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 17:37:24,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 17:37:24,836 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 17:37:24,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-02-23 17:37:24,836 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2021-02-23 17:37:24,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2021-02-23 17:37:24,837 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 17:37:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 17:37:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 17:37:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 17:37:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 17:37:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-02-23 17:37:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-02-23 17:37:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2021-02-23 17:37:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-23 17:37:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 17:37:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 17:37:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-23 17:37:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 17:37:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2021-02-23 17:37:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 17:37:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 17:37:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 17:37:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-23 17:37:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 17:37:25,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 17:37:25,658 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-02-23 17:37:25,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:37:25 BoogieIcfgContainer [2021-02-23 17:37:25,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 17:37:25,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 17:37:25,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 17:37:25,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 17:37:25,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 05:37:24" (1/3) ... [2021-02-23 17:37:25,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7c503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:37:25, skipping insertion in model container [2021-02-23 17:37:25,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:37:24" (2/3) ... [2021-02-23 17:37:25,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7c503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:37:25, skipping insertion in model container [2021-02-23 17:37:25,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:37:25" (3/3) ... [2021-02-23 17:37:25,669 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2021-02-23 17:37:25,675 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 17:37:25,681 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 17:37:25,702 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 17:37:25,728 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 17:37:25,728 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 17:37:25,728 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 17:37:25,728 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 17:37:25,729 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 17:37:25,729 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 17:37:25,729 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 17:37:25,729 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 17:37:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2021-02-23 17:37:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-23 17:37:25,763 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:37:25,764 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] [2021-02-23 17:37:25,764 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:37:25,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:37:25,771 INFO L82 PathProgramCache]: Analyzing trace with hash 783378974, now seen corresponding path program 1 times [2021-02-23 17:37:25,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:37:25,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412895713] [2021-02-23 17:37:25,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:37:25,862 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:37:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:37:26,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:37:26,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:37:26,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:37:26,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:37:26,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:37:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:37:26,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:37:26,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:37:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:37:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:37:26,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:37:26,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:37:26,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:37:26,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:37:26,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:37:26,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412895713] [2021-02-23 17:37:26,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:37:26,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:37:26,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430070948] [2021-02-23 17:37:26,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:37:26,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:37:26,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:37:26,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:37:26,283 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 4 states. [2021-02-23 17:37:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:37:26,759 INFO L93 Difference]: Finished difference Result 388 states and 478 transitions. [2021-02-23 17:37:26,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:37:26,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-02-23 17:37:26,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:37:26,773 INFO L225 Difference]: With dead ends: 388 [2021-02-23 17:37:26,773 INFO L226 Difference]: Without dead ends: 202 [2021-02-23 17:37:26,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:37:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-02-23 17:37:26,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-02-23 17:37:26,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2021-02-23 17:37:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 229 transitions. [2021-02-23 17:37:26,847 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 229 transitions. Word has length 51 [2021-02-23 17:37:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:37:26,847 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 229 transitions. [2021-02-23 17:37:26,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:37:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 229 transitions. [2021-02-23 17:37:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-23 17:37:26,851 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:37:26,851 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] [2021-02-23 17:37:26,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 17:37:26,852 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:37:26,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:37:26,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1917323870, now seen corresponding path program 1 times [2021-02-23 17:37:26,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:37:26,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615322708] [2021-02-23 17:37:26,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:37:26,857 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:37:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:37:26,952 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:37:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:37:27,040 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:37:27,102 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 17:37:27,103 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 17:37:27,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 17:37:27,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 05:37:27 BoogieIcfgContainer [2021-02-23 17:37:27,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 17:37:27,137 INFO L168 Benchmark]: Toolchain (without parser) took 2934.82 ms. Allocated memory was 165.7 MB in the beginning and 212.9 MB in the end (delta: 47.2 MB). Free memory was 142.7 MB in the beginning and 187.9 MB in the end (delta: -45.2 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. [2021-02-23 17:37:27,139 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 165.7 MB. Free memory is still 141.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:37:27,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.88 ms. Allocated memory is still 165.7 MB. Free memory was 141.6 MB in the beginning and 128.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 17:37:27,142 INFO L168 Benchmark]: Boogie Preprocessor took 96.26 ms. Allocated memory is still 165.7 MB. Free memory was 128.2 MB in the beginning and 125.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 17:37:27,143 INFO L168 Benchmark]: RCFGBuilder took 927.52 ms. Allocated memory is still 165.7 MB. Free memory was 125.8 MB in the beginning and 113.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. [2021-02-23 17:37:27,144 INFO L168 Benchmark]: TraceAbstraction took 1470.80 ms. Allocated memory was 165.7 MB in the beginning and 212.9 MB in the end (delta: 47.2 MB). Free memory was 113.2 MB in the beginning and 187.9 MB in the end (delta: -74.7 MB). Peak memory consumption was 49.0 MB. Max. memory is 8.0 GB. [2021-02-23 17:37:27,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 165.7 MB. Free memory is still 141.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 414.88 ms. Allocated memory is still 165.7 MB. Free memory was 141.6 MB in the beginning and 128.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 96.26 ms. Allocated memory is still 165.7 MB. Free memory was 128.2 MB in the beginning and 125.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 927.52 ms. Allocated memory is still 165.7 MB. Free memory was 125.8 MB in the beginning and 113.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1470.80 ms. Allocated memory was 165.7 MB in the beginning and 212.9 MB in the end (delta: 47.2 MB). Free memory was 113.2 MB in the beginning and 187.9 MB in the end (delta: -74.7 MB). Peak memory consumption was 49.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 193]: 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 bitwiseAnd at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] 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); [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 234 SDtfs, 45 SDslu, 177 SDs, 0 SdLazy, 251 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred 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...