/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:12:43,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:12:43,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:12:43,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:12:43,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:12:43,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:12:43,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:12:43,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:12:43,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:12:43,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:12:43,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:12:43,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:12:43,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:12:43,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:12:43,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:12:43,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:12:43,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:12:43,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:12:43,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:12:43,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:12:43,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:12:43,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:12:43,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:12:43,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:12:43,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:12:43,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:12:43,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:12:43,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:12:43,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 13:12:44,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:12:44,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:12:44,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:12:44,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:12:44,054 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:12:44,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:12:44,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:12:44,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:12:44,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:12:44,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:12:44,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:12:44,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:12:44,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:12:44,057 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:12:44,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:12:44,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:12:44,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:12:44,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:12:44,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:12:44,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:12:44,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:12:44,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:12:44,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:12:44,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:12:44,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:12:44,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:12:44,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:12:44,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:12:44,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:12:44,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:12:44,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:12:44,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:12:44,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:12:44,528 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:12:44,529 INFO L432 ainManager$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 13:12:44,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d4730ceb/96e91ec51ae945b08a557847dd4247c5/FLAG68c685656 [2021-02-23 13:12:45,289 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:12:45,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2021-02-23 13:12:45,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d4730ceb/96e91ec51ae945b08a557847dd4247c5/FLAG68c685656 [2021-02-23 13:12:45,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d4730ceb/96e91ec51ae945b08a557847dd4247c5 [2021-02-23 13:12:45,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:12:45,626 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:12:45,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:12:45,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:12:45,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:12:45,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:45,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2c2d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45, skipping insertion in model container [2021-02-23 13:12:45,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:45,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:12:45,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:12:45,882 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 13:12:45,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:12:45,893 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:12:45,955 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 13:12:45,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:12:45,988 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:12:45,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45 WrapperNode [2021-02-23 13:12:45,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:12:45,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:12:45,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:12:45,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:12:46,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:46,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:46,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:46,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:46,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:46,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:46,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (1/1) ... [2021-02-23 13:12:46,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:12:46,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:12:46,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:12:46,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:12:46,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (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 13:12:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:12:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:12:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:12:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-02-23 13:12:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2021-02-23 13:12:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2021-02-23 13:12:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:12:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:12:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:12:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:12:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:12:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-02-23 13:12:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-02-23 13:12:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2021-02-23 13:12:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-23 13:12:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:12:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:12:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-23 13:12:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:12:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2021-02-23 13:12:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:12:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:12:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:12:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-02-23 13:12:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:12:46,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:12:46,899 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-02-23 13:12:46,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:12:46 BoogieIcfgContainer [2021-02-23 13:12:46,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:12:46,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:12:46,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:12:46,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:12:46,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:12:45" (1/3) ... [2021-02-23 13:12:46,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2213977f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:12:46, skipping insertion in model container [2021-02-23 13:12:46,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:12:45" (2/3) ... [2021-02-23 13:12:46,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2213977f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:12:46, skipping insertion in model container [2021-02-23 13:12:46,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:12:46" (3/3) ... [2021-02-23 13:12:46,910 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2021-02-23 13:12:46,918 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:12:46,923 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:12:46,947 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:12:46,975 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:12:46,976 