/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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/test07.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:58:13,192 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:58:13,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:58:13,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:58:13,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:58:13,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:58:13,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:58:13,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:58:13,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:58:13,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:58:13,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:58:13,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:58:13,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:58:13,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:58:13,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:58:13,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:58:13,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:58:13,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:58:13,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:58:13,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:58:13,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:58:13,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:58:13,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:58:13,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:58:13,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:58:13,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:58:13,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:58:13,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:58:13,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:58:13,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:58:13,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:58:13,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:58:13,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:58:13,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:58:13,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:58:13,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:58:13,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:58:13,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:58:13,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:58:13,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:58:13,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:58:13,285 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 08:58:13,327 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 08:58:13,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:58:13,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:58:13,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 08:58:13,329 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 08:58:13,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:58:13,330 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 08:58:13,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 08:58:13,330 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 08:58:13,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 08:58:13,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:58:13,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:58:13,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:58:13,331 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 08:58:13,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 08:58:13,332 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 08:58:13,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:58:13,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:58:13,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 08:58:13,332 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 08:58:13,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 08:58:13,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:58:13,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:58:13,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:58:13,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:58:13,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 08:58:13,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:58:13,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:58:13,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 08:58:13,334 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
[2020-09-25 08:58:13,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:58:13,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:58:13,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:58:13,874 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 08:58:13,875 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 08:58:13,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test07.c
[2020-09-25 08:58:13,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11ba16a3c/15ce371d3db042618cf24ab945ad387d/FLAGd6f751439
[2020-09-25 08:58:14,500 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 08:58:14,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test07.c
[2020-09-25 08:58:14,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11ba16a3c/15ce371d3db042618cf24ab945ad387d/FLAGd6f751439
[2020-09-25 08:58:14,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11ba16a3c/15ce371d3db042618cf24ab945ad387d
[2020-09-25 08:58:14,860 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:58:14,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:58:14,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:58:14,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:58:14,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:58:14,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:58:14" (1/1) ...
[2020-09-25 08:58:14,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab41b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:14, skipping insertion in model container
[2020-09-25 08:58:14,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:58:14" (1/1) ...
[2020-09-25 08:58:14,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 08:58:14,914 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:58:15,122 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:58:15,138 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 08:58:15,161 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:58:15,178 INFO L208 MainTranslator]: Completed translation
[2020-09-25 08:58:15,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15 WrapperNode
[2020-09-25 08:58:15,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:58:15,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:58:15,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:58:15,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:58:15,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (1/1) ...
[2020-09-25 08:58:15,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (1/1) ...
[2020-09-25 08:58:15,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (1/1) ...
[2020-09-25 08:58:15,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (1/1) ...
[2020-09-25 08:58:15,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (1/1) ...
[2020-09-25 08:58:15,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (1/1) ...
[2020-09-25 08:58:15,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (1/1) ...
[2020-09-25 08:58:15,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:58:15,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:58:15,302 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:58:15,302 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:58:15,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (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 08:58:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:58:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:58:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2020-09-25 08:58:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:58:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:58:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2020-09-25 08:58:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 08:58:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:58:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 08:58:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:58:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 08:58:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 08:58:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:58:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 08:58:15,663 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:58:15,663 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 08:58:15,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:58:15 BoogieIcfgContainer
[2020-09-25 08:58:15,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:58:15,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:58:15,672 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:58:15,676 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:58:15,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:58:14" (1/3) ...
[2020-09-25 08:58:15,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3f7a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:58:15, skipping insertion in model container
[2020-09-25 08:58:15,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:58:15" (2/3) ...
[2020-09-25 08:58:15,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3f7a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:58:15, skipping insertion in model container
[2020-09-25 08:58:15,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:58:15" (3/3) ...
[2020-09-25 08:58:15,681 INFO L109 eAbstractionObserver]: Analyzing ICFG test07.c
[2020-09-25 08:58:15,697 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:58:15,711 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:58:15,740 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:58:15,780 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:58:15,780 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 08:58:15,780 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:58:15,781 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:58:15,781 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:58:15,781 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 08:58:15,781 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:58:15,782 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:58:15,818 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states.
