/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ms2f.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 06:51:36,736 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 06:51:36,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 06:51:36,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 06:51:36,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 06:51:36,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 06:51:36,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 06:51:36,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 06:51:36,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 06:51:36,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 06:51:36,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 06:51:36,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 06:51:36,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 06:51:36,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 06:51:36,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 06:51:36,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 06:51:36,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 06:51:36,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 06:51:36,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 06:51:36,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 06:51:36,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 06:51:36,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 06:51:36,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 06:51:36,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 06:51:36,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 06:51:36,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 06:51:36,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 06:51:36,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 06:51:36,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 06:51:36,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 06:51:36,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 06:51:36,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 06:51:36,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 06:51:36,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 06:51:36,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 06:51:36,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 06:51:36,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 06:51:36,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 06:51:36,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 06:51:36,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 06:51:36,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 06:51:36,815 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 06:51:36,877 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 06:51:36,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 06:51:36,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 06:51:36,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 06:51:36,880 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 06:51:36,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 06:51:36,880 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 06:51:36,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 06:51:36,880 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 06:51:36,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 06:51:36,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 06:51:36,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 06:51:36,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 06:51:36,884 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 06:51:36,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 06:51:36,884 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 06:51:36,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 06:51:36,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 06:51:36,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 06:51:36,885 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 06:51:36,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 06:51:36,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 06:51:36,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 06:51:36,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 06:51:36,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 06:51:36,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 06:51:36,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 06:51:36,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 06:51:36,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 06:51:36,889 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true;
[2020-09-25 06:51:37,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 06:51:37,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 06:51:37,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 06:51:37,417 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 06:51:37,418 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 06:51:37,419 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms2f.c
[2020-09-25 06:51:37,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11cfaf381/415c8ee6cb814a19907bfd113b0cb4c6/FLAGa8eb56b83
[2020-09-25 06:51:38,103 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 06:51:38,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms2f.c
[2020-09-25 06:51:38,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11cfaf381/415c8ee6cb814a19907bfd113b0cb4c6/FLAGa8eb56b83
[2020-09-25 06:51:38,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11cfaf381/415c8ee6cb814a19907bfd113b0cb4c6
[2020-09-25 06:51:38,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 06:51:38,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 06:51:38,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 06:51:38,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 06:51:38,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 06:51:38,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1848833b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38, skipping insertion in model container
[2020-09-25 06:51:38,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 06:51:38,493 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 06:51:38,792 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:51:38,803 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 06:51:38,826 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:51:38,845 INFO L208 MainTranslator]: Completed translation
[2020-09-25 06:51:38,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38 WrapperNode
[2020-09-25 06:51:38,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 06:51:38,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 06:51:38,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 06:51:38,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 06:51:38,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (1/1) ...
[2020-09-25 06:51:38,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 06:51:38,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 06:51:38,986 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 06:51:38,986 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 06:51:38,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (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 06:51:39,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 06:51:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 06:51:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 06:51:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 06:51:39,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 06:51:39,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 06:51:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 06:51:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 06:51:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 06:51:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 06:51:39,071 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 06:51:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 06:51:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 06:51:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 06:51:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 06:51:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 06:51:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 06:51:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 06:51:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 06:51:39,412 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 06:51:39,412 INFO L295 CfgBuilder]: Removed 2 assume(true) statements.
[2020-09-25 06:51:39,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:51:39 BoogieIcfgContainer
[2020-09-25 06:51:39,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 06:51:39,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 06:51:39,419 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 06:51:39,422 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 06:51:39,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:51:38" (1/3) ...
[2020-09-25 06:51:39,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf8e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:51:39, skipping insertion in model container
[2020-09-25 06:51:39,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:51:38" (2/3) ...
[2020-09-25 06:51:39,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf8e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:51:39, skipping insertion in model container
[2020-09-25 06:51:39,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:51:39" (3/3) ...
[2020-09-25 06:51:39,427 INFO L109 eAbstractionObserver]: Analyzing ICFG ms2f.c
[2020-09-25 06:51:39,438 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 06:51:39,449 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 06:51:39,472 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 06:51:39,502 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 06:51:39,502 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 06:51:39,502 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 06:51:39,502 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 06:51:39,502 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 06:51:39,502 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 06:51:39,502 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 06:51:39,502 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 06:51:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states.
[2020-09-25 06:51:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-09-25 06:51:39,533 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:51:39,535 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]
[2020-09-25 06:51:39,535 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:51:39,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:51:39,542 INFO L82 PathProgramCache]: Analyzing trace with hash -845632023, now seen corresponding path program 1 times
[2020-09-25 06:51:39,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:51:39,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247399566]
[2020-09-25 06:51:39,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:51:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:51:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:39,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:39,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:51:39,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-25 06:51:39,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 06:51:39,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200
[2020-09-25 06:51:39,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:51:39,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:51:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:51:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33
[2020-09-25 06:51:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:51:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 06:51:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:51:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:51:40,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:40,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:51:40,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 06:51:40,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:51:40,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 06:51:40,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:51:40,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:51:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:51:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:51:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:51:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:51:40,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 06:51:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:51:40,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:40,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:51:40,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 06:51:40,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:51:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 06:51:40,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:51:40,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:51:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:51:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:51:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:51:40,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:51:40,054 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 06:51:40,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247399566]
[2020-09-25 06:51:40,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:51:40,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 06:51:40,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627298829]
[2020-09-25 06:51:40,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 06:51:40,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:51:40,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 06:51:40,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:51:40,093 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states.
