/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/s12iff.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:19:52,870 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:19:52,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:19:52,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:19:52,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:19:52,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:19:52,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:19:52,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:19:52,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:19:52,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:19:52,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:19:52,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:19:52,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:19:52,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:19:52,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:19:52,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:19:52,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:19:52,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:19:52,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:19:52,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:19:52,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:19:52,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:19:52,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:19:52,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:19:52,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:19:52,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:19:52,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:19:52,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:19:52,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:19:52,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:19:52,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:19:52,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:19:52,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:19:52,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:19:52,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:19:52,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:19:52,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:19:52,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:19:52,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:19:52,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:19:52,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:19:52,993 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 17:19:53,035 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 17:19:53,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:19:53,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:19:53,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 17:19:53,038 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 17:19:53,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:19:53,039 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 17:19:53,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 17:19:53,039 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 17:19:53,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 17:19:53,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:19:53,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:19:53,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:19:53,041 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 17:19:53,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 17:19:53,042 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 17:19:53,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:19:53,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:19:53,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 17:19:53,042 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 17:19:53,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 17:19:53,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:19:53,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:19:53,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:19:53,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:19:53,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 17:19:53,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:19:53,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:19:53,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 17:19:53,044 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;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;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;log-additional-information=true;
[2020-09-24 17:19:53,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:19:53,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:19:53,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:19:53,560 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 17:19:53,560 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 17:19:53,562 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s12iff.c
[2020-09-24 17:19:53,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4faa5f17f/53532e4da0f94ed19b7d9b7d9c273140/FLAG3ba57192d
[2020-09-24 17:19:54,194 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 17:19:54,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s12iff.c
[2020-09-24 17:19:54,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4faa5f17f/53532e4da0f94ed19b7d9b7d9c273140/FLAG3ba57192d
[2020-09-24 17:19:54,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4faa5f17f/53532e4da0f94ed19b7d9b7d9c273140
[2020-09-24 17:19:54,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:19:54,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:19:54,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:19:54,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:19:54,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:19:54,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2e2a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54, skipping insertion in model container
[2020-09-24 17:19:54,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 17:19:54,570 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:19:54,811 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:19:54,823 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 17:19:54,849 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:19:54,868 INFO L208 MainTranslator]: Completed translation
[2020-09-24 17:19:54,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54 WrapperNode
[2020-09-24 17:19:54,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:19:54,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:19:54,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:19:54,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:19:54,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:54,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (1/1) ...
[2020-09-24 17:19:55,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:19:55,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:19:55,001 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:19:55,001 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:19:55,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (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 17:19:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:19:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:19:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 17:19:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 17:19:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:19:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:19:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 17:19:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 17:19:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 17:19:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 17:19:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 17:19:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:19:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 17:19:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 17:19:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 17:19:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 17:19:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 17:19:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:19:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:19:55,451 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:19:55,452 INFO L295 CfgBuilder]: Removed 3 assume(true) statements.
[2020-09-24 17:19:55,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:55 BoogieIcfgContainer
[2020-09-24 17:19:55,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:19:55,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:19:55,467 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:19:55,473 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:19:55,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:19:54" (1/3) ...
[2020-09-24 17:19:55,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b9de53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:55, skipping insertion in model container
[2020-09-24 17:19:55,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:54" (2/3) ...
[2020-09-24 17:19:55,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b9de53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:55, skipping insertion in model container
[2020-09-24 17:19:55,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:55" (3/3) ...
[2020-09-24 17:19:55,479 INFO L109 eAbstractionObserver]: Analyzing ICFG s12iff.c
[2020-09-24 17:19:55,488 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:19:55,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:19:55,518 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:19:55,550 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:19:55,550 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 17:19:55,550 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:19:55,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:19:55,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:19:55,550 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 17:19:55,550 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:19:55,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:19:55,574 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states.
[2020-09-24 17:19:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-24 17:19:55,582 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:55,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:55,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:55,590 INFO L82 PathProgramCache]: Analyzing trace with hash 350973390, now seen corresponding path program 1 times
[2020-09-24 17:19:55,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:55,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34183855]
[2020-09-24 17:19:55,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:55,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:55,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:56,132 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:56,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 17:19:56,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 17:19:56,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366
[2020-09-24 17:19:56,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36
[2020-09-24 17:19:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:56,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 17:19:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:19:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:56,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:56,243 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:56,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:19:56,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 17:19:56,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:56,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:56,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-24 17:19:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:56,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:56,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:56,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 17:19:56,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:56,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 17:19:56,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:56,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:19:56,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34183855]
[2020-09-24 17:19:56,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:19:56,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 17:19:56,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220098757]
[2020-09-24 17:19:56,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 17:19:56,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:19:56,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 17:19:56,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 17:19:56,306 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states.
[2020-09-24 17:19:56,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:19:56,543 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions.
