/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 interpolation-heuristic=FIRST --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/structure_assignment.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:01:06,856 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:01:06,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:01:06,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:01:06,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:01:06,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:01:06,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:01:06,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:01:06,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:01:06,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:01:06,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:01:06,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:01:06,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:01:06,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:01:06,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:01:06,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:01:06,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:01:06,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:01:06,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:01:06,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:01:06,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:01:06,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:01:06,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:01:06,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:01:06,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:01:06,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:01:06,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:01:06,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:01:06,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:01:06,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:01:06,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:01:06,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:01:06,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:01:06,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:01:06,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:01:06,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:01:06,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:01:06,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:01:06,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:01:06,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:01:06,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:01:06,948 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 16:01:06,998 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 16:01:06,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:01:07,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:01:07,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 16:01:07,000 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 16:01:07,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:01:07,001 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 16:01:07,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 16:01:07,001 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 16:01:07,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 16:01:07,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:01:07,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:01:07,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:01:07,004 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 16:01:07,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 16:01:07,004 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 16:01:07,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:01:07,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:01:07,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 16:01:07,005 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 16:01:07,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 16:01:07,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:01:07,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:01:07,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:01:07,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:01:07,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 16:01:07,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:01:07,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:01:07,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 16:01:07,007 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true;
[2020-09-24 16:01:07,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:01:07,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:01:07,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:01:07,470 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 16:01:07,470 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 16:01:07,471 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/structure_assignment.i
[2020-09-24 16:01:07,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16ffbdab2/8286f73a2914403ab4c458c535408ecb/FLAG6f59c7176
[2020-09-24 16:01:08,079 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 16:01:08,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/structure_assignment.i
[2020-09-24 16:01:08,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16ffbdab2/8286f73a2914403ab4c458c535408ecb/FLAG6f59c7176
[2020-09-24 16:01:08,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16ffbdab2/8286f73a2914403ab4c458c535408ecb
[2020-09-24 16:01:08,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:01:08,445 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:01:08,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:01:08,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:01:08,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:01:08,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fe5b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08, skipping insertion in model container
[2020-09-24 16:01:08,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 16:01:08,491 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:01:08,698 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:01:08,704 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 16:01:08,730 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:01:08,758 INFO L208 MainTranslator]: Completed translation
[2020-09-24 16:01:08,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08 WrapperNode
[2020-09-24 16:01:08,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:01:08,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:01:08,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:01:08,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:01:08,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
[2020-09-24 16:01:08,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:01:08,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:01:08,880 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:01:08,880 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:01:08,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:01:08,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:01:08,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:01:08,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert
[2020-09-24 16:01:08,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:01:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:01:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert
[2020-09-24 16:01:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:01:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:01:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:01:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:01:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:01:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:01:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:01:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:01:09,222 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:01:09,223 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 16:01:09,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:01:09 BoogieIcfgContainer
[2020-09-24 16:01:09,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:01:09,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:01:09,234 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:01:09,241 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:01:09,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:01:08" (1/3) ...
[2020-09-24 16:01:09,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b96afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:01:09, skipping insertion in model container
[2020-09-24 16:01:09,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:08" (2/3) ...
[2020-09-24 16:01:09,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b96afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:01:09, skipping insertion in model container
[2020-09-24 16:01:09,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:01:09" (3/3) ...
[2020-09-24 16:01:09,260 INFO L109 eAbstractionObserver]: Analyzing ICFG structure_assignment.i
[2020-09-24 16:01:09,272 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:01:09,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:01:09,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:01:09,337 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:01:09,338 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 16:01:09,338 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:01:09,338 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:01:09,338 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:01:09,338 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 16:01:09,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:01:09,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:01:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states.
[2020-09-24 16:01:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-09-24 16:01:09,368 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:01:09,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:01:09,370 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:01:09,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:01:09,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1759541196, now seen corresponding path program 1 times
[2020-09-24 16:01:09,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:01:09,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353159475]
[2020-09-24 16:01:09,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:01:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:01:09,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:01:09,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:01:09,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:01:09,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:01:09,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30
[2020-09-24 16:01:09,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:01:09,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35
[2020-09-24 16:01:09,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:01:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:01:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-24 16:01:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 16:01:09,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:01:09,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:01:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:01:09,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:01:09,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:01:09,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:01:09,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:01:09,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:01:09,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:01:09,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:01:09,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:01:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:01:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:01:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:01:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:01:09,817 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 16:01:09,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353159475]
[2020-09-24 16:01:09,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:01:09,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-24 16:01:09,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531686148]
[2020-09-24 16:01:09,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 16:01:09,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:01:09,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 16:01:09,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:01:09,849 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 7 states.
