/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/test_while_int.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 12:20:01,612 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 12:20:01,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 12:20:01,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 12:20:01,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 12:20:01,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 12:20:01,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 12:20:01,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 12:20:01,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 12:20:01,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 12:20:01,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 12:20:01,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 12:20:01,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 12:20:01,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 12:20:01,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 12:20:01,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 12:20:01,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 12:20:01,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 12:20:01,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 12:20:01,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 12:20:01,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 12:20:01,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 12:20:01,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 12:20:01,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 12:20:01,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 12:20:01,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 12:20:01,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 12:20:01,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 12:20:01,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 12:20:01,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 12:20:01,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 12:20:01,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 12:20:01,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 12:20:01,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 12:20:01,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 12:20:01,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 12:20:01,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 12:20:01,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 12:20:01,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 12:20:01,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 12:20:01,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 12:20:01,755 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 12:20:01,802 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 12:20:01,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 12:20:01,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 12:20:01,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 12:20:01,805 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 12:20:01,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 12:20:01,805 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 12:20:01,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 12:20:01,806 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 12:20:01,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 12:20:01,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 12:20:01,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 12:20:01,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 12:20:01,808 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 12:20:01,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 12:20:01,808 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 12:20:01,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 12:20:01,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 12:20:01,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 12:20:01,809 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 12:20:01,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 12:20:01,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 12:20:01,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 12:20:01,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 12:20:01,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 12:20:01,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 12:20:01,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 12:20:01,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 12:20:01,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 12:20:01,811 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;
[2020-09-25 12:20:02,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 12:20:02,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 12:20:02,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 12:20:02,298 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 12:20:02,299 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 12:20:02,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.i
[2020-09-25 12:20:02,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7099c58b7/53be8680c6c54585a1739e12543bd623/FLAGa7fd3be25
[2020-09-25 12:20:02,902 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 12:20:02,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test_while_int.i
[2020-09-25 12:20:02,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7099c58b7/53be8680c6c54585a1739e12543bd623/FLAGa7fd3be25
[2020-09-25 12:20:03,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7099c58b7/53be8680c6c54585a1739e12543bd623
[2020-09-25 12:20:03,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 12:20:03,242 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 12:20:03,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 12:20:03,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 12:20:03,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 12:20:03,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f0616b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03, skipping insertion in model container
[2020-09-25 12:20:03,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 12:20:03,293 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 12:20:03,583 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:20:03,588 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 12:20:03,610 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:20:03,630 INFO L208 MainTranslator]: Completed translation
[2020-09-25 12:20:03,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03 WrapperNode
[2020-09-25 12:20:03,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 12:20:03,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 12:20:03,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 12:20:03,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 12:20:03,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (1/1) ...
[2020-09-25 12:20:03,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 12:20:03,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 12:20:03,754 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 12:20:03,754 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 12:20:03,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (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 12:20:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 12:20:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 12:20:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert
[2020-09-25 12:20:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure check_error
[2020-09-25 12:20:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 12:20:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 12:20:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert
[2020-09-25 12:20:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure check_error
[2020-09-25 12:20:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 12:20:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 12:20:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 12:20:04,045 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 12:20:04,046 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 12:20:04,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:20:04 BoogieIcfgContainer
[2020-09-25 12:20:04,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 12:20:04,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 12:20:04,052 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 12:20:04,055 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 12:20:04,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:20:03" (1/3) ...
[2020-09-25 12:20:04,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd9c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:20:04, skipping insertion in model container
[2020-09-25 12:20:04,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:03" (2/3) ...
[2020-09-25 12:20:04,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd9c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:20:04, skipping insertion in model container
[2020-09-25 12:20:04,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:20:04" (3/3) ...
[2020-09-25 12:20:04,059 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.i
[2020-09-25 12:20:04,072 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 12:20:04,085 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 12:20:04,109 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 12:20:04,147 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 12:20:04,148 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 12:20:04,148 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 12:20:04,148 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 12:20:04,149 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 12:20:04,149 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 12:20:04,149 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 12:20:04,149 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 12:20:04,173 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2020-09-25 12:20:04,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-09-25 12:20:04,180 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 12:20:04,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 12:20:04,182 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:20:04,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:20:04,191 INFO L82 PathProgramCache]: Analyzing trace with hash -459927168, now seen corresponding path program 1 times
[2020-09-25 12:20:04,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:20:04,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691528092]
[2020-09-25 12:20:04,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:20:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:20:04,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:20:04,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:20:04,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-09-25 12:20:04,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:20:04,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94
[2020-09-25 12:20:04,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:20:04,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:20:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 12:20:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 12:20:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-25 12:20:04,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 12:20:04,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:20:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:20:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:20:04,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:20:04,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:20:04,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:20:04,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 12:20:04,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:20:04,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:20:04,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:20:04,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:20:04,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:20:04,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:20:04,607 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 12:20:04,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691528092]
[2020-09-25 12:20:04,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:20:04,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 12:20:04,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188329286]
[2020-09-25 12:20:04,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 12:20:04,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:20:04,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 12:20:04,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-09-25 12:20:04,642 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states.
[2020-09-25 12:20:04,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:20:04,818 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions.
