/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test10.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:29:05,809 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:29:05,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:29:05,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:29:05,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:29:05,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:29:05,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:29:05,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:29:05,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:29:05,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:29:05,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:29:05,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:29:05,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:29:05,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:29:05,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:29:05,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:29:05,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:29:05,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:29:05,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:29:05,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:29:05,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:29:05,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:29:05,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:29:05,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:29:05,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:29:05,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:29:05,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:29:05,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:29:05,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:29:05,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:29:05,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:29:05,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:29:05,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:29:05,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:29:05,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:29:05,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:29:05,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:29:05,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:29:05,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:29:05,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:29:05,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:29:05,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 20:29:05,986 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 20:29:05,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:29:05,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:29:05,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 20:29:05,988 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 20:29:05,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:29:05,989 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 20:29:05,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 20:29:05,990 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 20:29:05,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 20:29:05,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:29:05,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:29:05,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:29:05,992 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 20:29:05,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 20:29:05,992 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 20:29:05,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:29:05,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:29:05,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 20:29:05,993 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 20:29:05,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 20:29:05,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:29:05,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:29:05,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:29:05,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:29:05,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 20:29:05,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:29:05,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:29:05,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 20:29:05,995 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;
[2020-09-24 20:29:06,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:29:06,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:29:06,496 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:29:06,498 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 20:29:06,499 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 20:29:06,500 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test10.c
[2020-09-24 20:29:06,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd4af5a42/e8cc7ec248e848719f87de8ae7ba2eae/FLAG707812433
[2020-09-24 20:29:07,146 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 20:29:07,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test10.c
[2020-09-24 20:29:07,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd4af5a42/e8cc7ec248e848719f87de8ae7ba2eae/FLAG707812433
[2020-09-24 20:29:07,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd4af5a42/e8cc7ec248e848719f87de8ae7ba2eae
[2020-09-24 20:29:07,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:29:07,555 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:29:07,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:29:07,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:29:07,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:29:07,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:07,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@937f2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07, skipping insertion in model container
[2020-09-24 20:29:07,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:07,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 20:29:07,615 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:29:07,843 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:29:07,861 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 20:29:07,885 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:29:07,907 INFO L208 MainTranslator]: Completed translation
[2020-09-24 20:29:07,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07 WrapperNode
[2020-09-24 20:29:07,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:29:07,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:29:07,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:29:07,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:29:08,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:08,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:08,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:08,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:08,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:08,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:08,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
[2020-09-24 20:29:08,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:29:08,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:29:08,086 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:29:08,086 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:29:08,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:29:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:29:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:29:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2020-09-24 20:29:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:29:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:29:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:29:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2020-09-24 20:29:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:29:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:29:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:29:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:29:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:29:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:29:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:29:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:29:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2020-09-24 20:29:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:29:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:29:08,609 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:29:08,609 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 20:29:08,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:29:08 BoogieIcfgContainer
[2020-09-24 20:29:08,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:29:08,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:29:08,617 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:29:08,621 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:29:08,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:29:07" (1/3) ...
[2020-09-24 20:29:08,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d92591b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:29:08, skipping insertion in model container
[2020-09-24 20:29:08,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:29:07" (2/3) ...
[2020-09-24 20:29:08,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d92591b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:29:08, skipping insertion in model container
[2020-09-24 20:29:08,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:29:08" (3/3) ...
[2020-09-24 20:29:08,625 INFO L109 eAbstractionObserver]: Analyzing ICFG test10.c
[2020-09-24 20:29:08,637 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:29:08,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:29:08,669 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:29:08,700 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:29:08,700 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 20:29:08,700 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:29:08,701 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:29:08,701 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:29:08,701 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 20:29:08,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:29:08,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:29:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states.
[2020-09-24 20:29:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-09-24 20:29:08,735 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 20:29:08,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:29:08,737 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:29:08,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:29:08,744 INFO L82 PathProgramCache]: Analyzing trace with hash -424687121, now seen corresponding path program 1 times
[2020-09-24 20:29:08,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:29:08,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217694849]
[2020-09-24 20:29:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:29:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:29:09,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:13,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:13,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:29:13,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69
[2020-09-24 20:29:13,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 20:29:13,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4725
[2020-09-24 20:29:13,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:29:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-09-24 20:29:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-24 20:29:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-09-24 20:29:13,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 20:29:14,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:29:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:29:14,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:14,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:29:14,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 20:29:14,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:29:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131
[2020-09-24 20:29:14,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:29:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:29:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:29:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 20:29:14,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:29:14,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2020-09-24 20:29:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:29:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:14,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:29:14,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 20:29:14,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:29:14,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 20:29:14,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:29:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 20:29:14,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 20:29:14,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 20:29:14,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:29:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:29:15,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217694849]
[2020-09-24 20:29:15,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:29:15,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22
[2020-09-24 20:29:15,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491751624]
[2020-09-24 20:29:15,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states
[2020-09-24 20:29:15,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:29:15,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2020-09-24 20:29:15,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462
[2020-09-24 20:29:15,159 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 22 states.
