/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 0.1.25-72570d3 [2020-08-22 21:49:42,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:49:42,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:49:42,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:49:42,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:49:42,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:49:42,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:49:42,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:49:42,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:49:42,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:49:42,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:49:42,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:49:42,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:49:42,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:49:42,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:49:42,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:49:42,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:49:42,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:49:42,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:49:42,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:49:42,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:49:42,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:49:42,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:49:42,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:49:42,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:49:42,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:49:42,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:49:42,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:49:42,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:49:42,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:49:42,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:49:42,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:49:42,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:49:42,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:49:42,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:49:42,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:49:42,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:49:42,570 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:49:42,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:49:42,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:49:42,571 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:49:42,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:49:42,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:49:42,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:49:42,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:49:42,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:49:42,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:49:42,573 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:49:42,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:49:42,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:49:42,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:49:42,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:49:42,574 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:49:42,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:49:42,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:49:42,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:42,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:49:42,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:49:42,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:49:42,575 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-08-22 21:49:42,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:49:42,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:49:42,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:49:42,854 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:49:42,855 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:49:42,856 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-22 21:49:42,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f035a3b9/bbd6976bffc0411690705553b05e6fb6/FLAGf1730e2da [2020-08-22 21:49:43,405 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:49:43,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-22 21:49:43,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f035a3b9/bbd6976bffc0411690705553b05e6fb6/FLAGf1730e2da [2020-08-22 21:49:43,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f035a3b9/bbd6976bffc0411690705553b05e6fb6 [2020-08-22 21:49:43,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:49:43,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:49:43,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:43,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:49:43,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:49:43,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab7936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43, skipping insertion in model container [2020-08-22 21:49:43,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:49:43,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:49:43,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:44,005 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:49:44,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:44,159 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:49:44,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44 WrapperNode [2020-08-22 21:49:44,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:44,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:49:44,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:49:44,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:49:44,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (1/1) ... [2020-08-22 21:49:44,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (1/1) ... [2020-08-22 21:49:44,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (1/1) ... [2020-08-22 21:49:44,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (1/1) ... [2020-08-22 21:49:44,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (1/1) ... [2020-08-22 21:49:44,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (1/1) ... [2020-08-22 21:49:44,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (1/1) ... [2020-08-22 21:49:44,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:49:44,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:49:44,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:49:44,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:49:44,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (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 [2020-08-22 21:49:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:49:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:49:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 21:49:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-22 21:49:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-22 21:49:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:49:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:49:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 21:49:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 21:49:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-22 21:49:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:49:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:49:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:49:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:49:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:49:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:49:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-22 21:49:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:49:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:49:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-22 21:49:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:49:44,946 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:49:44,946 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-22 21:49:44,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:44 BoogieIcfgContainer [2020-08-22 21:49:44,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:49:44,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:49:44,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:49:44,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:49:44,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:49:43" (1/3) ... [2020-08-22 21:49:44,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce23b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:44, skipping insertion in model container [2020-08-22 21:49:44,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:44" (2/3) ... [2020-08-22 21:49:44,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce23b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:44, skipping insertion in model container [2020-08-22 21:49:44,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:44" (3/3) ... [2020-08-22 21:49:44,966 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-08-22 21:49:44,976 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:49:44,989 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:49:45,003 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:49:45,028 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:49:45,028 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:49:45,028 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:49:45,029 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:49:45,029 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:49:45,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:49:45,029 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:49:45,029 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:49:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-08-22 21:49:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 