/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:55:33,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:55:33,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:55:33,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 03:55:33,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:55:33,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:55:33,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:55:33,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:55:33,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:55:33,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:55:33,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:55:33,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:55:33,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:55:33,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:55:33,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:55:33,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:55:33,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 03:55:33,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:55:33,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:55:33,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:55:33,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:55:33,860 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:55:33,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:55:33,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:55:33,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:55:33,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:55:33,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:55:33,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:55:33,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:55:33,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:55:33,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:55:33,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:55:33,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:55:33,868 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:55:33,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:55:33,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:55:33,868 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:55:33,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:55:33,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:55:33,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:55:33,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:55:33,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:55:33,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:55:33,870 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:55:33,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:55:34,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:55:34,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:55:34,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:55:34,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:55:34,309 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:55:34,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2021-02-24 03:55:34,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af594f1ab/7674bc346b02487eb2d05133737e518c/FLAGddfe083f3 [2021-02-24 03:55:35,114 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:55:35,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2021-02-24 03:55:35,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af594f1ab/7674bc346b02487eb2d05133737e518c/FLAGddfe083f3 [2021-02-24 03:55:35,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af594f1ab/7674bc346b02487eb2d05133737e518c [2021-02-24 03:55:35,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:55:35,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:55:35,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:55:35,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:55:35,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:55:35,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:35,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df9e695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35, skipping insertion in model container [2021-02-24 03:55:35,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:35,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:55:35,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:55:35,794 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_1131b.c[4119,4132] [2021-02-24 03:55:35,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:55:35,807 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:55:35,897 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_1131b.c[4119,4132] [2021-02-24 03:55:35,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:55:35,930 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:55:35,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35 WrapperNode [2021-02-24 03:55:35,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:55:35,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:55:35,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:55:35,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:55:35,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:35,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:35,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:35,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:36,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:36,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:36,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (1/1) ... [2021-02-24 03:55:36,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:55:36,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:55:36,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:55:36,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:55:36,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (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 [2021-02-24 03:55:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:55:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:55:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:55:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2021-02-24 03:55:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2021-02-24 03:55:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:55:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:55:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:55:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:55:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:55:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-02-24 03:55:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2021-02-24 03:55:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-24 03:55:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:55:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:55:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-24 03:55:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:55:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2021-02-24 03:55:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:55:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:55:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:55:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-24 03:55:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:55:36,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:55:36,995 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-02-24 03:55:36,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:55:36 BoogieIcfgContainer [2021-02-24 03:55:36,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:55:37,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:55:37,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:55:37,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:55:37,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:55:35" (1/3) ... [2021-02-24 03:55:37,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5604beb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:55:37, skipping insertion in model container [2021-02-24 03:55:37,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:55:35" (2/3) ... [2021-02-24 03:55:37,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5604beb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:55:37, skipping insertion in model container [2021-02-24 03:55:37,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:55:36" (3/3) ... [2021-02-24 03:55:37,018 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2021-02-24 03:55:37,026 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:55:37,032 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:55:37,053 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:55:37,093 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:55:37,093 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:55:37,093 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:55:37,093 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:55:37,093 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:55:37,094 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:55:37,094 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:55:37,094 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:55:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2021-02-24 03:55:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-24 03:55:37,136 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:55:37,137 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] [2021-02-24 03:55:37,137 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:55:37,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:55:37,144 INFO L82 PathProgramCache]: Analyzing trace with hash 2046356497, now seen corresponding path program 1 times [2021-02-24 03:55:37,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:55:37,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803759849] [2021-02-24 03:55:37,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:55:37,234 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:55:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:55:37,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:55:37,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:55:37,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:55:37,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:55:37,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:55:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:55:37,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:55:37,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:55:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:55:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:55:37,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:55:37,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:55:37,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:55:37,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:55:37,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 03:55:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:55:37,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:55:37,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:55:37,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:55:37,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:55:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:55:37,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803759849] [2021-02-24 03:55:37,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:55:37,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:55:37,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300107202] [2021-02-24 03:55:37,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:55:37,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:55:37,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:55:37,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:55:37,616 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 4 states. [2021-02-24 03:55:38,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:55:38,173 INFO L93 Difference]: Finished difference Result 387 states and 476 transitions. [2021-02-24 03:55:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 03:55:38,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2021-02-24 03:55:38,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:55:38,188 INFO L225 Difference]: With dead ends: 387 [2021-02-24 03:55:38,188 INFO L226 Difference]: Without dead ends: 198 [2021-02-24 03:55:38,194 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 [2021-02-24 03:55:38,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-02-24 03:55:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-02-24 03:55:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-02-24 03:55:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 224 transitions. [2021-02-24 03:55:38,261 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 224 transitions. Word has length 56 [2021-02-24 03:55:38,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:55:38,261 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 224 transitions. [2021-02-24 03:55:38,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:55:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 224 transitions. [2021-02-24 03:55:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-24 03:55:38,265 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:55:38,265 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] [2021-02-24 03:55:38,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:55:38,266 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:55:38,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:55:38,267 INFO L82 PathProgramCache]: Analyzing trace with hash -622845468, now seen corresponding path program 1 times [2021-02-24 03:55:38,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:55:38,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55580694] [2021-02-24 03:55:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:55:38,271 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:55:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:55:38,386 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:55:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:55:38,486 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:55:38,552 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:55:38,553 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:55:38,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:55:38,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:55:38 BoogieIcfgContainer [2021-02-24 03:55:38,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:55:38,581 INFO L168 Benchmark]: Toolchain (without parser) took 3159.28 ms. Allocated memory was 170.9 MB in the beginning and 233.8 MB in the end (delta: 62.9 MB). Free memory was 146.5 MB in the beginning and 205.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:55:38,582 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 170.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:55:38,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.18 ms. Allocated memory is still 170.9 MB. Free memory was 145.2 MB in the beginning and 132.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:55:38,584 INFO L168 Benchmark]: Boogie Preprocessor took 107.74 ms. Allocated memory is still 170.9 MB. Free memory was 132.3 MB in the beginning and 129.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:55:38,585 INFO L168 Benchmark]: RCFGBuilder took 957.47 ms. Allocated memory is still 170.9 MB. Free memory was 129.7 MB in the beginning and 121.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:55:38,586 INFO L168 Benchmark]: TraceAbstraction took 1575.40 ms. Allocated memory was 170.9 MB in the beginning and 233.8 MB in the end (delta: 62.9 MB). Free memory was 120.8 MB in the beginning and 205.0 MB in the end (delta: -84.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:55:38,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 170.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 494.18 ms. Allocated memory is still 170.9 MB. Free memory was 145.2 MB in the beginning and 132.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.74 ms. Allocated memory is still 170.9 MB. Free memory was 132.3 MB in the beginning and 129.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 957.47 ms. Allocated memory is still 170.9 MB. Free memory was 129.7 MB in the beginning and 121.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1575.40 ms. Allocated memory was 170.9 MB in the beginning and 233.8 MB in the end (delta: 62.9 MB). Free memory was 120.8 MB in the beginning and 205.0 MB in the end (delta: -84.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 188]: 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 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) [L163] __int32_t hx; [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] RET isfinite_double(x) [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); [L184] RET, EXPR fmod_double(x, y) [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x [L188] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 208 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, 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...