/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 enumeration-timeout=1000 --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/loop-invariants/bin-suffix-5.c


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


This is Ultimate 0.1.25-eb0fd7c
[2020-09-21 12:37:04,833 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-21 12:37:04,837 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-21 12:37:04,864 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-21 12:37:04,865 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-21 12:37:04,866 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-21 12:37:04,867 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-21 12:37:04,869 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-21 12:37:04,871 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-21 12:37:04,872 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-21 12:37:04,873 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-21 12:37:04,875 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-21 12:37:04,875 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-21 12:37:04,876 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-21 12:37:04,877 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-21 12:37:04,879 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-21 12:37:04,880 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-21 12:37:04,881 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-21 12:37:04,885 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-21 12:37:04,888 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-21 12:37:04,893 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-21 12:37:04,894 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-21 12:37:04,897 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-21 12:37:04,898 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-21 12:37:04,903 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-21 12:37:04,903 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-21 12:37:04,904 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-21 12:37:04,907 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-21 12:37:04,908 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-21 12:37:04,909 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-21 12:37:04,909 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-21 12:37:04,911 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-21 12:37:04,914 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-21 12:37:04,916 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-21 12:37:04,916 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-21 12:37:04,917 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-21 12:37:04,917 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-21 12:37:04,921 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-21 12:37:04,922 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 12:37:04,980 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-21 12:37:04,980 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-21 12:37:04,984 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-21 12:37:04,984 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-21 12:37:04,984 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-21 12:37:04,984 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-21 12:37:04,988 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-21 12:37:04,988 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-21 12:37:04,988 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-21 12:37:04,988 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-21 12:37:04,989 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-21 12:37:04,989 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-21 12:37:04,989 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-21 12:37:04,989 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-21 12:37:04,989 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-21 12:37:04,989 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-21 12:37:04,990 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-21 12:37:04,990 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-21 12:37:04,990 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-21 12:37:04,990 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-21 12:37:04,991 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-21 12:37:04,991 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-21 12:37:04,991 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-21 12:37:04,991 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-21 12:37:04,991 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-21 12:37:04,993 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-21 12:37:04,994 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-21 12:37:04,994 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-21 12:37:04,994 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-21 12:37:04,994 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;enumeration-timeout=1000;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=1000;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=1000;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=1000;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
[2020-09-21 12:37:05,461 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-21 12:37:05,488 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-21 12:37:05,493 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-21 12:37:05,495 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-21 12:37:05,495 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-21 12:37:05,497 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c
[2020-09-21 12:37:05,587 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/049b0447b/d62f7fe78e35499488f81c6e358bdad4/FLAG1a888342a
[2020-09-21 12:37:06,098 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-21 12:37:06,099 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c
[2020-09-21 12:37:06,107 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/049b0447b/d62f7fe78e35499488f81c6e358bdad4/FLAG1a888342a
[2020-09-21 12:37:06,478 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/049b0447b/d62f7fe78e35499488f81c6e358bdad4
[2020-09-21 12:37:06,493 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-21 12:37:06,499 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-21 12:37:06,501 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-21 12:37:06,501 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-21 12:37:06,505 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-21 12:37:06,506 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,511 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0614b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06, skipping insertion in model container
[2020-09-21 12:37:06,511 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,520 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-21 12:37:06,546 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-21 12:37:06,781 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-21 12:37:06,786 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-21 12:37:06,806 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-21 12:37:06,823 INFO  L208         MainTranslator]: Completed translation
[2020-09-21 12:37:06,824 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06 WrapperNode
[2020-09-21 12:37:06,825 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-21 12:37:06,825 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-21 12:37:06,825 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-21 12:37:06,826 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-21 12:37:06,839 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,839 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,917 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,917 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,924 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,930 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,931 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (1/1) ...
[2020-09-21 12:37:06,933 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-21 12:37:06,933 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-21 12:37:06,933 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-21 12:37:06,933 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-21 12:37:06,935 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (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 12:37:07,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-21 12:37:07,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-21 12:37:07,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-21 12:37:07,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-21 12:37:07,005 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-21 12:37:07,005 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-21 12:37:07,005 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-21 12:37:07,005 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-21 12:37:07,007 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-21 12:37:07,007 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-21 12:37:07,210 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-21 12:37:07,210 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-21 12:37:07,219 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:37:07 BoogieIcfgContainer
[2020-09-21 12:37:07,219 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-21 12:37:07,222 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-21 12:37:07,223 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-21 12:37:07,226 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-21 12:37:07,227 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:37:06" (1/3) ...
[2020-09-21 12:37:07,228 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d1af38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:37:07, skipping insertion in model container
[2020-09-21 12:37:07,228 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:37:06" (2/3) ...
[2020-09-21 12:37:07,229 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d1af38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:37:07, skipping insertion in model container
[2020-09-21 12:37:07,229 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:37:07" (3/3) ...