[2020-09-25 12:20:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-25 12:20:04,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14
[2020-09-25 12:20:04,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:20:04,831 INFO L225 Difference]: With dead ends: 53
[2020-09-25 12:20:04,831 INFO L226 Difference]: Without dead ends: 29
[2020-09-25 12:20:04,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2020-09-25 12:20:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2020-09-25 12:20:04,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26.
[2020-09-25 12:20:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2020-09-25 12:20:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions.
[2020-09-25 12:20:04,888 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 14
[2020-09-25 12:20:04,888 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:20:04,889 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions.
[2020-09-25 12:20:04,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 12:20:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions.
[2020-09-25 12:20:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-25 12:20:04,890 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 12:20:04,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 12:20:04,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 12:20:04,891 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:20:04,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:20:04,892 INFO L82 PathProgramCache]: Analyzing trace with hash 299235803, now seen corresponding path program 1 times
[2020-09-25 12:20:04,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:20:04,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615255264]
[2020-09-25 12:20:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:20:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:20:04,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:20:05,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:20:05,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36
[2020-09-25 12:20:05,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:20:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259
[2020-09-25 12:20:05,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:20:05,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:20:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 12:20:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 12:20:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-25 12:20:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:20:05,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:20:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:20:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:20:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:20:05,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 12:20:05,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:20:05,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 12:20:05,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:20:05,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:20:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:20:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:20:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:20:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:20:05,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-25 12:20:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:20:05,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:20:05,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:20:05,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 12:20:05,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:20:05,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 12:20:05,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:20:05,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:20:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:20:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:20:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 12:20:05,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:20:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 12:20:05,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615255264]
[2020-09-25 12:20:05,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 12:20:05,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-25 12:20:05,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092877049]
[2020-09-25 12:20:05,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 12:20:05,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:20:05,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 12:20:05,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2020-09-25 12:20:05,310 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states.
[2020-09-25 12:20:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:20:05,453 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions.
[2020-09-25 12:20:05,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 12:20:05,454 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23
[2020-09-25 12:20:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:20:05,456 INFO L225 Difference]: With dead ends: 41
[2020-09-25 12:20:05,456 INFO L226 Difference]: Without dead ends: 38
[2020-09-25 12:20:05,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182
[2020-09-25 12:20:05,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2020-09-25 12:20:05,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35.
[2020-09-25 12:20:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states.
[2020-09-25 12:20:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions.
[2020-09-25 12:20:05,478 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 23
[2020-09-25 12:20:05,479 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:20:05,479 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions.
[2020-09-25 12:20:05,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 12:20:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions.
[2020-09-25 12:20:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-09-25 12:20:05,480 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 12:20:05,480 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 12:20:05,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 12:20:05,481 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:20:05,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:20:05,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1072281632, now seen corresponding path program 2 times
[2020-09-25 12:20:05,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:20:05,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647826554]
[2020-09-25 12:20:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:20:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 12:20:05,498 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 12:20:05,498 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 12:20:05,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 12:20:05,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:20:05 BoogieIcfgContainer
[2020-09-25 12:20:05,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 12:20:05,527 INFO L168 Benchmark]: Toolchain (without parser) took 2287.13 ms. Allocated memory was 141.6 MB in the beginning and 233.3 MB in the end (delta: 91.8 MB). Free memory was 104.9 MB in the beginning and 201.3 MB in the end (delta: -96.4 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 12:20:05,528 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 12:20:05,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.49 ms. Allocated memory is still 141.6 MB. Free memory was 104.2 MB in the beginning and 94.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-09-25 12:20:05,530 INFO L168 Benchmark]: Boogie Preprocessor took 120.14 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 94.9 MB in the beginning and 184.2 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:20:05,531 INFO L168 Benchmark]: RCFGBuilder took 296.60 ms. Allocated memory is still 205.0 MB. Free memory was 184.2 MB in the beginning and 172.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB.
[2020-09-25 12:20:05,532 INFO L168 Benchmark]: TraceAbstraction took 1471.82 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 171.6 MB in the beginning and 201.3 MB in the end (delta: -29.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 12:20:05,536 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 389.49 ms. Allocated memory is still 141.6 MB. Free memory was 104.2 MB in the beginning and 94.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 120.14 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 94.9 MB in the beginning and 184.2 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 296.60 ms. Allocated memory is still 205.0 MB. Free memory was 184.2 MB in the beginning and 172.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1471.82 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 171.6 MB in the beginning and 201.3 MB in the end (delta: -29.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L23] int i=0;
[L24] COND TRUE i<5
[L25] i++
[L29] CALL check_error(i!=3)
[L18] (b) ? (0) : __blast_assert ()
[L29] RET check_error(i!=3)
[L24] COND TRUE i<5
[L25] i++
[L29] CALL check_error(i!=3)
[L18] (b) ? (0) : __blast_assert ()
[L29] RET check_error(i!=3)
[L24] COND TRUE i<5
[L25] i++
[L29] CALL check_error(i!=3)
[L18] (b) ? (0) : __blast_assert ()
[L18] CALL __blast_assert ()
[L6] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 23 SDslu, 112 SDs, 0 SdLazy, 82 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/7 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...