/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 0.2.0-7d8eed3 [2020-11-06 21:57:31,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:57:31,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:57:31,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:57:31,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:57:31,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:57:31,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:57:31,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:57:31,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:57:31,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:57:31,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:57:31,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:57:31,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:57:31,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:57:31,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:57:31,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:57:31,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:57:31,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:57:31,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:57:31,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:57:31,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:57:31,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:57:31,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:57:31,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:57:31,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:57:31,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:57:31,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:57:31,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:57:31,191 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 [2020-11-06 21:57:31,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:57:31,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:57:31,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:57:31,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:57:31,220 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:57:31,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:57:31,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:57:31,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:57:31,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:57:31,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:57:31,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:57:31,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:57:31,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:57:31,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:57:31,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:57:31,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:57:31,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:57:31,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:57:31,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:57:31,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:57:31,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:57:31,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:57:31,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:57:31,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:57:31,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:57:31,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:57:31,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:57:31,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:57:31,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:57:31,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:57:31,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:57:31,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:57:31,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:57:31,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:57:31,622 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:57:31,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-11-06 21:57:31,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f9387cc/6faf0ca860b342a09daa09b5b5017ef0/FLAG9118113c0 [2020-11-06 21:57:32,343 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:57:32,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-11-06 21:57:32,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f9387cc/6faf0ca860b342a09daa09b5b5017ef0/FLAG9118113c0 [2020-11-06 21:57:32,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f9387cc/6faf0ca860b342a09daa09b5b5017ef0 [2020-11-06 21:57:32,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:57:32,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:57:32,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:57:32,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:57:32,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:57:32,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:32" (1/1) ... [2020-11-06 21:57:32,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a9cf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:32, skipping insertion in model container [2020-11-06 21:57:32,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:32" (1/1) ... [2020-11-06 21:57:32,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:57:32,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:57:33,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:57:33,020 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:57:33,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:57:33,168 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:57:33,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33 WrapperNode [2020-11-06 21:57:33,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:57:33,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:57:33,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:57:33,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:57:33,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (1/1) ... [2020-11-06 21:57:33,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (1/1) ... [2020-11-06 21:57:33,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (1/1) ... [2020-11-06 21:57:33,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (1/1) ... [2020-11-06 21:57:33,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (1/1) ... [2020-11-06 21:57:33,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (1/1) ... [2020-11-06 21:57:33,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (1/1) ... [2020-11-06 21:57:33,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:57:33,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:57:33,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:57:33,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:57:33,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (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 [2020-11-06 21:57:33,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:57:33,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:57:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:57:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-06 21:57:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-11-06 21:57:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-11-06 21:57:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:57:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-06 21:57:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-06 21:57:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-11-06 21:57:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-06 21:57:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:57:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:57:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-06 21:57:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:57:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-11-06 21:57:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:57:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:57:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:57:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-06 21:57:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:57:34,133 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:57:34,133 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-06 21:57:34,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:34 BoogieIcfgContainer [2020-11-06 21:57:34,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:57:34,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:57:34,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:57:34,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:57:34,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:57:32" (1/3) ... [2020-11-06 21:57:34,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cabe3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:34, skipping insertion in model container [2020-11-06 21:57:34,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:33" (2/3) ... [2020-11-06 21:57:34,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cabe3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:34, skipping