[2020-09-24 20:29:16,513 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91
[2020-09-24 20:29:16,833 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99
[2020-09-24 20:29:17,171 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102
[2020-09-24 20:29:17,352 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68
[2020-09-24 20:29:18,007 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66
[2020-09-24 20:29:18,162 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68
[2020-09-24 20:29:18,338 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63
[2020-09-24 20:29:18,474 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61
[2020-09-24 20:29:18,619 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61
[2020-09-24 20:29:18,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:29:18,676 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions.
[2020-09-24 20:29:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2020-09-24 20:29:18,679 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60
[2020-09-24 20:29:18,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:29:18,694 INFO L225 Difference]: With dead ends: 89
[2020-09-24 20:29:18,694 INFO L226 Difference]: Without dead ends: 63
[2020-09-24 20:29:18,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980
[2020-09-24 20:29:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2020-09-24 20:29:18,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63.
[2020-09-24 20:29:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states.
[2020-09-24 20:29:18,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 62 transitions.
[2020-09-24 20:29:18,748 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 62 transitions. Word has length 60
[2020-09-24 20:29:18,749 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:29:18,749 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 62 transitions.
[2020-09-24 20:29:18,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states.
[2020-09-24 20:29:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions.
[2020-09-24 20:29:18,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-09-24 20:29:18,752 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 20:29:18,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:29:18,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:29:18,753 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:29:18,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:29:18,754 INFO L82 PathProgramCache]: Analyzing trace with hash 251788018, now seen corresponding path program 1 times
[2020-09-24 20:29:18,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:29:18,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881853688]
[2020-09-24 20:29:18,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:29:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:29:18,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:20,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:23,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:29:23,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 20:29:23,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:29:23,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048
[2020-09-24 20:29:23,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:29:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-09-24 20:29:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-24 20:29:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-09-24 20:29:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:29:24,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:29:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:29:24,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:24,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:29:24,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 20:29:24,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:29:24,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146
[2020-09-24 20:29:24,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:29:24,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:29:24,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:29:24,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 20:29:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:29:24,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2020-09-24 20:29:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:29:24,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:29:24,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:29:24,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 20:29:24,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:29:24,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74
[2020-09-24 20:29:24,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:29:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 20:29:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 20:29:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 20:29:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:29:25,284 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37
[2020-09-24 20:29:25,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:29:25,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881853688]
[2020-09-24 20:29:25,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:29:25,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24
[2020-09-24 20:29:25,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091208115]
[2020-09-24 20:29:25,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states
[2020-09-24 20:29:25,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:29:25,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2020-09-24 20:29:25,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552
[2020-09-24 20:29:25,324 INFO L87 Difference]: Start difference. First operand 63 states and 62 transitions. Second operand 24 states.
[2020-09-24 20:29:26,898 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63
[2020-09-24 20:29:28,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:29:28,011 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions.
[2020-09-24 20:29:28,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2020-09-24 20:29:28,012 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 62
[2020-09-24 20:29:28,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:29:28,013 INFO L225 Difference]: With dead ends: 63
[2020-09-24 20:29:28,013 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 20:29:28,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=384, Invalid=1778, Unknown=0, NotChecked=0, Total=2162
[2020-09-24 20:29:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 20:29:28,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 20:29:28,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 20:29:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 20:29:28,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62
[2020-09-24 20:29:28,018 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:29:28,018 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 20:29:28,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states.
[2020-09-24 20:29:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 20:29:28,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 20:29:28,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:29:28,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 20:29:28,381 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44
[2020-09-24 20:29:28,758 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 74
[2020-09-24 20:29:28,884 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57
[2020-09-24 20:29:28,910 INFO L268 CegarLoopResult]: For program point L5-4(line 5) no Hoare annotation was computed.
[2020-09-24 20:29:28,911 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-24 20:29:28,911 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-24 20:29:28,911 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 20:29:28,912 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#p1~0.base| |old(~#p1~0.base)|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(#length)| |#length|) (= ~pp2~0.base |old(~pp2~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |old(~pp1~0.base)| ~pp1~0.base) (= |old(~#a~0.base)| |~#a~0.base|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |old(~#p2~0.base)| |~#p2~0.base|) (= |old(~#p2~0.offset)| |~#p2~0.offset|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |old(~pp1~0.offset)| ~pp1~0.offset) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#p1~0.offset| |old(~#p1~0.offset)|))
[2020-09-24 20:29:28,912 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed.
