/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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/float6.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-c90d42b
[2020-09-24 18:10:11,811 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 18:10:11,818 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 18:10:11,856 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 18:10:11,857 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 18:10:11,866 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 18:10:11,868 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 18:10:11,872 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 18:10:11,875 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 18:10:11,879 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 18:10:11,880 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 18:10:11,881 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 18:10:11,881 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 18:10:11,884 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 18:10:11,887 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 18:10:11,889 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 18:10:11,891 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 18:10:11,892 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 18:10:11,894 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 18:10:11,902 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 18:10:11,904 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 18:10:11,906 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 18:10:11,907 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 18:10:11,908 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 18:10:11,921 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 18:10:11,921 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 18:10:11,921 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 18:10:11,925 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 18:10:11,925 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 18:10:11,928 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 18:10:11,928 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 18:10:11,929 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 18:10:11,930 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 18:10:11,931 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 18:10:11,932 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 18:10:11,932 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 18:10:11,933 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 18:10:11,933 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 18:10:11,933 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 18:10:11,935 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 18:10:11,936 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 18:10:11,937 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
[2020-09-24 18:10:11,989 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 18:10:11,990 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 18:10:11,992 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 18:10:11,992 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 18:10:11,992 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 18:10:11,993 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 18:10:11,993 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 18:10:11,993 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 18:10:11,994 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 18:10:11,994 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 18:10:11,995 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 18:10:11,995 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 18:10:11,995 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 18:10:11,996 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 18:10:11,996 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 18:10:11,996 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 18:10:11,996 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 18:10:11,997 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 18:10:11,997 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 18:10:11,997 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 18:10:11,997 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 18:10:11,997 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 18:10:11,998 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 18:10:11,998 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 18:10:11,998 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 18:10:11,998 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 18:10:11,998 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 18:10:11,999 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 18:10:11,999 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 18:10:11,999 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.rcfgbuilder: Size of a code block -> SingleStatement
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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true;
[2020-09-24 18:10:12,448 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 18:10:12,474 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 18:10:12,479 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 18:10:12,481 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 18:10:12,482 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 18:10:12,483 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float6.c
[2020-09-24 18:10:12,564 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bbca299e/58c589eaa1564f629f1c0a2c3716a91e/FLAG4ef25470e
[2020-09-24 18:10:13,120 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 18:10:13,121 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-cbmc-regression/float6.c
[2020-09-24 18:10:13,131 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bbca299e/58c589eaa1564f629f1c0a2c3716a91e/FLAG4ef25470e
[2020-09-24 18:10:13,456 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bbca299e/58c589eaa1564f629f1c0a2c3716a91e
[2020-09-24 18:10:13,472 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 18:10:13,479 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 18:10:13,480 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 18:10:13,480 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 18:10:13,485 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 18:10:13,486 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,491 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e85a8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13, skipping insertion in model container
[2020-09-24 18:10:13,491 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,501 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 18:10:13,535 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 18:10:13,772 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 18:10:13,779 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 18:10:13,808 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 18:10:13,827 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 18:10:13,828 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13 WrapperNode
[2020-09-24 18:10:13,828 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 18:10:13,829 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 18:10:13,829 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 18:10:13,829 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 18:10:13,926 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,927 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,936 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,936 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,944 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,950 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,952 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (1/1) ...
[2020-09-24 18:10:13,955 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 18:10:13,955 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 18:10:13,955 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 18:10:13,955 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 18:10:13,960 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (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
[2020-09-24 18:10:14,036 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 18:10:14,036 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 18:10:14,036 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 18:10:14,037 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 18:10:14,037 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 18:10:14,037 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float
[2020-09-24 18:10:14,037 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 18:10:14,037 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 18:10:14,038 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 18:10:14,473 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 18:10:14,473 INFO  L295             CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 18:10:14,482 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:10:14 BoogieIcfgContainer
[2020-09-24 18:10:14,482 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 18:10:14,484 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 18:10:14,484 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 18:10:14,488 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 18:10:14,488 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:10:13" (1/3) ...
[2020-09-24 18:10:14,489 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ff5780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:10:14, skipping insertion in model container
[2020-09-24 18:10:14,490 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:13" (2/3) ...
[2020-09-24 18:10:14,490 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ff5780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:10:14, skipping insertion in model container
[2020-09-24 18:10:14,491 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:10:14" (3/3) ...
[2020-09-24 18:10:14,493 INFO  L109   eAbstractionObserver]: Analyzing ICFG float6.c
[2020-09-24 18:10:14,505 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 18:10:14,515 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations.
[2020-09-24 18:10:14,534 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 36 error locations.
[2020-09-24 18:10:14,569 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 18:10:14,569 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 18:10:14,569 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 18:10:14,569 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 18:10:14,570 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 18:10:14,570 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 18:10:14,570 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 18:10:14,570 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 18:10:14,604 INFO  L276                IsEmpty]: Start isEmpty. Operand 122 states.
[2020-09-24 18:10:14,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2020-09-24 18:10:14,610 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 18:10:14,611 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2020-09-24 18:10:14,612 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr30ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr35ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr32ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr33ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr29ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr31ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr34ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:10:14,620 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:10:14,620 INFO  L82        PathProgramCache]: Analyzing trace with hash 1010211507, now seen corresponding path program 1 times
[2020-09-24 18:10:14,629 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:10:14,630 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191473921]
[2020-09-24 18:10:14,630 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:10:14,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 18:10:14,723 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 18:10:14,725 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 18:10:14,730 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 18:10:14,750 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:10:14 BoogieIcfgContainer
[2020-09-24 18:10:14,750 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 18:10:14,754 INFO  L168              Benchmark]: Toolchain (without parser) took 1278.41 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 144.1 MB in the end (delta: -41.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
[2020-09-24 18:10:14,756 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 18:10:14,757 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 348.53 ms. Allocated memory is still 140.5 MB. Free memory was 101.9 MB in the beginning and 91.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
[2020-09-24 18:10:14,758 INFO  L168              Benchmark]: Boogie Preprocessor took 125.80 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 181.0 MB in the end (delta: -89.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB.
[2020-09-24 18:10:14,759 INFO  L168              Benchmark]: RCFGBuilder took 526.94 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 155.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-09-24 18:10:14,760 INFO  L168              Benchmark]: TraceAbstraction took 266.63 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 144.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
[2020-09-24 18:10:14,764 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 348.53 ms. Allocated memory is still 140.5 MB. Free memory was 101.9 MB in the beginning and 91.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 125.80 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 181.0 MB in the end (delta: -89.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 526.94 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 155.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 266.63 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 144.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 7. 
Possible FailurePath: 
[L7]  COND TRUE  !(1.0!=2.0)
[L7]             __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 122 locations, 36 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=122occurred 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, 6 NumberOfCodeBlocks, 6 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...