insertion in model container [2020-11-06 21:57:34,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:34" (3/3) ... [2020-11-06 21:57:34,146 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-11-06 21:57:34,166 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:57:34,172 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:57:34,188 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:57:34,222 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:57:34,223 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:57:34,223 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:57:34,223 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:57:34,224 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:57:34,224 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:57:34,224 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:57:34,224 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:57:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-11-06 21:57:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-06 21:57:34,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:57:34,254 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] [2020-11-06 21:57:34,254 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:57:34,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:57:34,262 INFO L82 PathProgramCache]: Analyzing trace with hash 154150217, now seen corresponding path program 1 times [2020-11-06 21:57:34,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:57:34,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873965273] [2020-11-06 21:57:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:57:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:34,570 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-11-06 21:57:34,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:57:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:34,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:57:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:34,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-06 21:57:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:57:34,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:57:34,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873965273] [2020-11-06 21:57:34,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:57:34,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 21:57:34,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841409287] [2020-11-06 21:57:34,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 21:57:34,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:57:34,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 21:57:34,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 21:57:34,693 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-11-06 21:57:35,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:57:35,160 INFO L93 Difference]: Finished difference Result 143 states and 233 transitions. [2020-11-06 21:57:35,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 21:57:35,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-11-06 21:57:35,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:57:35,176 INFO L225 Difference]: With dead ends: 143 [2020-11-06 21:57:35,177 INFO L226 Difference]: Without dead ends: 69 [2020-11-06 21:57:35,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 21:57:35,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-06 21:57:35,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-06 21:57:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-06 21:57:35,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-11-06 21:57:35,230 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 26 [2020-11-06 21:57:35,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:57:35,230 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-11-06 21:57:35,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 21:57:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-11-06 21:57:35,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-06 21:57:35,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:57:35,232 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] [2020-11-06 21:57:35,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:57:35,233 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:57:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:57:35,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1169914594, now seen corresponding path program 1 times [2020-11-06 21:57:35,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:57:35,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203132783] [2020-11-06 21:57:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:57:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:57:35,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:57:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:57:35,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:57:35,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 21:57:35,532 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 21:57:35,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 21:57:35,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:57:35 BoogieIcfgContainer [2020-11-06 21:57:35,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:57:35,598 INFO L168 Benchmark]: Toolchain (without parser) took 2907.58 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 100.6 MB in the beginning and 93.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 51.8 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:35,598 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 100.8 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:57:35,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.20 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 86.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:35,600 INFO L168 Benchmark]: Boogie Preprocessor took 74.87 ms. Allocated memory is still 125.8 MB. Free memory was 86.3 MB in the beginning and 83.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:35,601 INFO L168 Benchmark]: RCFGBuilder took 889.18 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 83.6 MB in the beginning and 124.8 MB in the end (delta: -41.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:35,602 INFO L168 Benchmark]: TraceAbstraction took 1457.66 ms. Allocated memory is still 169.9 MB. Free memory was 124.3 MB in the beginning and 93.2 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:57:35,606 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 125.8 MB. Free memory was 100.9 MB in the beginning and 100.8 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 471.20 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 86.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.87 ms. Allocated memory is still 125.8 MB. Free memory was 86.3 MB in the beginning and 83.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 889.18 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 83.6 MB in the beginning and 124.8 MB in the end (delta: -41.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1457.66 ms. Allocated memory is still 169.9 MB. Free memory was 124.3 MB in the beginning and 93.2 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() 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)=9223372034706243607, \old(Zero_fmod)=9223372034706243604, \old(Zero_fmod)=9223372034706243598, 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)=9223372034706243597, one_fmod=1, Zero_fmod={5:0}] [L166] __int32_t hx; VAL [\old(x)=9223372034706243597, one_fmod=1, x=9223372034706243597, 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)=9223372034706243597, \result=-2, hx=0, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L185] RET isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L185] COND TRUE isfinite_double(x) [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, 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)=9223372034706243597, \old(y)=9223372034706243593, one_fmod=1, x=9223372034706243597, y=9223372034706243593, 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)=9223372034706243597, \old(y)=9223372034706243593, lx=9223372034706243605, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243597, y=9223372034706243593, 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)=9223372034706243597, \old(y)=9223372034706243593, hx=2146435072, lx=9223372034706243605, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243602, one_fmod=1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L187] double res = fmod_double(x, y); [L190] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243602, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L191] CALL reach_error() VAL [one_fmod=1, Zero_fmod={5:0}] [L3] __assert_fail("0", "double_req_bl_1131a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 8 SDslu, 86 SDs, 0 SdLazy, 101 SolverSat, 8 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2200 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...