/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/loops/verisec_NetBSD-libc_loop.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:20:46,867 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:20:46,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:20:46,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:20:46,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:20:46,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:20:46,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:20:46,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:20:46,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:20:46,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:20:46,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:20:46,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:20:46,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:20:46,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:20:46,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:20:46,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:20:46,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:20:46,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:20:46,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:20:46,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:20:46,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:20:46,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:20:46,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:20:46,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:20:46,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:20:46,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:20:46,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:20:46,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:20:46,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:20:46,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:20:46,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:20:46,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:20:46,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:20:46,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:20:46,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:20:46,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:20:46,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:20:46,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:20:46,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:20:46,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:20:46,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:20:46,955 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 17:20:46,981 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 17:20:46,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:20:46,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:20:46,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 17:20:46,983 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 17:20:46,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:20:46,984 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 17:20:46,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 17:20:46,984 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 17:20:46,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 17:20:46,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:20:46,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:20:46,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:20:46,985 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 17:20:46,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 17:20:46,986 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 17:20:46,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:20:46,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:20:46,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 17:20:46,987 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 17:20:46,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 17:20:46,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:20:46,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:20:46,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:20:46,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:20:46,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 17:20:46,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:20:46,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:20:46,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 17:20:46,989 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 17:20:47,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:20:47,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:20:47,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:20:47,505 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 17:20:47,506 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 17:20:47,507 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i
[2020-09-24 17:20:47,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a1a41ac8/87c84894aa8a420b8dfc5d15e5c1a2db/FLAGd85af7d7c
[2020-09-24 17:20:48,163 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 17:20:48,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i
[2020-09-24 17:20:48,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a1a41ac8/87c84894aa8a420b8dfc5d15e5c1a2db/FLAGd85af7d7c
[2020-09-24 17:20:48,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a1a41ac8/87c84894aa8a420b8dfc5d15e5c1a2db
[2020-09-24 17:20:48,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:20:48,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:20:48,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:20:48,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:20:48,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:20:48,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:48,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770ea115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48, skipping insertion in model container
[2020-09-24 17:20:48,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:48,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 17:20:48,581 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:20:48,834 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:20:48,850 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 17:20:48,876 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:20:48,896 INFO L208 MainTranslator]: Completed translation
[2020-09-24 17:20:48,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48 WrapperNode
[2020-09-24 17:20:48,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:20:48,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:20:48,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:20:48,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:20:49,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:49,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:49,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:49,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:49,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:49,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:49,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (1/1) ...
[2020-09-24 17:20:49,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:20:49,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:20:49,056 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:20:49,056 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:20:49,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (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 17:20:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:20:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:20:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 17:20:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2
[2020-09-24 17:20:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:20:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:20:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 17:20:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure glob2
[2020-09-24 17:20:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 17:20:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:20:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 17:20:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 17:20:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:20:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:20:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 17:20:49,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:20:49,511 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 17:20:49,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:49 BoogieIcfgContainer
[2020-09-24 17:20:49,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:20:49,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:20:49,526 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:20:49,533 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:20:49,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:20:48" (1/3) ...
[2020-09-24 17:20:49,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53044873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:49, skipping insertion in model container
[2020-09-24 17:20:49,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:48" (2/3) ...
[2020-09-24 17:20:49,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53044873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:49, skipping insertion in model container
[2020-09-24 17:20:49,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:49" (3/3) ...
[2020-09-24 17:20:49,543 INFO L109 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i
[2020-09-24 17:20:49,562 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:20:49,573 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:20:49,594 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:20:49,621 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:20:49,622 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 17:20:49,622 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:20:49,622 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:20:49,622 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:20:49,622 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 17:20:49,622 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:20:49,623 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:20:49,646 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states.
[2020-09-24 17:20:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-09-24 17:20:49,654 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:20:49,655 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]
[2020-09-24 17:20:49,655 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:20:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:20:49,661 INFO L82 PathProgramCache]: Analyzing trace with hash -331406787, now seen corresponding path program 1 times
[2020-09-24 17:20:49,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:20:49,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349300118]
[2020-09-24 17:20:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:20:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:20:49,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:20:50,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:20:50,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 17:20:50,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:20:50,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478
[2020-09-24 17:20:50,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:20:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 17:20:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-24 17:20:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-24 17:20:50,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:20:50,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:20:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:20:50,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:20:50,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:20:50,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:20:50,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:20:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 17:20:50,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:20:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:20:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:20:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:20:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:20:50,649 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 17:20:50,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349300118]
[2020-09-24 17:20:50,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:20:50,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 17:20:50,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674833868]
[2020-09-24 17:20:50,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 17:20:50,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:20:50,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 17:20:50,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2020-09-24 17:20:50,683 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 9 states.
[2020-09-24 17:20:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:20:51,186 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions.
