/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_1-2.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 11:24:06,707 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 11:24:06,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 11:24:06,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 11:24:06,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 11:24:06,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 11:24:06,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 11:24:06,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 11:24:06,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 11:24:06,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 11:24:06,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 11:24:06,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 11:24:06,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 11:24:06,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 11:24:06,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 11:24:06,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 11:24:06,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 11:24:06,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 11:24:06,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 11:24:06,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 11:24:06,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 11:24:06,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 11:24:06,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 11:24:06,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 11:24:06,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 11:24:06,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 11:24:06,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 11:24:06,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 11:24:06,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 11:24:06,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 11:24:06,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 11:24:06,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 11:24:06,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 11:24:06,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 11:24:06,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 11:24:06,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 11:24:06,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 11:24:06,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 11:24:06,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 11:24:06,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 11:24:06,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 11:24:06,788 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 11:24:06,824 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 11:24:06,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 11:24:06,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 11:24:06,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 11:24:06,830 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 11:24:06,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 11:24:06,830 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 11:24:06,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 11:24:06,831 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 11:24:06,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 11:24:06,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 11:24:06,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 11:24:06,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 11:24:06,831 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 11:24:06,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 11:24:06,833 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 11:24:06,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 11:24:06,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 11:24:06,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 11:24:06,835 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 11:24:06,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 11:24:06,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 11:24:06,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 11:24:06,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 11:24:06,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 11:24:06,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 11:24:06,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 11:24:06,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 11:24:06,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 11:24:06,837 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=0.2;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 11:24:07,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 11:24:07,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 11:24:07,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 11:24:07,366 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 11:24:07,366 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 11:24:07,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_1-2.c
[2020-09-25 11:24:07,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34940b7e4/c93dc0bd13c942aa9f94ce2efeb4533f/FLAG569f70afe
[2020-09-25 11:24:08,003 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 11:24:08,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/array_1-2.c
[2020-09-25 11:24:08,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34940b7e4/c93dc0bd13c942aa9f94ce2efeb4533f/FLAG569f70afe
[2020-09-25 11:24:08,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34940b7e4/c93dc0bd13c942aa9f94ce2efeb4533f
[2020-09-25 11:24:08,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 11:24:08,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 11:24:08,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 11:24:08,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 11:24:08,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 11:24:08,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08, skipping insertion in model container
[2020-09-25 11:24:08,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 11:24:08,386 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 11:24:08,602 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:24:08,607 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 11:24:08,632 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:24:08,671 INFO L208 MainTranslator]: Completed translation
[2020-09-25 11:24:08,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08 WrapperNode
[2020-09-25 11:24:08,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 11:24:08,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 11:24:08,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 11:24:08,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 11:24:08,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (1/1) ...
[2020-09-25 11:24:08,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 11:24:08,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 11:24:08,778 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 11:24:08,778 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 11:24:08,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (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 11:24:08,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 11:24:08,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 11:24:08,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 11:24:08,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 11:24:08,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 11:24:08,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 11:24:08,863 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 11:24:08,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 11:24:08,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 11:24:08,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 11:24:08,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 11:24:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 11:24:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 11:24:09,107 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 11:24:09,107 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 11:24:09,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:24:09 BoogieIcfgContainer
[2020-09-25 11:24:09,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 11:24:09,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 11:24:09,129 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 11:24:09,133 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 11:24:09,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:24:08" (1/3) ...
[2020-09-25 11:24:09,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a53c4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:24:09, skipping insertion in model container
[2020-09-25 11:24:09,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:08" (2/3) ...
[2020-09-25 11:24:09,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a53c4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:24:09, skipping insertion in model container
[2020-09-25 11:24:09,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:24:09" (3/3) ...
[2020-09-25 11:24:09,144 INFO L109 eAbstractionObserver]: Analyzing ICFG array_1-2.c
[2020-09-25 11:24:09,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 11:24:09,179 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 11:24:09,202 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 11:24:09,233 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 11:24:09,233 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 11:24:09,233 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 11:24:09,234 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 11:24:09,234 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 11:24:09,234 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 11:24:09,234 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 11:24:09,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 11:24:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states.
[2020-09-25 11:24:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-09-25 11:24:09,264 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:24:09,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 11:24:09,265 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:24:09,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:24:09,272 INFO L82 PathProgramCache]: Analyzing trace with hash -439118320, now seen corresponding path program 1 times
[2020-09-25 11:24:09,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:24:09,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997655722]
[2020-09-25 11:24:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:24:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:09,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:09,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:09,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-09-25 11:24:09,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114
[2020-09-25 11:24:09,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:09,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:24:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-25 11:24:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:24:09,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 11:24:09,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:24:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:09,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:09,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:09,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 11:24:09,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 11:24:09,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:09,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:09,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:24:09,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:24:09,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:24:09,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:24:09,672 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 11:24:09,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997655722]
[2020-09-25 11:24:09,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:24:09,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 11:24:09,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325943898]
[2020-09-25 11:24:09,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 11:24:09,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:24:09,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 11:24:09,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 11:24:09,706 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states.
