/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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/array-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 04:34:37,347 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 04:34:37,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 04:34:37,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 04:34:37,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 04:34:37,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 04:34:37,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 04:34:37,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 04:34:37,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 04:34:37,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 04:34:37,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 04:34:37,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 04:34:37,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 04:34:37,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 04:34:37,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 04:34:37,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 04:34:37,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 04:34:37,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 04:34:37,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 04:34:37,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 04:34:37,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 04:34:37,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 04:34:37,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 04:34:37,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 04:34:37,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 04:34:37,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 04:34:37,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 04:34:37,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 04:34:37,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 04:34:37,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 04:34:37,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 04:34:37,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 04:34:37,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 04:34:37,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 04:34:37,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 04:34:37,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 04:34:37,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 04:34:37,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 04:34:37,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 04:34:37,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 04:34:37,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 04:34:37,477 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 04:34:37,530 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 04:34:37,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 04:34:37,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 04:34:37,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 04:34:37,534 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 04:34:37,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 04:34:37,535 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 04:34:37,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 04:34:37,536 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 04:34:37,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 04:34:37,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 04:34:37,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 04:34:37,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 04:34:37,538 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 04:34:37,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 04:34:37,538 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 04:34:37,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 04:34:37,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 04:34:37,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 04:34:37,539 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 04:34:37,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 04:34:37,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 04:34:37,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 04:34:37,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 04:34:37,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 04:34:37,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 04:34:37,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 04:34:37,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 04:34:37,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 04:34:37,541 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
[2020-09-25 04:34:38,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 04:34:38,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 04:34:38,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 04:34:38,093 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 04:34:38,094 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 04:34:38,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c
[2020-09-25 04:34:38,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8c51bd4f/5e02a3d08ca44ccab88d8904a3ac1146/FLAG4b1ee8ba1
[2020-09-25 04:34:38,735 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 04:34:38,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/array-1.c
[2020-09-25 04:34:38,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8c51bd4f/5e02a3d08ca44ccab88d8904a3ac1146/FLAG4b1ee8ba1
[2020-09-25 04:34:39,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8c51bd4f/5e02a3d08ca44ccab88d8904a3ac1146
[2020-09-25 04:34:39,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 04:34:39,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 04:34:39,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 04:34:39,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 04:34:39,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 04:34:39,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e8ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39, skipping insertion in model container
[2020-09-25 04:34:39,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 04:34:39,120 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 04:34:39,341 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:34:39,347 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 04:34:39,371 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:34:39,393 INFO L208 MainTranslator]: Completed translation
[2020-09-25 04:34:39,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39 WrapperNode
[2020-09-25 04:34:39,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 04:34:39,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 04:34:39,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 04:34:39,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 04:34:39,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (1/1) ...
[2020-09-25 04:34:39,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 04:34:39,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 04:34:39,520 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 04:34:39,520 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 04:34:39,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (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 04:34:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 04:34:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 04:34:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 04:34:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 04:34:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 04:34:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 04:34:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 04:34:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 04:34:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 04:34:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 04:34:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 04:34:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 04:34:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 04:34:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 04:34:39,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 04:34:39,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 04:34:39,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:34:39 BoogieIcfgContainer
[2020-09-25 04:34:39,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 04:34:39,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 04:34:39,874 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 04:34:39,878 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 04:34:39,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:34:39" (1/3) ...
[2020-09-25 04:34:39,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb7896f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:34:39, skipping insertion in model container
[2020-09-25 04:34:39,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:34:39" (2/3) ...
[2020-09-25 04:34:39,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb7896f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:34:39, skipping insertion in model container
[2020-09-25 04:34:39,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:34:39" (3/3) ...
[2020-09-25 04:34:39,883 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c
[2020-09-25 04:34:39,918 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 04:34:39,941 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 04:34:39,984 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 04:34:40,023 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 04:34:40,024 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 04:34:40,024 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 04:34:40,024 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 04:34:40,024 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 04:34:40,024 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 04:34:40,024 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 04:34:40,025 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 04:34:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states.
[2020-09-25 04:34:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-09-25 04:34:40,055 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 04:34:40,056 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]
[2020-09-25 04:34:40,057 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:34:40,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:34:40,064 INFO L82 PathProgramCache]: Analyzing trace with hash 683487989, now seen corresponding path program 1 times
[2020-09-25 04:34:40,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:34:40,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93222973]
[2020-09-25 04:34:40,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:34:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:34:40,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:40,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:34:40,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-25 04:34:40,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:34:40,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329
[2020-09-25 04:34:40,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:34:40,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:34:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 04:34:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 04:34:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-25 04:34:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 04:34:40,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:34:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:34:40,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:40,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:34:40,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:34:40,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:34:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29
[2020-09-25 04:34:40,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:34:40,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:34:40,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:34:40,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:34:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:34:40,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:34:40,798 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 04:34:40,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93222973]
[2020-09-25 04:34:40,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:34:40,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 04:34:40,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252794479]
[2020-09-25 04:34:40,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 04:34:40,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:34:40,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 04:34:40,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 04:34:40,836 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states.