[2020-09-21 12:37:07,232 INFO  L109   eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c
[2020-09-21 12:37:07,244 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-21 12:37:07,256 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-21 12:37:07,278 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-21 12:37:07,306 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-21 12:37:07,306 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-21 12:37:07,306 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-21 12:37:07,306 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-21 12:37:07,307 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-21 12:37:07,307 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-21 12:37:07,307 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-21 12:37:07,307 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-21 12:37:07,326 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states.
[2020-09-21 12:37:07,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-09-21 12:37:07,332 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-21 12:37:07,333 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-21 12:37:07,334 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-21 12:37:07,340 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-21 12:37:07,340 INFO  L82        PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times
[2020-09-21 12:37:07,349 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-21 12:37:07,350 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486214733]
[2020-09-21 12:37:07,350 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-21 12:37:07,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-21 12:37:07,451 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-21 12:37:07,505 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-21 12:37:07,505 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-21 12:37:07,505 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-21 12:37:07,506 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 63
[2020-09-21 12:37:07,508 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-21 12:37:07,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-21 12:37:07,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-21 12:37:07,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-21 12:37:07,509 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-21 12:37:07,535 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-21 12:37:07,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-21 12:37:07,538 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-21 12:37:07,541 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-21 12:37:07,541 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-21 12:37:07,541 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-21 12:37:07,541 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-21 12:37:07,542 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-21 12:37:07,542 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-21 12:37:07,542 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-21 12:37:07,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-21 12:37:07,543 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-21 12:37:07,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-21 12:37:07,550 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486214733]
[2020-09-21 12:37:07,552 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-21 12:37:07,552 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-09-21 12:37:07,553 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739884165]
[2020-09-21 12:37:07,559 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-09-21 12:37:07,560 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-21 12:37:07,577 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-09-21 12:37:07,578 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-09-21 12:37:07,581 INFO  L87              Difference]: Start difference. First operand 19 states. Second operand 2 states.
[2020-09-21 12:37:07,609 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-21 12:37:07,610 INFO  L93              Difference]: Finished difference Result 31 states and 34 transitions.
[2020-09-21 12:37:07,610 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-09-21 12:37:07,611 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2020-09-21 12:37:07,612 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-21 12:37:07,622 INFO  L225             Difference]: With dead ends: 31
[2020-09-21 12:37:07,622 INFO  L226             Difference]: Without dead ends: 12
[2020-09-21 12:37:07,626 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-09-21 12:37:07,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2020-09-21 12:37:07,664 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2020-09-21 12:37:07,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2020-09-21 12:37:07,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2020-09-21 12:37:07,668 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10
[2020-09-21 12:37:07,669 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-21 12:37:07,669 INFO  L479      AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2020-09-21 12:37:07,669 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-09-21 12:37:07,669 INFO  L276                IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2020-09-21 12:37:07,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-09-21 12:37:07,670 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-21 12:37:07,670 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-21 12:37:07,671 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-21 12:37:07,671 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-21 12:37:07,671 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-21 12:37:07,672 INFO  L82        PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times
[2020-09-21 12:37:07,672 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-21 12:37:07,672 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899387645]
[2020-09-21 12:37:07,673 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-21 12:37:07,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-21 12:37:07,687 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-21 12:37:07,687 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-21 12:37:07,694 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-21 12:37:07,712 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:37:07 BoogieIcfgContainer
[2020-09-21 12:37:07,712 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-21 12:37:07,716 INFO  L168              Benchmark]: Toolchain (without parser) took 1219.42 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.7 MB in the beginning and 142.4 MB in the end (delta: -41.8 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB.
[2020-09-21 12:37:07,717 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-21 12:37:07,718 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 324.38 ms. Allocated memory is still 138.9 MB. Free memory was 100.1 MB in the beginning and 90.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
[2020-09-21 12:37:07,719 INFO  L168              Benchmark]: Boogie Preprocessor took 107.50 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 90.6 MB in the beginning and 178.7 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
[2020-09-21 12:37:07,720 INFO  L168              Benchmark]: RCFGBuilder took 286.30 ms. Allocated memory is still 200.3 MB. Free memory was 178.7 MB in the beginning and 167.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB.
[2020-09-21 12:37:07,721 INFO  L168              Benchmark]: TraceAbstraction took 490.50 ms. Allocated memory is still 200.3 MB. Free memory was 166.9 MB in the beginning and 142.4 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB.
[2020-09-21 12:37:07,726 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 324.38 ms. Allocated memory is still 138.9 MB. Free memory was 100.1 MB in the beginning and 90.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 107.50 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 90.6 MB in the beginning and 178.7 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 286.30 ms. Allocated memory is still 200.3 MB. Free memory was 178.7 MB in the beginning and 167.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 490.50 ms. Allocated memory is still 200.3 MB. Free memory was 166.9 MB in the beginning and 142.4 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: overapproximation of bitwiseAnd at line 14. 
Possible FailurePath: 
[L10]              unsigned int x = 5;
[L11]  COND FALSE  !(__VERIFIER_nondet_int())
[L14]  CALL        __VERIFIER_assert((x & 5) == 5)
[L4]   COND TRUE   !(cond)
[L5]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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...