[2020-09-25 11:24:09,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:24:09,820 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions.
[2020-09-25 11:24:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 11:24:09,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16
[2020-09-25 11:24:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:24:09,835 INFO L225 Difference]: With dead ends: 45
[2020-09-25 11:24:09,836 INFO L226 Difference]: Without dead ends: 21
[2020-09-25 11:24:09,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 11:24:09,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2020-09-25 11:24:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2020-09-25 11:24:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2020-09-25 11:24:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions.
[2020-09-25 11:24:09,889 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 16
[2020-09-25 11:24:09,889 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:24:09,889 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions.
[2020-09-25 11:24:09,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 11:24:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions.
[2020-09-25 11:24:09,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-09-25 11:24:09,890 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:24:09,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 11:24:09,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 11:24:09,891 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:24:09,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:24:09,892 INFO L82 PathProgramCache]: Analyzing trace with hash -696780679, now seen corresponding path program 1 times
[2020-09-25 11:24:09,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:24:09,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464024921]
[2020-09-25 11:24:09,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:24:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:09,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:09,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:09,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-09-25 11:24:09,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:09,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76
[2020-09-25 11:24:09,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:09,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 11:24:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 11:24:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 11:24:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:24:10,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:24:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:10,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:10,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:10,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 11:24:10,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:10,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 11:24:10,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:10,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:24:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:24:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:24:10,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:24:10,057 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 11:24:10,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464024921]
[2020-09-25 11:24:10,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:24:10,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 11:24:10,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767619936]
[2020-09-25 11:24:10,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 11:24:10,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:24:10,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 11:24:10,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 11:24:10,061 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 4 states.
[2020-09-25 11:24:10,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:24:10,135 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions.
[2020-09-25 11:24:10,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-25 11:24:10,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16
[2020-09-25 11:24:10,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:24:10,137 INFO L225 Difference]: With dead ends: 31
[2020-09-25 11:24:10,137 INFO L226 Difference]: Without dead ends: 25
[2020-09-25 11:24:10,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 11:24:10,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2020-09-25 11:24:10,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22.
[2020-09-25 11:24:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2020-09-25 11:24:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions.
[2020-09-25 11:24:10,145 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 16
[2020-09-25 11:24:10,146 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:24:10,146 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions.
[2020-09-25 11:24:10,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 11:24:10,146 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions.
[2020-09-25 11:24:10,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-09-25 11:24:10,147 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:24:10,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 11:24:10,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 11:24:10,148 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:24:10,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:24:10,148 INFO L82 PathProgramCache]: Analyzing trace with hash 908018199, now seen corresponding path program 1 times
[2020-09-25 11:24:10,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:24:10,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881031135]
[2020-09-25 11:24:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:24:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:10,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:10,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:10,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:10,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30
[2020-09-25 11:24:10,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 11:24:10,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363
[2020-09-25 11:24:10,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:10,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 11:24:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-25 11:24:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 11:24:10,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 11:24:10,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:24:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:10,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:10,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:10,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 11:24:10,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:10,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 11:24:10,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:10,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:10,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:24:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:24:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:24:10,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:24:10,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 11:24:10,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881031135]
[2020-09-25 11:24:10,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:24:10,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-25 11:24:10,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271543188]
[2020-09-25 11:24:10,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 11:24:10,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:24:10,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 11:24:10,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2020-09-25 11:24:10,723 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 11 states.
[2020-09-25 11:24:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:24:10,906 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions.
[2020-09-25 11:24:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 11:24:10,906 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21
[2020-09-25 11:24:10,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:24:10,907 INFO L225 Difference]: With dead ends: 23
[2020-09-25 11:24:10,907 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 11:24:10,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240
[2020-09-25 11:24:10,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 11:24:10,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 11:24:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 11:24:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 11:24:10,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21
[2020-09-25 11:24:10,910 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:24:10,910 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 11:24:10,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 11:24:10,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 11:24:10,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 11:24:10,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 11:24:10,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 11:24:10,987 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:10,987 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:10,987 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:10,988 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 11:24:10,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:10,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:10,988 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 11:24:10,989 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 11:24:10,989 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:10,989 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 19) the Hoare annotation is: (= |old(#valid)| |#valid|)
[2020-09-25 11:24:10,989 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 19) no Hoare annotation was computed.