[2020-09-25 04:34:41,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:34:41,123 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions.
[2020-09-25 04:34:41,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 04:34:41,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22
[2020-09-25 04:34:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:34:41,137 INFO L225 Difference]: With dead ends: 75
[2020-09-25 04:34:41,138 INFO L226 Difference]: Without dead ends: 49
[2020-09-25 04:34:41,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 04:34:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2020-09-25 04:34:41,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37.
[2020-09-25 04:34:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-09-25 04:34:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions.
[2020-09-25 04:34:41,196 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 22
[2020-09-25 04:34:41,197 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:34:41,197 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions.
[2020-09-25 04:34:41,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 04:34:41,197 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions.
[2020-09-25 04:34:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-09-25 04:34:41,199 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 04:34:41,199 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]
[2020-09-25 04:34:41,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 04:34:41,200 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:34:41,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:34:41,200 INFO L82 PathProgramCache]: Analyzing trace with hash 403649603, now seen corresponding path program 1 times
[2020-09-25 04:34:41,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:34:41,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009862392]
[2020-09-25 04:34:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:34:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:34:41,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:41,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:42,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:34:42,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-25 04:34:42,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 04:34:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 848
[2020-09-25 04:34:42,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:34:42,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:34:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 04:34:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 04:34:42,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-25 04:34:42,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 04:34:42,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:34:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:34:42,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:42,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:34:42,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:34:42,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:34:42,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 04:34:42,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:34:42,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:34:42,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:34:42,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:34:42,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:34:42,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:34:42,289 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 04:34:42,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009862392]
[2020-09-25 04:34:42,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 04:34:42,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-09-25 04:34:42,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56948481]
[2020-09-25 04:34:42,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 04:34:42,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:34:42,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 04:34:42,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2020-09-25 04:34:42,294 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 10 states.
[2020-09-25 04:34:42,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:34:42,707 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions.
[2020-09-25 04:34:42,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-25 04:34:42,707 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32
[2020-09-25 04:34:42,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:34:42,709 INFO L225 Difference]: With dead ends: 49
[2020-09-25 04:34:42,709 INFO L226 Difference]: Without dead ends: 43
[2020-09-25 04:34:42,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342
[2020-09-25 04:34:42,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2020-09-25 04:34:42,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40.
[2020-09-25 04:34:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-09-25 04:34:42,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions.
[2020-09-25 04:34:42,720 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 32
[2020-09-25 04:34:42,721 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:34:42,721 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions.
[2020-09-25 04:34:42,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 04:34:42,721 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions.
[2020-09-25 04:34:42,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-25 04:34:42,723 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 04:34:42,723 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]
[2020-09-25 04:34:42,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 04:34:42,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:34:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:34:42,734 INFO L82 PathProgramCache]: Analyzing trace with hash -913737726, now seen corresponding path program 1 times
[2020-09-25 04:34:42,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:34:42,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712161638]
[2020-09-25 04:34:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:34:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:34:42,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:42,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:43,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:34:43,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 04:34:43,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 04:34:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 913
[2020-09-25 04:34:43,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:34:43,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:34:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 04:34:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 04:34:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29
[2020-09-25 04:34:43,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:34:43,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:34:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:34:43,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:34:43,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:34:43,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:34:43,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:34:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 04:34:43,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:34:43,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:34:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:34:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:34:43,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:34:43,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:34:43,906 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 04:34:43,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712161638]
[2020-09-25 04:34:43,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 04:34:43,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-09-25 04:34:43,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443364520]
[2020-09-25 04:34:43,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 04:34:43,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:34:43,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 04:34:43,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2020-09-25 04:34:43,909 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states.
[2020-09-25 04:34:44,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:34:44,309 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions.
[2020-09-25 04:34:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-25 04:34:44,309 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35
[2020-09-25 04:34:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:34:44,310 INFO L225 Difference]: With dead ends: 43
[2020-09-25 04:34:44,310 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 04:34:44,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342
[2020-09-25 04:34:44,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 04:34:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 04:34:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 04:34:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 04:34:44,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35
[2020-09-25 04:34:44,314 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:34:44,314 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 04:34:44,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 04:34:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 04:34:44,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 04:34:44,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 04:34:44,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 04:34:44,528 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-25 04:34:44,528 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-25 04:34:44,528 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 04:34:44,529 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-25 04:34:44,529 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 04:34:44,529 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 04:34:44,529 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 04:34:44,529 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 04:34:44,530 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 04:34:44,530 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed.
[2020-09-25 04:34:44,530 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed.
[2020-09-25 04:34:44,530 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed.
[2020-09-25 04:34:44,530 INFO L268 CegarLoopResult]: For program point L23-2(line 23) no Hoare annotation was computed.
[2020-09-25 04:34:44,530 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed.
[2020-09-25 04:34:44,531 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed.
[2020-09-25 04:34:44,531 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed.
[2020-09-25 04:34:44,531 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 24) no Hoare annotation was computed.
