/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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-adbd35c
[2020-10-12 15:43:24,918 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-12 15:43:24,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 15:43:24,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 15:43:24,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 15:43:24,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 15:43:24,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 15:43:24,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 15:43:24,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 15:43:24,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 15:43:24,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 15:43:24,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 15:43:24,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 15:43:24,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 15:43:24,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 15:43:24,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 15:43:24,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 15:43:24,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 15:43:24,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 15:43:24,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 15:43:24,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 15:43:24,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 15:43:24,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 15:43:24,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 15:43:25,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 15:43:25,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 15:43:25,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 15:43:25,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 15:43:25,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 15:43:25,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 15:43:25,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 15:43:25,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 15:43:25,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 15:43:25,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 15:43:25,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 15:43:25,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 15:43:25,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 15:43:25,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 15:43:25,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 15:43:25,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 15:43:25,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 15:43:25,011 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
[2020-10-12 15:43:25,032 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-12 15:43:25,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 15:43:25,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 15:43:25,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-12 15:43:25,034 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-12 15:43:25,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 15:43:25,035 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-12 15:43:25,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-12 15:43:25,035 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-12 15:43:25,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-12 15:43:25,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 15:43:25,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 15:43:25,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 15:43:25,036 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-12 15:43:25,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-12 15:43:25,037 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-12 15:43:25,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-12 15:43:25,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 15:43:25,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-12 15:43:25,037 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-12 15:43:25,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-12 15:43:25,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 15:43:25,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 15:43:25,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 15:43:25,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 15:43:25,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-12 15:43:25,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 15:43:25,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 15:43:25,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-10-12 15:43:25,040 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 -> SequenceOfStatements
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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=true;
[2020-10-12 15:43:25,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 15:43:25,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 15:43:25,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 15:43:25,367 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-12 15:43:25,367 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-12 15:43:25,368 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c
[2020-10-12 15:43:25,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b03d14d3c/2b611311f5dc4abca88520afc689e050/FLAGb053158c3
[2020-10-12 15:43:25,904 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-12 15:43:25,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test21-1.c
[2020-10-12 15:43:25,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b03d14d3c/2b611311f5dc4abca88520afc689e050/FLAGb053158c3
[2020-10-12 15:43:26,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b03d14d3c/2b611311f5dc4abca88520afc689e050
[2020-10-12 15:43:26,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 15:43:26,283 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 15:43:26,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 15:43:26,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 15:43:26,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 15:43:26,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afef70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26, skipping insertion in model container
[2020-10-12 15:43:26,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-12 15:43:26,324 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-12 15:43:26,567 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-12 15:43:26,580 INFO L203 MainTranslator]: Completed pre-run
[2020-10-12 15:43:26,599 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-12 15:43:26,617 INFO L208 MainTranslator]: Completed translation
[2020-10-12 15:43:26,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26 WrapperNode
[2020-10-12 15:43:26,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 15:43:26,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 15:43:26,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 15:43:26,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 15:43:26,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (1/1) ...
[2020-10-12 15:43:26,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 15:43:26,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 15:43:26,823 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 15:43:26,823 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-12 15:43:26,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (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
[2020-10-12 15:43:26,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 15:43:26,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 15:43:26,898 INFO L138 BoogieDeclarations]: Found implementation of procedure init
[2020-10-12 15:43:26,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy
[2020-10-12 15:43:26,898 INFO L138 BoogieDeclarations]: Found implementation of procedure check
[2020-10-12 15:43:26,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 15:43:26,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 15:43:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-12 15:43:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-10-12 15:43:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure init
[2020-10-12 15:43:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-12 15:43:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy
[2020-10-12 15:43:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure check
[2020-10-12 15:43:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-10-12 15:43:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-10-12 15:43:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 15:43:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-12 15:43:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-12 15:43:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 15:43:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-12 15:43:27,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 15:43:27,144 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-10-12 15:43:27,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:43:27 BoogieIcfgContainer
[2020-10-12 15:43:27,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 15:43:27,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 15:43:27,150 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 15:43:27,155 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-12 15:43:27,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:43:26" (1/3) ...