[2020-09-24 17:20:51,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-24 17:20:51,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21
[2020-09-24 17:20:51,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:20:51,200 INFO L225 Difference]: With dead ends: 76
[2020-09-24 17:20:51,200 INFO L226 Difference]: Without dead ends: 37
[2020-09-24 17:20:51,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210
[2020-09-24 17:20:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2020-09-24 17:20:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34.
[2020-09-24 17:20:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states.
[2020-09-24 17:20:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions.
[2020-09-24 17:20:51,261 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 21
[2020-09-24 17:20:51,262 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:20:51,262 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions.
[2020-09-24 17:20:51,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 17:20:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions.
[2020-09-24 17:20:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-24 17:20:51,264 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:20:51,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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 17:20:51,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:20:51,265 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:20:51,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:20:51,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1840112204, now seen corresponding path program 1 times
[2020-09-24 17:20:51,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:20:51,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498379685]
[2020-09-24 17:20:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:20:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:20:51,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:20:51,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:20:51,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 17:20:51,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:20:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498
[2020-09-24 17:20:51,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:20:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 17:20:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-24 17:20:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-24 17:20:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:20:52,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:20:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:20:52,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:20:52,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:20:52,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:20:52,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:20:52,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 17:20:52,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:20:52,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:20:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:20:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:20:52,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:20:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2020-09-24 17:20:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:20:52,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:20:52,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:20:52,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 17:20:52,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:20:52,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-24 17:20:52,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:20:52,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 17:20:52,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:20:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 17:20:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:20:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:20:52,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498379685]
[2020-09-24 17:20:52,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 17:20:52,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-24 17:20:52,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163214715]
[2020-09-24 17:20:52,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 17:20:52,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:20:52,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 17:20:52,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2020-09-24 17:20:52,062 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 11 states.
[2020-09-24 17:20:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:20:52,549 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions.
[2020-09-24 17:20:52,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-24 17:20:52,549 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31
[2020-09-24 17:20:52,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:20:52,551 INFO L225 Difference]: With dead ends: 49
[2020-09-24 17:20:52,551 INFO L226 Difference]: Without dead ends: 47
[2020-09-24 17:20:52,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342
[2020-09-24 17:20:52,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2020-09-24 17:20:52,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44.
[2020-09-24 17:20:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states.
[2020-09-24 17:20:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions.
[2020-09-24 17:20:52,564 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 31
[2020-09-24 17:20:52,564 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:20:52,564 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions.
[2020-09-24 17:20:52,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 17:20:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions.
[2020-09-24 17:20:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-09-24 17:20:52,566 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:20:52,566 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:20:52,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:20:52,567 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:20:52,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:20:52,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1122821221, now seen corresponding path program 2 times
[2020-09-24 17:20:52,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:20:52,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522424048]
[2020-09-24 17:20:52,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:20:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 17:20:52,590 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 17:20:52,590 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 17:20:52,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 17:20:52,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:20:52 BoogieIcfgContainer
[2020-09-24 17:20:52,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:20:52,617 INFO L168 Benchmark]: Toolchain (without parser) took 4086.05 ms. Allocated memory was 140.5 MB in the beginning and 244.8 MB in the end (delta: 104.3 MB). Free memory was 103.0 MB in the beginning and 199.7 MB in the end (delta: -96.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:52,618 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 17:20:52,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.02 ms. Allocated memory is still 140.5 MB. Free memory was 102.5 MB in the beginning and 92.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:52,620 INFO L168 Benchmark]: Boogie Preprocessor took 157.01 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 180.9 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:52,621 INFO L168 Benchmark]: RCFGBuilder took 469.01 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 165.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:52,622 INFO L168 Benchmark]: TraceAbstraction took 3086.98 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 165.4 MB in the beginning and 199.7 MB in the end (delta: -34.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:52,626 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 363.02 ms. Allocated memory is still 140.5 MB. Free memory was 102.5 MB in the beginning and 92.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 157.01 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 180.9 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 469.01 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 165.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3086.98 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 165.4 MB in the beginning and 199.7 MB in the end (delta: -34.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L12] Char *tmp;
[L29] Char pathbuf[1 +1];
[L31] Char *bound = pathbuf + sizeof(pathbuf) - 1;
[L33] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1
[L35] CALL glob2 (pathbuf, bound)
[L16] Char *p;
[L18] p = pathbuf
[L18] COND TRUE p <= pathlim
[L20] CALL __VERIFIER_assert(p<=tmp)
[L4] COND FALSE !(!(cond))
[L20] RET __VERIFIER_assert(p<=tmp)
[L21] *p = 1
[L18] p++
[L18] COND TRUE p <= pathlim
[L20] CALL __VERIFIER_assert(p<=tmp)
[L4] COND FALSE !(!(cond))
[L20] RET __VERIFIER_assert(p<=tmp)
[L21] *p = 1
[L18] p++
[L18] COND TRUE p <= pathlim
[L20] CALL __VERIFIER_assert(p<=tmp)
[L4] COND TRUE !(cond)
[L5] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 143 SDslu, 162 SDs, 0 SdLazy, 284 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=2, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 6350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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...