[2020-09-25 04:34:44,531 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-25 04:34:44,531 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed.
[2020-09-25 04:34:44,531 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed.
[2020-09-25 04:34:44,531 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-25 04:34:44,532 INFO L268 CegarLoopResult]: For program point L19-5(line 19) no Hoare annotation was computed.
[2020-09-25 04:34:44,532 INFO L264 CegarLoopResult]: At program point L19-6(lines 19 24) the Hoare annotation is: (let ((.cse1 (<= 1 main_~SIZE~0)) (.cse2 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (.cse3 (<= main_~SIZE~0 1))) (or (let ((.cse0 (div main_~SIZE~0 4294967296))) (and (or (and (<= (+ main_~j~0 1) main_~SIZE~0) (<= .cse0 (div main_~j~0 4294967296))) (and .cse1 (<= (+ main_~menor~0 1) .cse2))) .cse3 (< 0 (+ .cse0 1)))) (and .cse1 (= main_~menor~0 .cse2) .cse3)))
[2020-09-25 04:34:44,532 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed.
[2020-09-25 04:34:44,532 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed.
[2020-09-25 04:34:44,532 INFO L268 CegarLoopResult]: For program point L19-7(lines 19 24) no Hoare annotation was computed.
[2020-09-25 04:34:44,533 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed.
[2020-09-25 04:34:44,533 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (= |old(#valid)| |#valid|)
[2020-09-25 04:34:44,533 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed.
[2020-09-25 04:34:44,533 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (<= 1 main_~SIZE~0)) (.cse2 (<= main_~SIZE~0 1)) (.cse1 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|))) (or (and .cse0 (= main_~menor~0 .cse1) .cse2 (= main_~menor~0 |main_#t~mem5|)) (and .cse0 (<= main_~menor~0 |main_#t~mem5|) .cse2 (<= (+ main_~menor~0 1) .cse1))))
[2020-09-25 04:34:44,534 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed.
[2020-09-25 04:34:44,534 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-25 04:34:44,534 INFO L268 CegarLoopResult]: For program point L22-1(lines 22 23) no Hoare annotation was computed.
[2020-09-25 04:34:44,534 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed.
[2020-09-25 04:34:44,534 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed.
[2020-09-25 04:34:44,534 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed.
[2020-09-25 04:34:44,534 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed.
[2020-09-25 04:34:44,535 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed.
[2020-09-25 04:34:44,535 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed.
[2020-09-25 04:34:44,535 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed.
[2020-09-25 04:34:44,535 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true
[2020-09-25 04:34:44,535 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed.
[2020-09-25 04:34:44,536 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-25 04:34:44,536 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed.
[2020-09-25 04:34:44,536 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed.
[2020-09-25 04:34:44,536 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed.
[2020-09-25 04:34:44,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 04:34:44,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 04:34:44,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 04:34:44,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 04:34:44,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:34:44 BoogieIcfgContainer
[2020-09-25 04:34:44,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 04:34:44,568 INFO L168 Benchmark]: Toolchain (without parser) took 5497.55 ms. Allocated memory was 141.6 MB in the beginning and 244.3 MB in the end (delta: 102.8 MB). Free memory was 104.6 MB in the beginning and 164.0 MB in the end (delta: -59.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB.
[2020-09-25 04:34:44,570 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 04:34:44,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.73 ms. Allocated memory is still 141.6 MB. Free memory was 104.0 MB in the beginning and 94.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2020-09-25 04:34:44,572 INFO L168 Benchmark]: Boogie Preprocessor took 124.67 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 94.2 MB in the beginning and 182.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
[2020-09-25 04:34:44,573 INFO L168 Benchmark]: RCFGBuilder took 352.63 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 166.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB.
[2020-09-25 04:34:44,574 INFO L168 Benchmark]: TraceAbstraction took 4691.01 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 165.8 MB in the beginning and 164.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB.
[2020-09-25 04:34:44,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 319.73 ms. Allocated memory is still 141.6 MB. Free memory was 104.0 MB in the beginning and 94.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 124.67 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 94.2 MB in the beginning and 182.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 352.63 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 166.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 4691.01 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 165.8 MB in the beginning and 164.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
- GenericResult: Unfinished Backtranslation
unknown boogie variable #memory_int
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 19]: Loop Invariant
[2020-09-25 04:34:44,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 04:34:44,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 04:34:44,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 04:34:44,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
Derived loop invariant: ((((j + 1 <= SIZE && SIZE / 4294967296 <= j / 4294967296) || (1 <= SIZE && menor + 1 <= unknown-#memory_int-unknown[array][array])) && SIZE <= 1) && 0 < SIZE / 4294967296 + 1) || ((1 <= SIZE && menor == unknown-#memory_int-unknown[array][array]) && SIZE <= 1)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 138 SDslu, 299 SDs, 0 SdLazy, 345 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 3 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 106 HoareAnnotationTreeSize, 9 FomulaSimplifications, 95 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 74 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 16168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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 correct!
Received shutdown request...