[2020-09-24 20:29:28,912 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed.
[2020-09-24 20:29:28,912 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-24 20:29:28,912 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed.
[2020-09-24 20:29:28,912 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed.
[2020-09-24 20:29:28,913 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed.
[2020-09-24 20:29:28,913 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed.
[2020-09-24 20:29:28,913 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed.
[2020-09-24 20:29:28,913 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed.
[2020-09-24 20:29:28,913 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 20:29:28,913 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed.
[2020-09-24 20:29:28,914 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed.
[2020-09-24 20:29:28,914 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed.
[2020-09-24 20:29:28,914 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed.
[2020-09-24 20:29:28,914 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed.
[2020-09-24 20:29:28,914 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed.
[2020-09-24 20:29:28,914 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed.
[2020-09-24 20:29:28,914 INFO L268 CegarLoopResult]: For program point fEXIT(lines 9 14) no Hoare annotation was computed.
[2020-09-24 20:29:28,915 INFO L264 CegarLoopResult]: At program point fENTRY(lines 9 14) the Hoare annotation is: (or (not (= |~#p1~0.offset| ~pp1~0.offset)) (= |~#b~0.base| |old(~pp2~0.base)|) (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |#memory_int| |old(#memory_int)|) (= ~pp2~0.base |old(~pp2~0.base)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|))) (= |~#p1~0.base| |~#p2~0.base|) (= |~#a~0.base| |old(~pp2~0.base)|) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p2~0.base|) |~#p2~0.offset|) |~#b~0.offset|)) (not (= |~#p1~0.base| ~pp1~0.base)) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (not (= (select (select |old(#memory_$Pointer$.base)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select |old(#memory_$Pointer$.offset)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|) |~#b~0.offset|)) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |~#p2~0.base|) |~#p2~0.offset|))) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|)) (= |~#b~0.base| |~#p1~0.base|))
[2020-09-24 20:29:28,915 INFO L268 CegarLoopResult]: For program point fFINAL(lines 9 14) no Hoare annotation was computed.
[2020-09-24 20:29:28,915 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 20:29:28,915 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#p1~0.base|)) (= (select |#valid| |~#a~0.base|) 1) (not (= |~#p1~0.base| |~#p2~0.base|)) (= (select |#valid| |~#b~0.base|) 1) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#p2~0.base|)) (not (= (select |#valid| |~#p1~0.base|) 0)) (not (= |~#b~0.base| |~#a~0.base|)) (not (= |~#p1~0.base| |~#a~0.base|)))
[2020-09-24 20:29:28,916 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 20:29:28,916 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 20:29:28,916 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#p1~0.base| |~#p2~0.base|) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (and (= |~#b~0.base| (select (select |#memory_$Pointer$.base| |~#p2~0.base|) |~#p2~0.offset|)) (not (= |~#b~0.base| ~pp2~0.base)) (= (select (select |#memory_$Pointer$.offset| ~pp2~0.base) ~pp2~0.offset) |~#b~0.offset|) (= (select (select |#memory_$Pointer$.offset| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|) (not (= ~pp2~0.base |~#a~0.base|)) (= |~#p1~0.offset| ~pp1~0.offset) (= |~#p1~0.base| ~pp1~0.base) (= |~#b~0.base| (select (select |#memory_$Pointer$.base| ~pp2~0.base) ~pp2~0.offset)) (= (select (select |#memory_$Pointer$.offset| |~#p2~0.base|) |~#p2~0.offset|) |~#b~0.offset|) (= (select (select |#memory_$Pointer$.base| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p1~0.base|))
[2020-09-24 20:29:28,916 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed.
[2020-09-24 20:29:28,916 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed.
[2020-09-24 20:29:28,917 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed.
[2020-09-24 20:29:28,917 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed.
[2020-09-24 20:29:28,917 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 49) no Hoare annotation was computed.
[2020-09-24 20:29:28,917 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed.
[2020-09-24 20:29:28,917 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed.
[2020-09-24 20:29:28,917 INFO L268 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed.
[2020-09-24 20:29:28,918 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-24 20:29:28,918 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed.
[2020-09-24 20:29:28,918 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed.
[2020-09-24 20:29:28,918 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed.
[2020-09-24 20:29:28,918 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,918 INFO L268 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,919 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,919 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,919 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,919 INFO L268 CegarLoopResult]: For program point L41-6(lines 41 43) no Hoare annotation was computed.
