/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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/nec20.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:39:02,769 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:39:02,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:39:02,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:39:02,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:39:02,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:39:02,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:39:02,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:39:02,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:39:02,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:39:02,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:39:02,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:39:02,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:39:02,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:39:02,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:39:02,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:39:02,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:39:02,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:39:02,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:39:02,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:39:02,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:39:02,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:39:02,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:39:02,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:39:02,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:39:02,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:39:02,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:39:02,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:39:02,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:39:02,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:39:02,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:39:02,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:39:02,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:39:02,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:39:02,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:39:02,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:39:02,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:39:02,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:39:02,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:39:02,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:39:02,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:39:02,893 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
[2020-09-25 13:39:02,928 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 13:39:02,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:39:02,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:39:02,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 13:39:02,930 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 13:39:02,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:39:02,931 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 13:39:02,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 13:39:02,931 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 13:39:02,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 13:39:02,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:39:02,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:39:02,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:39:02,932 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 13:39:02,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 13:39:02,933 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 13:39:02,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:39:02,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:39:02,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 13:39:02,933 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 13:39:02,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 13:39:02,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:39:02,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:39:02,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:39:02,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:39:02,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 13:39:02,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:39:02,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:39:02,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 13:39:02,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
[2020-09-25 13:39:03,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:39:03,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:39:03,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:39:03,434 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 13:39:03,434 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 13:39:03,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec20.c
[2020-09-25 13:39:03,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8cc11e8a/a510cfedde274580807f1d6f0575ccf1/FLAG4ace8d71b
[2020-09-25 13:39:04,025 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 13:39:04,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/nec20.c
[2020-09-25 13:39:04,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8cc11e8a/a510cfedde274580807f1d6f0575ccf1/FLAG4ace8d71b
[2020-09-25 13:39:04,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8cc11e8a/a510cfedde274580807f1d6f0575ccf1
[2020-09-25 13:39:04,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:39:04,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:39:04,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:39:04,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:39:04,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:39:04,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26eca38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04, skipping insertion in model container
[2020-09-25 13:39:04,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 13:39:04,441 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:39:04,653 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:39:04,659 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 13:39:04,681 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:39:04,699 INFO L208 MainTranslator]: Completed translation
[2020-09-25 13:39:04,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04 WrapperNode
[2020-09-25 13:39:04,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:39:04,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:39:04,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:39:04,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:39:04,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (1/1) ...
[2020-09-25 13:39:04,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:39:04,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:39:04,819 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:39:04,820 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:39:04,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (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
[2020-09-25 13:39:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:39:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:39:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 13:39:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:39:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:39:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2020-09-25 13:39:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 13:39:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-09-25 13:39:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:39:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:39:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:39:05,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:39:05,162 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 13:39:05,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:05 BoogieIcfgContainer
[2020-09-25 13:39:05,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:39:05,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:39:05,170 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:39:05,174 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:39:05,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:04" (1/3) ...
[2020-09-25 13:39:05,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ec3c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:05, skipping insertion in model container
[2020-09-25 13:39:05,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:04" (2/3) ...
[2020-09-25 13:39:05,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ec3c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:05, skipping insertion in model container
[2020-09-25 13:39:05,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:05" (3/3) ...
[2020-09-25 13:39:05,178 INFO L109 eAbstractionObserver]: Analyzing ICFG nec20.c
[2020-09-25 13:39:05,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:39:05,201 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:39:05,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:39:05,256 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:39:05,257 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 13:39:05,257 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:39:05,257 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:39:05,257 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:39:05,257 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 13:39:05,258 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:39:05,258 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:39:05,297 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states.
[2020-09-25 13:39:05,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-25 13:39:05,305 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 13:39:05,306 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]
[2020-09-25 13:39:05,306 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:05,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:05,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1806400052, now seen corresponding path program 1 times
[2020-09-25 13:39:05,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:05,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152840097]
[2020-09-25 13:39:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:05,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:05,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:05,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-25 13:39:05,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159
[2020-09-25 13:39:05,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:05,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:39:05,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20
[2020-09-25 13:39:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 13:39:05,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 13:39:05,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:05,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:05,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:05,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 13:39:05,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:05,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:39:05,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:05,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:05,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152840097]
[2020-09-25 13:39:05,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:05,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:39:05,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912645384]
[2020-09-25 13:39:05,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:39:05,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:05,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:39:05,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:39:05,826 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states.