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:12:46,976 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:12:46,976 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:12:46,976 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:12:46,976 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:12:46,976 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:12:46,977 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:12:46,996 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2021-02-23 13:12:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-23 13:12:47,002 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:12:47,003 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] [2021-02-23 13:12:47,004 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:12:47,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:12:47,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1327737902, now seen corresponding path program 1 times [2021-02-23 13:12:47,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:12:47,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960398660] [2021-02-23 13:12:47,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:12:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:12:47,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:12:47,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:12:47,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:12:47,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:12:47,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:12:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:12:47,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:12:47,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:12:47,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:12:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:12:47,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:12:47,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:12:47,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:12:47,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:12:47,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 13:12:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:12:47,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:12:47,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:12:47,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:12:47,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:12:47,348 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 13:12:47,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960398660] [2021-02-23 13:12:47,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:12:47,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:12:47,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430392765] [2021-02-23 13:12:47,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:12:47,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:12:47,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:12:47,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:12:47,381 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2021-02-23 13:12:47,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:12:47,729 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2021-02-23 13:12:47,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 13:12:47,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-23 13:12:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:12:47,741 INFO L225 Difference]: With dead ends: 138 [2021-02-23 13:12:47,742 INFO L226 Difference]: Without dead ends: 68 [2021-02-23 13:12:47,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:12:47,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-02-23 13:12:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-02-23 13:12:47,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-02-23 13:12:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2021-02-23 13:12:47,795 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2021-02-23 13:12:47,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:12:47,796 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2021-02-23 13:12:47,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:12:47,796 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2021-02-23 13:12:47,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 13:12:47,798 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:12:47,798 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] [2021-02-23 13:12:47,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:12:47,799 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:12:47,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:12:47,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1607479198, now seen corresponding path program 1 times [2021-02-23 13:12:47,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:12:47,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512089237] [2021-02-23 13:12:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:12:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:12:47,950 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:12:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:12:48,090 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:12:48,146 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:12:48,146 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:12:48,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:12:48,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:12:48 BoogieIcfgContainer [2021-02-23 13:12:48,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:12:48,233 INFO L168 Benchmark]: Toolchain (without parser) took 2616.78 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 126.1 MB in the beginning and 159.6 MB in the end (delta: -33.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:12:48,234 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:12:48,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.93 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 111.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:12:48,236 INFO L168 Benchmark]: Boogie Preprocessor took 123.35 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 108.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:12:48,237 INFO L168 Benchmark]: RCFGBuilder took 786.91 ms. Allocated memory is still 151.0 MB. Free memory was 108.9 MB in the beginning and 115.0 MB in the end (delta: -6.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:12:48,239 INFO L168 Benchmark]: TraceAbstraction took 1326.56 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 114.4 MB in the beginning and 159.6 MB in the end (delta: -45.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2021-02-23 13:12:48,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 360.93 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 111.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.35 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 108.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 786.91 ms. Allocated memory is still 151.0 MB. Free memory was 108.9 MB in the beginning and 115.0 MB in the end (delta: -6.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1326.56 ms. Allocated memory was 151.0 MB in the beginning and 202.4 MB in the end (delta: 51.4 MB). Free memory was 114.4 MB in the beginning and 159.6 MB in the end (delta: -45.2 MB). Peak memory consumption was 7.8 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 41, 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)=9223372032558759952, \old(Zero_fmod)=9223372032558759944, \old(Zero_fmod)=9223372032558759950, one_fmod=1, Zero_fmod={5:0}] [L182] double y = 1.0 / 0.0; [L183] double x = __VERIFIER_nondet_double(); [L185] CALL isfinite_double(x) VAL [\old(x)=9223372032558759940, one_fmod=1, Zero_fmod={5:0}] [L166] __int32_t hx; VAL [\old(x)=9223372032558759940, one_fmod=1, x=9223372032558759940, Zero_fmod={5:0}] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372032558759940, \result=-3, hx=-2, one_fmod=1, x=9223372032558759940, Zero_fmod={5:0}] [L185] RET isfinite_double(x) VAL [isfinite_double(x)=-3, one_fmod=1, x=9223372032558759940, Zero_fmod={5:0}] [L185] COND TRUE isfinite_double(x) [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372032558759940, \old(y)=9223372032558759953, one_fmod=1, Zero_fmod={5:0}] [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [\old(x)=9223372032558759940, \old(y)=9223372032558759953, one_fmod=1, x=9223372032558759940, y=9223372032558759953, Zero_fmod={5:0}] [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 VAL [\old(x)=9223372032558759940, \old(y)=9223372032558759953, lx=9223372032558759951, ly=9223372032558759938, one_fmod=1, sx=14, x=9223372032558759940, y=9223372032558759953, Zero_fmod={5:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [\old(x)=9223372032558759940, \old(y)=9223372032558759953, hx=2146435072, lx=9223372032558759951, ly=9223372032558759938, one_fmod=1, sx=14, x=9223372032558759940, y=9223372032558759953, Zero_fmod={5:0}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372032558759942, one_fmod=1, x=9223372032558759940, y=9223372032558759953, Zero_fmod={5:0}] [L187] double res = fmod_double(x, y); [L190] COND TRUE res != x VAL [one_fmod=1, res=9223372032558759942, x=9223372032558759940, y=9223372032558759953, Zero_fmod={5:0}] [L191] reach_error() VAL [one_fmod=1, res=9223372032558759942, x=9223372032558759940, y=9223372032558759953, Zero_fmod={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 2088 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...