[2020-09-25 11:24:10,989 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= 1023 |main_#t~mem1|) (= 1023 (select (select |#memory_int| |main_~#A~0.base|) (+ |main_~#A~0.offset| 4092))))
[2020-09-25 11:24:10,989 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed.
[2020-09-25 11:24:10,990 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-25 11:24:10,990 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed.
[2020-09-25 11:24:10,990 INFO L268 CegarLoopResult]: For program point L15-1(lines 14 16) no Hoare annotation was computed.
[2020-09-25 11:24:10,990 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 19) no Hoare annotation was computed.
[2020-09-25 11:24:10,990 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed.
[2020-09-25 11:24:10,991 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed.
[2020-09-25 11:24:10,991 INFO L268 CegarLoopResult]: For program point L14-4(line 14) no Hoare annotation was computed.
[2020-09-25 11:24:10,991 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed.
[2020-09-25 11:24:10,991 INFO L264 CegarLoopResult]: At program point L14-5(lines 14 16) the Hoare annotation is: (or (<= main_~i~0 1023) (= 1023 (select (select |#memory_int| |main_~#A~0.base|) (+ |main_~#A~0.offset| 4092))))
[2020-09-25 11:24:10,991 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed.
[2020-09-25 11:24:10,992 INFO L268 CegarLoopResult]: For program point L14-6(lines 14 16) no Hoare annotation was computed.
[2020-09-25 11:24:10,992 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true
[2020-09-25 11:24:10,992 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed.
[2020-09-25 11:24:10,992 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-25 11:24:10,992 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed.
[2020-09-25 11:24:10,992 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed.
[2020-09-25 11:24:10,993 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed.
[2020-09-25 11:24:11,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 11:24:11,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 11:24:11,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:24:11 BoogieIcfgContainer
[2020-09-25 11:24:11,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 11:24:11,023 INFO L168 Benchmark]: Toolchain (without parser) took 2689.80 ms. Allocated memory was 106.4 MB in the beginning and 183.0 MB in the end (delta: 76.5 MB). Free memory was 71.8 MB in the beginning and 88.8 MB in the end (delta: -17.1 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:11,024 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 106.4 MB. Free memory was 89.1 MB in the beginning and 89.0 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB.
[2020-09-25 11:24:11,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.59 ms. Allocated memory was 106.4 MB in the beginning and 122.7 MB in the end (delta: 16.3 MB). Free memory was 71.2 MB in the beginning and 99.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:11,027 INFO L168 Benchmark]: Boogie Preprocessor took 105.42 ms. Allocated memory was 122.7 MB in the beginning and 155.2 MB in the end (delta: 32.5 MB). Free memory was 99.6 MB in the beginning and 140.9 MB in the end (delta: -41.2 MB). Peak memory consumption was 708.8 kB. Max. memory is 7.1 GB.
[2020-09-25 11:24:11,027 INFO L168 Benchmark]: RCFGBuilder took 335.91 ms. Allocated memory is still 155.2 MB. Free memory was 140.7 MB in the beginning and 127.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:11,029 INFO L168 Benchmark]: TraceAbstraction took 1890.45 ms. Allocated memory was 155.2 MB in the beginning and 183.0 MB in the end (delta: 27.8 MB). Free memory was 127.2 MB in the beginning and 88.8 MB in the end (delta: 38.3 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:11,034 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17 ms. Allocated memory is still 106.4 MB. Free memory was 89.1 MB in the beginning and 89.0 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 334.59 ms. Allocated memory was 106.4 MB in the beginning and 122.7 MB in the end (delta: 16.3 MB). Free memory was 71.2 MB in the beginning and 99.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 105.42 ms. Allocated memory was 122.7 MB in the beginning and 155.2 MB in the end (delta: 32.5 MB). Free memory was 99.6 MB in the beginning and 140.9 MB in the end (delta: -41.2 MB). Peak memory consumption was 708.8 kB. Max. memory is 7.1 GB.
* RCFGBuilder took 335.91 ms. Allocated memory is still 155.2 MB. Free memory was 140.7 MB in the beginning and 127.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1890.45 ms. Allocated memory was 155.2 MB in the beginning and 183.0 MB in the end (delta: 27.8 MB). Free memory was 127.2 MB in the beginning and 88.8 MB in the end (delta: 38.3 MB). Peak memory consumption was 66.1 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
* 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: 14]: Loop Invariant
[2020-09-25 11:24:11,046 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
[2020-09-25 11:24:11,047 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int
Derived loop invariant: i <= 1023 || 1023 == unknown-#memory_int-unknown[A][A + 4092]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 22 SDslu, 78 SDs, 0 SdLazy, 104 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 42 HoareAnnotationTreeSize, 9 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 2910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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 correct!
Received shutdown request...