[2020-09-25 13:39:05,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:05,975 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions.
[2020-09-25 13:39:05,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-25 13:39:05,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23
[2020-09-25 13:39:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:05,988 INFO L225 Difference]: With dead ends: 65
[2020-09-25 13:39:05,988 INFO L226 Difference]: Without dead ends: 32
[2020-09-25 13:39:05,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:39:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-09-25 13:39:06,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30.
[2020-09-25 13:39:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-09-25 13:39:06,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions.
[2020-09-25 13:39:06,034 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 23
[2020-09-25 13:39:06,035 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:06,035 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions.
[2020-09-25 13:39:06,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:39:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions.
[2020-09-25 13:39:06,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-09-25 13:39:06,037 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 13:39:06,037 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]
[2020-09-25 13:39:06,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:39:06,038 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:06,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1269377587, now seen corresponding path program 1 times
[2020-09-25 13:39:06,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:06,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129443820]
[2020-09-25 13:39:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:06,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:06,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37
[2020-09-25 13:39:06,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:06,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308
[2020-09-25 13:39:06,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:06,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:06,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:06,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19
[2020-09-25 13:39:06,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 13:39:06,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:06,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:06,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:06,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:06,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 13:39:06,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:39:06,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:06,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 13:39:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:06,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129443820]
[2020-09-25 13:39:06,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 13:39:06,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-09-25 13:39:06,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835271246]
[2020-09-25 13:39:06,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:06,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:06,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:06,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:06,604 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 7 states.
[2020-09-25 13:39:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:06,865 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions.
[2020-09-25 13:39:06,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-25 13:39:06,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28
[2020-09-25 13:39:06,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:06,870 INFO L225 Difference]: With dead ends: 55
[2020-09-25 13:39:06,872 INFO L226 Difference]: Without dead ends: 49
[2020-09-25 13:39:06,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132
[2020-09-25 13:39:06,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2020-09-25 13:39:06,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 39.
[2020-09-25 13:39:06,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2020-09-25 13:39:06,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions.
[2020-09-25 13:39:06,892 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 28
[2020-09-25 13:39:06,894 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:06,894 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions.
[2020-09-25 13:39:06,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions.
[2020-09-25 13:39:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-09-25 13:39:06,896 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 13:39:06,896 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]
[2020-09-25 13:39:06,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:39:06,896 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:06,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:06,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1258948973, now seen corresponding path program 1 times
[2020-09-25 13:39:06,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:06,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620596161]
[2020-09-25 13:39:06,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:39:06,919 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:39:06,920 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:39:06,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:39:06,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:39:06 BoogieIcfgContainer
[2020-09-25 13:39:06,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:39:06,955 INFO L168 Benchmark]: Toolchain (without parser) took 2560.92 ms. Allocated memory was 140.5 MB in the beginning and 234.9 MB in the end (delta: 94.4 MB). Free memory was 103.8 MB in the beginning and 177.6 MB in the end (delta: -73.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB.
[2020-09-25 13:39:06,957 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
[2020-09-25 13:39:06,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.97 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 93.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-09-25 13:39:06,959 INFO L168 Benchmark]: Boogie Preprocessor took 118.14 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 181.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:39:06,960 INFO L168 Benchmark]: RCFGBuilder took 349.27 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 166.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:39:06,962 INFO L168 Benchmark]: TraceAbstraction took 1779.90 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 177.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:39:06,975 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 303.97 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 93.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 118.14 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 181.3 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 349.27 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 166.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1779.90 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 177.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L10] int b;
[L13] _Bool k=__VERIFIER_nondet_bool();
[L14] unsigned int i,n,j;
[L15] int a[1025];
[L17] COND TRUE \read(k)
[L18] n=0
[L23] i=0
[L24] j=__VERIFIER_nondet_uint()
[L25] COND FALSE !(j > 10000)
[L28] COND TRUE i <= n
[L29] i++
[L30] j= j +2
[L28] COND FALSE !(i <= n)
[L33] a[i]=0
[L34] CALL __VERIFIER_assert(j<1025)
[L5] COND TRUE !(cond)
[L6] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 102 SDslu, 27 SDs, 0 SdLazy, 120 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 4945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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...