[2020-09-24 17:19:56,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 17:19:56,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33
[2020-09-24 17:19:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:19:56,558 INFO L225 Difference]: With dead ends: 143
[2020-09-24 17:19:56,558 INFO L226 Difference]: Without dead ends: 68
[2020-09-24 17:19:56,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 17:19:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2020-09-24 17:19:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2020-09-24 17:19:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-09-24 17:19:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions.
[2020-09-24 17:19:56,621 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33
[2020-09-24 17:19:56,622 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:19:56,622 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions.
[2020-09-24 17:19:56,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 17:19:56,623 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions.
[2020-09-24 17:19:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-24 17:19:56,624 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:56,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:56,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:19:56,625 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:56,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1688115303, now seen corresponding path program 1 times
[2020-09-24 17:19:56,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:56,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294962733]
[2020-09-24 17:19:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:56,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:56,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:57,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:57,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 17:19:57,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 17:19:57,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 718
[2020-09-24 17:19:57,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 17:19:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 17:19:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-24 17:19:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:19:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:57,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:57,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:57,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:19:57,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:57,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 17:19:57,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:57,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:57,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:57,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:57,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:57,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-24 17:19:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:57,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:57,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:57,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 17:19:57,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:57,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 17:19:57,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:57,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 17:19:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:57,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 17:19:57,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:19:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:19:57,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294962733]
[2020-09-24 17:19:57,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:19:57,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 17:19:57,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566851942]
[2020-09-24 17:19:57,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 17:19:57,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:19:57,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 17:19:57,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-24 17:19:57,454 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states.
[2020-09-24 17:19:57,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:19:57,691 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions.
[2020-09-24 17:19:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-24 17:19:57,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33
[2020-09-24 17:19:57,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:19:57,693 INFO L225 Difference]: With dead ends: 111
[2020-09-24 17:19:57,694 INFO L226 Difference]: Without dead ends: 71
[2020-09-24 17:19:57,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-24 17:19:57,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2020-09-24 17:19:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2020-09-24 17:19:57,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states.
[2020-09-24 17:19:57,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions.
[2020-09-24 17:19:57,707 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 33
[2020-09-24 17:19:57,707 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:19:57,708 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions.
[2020-09-24 17:19:57,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 17:19:57,708 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions.
[2020-09-24 17:19:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-09-24 17:19:57,710 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:57,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:57,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:19:57,711 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:57,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:57,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1790069826, now seen corresponding path program 1 times
[2020-09-24 17:19:57,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:57,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128987400]
[2020-09-24 17:19:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 17:19:57,743 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 17:19:57,743 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 17:19:57,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 17:19:57,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:19:57 BoogieIcfgContainer
[2020-09-24 17:19:57,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:19:57,776 INFO L168 Benchmark]: Toolchain (without parser) took 3265.48 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 102.8 MB in the beginning and 132.8 MB in the end (delta: -30.1 MB). Peak memory consumption was 65.4 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:57,777 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 17:19:57,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.99 ms. Allocated memory is still 140.0 MB. Free memory was 102.1 MB in the beginning and 91.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:57,779 INFO L168 Benchmark]: Boogie Preprocessor took 130.40 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 180.2 MB in the end (delta: -88.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:57,780 INFO L168 Benchmark]: RCFGBuilder took 462.83 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 157.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:57,781 INFO L168 Benchmark]: TraceAbstraction took 2305.36 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 157.2 MB in the beginning and 132.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:57,785 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 350.99 ms. Allocated memory is still 140.0 MB. Free memory was 102.1 MB in the beginning and 91.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 130.40 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 180.2 MB in the end (delta: -88.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 462.83 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 157.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2305.36 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 157.2 MB in the beginning and 132.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L17] int N;
[L21] N = __VERIFIER_nondet_int()
[L22] COND FALSE !(N <= 0)
[L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int))
[L11] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int))
[L25] int i;
[L26] long long sum[1];
[L27] int *a = malloc(sizeof(int)*N);
[L29] sum[0] = 1
[L30] i=0
[L30] COND TRUE i<N
[L32] a[i] = 1
[L30] i++
[L30] COND FALSE !(i<N)
[L35] i=0
[L35] COND TRUE i<N
[L37] EXPR a[i]
[L37] COND TRUE a[i] == 1
[L38] EXPR a[i]
[L38] a[i] = a[i] + 1
[L35] i++
[L35] COND FALSE !(i<N)
[L44] i=0
[L44] COND TRUE i<N
[L46] EXPR a[i]
[L46] COND TRUE a[i] == 2
[L47] EXPR sum[0]
[L47] EXPR a[i]
[L47] sum[0] = sum[0] + a[i]
[L44] i++
[L44] COND FALSE !(i<N)
[L53] EXPR sum[0]
[L53] CALL __VERIFIER_assert(sum[0] == 2*N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 103 SDslu, 31 SDs, 0 SdLazy, 168 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 3648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect!
Received shutdown request...