21:49:45,076 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:45,077 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] [2020-08-22 21:49:45,077 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:45,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:45,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-08-22 21:49:45,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:45,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040050693] [2020-08-22 21:49:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:45,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:45,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 21:49:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:45,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 21:49:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:45,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:45,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040050693] [2020-08-22 21:49:45,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:45,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:49:45,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684484387] [2020-08-22 21:49:45,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:49:45,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:45,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:49:45,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:49:45,364 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-08-22 21:49:45,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:45,949 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-08-22 21:49:45,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:49:45,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-08-22 21:49:45,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:45,964 INFO L225 Difference]: With dead ends: 414 [2020-08-22 21:49:45,964 INFO L226 Difference]: Without dead ends: 209 [2020-08-22 21:49:45,970 INFO L675 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 [2020-08-22 21:49:45,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-08-22 21:49:46,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-08-22 21:49:46,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-08-22 21:49:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-08-22 21:49:46,033 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-08-22 21:49:46,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:46,034 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-08-22 21:49:46,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:49:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-08-22 21:49:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-22 21:49:46,037 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:46,038 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, 1, 1, 1, 1, 1] [2020-08-22 21:49:46,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:49:46,038 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:46,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:46,039 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-08-22 21:49:46,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:46,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969008422] [2020-08-22 21:49:46,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:46,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:46,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:46,346 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:49:46,346 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:49:46,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:49:46,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:49:46 BoogieIcfgContainer [2020-08-22 21:49:46,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:49:46,453 INFO L168 Benchmark]: Toolchain (without parser) took 2718.14 ms. Allocated memory was 140.0 MB in the beginning and 234.9 MB in the end (delta: 94.9 MB). Free memory was 104.3 MB in the beginning and 130.2 MB in the end (delta: -25.9 MB). Peak memory consumption was 69.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:46,454 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:49:46,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.76 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 104.1 MB in the beginning and 179.2 MB in the end (delta: -75.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:46,458 INFO L168 Benchmark]: Boogie Preprocessor took 70.61 ms. Allocated memory is still 203.9 MB. Free memory was 179.2 MB in the beginning and 176.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:46,459 INFO L168 Benchmark]: RCFGBuilder took 724.76 ms. Allocated memory is still 203.9 MB. Free memory was 176.5 MB in the beginning and 129.1 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:46,460 INFO L168 Benchmark]: TraceAbstraction took 1491.21 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 128.4 MB in the beginning and 130.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:46,469 INFO L336 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 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 424.76 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 104.1 MB in the beginning and 179.2 MB in the end (delta: -75.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.61 ms. Allocated memory is still 203.9 MB. Free memory was 179.2 MB in the beginning and 176.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 724.76 ms. Allocated memory is still 203.9 MB. Free memory was 176.5 MB in the beginning and 129.1 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1491.21 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 128.4 MB in the beginning and 130.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372032558759954, \old(Zero_fmod)=9223372032558759951, \old(Zero_fmod)=9223372032558759941, one_fmod=1, Zero_fmod={3:0}] [L180] double y = 1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={3:0}] [L181] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372032558759946, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L183] CALL isfinite_double(x) VAL [\old(x)=9223372032558759946, one_fmod=1, Zero_fmod={3:0}] [L164] __int32_t hx; VAL [\old(x)=9223372032558759946, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L166] ieee_double_shape_type gh_u; VAL [\old(x)=9223372032558759946, gh_u={5:0}, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L167] gh_u.value = (x) VAL [\old(x)=9223372032558759946, gh_u={5:0}, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L168] EXPR gh_u.parts.msw VAL [\old(x)=9223372032558759946, gh_u={5:0}, gh_u.parts.msw=8589934590, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L168] (hx) = gh_u.parts.msw VAL [\old(x)=9223372032558759946, gh_u={5:0}, gh_u.parts.msw=8589934590, hx=-2, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372032558759946, \result=6, hx=-2, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L183] RET isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L183] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L185] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, one_fmod=1, Zero_fmod={3:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L25] __uint32_t lx, ly, lz; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L29] ew_u.value = (x) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L30] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.msw=4294967292, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L30] (hx) = ew_u.parts.msw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.msw=4294967292, hx=-4, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L31] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.lsw=9223372032558759957, hx=-4, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L31] (lx) = ew_u.parts.lsw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.lsw=9223372032558759957, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L34] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L35] ew_u.value = (y) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L36] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.msw=0, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L36] (hy) = ew_u.parts.msw VAL [(hy) = ew_u.parts.msw=9223372032558759956, \old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.msw=0, hx=-4, hy=0, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L37] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.lsw=9223372032558759948, hx=-4, hy=0, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L37] (ly) = ew_u.parts.lsw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.lsw=9223372032558759948, hx=-4, hy=0, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L39] sx = hx & 0x80000000 VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hx=-4, hy=0, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L40] hx ^= sx VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hy=0, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L41] hy &= 0x7fffffff VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hx=2146435072, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L45] return (x * y) / (x * y); VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hx=2146435072, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L185] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372032558759943, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L185] double res = fmod_double(x, y); VAL [fmod_double(x, y)=9223372032558759943, one_fmod=1, res=9223372032558759943, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L188] COND TRUE res != x VAL [one_fmod=1, res=9223372032558759943, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L189] __VERIFIER_error() VAL [one_fmod=1, res=9223372032558759943, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 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...