/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:17:51,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:17:51,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:17:51,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:17:51,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:17:51,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:17:51,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:17:51,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:17:51,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:17:51,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:17:51,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:17:51,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:17:51,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:17:51,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:17:51,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:17:51,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:17:51,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:17:51,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:17:51,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:17:51,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:17:51,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:17:51,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:17:51,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:17:51,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:17:51,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:17:51,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:17:51,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:17:51,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:17:51,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:17:51,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:17:51,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:17:51,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:17:51,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:17:51,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:17:51,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:17:51,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:17:51,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:17:51,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:17:51,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:17:51,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:17:51,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:17:51,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:17:51,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:17:51,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:17:51,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:17:51,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:17:51,395 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:17:51,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:17:51,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:17:51,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:17:51,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:17:51,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:17:51,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:17:51,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:17:51,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:17:51,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:17:51,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:17:51,400 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:17:51,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:17:51,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:17:51,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:17:51,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:17:51,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:17:51,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:17:51,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:17:51,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:17:51,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:17:51,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:17:51,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:17:51,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:17:51,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:17:51,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:17:51,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:17:51,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:17:51,923 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:17:51,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:17:51,925 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:17:51,927 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c [2020-09-21 11:17:52,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c4e38b13/aba929385bab4b7aad71075c8109a6ba/FLAG45c324e38 [2020-09-21 11:17:52,584 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:17:52,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1.c [2020-09-21 11:17:52,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c4e38b13/aba929385bab4b7aad71075c8109a6ba/FLAG45c324e38 [2020-09-21 11:17:52,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c4e38b13/aba929385bab4b7aad71075c8109a6ba [2020-09-21 11:17:52,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:17:52,971 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:17:52,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:17:52,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:17:52,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:17:52,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:17:52" (1/1) ... [2020-09-21 11:17:52,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2212aed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:52, skipping insertion in model container [2020-09-21 11:17:52,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:17:52" (1/1) ... [2020-09-21 11:17:52,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:17:53,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:17:53,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:17:53,215 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:17:53,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:17:53,252 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:17:53,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53 WrapperNode [2020-09-21 11:17:53,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:17:53,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:17:53,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:17:53,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:17:53,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... [2020-09-21 11:17:53,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... [2020-09-21 11:17:53,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... [2020-09-21 11:17:53,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... [2020-09-21 11:17:53,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... [2020-09-21 11:17:53,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... [2020-09-21 11:17:53,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... [2020-09-21 11:17:53,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:17:53,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:17:53,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:17:53,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:17:53,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-21 11:17:53,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:17:53,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:17:53,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:17:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:17:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:17:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:17:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:17:53,623 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:17:53,623 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:17:53,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:17:53 BoogieIcfgContainer [2020-09-21 11:17:53,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:17:53,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:17:53,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:17:53,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:17:53,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:17:52" (1/3) ... [2020-09-21 11:17:53,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244a5bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:17:53, skipping insertion in model container [2020-09-21 11:17:53,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:17:53" (2/3) ... [2020-09-21 11:17:53,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244a5bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:17:53, skipping insertion in model container [2020-09-21 11:17:53,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:17:53" (3/3) ... [2020-09-21 11:17:53,640 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-09-21 11:17:53,656 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:17:53,666 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:17:53,685 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:17:53,716 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:17:53,716 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:17:53,716 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:17:53,717 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:17:53,717 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:17:53,717 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:17:53,717 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:17:53,717 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:17:53,740 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-09-21 11:17:53,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-21 11:17:53,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:17:53,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:17:53,749 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:17:53,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:17:53,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2020-09-21 11:17:53,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:17:53,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052284506] [2020-09-21 11:17:53,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:17:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:17:53,872 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:17:53,872 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:17:53,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:17:53,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:17:53 BoogieIcfgContainer [2020-09-21 11:17:53,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:17:53,898 INFO L168 Benchmark]: Toolchain (without parser) took 930.52 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 158.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:17:53,900 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:17:53,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.50 ms. Allocated memory is still 137.9 MB. Free memory was 100.9 MB in the beginning and 91.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:17:53,903 INFO L168 Benchmark]: Boogie Preprocessor took 123.69 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 179.5 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:17:53,904 INFO L168 Benchmark]: RCFGBuilder took 249.77 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 169.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:17:53,905 INFO L168 Benchmark]: TraceAbstraction took 265.26 ms. Allocated memory is still 200.8 MB. Free memory was 168.8 MB in the beginning and 158.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:17:53,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.50 ms. Allocated memory is still 137.9 MB. Free memory was 100.9 MB in the beginning and 91.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.69 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 179.5 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 249.77 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 169.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 265.26 ms. Allocated memory is still 200.8 MB. Free memory was 168.8 MB in the beginning and 158.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...