[2020-09-24 20:29:28,919 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,919 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed.
[2020-09-24 20:29:28,920 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,920 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed.
[2020-09-24 20:29:28,920 INFO L268 CegarLoopResult]: For program point L41-9(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,920 INFO L268 CegarLoopResult]: For program point L41-10(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,920 INFO L268 CegarLoopResult]: For program point L41-11(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,920 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed.
[2020-09-24 20:29:28,921 INFO L268 CegarLoopResult]: For program point L41-12(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,921 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed.
[2020-09-24 20:29:28,921 INFO L268 CegarLoopResult]: For program point L41-13(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,921 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed.
[2020-09-24 20:29:28,921 INFO L268 CegarLoopResult]: For program point L41-14(line 41) no Hoare annotation was computed.
[2020-09-24 20:29:28,921 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed.
[2020-09-24 20:29:28,921 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed.
[2020-09-24 20:29:28,922 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 49) no Hoare annotation was computed.
[2020-09-24 20:29:28,922 INFO L264 CegarLoopResult]: At program point L42(lines 16 49) the Hoare annotation is: (or (= |~#p2~0.base| |~#b~0.base|) (= |~#p2~0.base| |~#p1~0.base|) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#a~0.base| |~#p1~0.base|) (= |~#p2~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#a~0.base| |~#b~0.base|) (= |~#p1~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)))
[2020-09-24 20:29:28,922 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed.
[2020-09-24 20:29:28,922 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed.
[2020-09-24 20:29:28,922 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed.
[2020-09-24 20:29:28,923 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed.
[2020-09-24 20:29:28,923 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 49) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#p1~0.base| |~#p2~0.base|) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p1~0.base|) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |#memory_int| |old(#memory_int)|) (= |old(~pp1~0.offset)| ~pp1~0.offset) (= ~pp2~0.base |old(~pp2~0.base)|) (= |old(~pp1~0.base)| ~pp1~0.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)))
[2020-09-24 20:29:28,923 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed.
[2020-09-24 20:29:28,923 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed.
[2020-09-24 20:29:28,923 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed.
[2020-09-24 20:29:28,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:29:28 BoogieIcfgContainer
[2020-09-24 20:29:28,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:29:28,950 INFO L168 Benchmark]: Toolchain (without parser) took 21401.76 ms. Allocated memory was 141.0 MB in the beginning and 401.6 MB in the end (delta: 260.6 MB). Free memory was 104.1 MB in the beginning and 330.4 MB in the end (delta: -226.3 MB). Peak memory consumption was 267.7 MB. Max. memory is 7.1 GB.
[2020-09-24 20:29:28,950 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-09-24 20:29:28,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.24 ms. Allocated memory is still 141.0 MB. Free memory was 103.4 MB in the beginning and 93.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
[2020-09-24 20:29:28,952 INFO L168 Benchmark]: Boogie Preprocessor took 176.83 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 93.3 MB in the beginning and 184.6 MB in the end (delta: -91.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB.
[2020-09-24 20:29:28,953 INFO L168 Benchmark]: RCFGBuilder took 529.76 ms. Allocated memory is still 206.6 MB. Free memory was 184.6 MB in the beginning and 161.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB.
[2020-09-24 20:29:28,954 INFO L168 Benchmark]: TraceAbstraction took 20330.52 ms. Allocated memory was 206.6 MB in the beginning and 401.6 MB in the end (delta: 195.0 MB). Free memory was 160.4 MB in the beginning and 330.4 MB in the end (delta: -170.0 MB). Peak memory consumption was 258.5 MB. Max. memory is 7.1 GB.
[2020-09-24 20:29:28,958 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 349.24 ms. Allocated memory is still 141.0 MB. Free memory was 103.4 MB in the beginning and 93.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 176.83 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 93.3 MB in the beginning and 184.6 MB in the end (delta: -91.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 529.76 ms. Allocated memory is still 206.6 MB. Free memory was 184.6 MB in the beginning and 161.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 20330.52 ms. Allocated memory was 206.6 MB in the beginning and 401.6 MB in the end (delta: 195.0 MB). Free memory was 160.4 MB in the beginning and 330.4 MB in the end (delta: -170.0 MB). Peak memory consumption was 258.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 47]: 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: 16]: Loop Invariant
Derived loop invariant: (((((((p2 == b || p2 == p1) || !(\valid[b] == 1)) || a == p1) || p2 == a) || \valid[p1] == 0) || a == b) || p1 == b) || !(\valid[a] == 1)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 553 SDslu, 320 SDs, 0 SdLazy, 1090 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 392 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 301 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 168932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...