/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -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-36cd7be [2021-02-23 22:34:42,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:34:42,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:34:42,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:34:42,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:34:42,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:34:42,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:34:42,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:34:42,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:34:42,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:34:42,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:34:42,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:34:42,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:34:42,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:34:42,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:34:42,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:34:42,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:34:42,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:34:42,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:34:42,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:34:42,947 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 22:34:42,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:34:42,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:34:42,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:34:42,961 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:34:42,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:34:42,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:34:42,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:34:42,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:34:42,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:34:42,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:34:42,963 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:34:42,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:34:42,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:34:42,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:34:42,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:34:42,965 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:34:42,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:34:42,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:34:42,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:34:42,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:34:42,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:34:42,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:34:42,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:34:43,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:34:43,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:34:43,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:34:43,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:34:43,365 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:34:43,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2021-02-23 22:34:43,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90545b33c/074714b8ed1a4b4ebfc4d5f7de6bf371/FLAGbb9248872 [2021-02-23 22:34:44,190 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:34:44,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2021-02-23 22:34:44,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90545b33c/074714b8ed1a4b4ebfc4d5f7de6bf371/FLAGbb9248872 [2021-02-23 22:34:44,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90545b33c/074714b8ed1a4b4ebfc4d5f7de6bf371 [2021-02-23 22:34:44,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:34:44,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:34:44,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:34:44,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:34:44,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:34:44,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115f7921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44, skipping insertion in model container [2021-02-23 22:34:44,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:34:44,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:34:44,635 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] [2021-02-23 22:34:44,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:34:44,647 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:34:44,693 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] [2021-02-23 22:34:44,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:34:44,713 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:34:44,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44 WrapperNode [2021-02-23 22:34:44,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:34:44,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:34:44,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:34:44,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:34:44,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (1/1) ... [2021-02-23 22:34:44,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:34:44,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:34:44,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:34:44,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:34:44,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (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 22:34:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:34:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:34:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:34:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-02-23 22:34:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2021-02-23 22:34:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2021-02-23 22:34:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:34:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:34:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:34:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:34:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:34:44,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-02-23 22:34:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-02-23 22:34:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2021-02-23 22:34:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-23 22:34:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:34:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:34:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-23 22:34:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:34:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2021-02-23 22:34:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:34:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:34:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:34:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-23 22:34:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:34:45,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:34:45,583 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-02-23 22:34:45,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:34:45 BoogieIcfgContainer [2021-02-23 22:34:45,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:34:45,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:34:45,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:34:45,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:34:45,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:34:44" (1/3) ... [2021-02-23 22:34:45,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76376c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:34:45, skipping insertion in model container [2021-02-23 22:34:45,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:34:44" (2/3) ... [2021-02-23 22:34:45,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76376c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:34:45, skipping insertion in model container [2021-02-23 22:34:45,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:34:45" (3/3) ... [2021-02-23 22:34:45,601 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2021-02-23 22:34:45,612 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:34:45,618 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:34:45,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:34:45,675 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:34:45,675 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:34:45,675 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:34:45,676 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:34:45,676 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:34:45,676 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:34:45,677 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:34:45,677 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:34:45,706 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2021-02-23 22:34:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-23 22:34:45,718 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:34:45,719 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] [2021-02-23 22:34:45,719 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:34:45,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:34:45,725 INFO L82 PathProgramCache]: Analyzing trace with hash 391415441, now seen corresponding path program 1 times [2021-02-23 22:34:45,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:34:45,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3148357] [2021-02-23 22:34:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:34:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:45,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:45,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:45,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:45,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:34:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:46,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 22:34:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:46,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 