/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:00:18,923 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:00:18,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:00:18,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:00:18,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:00:18,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:00:18,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:00:18,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:00:19,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:00:19,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:00:19,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:00:19,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:00:19,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:00:19,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:00:19,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:00:19,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:00:19,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:00:19,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:00:19,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:00:19,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:00:19,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:00:19,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:00:19,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:00:19,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:00:19,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:00:19,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:00:19,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:00:19,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:00:19,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:00:19,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:00:19,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:00:19,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:00:19,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:00:19,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:00:19,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:00:19,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:00:19,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:00:19,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:00:19,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:00:19,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:00:19,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:00:19,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 02:00:19,096 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 02:00:19,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:00:19,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:00:19,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 02:00:19,098 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 02:00:19,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:00:19,098 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 02:00:19,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 02:00:19,099 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 02:00:19,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 02:00:19,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:00:19,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:00:19,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:00:19,100 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 02:00:19,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 02:00:19,101 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 02:00:19,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:00:19,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:00:19,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 02:00:19,101 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 02:00:19,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 02:00:19,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:00:19,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:00:19,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:00:19,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:00:19,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 02:00:19,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:00:19,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:00:19,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 02:00:19,104 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;
[2020-09-25 02:00:19,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:00:19,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:00:19,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:00:19,617 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 02:00:19,617 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 02:00:19,619 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c
[2020-09-25 02:00:19,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acec78cfa/33beff756c0841cba671bd5e56650e96/FLAGd232e06ef
[2020-09-25 02:00:20,284 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 02:00:20,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/signextension-1.c
[2020-09-25 02:00:20,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acec78cfa/33beff756c0841cba671bd5e56650e96/FLAGd232e06ef
[2020-09-25 02:00:20,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acec78cfa/33beff756c0841cba671bd5e56650e96
[2020-09-25 02:00:20,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:00:20,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:00:20,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:00:20,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:00:20,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:00:20,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb9461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20, skipping insertion in model container
[2020-09-25 02:00:20,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 02:00:20,638 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:00:20,848 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:00:20,855 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 02:00:20,872 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:00:20,886 INFO L208 MainTranslator]: Completed translation
[2020-09-25 02:00:20,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20 WrapperNode
[2020-09-25 02:00:20,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:00:20,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:00:20,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:00:20,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:00:20,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
[2020-09-25 02:00:20,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:00:20,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:00:20,918 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:00:20,918 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:00:20,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:00:21,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:00:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:00:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:00:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:00:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:00:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:00:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:00:21,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:00:21,289 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 02:00:21,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:21 BoogieIcfgContainer
[2020-09-25 02:00:21,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:00:21,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:00:21,297 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:00:21,301 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:00:21,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:00:20" (1/3) ...
[2020-09-25 02:00:21,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c128f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:21, skipping insertion in model container
[2020-09-25 02:00:21,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:20" (2/3) ...
[2020-09-25 02:00:21,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c128f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:21, skipping insertion in model container
[2020-09-25 02:00:21,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:21" (3/3) ...
[2020-09-25 02:00:21,306 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-1.c
[2020-09-25 02:00:21,316 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:00:21,325 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:00:21,345 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:00:21,375 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:00:21,375 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 02:00:21,375 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:00:21,375 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:00:21,375 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:00:21,376 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 02:00:21,376 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:00:21,376 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:00:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states.
[2020-09-25 02:00:21,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-09-25 02:00:21,408 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:00:21,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:00:21,409 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:00:21,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:00:21,416 INFO L82 PathProgramCache]: Analyzing trace with hash 49487317, now seen corresponding path program 1 times
[2020-09-25 02:00:21,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:00:21,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242305614]
[2020-09-25 02:00:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:00:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:00:21,580 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:00:21,581 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:00:21,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:00:21,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:00:21 BoogieIcfgContainer
[2020-09-25 02:00:21,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:00:21,613 INFO L168 Benchmark]: Toolchain (without parser) took 1021.67 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 103.2 MB in the beginning and 160.2 MB in the end (delta: -56.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB.
[2020-09-25 02:00:21,615 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 02:00:21,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.48 ms. Allocated memory is still 140.0 MB. Free memory was 102.6 MB in the beginning and 93.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:00:21,617 INFO L168 Benchmark]: Boogie Preprocessor took 29.75 ms. Allocated memory is still 140.0 MB. Free memory was 93.3 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:00:21,618 INFO L168 Benchmark]: RCFGBuilder took 377.24 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 172.2 MB in the end (delta: -80.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
[2020-09-25 02:00:21,619 INFO L168 Benchmark]: TraceAbstraction took 312.64 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 160.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB.
[2020-09-25 02:00:21,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 291.48 ms. Allocated memory is still 140.0 MB. Free memory was 102.6 MB in the beginning and 93.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 29.75 ms. Allocated memory is still 140.0 MB. Free memory was 93.3 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 377.24 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 172.2 MB in the end (delta: -80.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 312.64 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 160.2 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 25]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L5] unsigned short int allbits = -1;
[L6] short int signedallbits = allbits;
[L7] int unsignedtosigned = allbits;
[L8] unsigned int unsignedtounsigned = allbits;
[L9] int signedtosigned = signedallbits;
[L10] unsigned int signedtounsigned = signedallbits;
[L19-L20] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535
&& signedtosigned == -1 && signedtounsigned == 4294967295
[L25] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 incorrect!
Received shutdown request...