[2020-10-12 15:43:27,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:43:27, skipping insertion in model container
[2020-10-12 15:43:27,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:43:26" (2/3) ...
[2020-10-12 15:43:27,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:43:27, skipping insertion in model container
[2020-10-12 15:43:27,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:43:27" (3/3) ...
[2020-10-12 15:43:27,160 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c
[2020-10-12 15:43:27,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 15:43:27,183 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 15:43:27,201 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 15:43:27,234 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-10-12 15:43:27,235 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-10-12 15:43:27,235 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 15:43:27,235 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 15:43:27,235 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 15:43:27,235 INFO L380 AbstractCegarLoop]: Difference is false
[2020-10-12 15:43:27,235 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 15:43:27,236 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 15:43:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states.
[2020-10-12 15:43:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2020-10-12 15:43:27,263 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 15:43:27,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 15:43:27,265 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 15:43:27,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 15:43:27,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1351082661, now seen corresponding path program 1 times
[2020-10-12 15:43:27,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 15:43:27,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138091029]
[2020-10-12 15:43:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 15:43:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 15:43:27,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 15:43:27,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 15:43:28,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 15:43:28,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-10-12 15:43:28,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-10-12 15:43:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 925
[2020-10-12 15:43:28,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 15:43:28,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-10-12 15:43:28,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20
[2020-10-12 15:43:28,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-10-12 15:43:28,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-10-12 15:43:28,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 15:43:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 15:43:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 15:43:28,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 15:43:28,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 15:43:28,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 15:43:28,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-12 15:43:28,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 15:43:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 15:43:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 15:43:28,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 15:43:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 15:43:28,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 15:43:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 15:43:28,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 15:43:28,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 15:43:28,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 15:43:28,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 15:43:28,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 15:43:28,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 15:43:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 15:43:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 15:43:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 15:43:28,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 15:43:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 15:43:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 15:43:28,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 15:43:28,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 15:43:28,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 15:43:28,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 15:43:28,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 15:43:28,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 15:43:28,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 15:43:28,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 15:43:28,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 15:43:28,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 15:43:28,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-10-12 15:43:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 15:43:28,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 15:43:28,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 15:43:28,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 15:43:28,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 15:43:28,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-10-12 15:43:28,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 15:43:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 15:43:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 15:43:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-10-12 15:43:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 15:43:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-10-12 15:43:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 15:43:28,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 15:43:28,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 15:43:28,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 15:43:28,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 15:43:28,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-10-12 15:43:28,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 15:43:28,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 15:43:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 15:43:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-10-12 15:43:28,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 15:43:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-10-12 15:43:28,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138091029]
[2020-10-12 15:43:28,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 15:43:28,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-10-12 15:43:28,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461286312]
[2020-10-12 15:43:28,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-10-12 15:43:28,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 15:43:28,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-10-12 15:43:28,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2020-10-12 15:43:28,737 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 12 states.
[2020-10-12 15:43:29,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 15:43:29,471 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions.
[2020-10-12 15:43:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2020-10-12 15:43:29,473 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29
[2020-10-12 15:43:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 15:43:29,481 INFO L225 Difference]: With dead ends: 56
[2020-10-12 15:43:29,481 INFO L226 Difference]: Without dead ends: 0
[2020-10-12 15:43:29,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506
[2020-10-12 15:43:29,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-12 15:43:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-12 15:43:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-12 15:43:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-12 15:43:29,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29
[2020-10-12 15:43:29,515 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 15:43:29,516 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-12 15:43:29,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-10-12 15:43:29,516 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-12 15:43:29,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-12 15:43:29,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 15:43:29,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-10-12 15:43:29,660 INFO L268 CegarLoopResult]: For program point initEXIT(lines 11 18) no Hoare annotation was computed.
[2020-10-12 15:43:29,661 INFO L264 CegarLoopResult]: At program point initENTRY(lines 11 18) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|)
[2020-10-12 15:43:29,661 INFO L268 CegarLoopResult]: For program point initFINAL(lines 11 18) no Hoare annotation was computed.