22:34:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:34:46,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:34:46,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:34:46,109 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 22:34:46,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3148357] [2021-02-23 22:34:46,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:34:46,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:34:46,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661135770] [2021-02-23 22:34:46,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:34:46,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:34:46,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:34:46,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:34:46,145 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 4 states. [2021-02-23 22:34:46,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:34:46,677 INFO L93 Difference]: Finished difference Result 387 states and 476 transitions. [2021-02-23 22:34:46,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 22:34:46,679 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2021-02-23 22:34:46,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:34:46,691 INFO L225 Difference]: With dead ends: 387 [2021-02-23 22:34:46,691 INFO L226 Difference]: Without dead ends: 198 [2021-02-23 22:34:46,697 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 [2021-02-23 22:34:46,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-02-23 22:34:46,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-02-23 22:34:46,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-02-23 22:34:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 224 transitions. [2021-02-23 22:34:46,761 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 224 transitions. Word has length 56 [2021-02-23 22:34:46,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:34:46,761 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 224 transitions. [2021-02-23 22:34:46,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:34:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 224 transitions. [2021-02-23 22:34:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-23 22:34:46,765 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:34:46,765 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] [2021-02-23 22:34:46,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:34:46,766 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:34:46,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:34:46,767 INFO L82 PathProgramCache]: Analyzing trace with hash 2074926727, now seen corresponding path program 1 times [2021-02-23 22:34:46,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:34:46,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124866178] [2021-02-23 22:34:46,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:34:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:34:46,878 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:34:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:34:47,024 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:34:47,078 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:34:47,078 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:34:47,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:34:47,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:34:47 BoogieIcfgContainer [2021-02-23 22:34:47,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:34:47,167 INFO L168 Benchmark]: Toolchain (without parser) took 2929.70 ms. Allocated memory was 160.4 MB in the beginning and 207.6 MB in the end (delta: 47.2 MB). Free memory was 136.7 MB in the beginning and 179.0 MB in the end (delta: -42.3 MB). Peak memory consumption was 76.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,168 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 160.4 MB. Free memory is still 136.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:34:47,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.05 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 122.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,170 INFO L168 Benchmark]: Boogie Preprocessor took 86.89 ms. Allocated memory is still 160.4 MB. Free memory was 122.6 MB in the beginning and 120.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,171 INFO L168 Benchmark]: RCFGBuilder took 783.45 ms. Allocated memory is still 160.4 MB. Free memory was 120.2 MB in the beginning and 109.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,172 INFO L168 Benchmark]: TraceAbstraction took 1574.19 ms. Allocated memory was 160.4 MB in the beginning and 207.6 MB in the end (delta: 47.2 MB). Free memory was 109.3 MB in the beginning and 179.0 MB in the end (delta: -69.7 MB). Peak memory consumption was 48.8 MB. Max. memory is 8.0 GB. [2021-02-23 22:34:47,175 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 160.4 MB. Free memory is still 136.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 462.05 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 122.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.89 ms. Allocated memory is still 160.4 MB. Free memory was 122.6 MB in the beginning and 120.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 783.45 ms. Allocated memory is still 160.4 MB. Free memory was 120.2 MB in the beginning and 109.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1574.19 ms. Allocated memory was 160.4 MB in the beginning and 207.6 MB in the end (delta: 47.2 MB). Free memory was 109.3 MB in the beginning and 179.0 MB in the end (delta: -69.7 MB). Peak memory consumption was 48.8 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, }; VAL [\old(one_fmod)=9223372034706243601, \old(Zero_fmod)=9223372034706243590, \old(Zero_fmod)=9223372034706243599, one_fmod=1, Zero_fmod={9:0}] [L182] double y = 1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={9:0}] [L183] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372034706243593, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L185] CALL isfinite_double(x) VAL [\old(x)=9223372034706243593, one_fmod=1, Zero_fmod={9:0}] [L166] __int32_t hx; VAL [\old(x)=9223372034706243593, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L168] ieee_double_shape_type gh_u; VAL [\old(x)=9223372034706243593, gh_u={10:0}, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L169] gh_u.value = (x) VAL [\old(x)=9223372034706243593, gh_u={10:0}, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L170] EXPR gh_u.parts.msw VAL [\old(x)=9223372034706243593, gh_u={10:0}, gh_u.parts.msw=0, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L170] (hx) = gh_u.parts.msw VAL [\old(x)=9223372034706243593, gh_u={10:0}, gh_u.parts.msw=0, hx=0, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243593, \result=-2, hx=0, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L185] RET isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L185] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243593, Zero_fmod={9:0}] [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, one_fmod=1, Zero_fmod={9:0}] [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L27] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L31] ew_u.value = (x) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L32] EXPR ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.msw=8589934589, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L32] (hx) = ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.msw=8589934589, hx=-3, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L33] EXPR ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.lsw=9223372034706243591, hx=-3, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L33] (lx) = ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={13:0}, ew_u.parts.lsw=9223372034706243591, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L36] ieee_double_shape_type ew_u; VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L37] ew_u.value = (y) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L38] EXPR ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.msw=4294967292, hx=-3, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L38] (hy) = ew_u.parts.msw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.msw=4294967292, hx=-3, hy=-4, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L39] EXPR ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.lsw=9223372034706243586, hx=-3, hy=-4, lx=9223372034706243591, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L39] (ly) = ew_u.parts.lsw VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, ew_u={3:0}, ew_u.parts.lsw=9223372034706243586, hx=-3, hy=-4, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L41] sx = hx & 0x80000000 VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hx=-3, hy=-4, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L42] hx ^= sx VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hy=-4, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L43] hy &= 0x7fffffff VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hx=2146435072, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L47] return (x * y) / (x * y); VAL [\old(x)=9223372034706243593, \old(y)=9223372034706243600, hx=2146435072, lx=9223372034706243591, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243588, one_fmod=1, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L187] double res = fmod_double(x, y); VAL [fmod_double(x, y)=9223372034706243588, one_fmod=1, res=9223372034706243588, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L190] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243588, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] [L191] reach_error() VAL [one_fmod=1, res=9223372034706243588, x=9223372034706243593, y=9223372034706243600, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 212 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 6490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...