[2020-09-25 08:58:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-09-25 08:58:15,829 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:58:15,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:58:15,831 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:58:15,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:58:15,840 INFO L82 PathProgramCache]: Analyzing trace with hash 56438835, now seen corresponding path program 1 times
[2020-09-25 08:58:15,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:58:15,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597714700]
[2020-09-25 08:58:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:58:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:58:16,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:17,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:58:17,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-25 08:58:17,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:58:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 943
[2020-09-25 08:58:17,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:58:17,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:58:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 08:58:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-25 08:58:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 08:58:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 08:58:17,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:58:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:58:17,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:17,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:58:17,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-25 08:58:17,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:58:17,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81
[2020-09-25 08:58:17,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:58:17,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:58:17,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 08:58:17,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:58:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:58:17,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:58:17,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-09-25 08:58:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:58:17,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:17,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:58:17,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-25 08:58:17,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:58:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41
[2020-09-25 08:58:17,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:58:17,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:58:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:58:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 08:58:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-25 08:58:17,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:58:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:58:17,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597714700]
[2020-09-25 08:58:17,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:58:17,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2020-09-25 08:58:17,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600978335]
[2020-09-25 08:58:17,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 08:58:17,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:58:18,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 08:58:18,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210
[2020-09-25 08:58:18,015 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 15 states.
[2020-09-25 08:58:18,755 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54
[2020-09-25 08:58:18,913 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58
[2020-09-25 08:58:19,077 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60
[2020-09-25 08:58:19,262 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62
[2020-09-25 08:58:19,458 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66
[2020-09-25 08:58:19,633 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64
[2020-09-25 08:58:19,801 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62
[2020-09-25 08:58:19,961 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58
[2020-09-25 08:58:20,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:58:20,135 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions.
[2020-09-25 08:58:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2020-09-25 08:58:20,138 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41
[2020-09-25 08:58:20,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:58:20,151 INFO L225 Difference]: With dead ends: 67
[2020-09-25 08:58:20,151 INFO L226 Difference]: Without dead ends: 43
[2020-09-25 08:58:20,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=266, Invalid=664, Unknown=0, NotChecked=0, Total=930
[2020-09-25 08:58:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2020-09-25 08:58:20,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2020-09-25 08:58:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states.
[2020-09-25 08:58:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions.
[2020-09-25 08:58:20,199 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 41
[2020-09-25 08:58:20,200 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:58:20,200 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions.
[2020-09-25 08:58:20,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-25 08:58:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions.
[2020-09-25 08:58:20,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2020-09-25 08:58:20,202 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:58:20,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:58:20,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:58:20,203 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:58:20,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:58:20,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1088655632, now seen corresponding path program 1 times
[2020-09-25 08:58:20,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:58:20,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946587535]
[2020-09-25 08:58:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:58:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:58:20,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:20,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:23,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:58:23,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-25 08:58:23,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 08:58:23,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3053
[2020-09-25 08:58:23,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:58:23,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:58:23,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 08:58:23,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39
[2020-09-25 08:58:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-25 08:58:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11
[2020-09-25 08:58:23,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:58:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:58:23,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:23,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:58:23,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-25 08:58:23,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:58:23,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 08:58:23,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:58:23,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:58:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:58:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:58:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:58:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:58:23,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2020-09-25 08:58:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:58:23,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:58:23,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:58:23,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18
[2020-09-25 08:58:23,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:58:23,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-25 08:58:23,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:58:23,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:58:23,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 08:58:23,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:58:23,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-25 08:58:23,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:58:23,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:58:23,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946587535]
[2020-09-25 08:58:23,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:58:23,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 08:58:23,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183826967]
[2020-09-25 08:58:23,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 08:58:23,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:58:23,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 08:58:23,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 08:58:23,549 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand 10 states.
[2020-09-25 08:58:23,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:58:23,780 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions.
[2020-09-25 08:58:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 08:58:23,780 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42
[2020-09-25 08:58:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:58:23,781 INFO L225 Difference]: With dead ends: 43
[2020-09-25 08:58:23,781 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 08:58:23,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182
[2020-09-25 08:58:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 08:58:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 08:58:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 08:58:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 08:58:23,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42
[2020-09-25 08:58:23,786 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:58:23,786 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 08:58:23,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 08:58:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 08:58:23,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 08:58:23,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:58:23,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 08:58:24,097 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed.
[2020-09-25 08:58:24,097 INFO L268 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed.
[2020-09-25 08:58:24,098 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-25 08:58:24,098 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-25 08:58:24,098 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 08:58:24,098 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~p2~0.base |old(~p2~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-25 08:58:24,099 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-25 08:58:24,099 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed.
[2020-09-25 08:58:24,099 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed.
[2020-09-25 08:58:24,099 INFO L268 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed.