[2020-10-12 15:43:29,661 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-10-12 15:43:29,661 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#length)| |#length|) (= |old(~#d1~0.base)| |~#d1~0.base|) (= |old(~#d1~0.offset)| |~#d1~0.offset|) (= |old(~#d2~0.offset)| |~#d2~0.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |old(~#d2~0.base)| |~#d2~0.base|))
[2020-10-12 15:43:29,661 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-10-12 15:43:29,662 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed.
[2020-10-12 15:43:29,662 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true
[2020-10-12 15:43:29,662 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed.
[2020-10-12 15:43:29,662 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed.
[2020-10-12 15:43:29,662 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-10-12 15:43:29,662 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-10-12 15:43:29,662 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-10-12 15:43:29,663 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-10-12 15:43:29,663 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed.
[2020-10-12 15:43:29,663 INFO L268 CegarLoopResult]: For program point L35-2(lines 35 37) no Hoare annotation was computed.
[2020-10-12 15:43:29,663 INFO L271 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true
[2020-10-12 15:43:29,663 INFO L271 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: true
[2020-10-12 15:43:29,663 INFO L268 CegarLoopResult]: For program point L34-2(lines 34 38) no Hoare annotation was computed.
[2020-10-12 15:43:29,664 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed.
[2020-10-12 15:43:29,664 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed.
[2020-10-12 15:43:29,664 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 30 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|)
[2020-10-12 15:43:29,664 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed.
[2020-10-12 15:43:29,664 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed.
[2020-10-12 15:43:29,664 INFO L264 CegarLoopResult]: At program point L36(lines 31 44) the Hoare annotation is: false
[2020-10-12 15:43:29,665 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base))
[2020-10-12 15:43:29,665 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed.
[2020-10-12 15:43:29,665 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed.
[2020-10-12 15:43:29,665 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true
[2020-10-12 15:43:29,665 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed.
[2020-10-12 15:43:29,665 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed.
[2020-10-12 15:43:29,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:43:29 BoogieIcfgContainer
[2020-10-12 15:43:29,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 15:43:29,679 INFO L168 Benchmark]: Toolchain (without parser) took 3396.22 ms. Allocated memory was 140.5 MB in the beginning and 242.7 MB in the end (delta: 102.2 MB). Free memory was 102.4 MB in the beginning and 172.1 MB in the end (delta: -69.7 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB.
[2020-10-12 15:43:29,680 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-10-12 15:43:29,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.91 ms. Allocated memory is still 140.5 MB. Free memory was 102.2 MB in the beginning and 91.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
[2020-10-12 15:43:29,682 INFO L168 Benchmark]: Boogie Preprocessor took 203.85 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 91.9 MB in the beginning and 184.0 MB in the end (delta: -92.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
[2020-10-12 15:43:29,683 INFO L168 Benchmark]: RCFGBuilder took 325.85 ms. Allocated memory is still 206.6 MB. Free memory was 184.0 MB in the beginning and 167.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB.
[2020-10-12 15:43:29,684 INFO L168 Benchmark]: TraceAbstraction took 2526.47 ms. Allocated memory was 206.6 MB in the beginning and 242.7 MB in the end (delta: 36.2 MB). Free memory was 166.9 MB in the beginning and 172.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB.
[2020-10-12 15:43:29,688 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 334.91 ms. Allocated memory is still 140.5 MB. Free memory was 102.2 MB in the beginning and 91.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 203.85 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 91.9 MB in the beginning and 184.0 MB in the end (delta: -92.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 325.85 ms. Allocated memory is still 206.6 MB. Free memory was 184.0 MB in the beginning and 167.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2526.47 ms. Allocated memory was 206.6 MB in the beginning and 242.7 MB in the end (delta: 36.2 MB). Free memory was 166.9 MB in the beginning and 172.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 42]: 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: 31]: Loop Invariant
Derived loop invariant: 0
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 45 SDslu, 55 SDs, 0 SdLazy, 244 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 70 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 179 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 4088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...