[2020-09-24 16:01:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:01:10,049 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions.
[2020-09-24 16:01:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-24 16:01:10,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21
[2020-09-24 16:01:10,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:01:10,062 INFO L225 Difference]: With dead ends: 44
[2020-09-24 16:01:10,062 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 16:01:10,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:01:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 16:01:10,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 16:01:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 16:01:10,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 16:01:10,105 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21
[2020-09-24 16:01:10,105 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:01:10,106 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 16:01:10,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 16:01:10,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 16:01:10,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 16:01:10,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:01:10,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 16:01:10,177 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-24 16:01:10,177 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-24 16:01:10,177 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 16:01:10,178 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-24 16:01:10,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 16:01:10,178 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed.
[2020-09-24 16:01:10,179 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 7 10) no Hoare annotation was computed.
[2020-09-24 16:01:10,179 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 7 10) no Hoare annotation was computed.
[2020-09-24 16:01:10,179 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 7 10) the Hoare annotation is: true
[2020-09-24 16:01:10,179 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 16:01:10,179 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-24 16:01:10,180 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 16:01:10,180 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 16:01:10,180 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-09-24 16:01:10,180 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 19 26) no Hoare annotation was computed.
[2020-09-24 16:01:10,181 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed.
[2020-09-24 16:01:10,181 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed.
[2020-09-24 16:01:10,181 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed.
[2020-09-24 16:01:10,181 INFO L268 CegarLoopResult]: For program point L23-2(line 23) no Hoare annotation was computed.
[2020-09-24 16:01:10,181 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed.
[2020-09-24 16:01:10,182 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed.
[2020-09-24 16:01:10,182 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed.
[2020-09-24 16:01:10,182 INFO L268 CegarLoopResult]: For program point L23-4(line 23) no Hoare annotation was computed.
[2020-09-24 16:01:10,182 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed.
[2020-09-24 16:01:10,182 INFO L268 CegarLoopResult]: For program point L21-4(line 21) no Hoare annotation was computed.
[2020-09-24 16:01:10,183 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 19 26) no Hoare annotation was computed.
[2020-09-24 16:01:10,183 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 19 26) the Hoare annotation is: (= |old(#valid)| |#valid|)
[2020-09-24 16:01:10,183 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-24 16:01:10,183 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed.
[2020-09-24 16:01:10,183 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-24 16:01:10,183 INFO L264 CegarLoopResult]: At program point L24-3(line 24) the Hoare annotation is: false
[2020-09-24 16:01:10,184 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed.
[2020-09-24 16:01:10,184 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed.
[2020-09-24 16:01:10,184 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed.
[2020-09-24 16:01:10,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:01:10 BoogieIcfgContainer
[2020-09-24 16:01:10,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 16:01:10,197 INFO L168 Benchmark]: Toolchain (without parser) took 1754.70 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 119.7 MB in the end (delta: -17.0 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB.
[2020-09-24 16:01:10,198 INFO L168 Benchmark]: CDTParser took 0.25 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 16:01:10,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.75 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 91.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
[2020-09-24 16:01:10,200 INFO L168 Benchmark]: Boogie Preprocessor took 119.61 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.7 MB in the beginning and 181.9 MB in the end (delta: -90.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
[2020-09-24 16:01:10,201 INFO L168 Benchmark]: RCFGBuilder took 349.68 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 167.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB.
[2020-09-24 16:01:10,202 INFO L168 Benchmark]: TraceAbstraction took 959.46 ms. Allocated memory is still 203.4 MB. Free memory was 167.1 MB in the beginning and 119.7 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB.
[2020-09-24 16:01:10,206 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 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 313.75 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 91.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 119.61 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.7 MB in the beginning and 181.9 MB in the end (delta: -90.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 349.68 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 167.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 959.46 ms. Allocated memory is still 203.4 MB. Free memory was 167.1 MB in the beginning and 119.7 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 9]: 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
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 11 SDslu, 67 SDs, 0 SdLazy, 59 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 17 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...