[2020-09-25 08:58:24,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 08:58:24,099 INFO L268 CegarLoopResult]: For program point fFINAL(lines 7 15) no Hoare annotation was computed.
[2020-09-25 08:58:24,100 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed.
[2020-09-25 08:58:24,100 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed.
[2020-09-25 08:58:24,100 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed.
[2020-09-25 08:58:24,100 INFO L268 CegarLoopResult]: For program point L9(lines 9 14) no Hoare annotation was computed.
[2020-09-25 08:58:24,100 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed.
[2020-09-25 08:58:24,100 INFO L268 CegarLoopResult]: For program point fEXIT(lines 7 15) no Hoare annotation was computed.
[2020-09-25 08:58:24,101 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed.
[2020-09-25 08:58:24,101 INFO L268 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed.
[2020-09-25 08:58:24,101 INFO L264 CegarLoopResult]: At program point fENTRY(lines 7 15) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1)))
[2020-09-25 08:58:24,101 INFO L268 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed.
[2020-09-25 08:58:24,102 INFO L268 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed.
[2020-09-25 08:58:24,102 INFO L268 CegarLoopResult]: For program point L8-5(line 8) no Hoare annotation was computed.
[2020-09-25 08:58:24,102 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 08:58:24,102 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|)))
[2020-09-25 08:58:24,102 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 08:58:24,102 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 08:58:24,102 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed.
[2020-09-25 08:58:24,103 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed.
[2020-09-25 08:58:24,103 INFO L268 CegarLoopResult]: For program point L29-1(lines 29 31) no Hoare annotation was computed.
[2020-09-25 08:58:24,103 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|))
[2020-09-25 08:58:24,103 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed.
[2020-09-25 08:58:24,103 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed.
[2020-09-25 08:58:24,103 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed.
[2020-09-25 08:58:24,104 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-09-25 08:58:24,104 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed.
[2020-09-25 08:58:24,104 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed.
[2020-09-25 08:58:24,104 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed.
[2020-09-25 08:58:24,104 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed.
[2020-09-25 08:58:24,104 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed.
[2020-09-25 08:58:24,105 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed.
[2020-09-25 08:58:24,105 INFO L268 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed.
[2020-09-25 08:58:24,105 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed.
[2020-09-25 08:58:24,105 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed.
[2020-09-25 08:58:24,105 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed.
[2020-09-25 08:58:24,105 INFO L264 CegarLoopResult]: At program point L30(lines 17 37) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)))
[2020-09-25 08:58:24,106 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base |old(~p2~0.base)|) (= |old(~p2~0.offset)| ~p2~0.offset) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|))
[2020-09-25 08:58:24,106 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-25 08:58:24,106 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed.
[2020-09-25 08:58:24,106 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed.
[2020-09-25 08:58:24,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:58:24 BoogieIcfgContainer
[2020-09-25 08:58:24,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 08:58:24,132 INFO L168 Benchmark]: Toolchain (without parser) took 9269.77 ms. Allocated memory was 143.7 MB in the beginning and 282.6 MB in the end (delta: 138.9 MB). Free memory was 102.2 MB in the beginning and 125.6 MB in the end (delta: -23.4 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB.
[2020-09-25 08:58:24,133 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 08:58:24,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.10 ms. Allocated memory is still 143.7 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2020-09-25 08:58:24,136 INFO L168 Benchmark]: Boogie Preprocessor took 122.07 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 91.8 MB in the beginning and 180.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2020-09-25 08:58:24,136 INFO L168 Benchmark]: RCFGBuilder took 368.73 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 163.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB.
[2020-09-25 08:58:24,138 INFO L168 Benchmark]: TraceAbstraction took 8457.75 ms. Allocated memory was 202.4 MB in the beginning and 282.6 MB in the end (delta: 80.2 MB). Free memory was 162.4 MB in the beginning and 125.6 MB in the end (delta: 36.8 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB.
[2020-09-25 08:58:24,142 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 143.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 311.10 ms. Allocated memory is still 143.7 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 122.07 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 91.8 MB in the beginning and 180.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 368.73 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 163.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 8457.75 ms. Allocated memory was 202.4 MB in the beginning and 282.6 MB in the end (delta: 80.2 MB). Free memory was 162.4 MB in the beginning and 125.6 MB in the end (delta: 36.8 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 35]: 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: 17]: Loop Invariant
Derived loop invariant: a == b || !(\valid[a] == 1)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 146 SDslu, 256 SDs, 0 SdLazy, 350 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 168 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 25645 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...