/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 14:03:56,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 14:03:56,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 14:03:57,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 14:03:57,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 14:03:57,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 14:03:57,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 14:03:57,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 14:03:57,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 14:03:57,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 14:03:57,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 14:03:57,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 14:03:57,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 14:03:57,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 14:03:57,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 14:03:57,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 14:03:57,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 14:03:57,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 14:03:57,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 14:03:57,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 14:03:57,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 14:03:57,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 14:03:57,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 14:03:57,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 14:03:57,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 14:03:57,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 14:03:57,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 14:03:57,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 14:03:57,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 14:03:57,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 14:03:57,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 14:03:57,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 14:03:57,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 14:03:57,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 14:03:57,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 14:03:57,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 14:03:57,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 14:03:57,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 14:03:57,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 14:03:57,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 14:03:57,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 14:03:57,071 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 [2020-08-21 14:03:57,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 14:03:57,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 14:03:57,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 14:03:57,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 14:03:57,116 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 14:03:57,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 14:03:57,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 14:03:57,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 14:03:57,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 14:03:57,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 14:03:57,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 14:03:57,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 14:03:57,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 14:03:57,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 14:03:57,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 14:03:57,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 14:03:57,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 14:03:57,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 14:03:57,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 14:03:57,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 14:03:57,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 14:03:57,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:03:57,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 14:03:57,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 14:03:57,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 14:03:57,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 14:03:57,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 14:03:57,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 14:03:57,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 14:03:57,121 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 -> log-additional-information=true; [2020-08-21 14:03:57,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 14:03:57,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 14:03:57,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 14:03:57,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 14:03:57,476 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 14:03:57,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2020-08-21 14:03:57,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef703430f/b69c07f9e0d84df9afa9c4c9b0381731/FLAG158f43976 [2020-08-21 14:03:58,002 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 14:03:58,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2020-08-21 14:03:58,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef703430f/b69c07f9e0d84df9afa9c4c9b0381731/FLAG158f43976 [2020-08-21 14:03:58,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef703430f/b69c07f9e0d84df9afa9c4c9b0381731 [2020-08-21 14:03:58,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 14:03:58,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 14:03:58,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 14:03:58,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 14:03:58,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 14:03:58,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1058f97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58, skipping insertion in model container [2020-08-21 14:03:58,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 14:03:58,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 14:03:58,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:03:58,600 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 14:03:58,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:03:58,629 INFO L208 MainTranslator]: Completed translation [2020-08-21 14:03:58,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58 WrapperNode [2020-08-21 14:03:58,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 14:03:58,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 14:03:58,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 14:03:58,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 14:03:58,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (1/1) ... [2020-08-21 14:03:58,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 14:03:58,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 14:03:58,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 14:03:58,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 14:03:58,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (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 [2020-08-21 14:03:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 14:03:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 14:03:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 14:03:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 14:03:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 14:03:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 14:03:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 14:03:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 14:03:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 14:03:58,949 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 14:03:58,949 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 14:03:58,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:03:58 BoogieIcfgContainer [2020-08-21 14:03:58,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 14:03:58,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 14:03:58,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 14:03:58,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 14:03:58,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 02:03:58" (1/3) ... [2020-08-21 14:03:58,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddac8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:03:58, skipping insertion in model container [2020-08-21 14:03:58,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:03:58" (2/3) ... [2020-08-21 14:03:58,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddac8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:03:58, skipping insertion in model container [2020-08-21 14:03:58,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:03:58" (3/3) ... [2020-08-21 14:03:58,961 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2020-08-21 14:03:58,971 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 14:03:58,978 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 14:03:58,992 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 14:03:59,015 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 14:03:59,015 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 14:03:59,016 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 14:03:59,016 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 14:03:59,016 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 14:03:59,016 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 14:03:59,016 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 14:03:59,017 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 14:03:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-08-21 14:03:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-08-21 14:03:59,039 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:03:59,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:03:59,040 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:03:59,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:03:59,045 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2020-08-21 14:03:59,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:03:59,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951682465] [2020-08-21 14:03:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:03:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 14:03:59,140 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 14:03:59,141 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 14:03:59,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 14:03:59,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 02:03:59 BoogieIcfgContainer [2020-08-21 14:03:59,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 14:03:59,163 INFO L168 Benchmark]: Toolchain (without parser) took 762.37 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 102.8 MB in the beginning and 157.7 MB in the end (delta: -54.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-08-21 14:03:59,164 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 14:03:59,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.37 ms. Allocated memory is still 140.0 MB. Free memory was 102.6 MB in the beginning and 93.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-21 14:03:59,166 INFO L168 Benchmark]: Boogie Preprocessor took 24.60 ms. Allocated memory is still 140.0 MB. Free memory was 93.3 MB in the beginning and 91.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-08-21 14:03:59,167 INFO L168 Benchmark]: RCFGBuilder took 297.80 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 91.7 MB in the beginning and 169.8 MB in the end (delta: -78.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-21 14:03:59,168 INFO L168 Benchmark]: TraceAbstraction took 204.86 ms. Allocated memory is still 200.8 MB. Free memory was 169.1 MB in the beginning and 157.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-08-21 14:03:59,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.37 ms. Allocated memory is still 140.0 MB. Free memory was 102.6 MB in the beginning and 93.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.60 ms. Allocated memory is still 140.0 MB. Free memory was 93.3 MB in the beginning and 91.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 297.80 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 91.7 MB in the beginning and 169.8 MB in the end (delta: -78.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204.86 ms. Allocated memory is still 200.8 MB. Free memory was 169.1 MB in the beginning and 157.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 14, overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z [L14] CALL __VERIFIER_assert(r == 2.) [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 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=17occurred 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, 9 NumberOfCodeBlocks, 9 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...