[2020-09-25 06:51:40,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:51:40,264 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions.
[2020-09-25 06:51:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 06:51:40,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30
[2020-09-25 06:51:40,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:51:40,278 INFO L225 Difference]: With dead ends: 97
[2020-09-25 06:51:40,279 INFO L226 Difference]: Without dead ends: 45
[2020-09-25 06:51:40,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:51:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-09-25 06:51:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2020-09-25 06:51:40,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2020-09-25 06:51:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions.
[2020-09-25 06:51:40,337 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 30
[2020-09-25 06:51:40,337 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:51:40,338 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions.
[2020-09-25 06:51:40,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 06:51:40,338 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions.
[2020-09-25 06:51:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-09-25 06:51:40,339 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:51:40,340 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]
[2020-09-25 06:51:40,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 06:51:40,340 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:51:40,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:51:40,341 INFO L82 PathProgramCache]: Analyzing trace with hash 104990277, now seen corresponding path program 1 times
[2020-09-25 06:51:40,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:51:40,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272508796]
[2020-09-25 06:51:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:51:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:51:40,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:40,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:40,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:51:40,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-25 06:51:40,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 06:51:40,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457
[2020-09-25 06:51:40,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:51:40,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:51:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 06:51:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 06:51:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-25 06:51:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:51:40,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:51:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:51:40,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:40,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:51:40,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 06:51:40,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:51:40,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 06:51:40,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:51:40,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:51:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:51:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:51:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:51:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:51:40,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 06:51:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:51:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:51:40,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:51:40,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 06:51:40,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:51:40,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 06:51:40,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:51:40,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:51:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:51:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:51:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 06:51:40,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:51:40,932 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 06:51:40,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272508796]
[2020-09-25 06:51:40,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:51:40,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 06:51:40,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285146404]
[2020-09-25 06:51:40,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 06:51:40,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:51:40,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 06:51:40,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 06:51:40,938 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 5 states.
[2020-09-25 06:51:41,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:51:41,132 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions.
[2020-09-25 06:51:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 06:51:41,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30
[2020-09-25 06:51:41,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:51:41,134 INFO L225 Difference]: With dead ends: 65
[2020-09-25 06:51:41,135 INFO L226 Difference]: Without dead ends: 47
[2020-09-25 06:51:41,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 06:51:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2020-09-25 06:51:41,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2020-09-25 06:51:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states.
[2020-09-25 06:51:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions.
[2020-09-25 06:51:41,146 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 30
[2020-09-25 06:51:41,146 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:51:41,147 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions.
[2020-09-25 06:51:41,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 06:51:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions.
[2020-09-25 06:51:41,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-09-25 06:51:41,148 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:51:41,149 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 06:51:41,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 06:51:41,149 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:51:41,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:51:41,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1687643347, now seen corresponding path program 1 times
[2020-09-25 06:51:41,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:51:41,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82868067]
[2020-09-25 06:51:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:51:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 06:51:41,175 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 06:51:41,175 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 06:51:41,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 06:51:41,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:51:41 BoogieIcfgContainer
[2020-09-25 06:51:41,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 06:51:41,206 INFO L168 Benchmark]: Toolchain (without parser) took 2765.67 ms. Allocated memory was 145.2 MB in the beginning and 232.3 MB in the end (delta: 87.0 MB). Free memory was 101.5 MB in the beginning and 174.2 MB in the end (delta: -72.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB.
[2020-09-25 06:51:41,208 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-25 06:51:41,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.78 ms. Allocated memory is still 145.2 MB. Free memory was 100.9 MB in the beginning and 90.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
[2020-09-25 06:51:41,209 INFO L168 Benchmark]: Boogie Preprocessor took 138.72 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 90.4 MB in the beginning and 179.2 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2020-09-25 06:51:41,210 INFO L168 Benchmark]: RCFGBuilder took 432.13 ms. Allocated memory is still 201.3 MB. Free memory was 179.2 MB in the beginning and 161.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB.
[2020-09-25 06:51:41,211 INFO L168 Benchmark]: TraceAbstraction took 1784.01 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 160.4 MB in the beginning and 174.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB.
[2020-09-25 06:51:41,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 400.78 ms. Allocated memory is still 145.2 MB. Free memory was 100.9 MB in the beginning and 90.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 138.72 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 90.4 MB in the beginning and 179.2 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 432.13 ms. Allocated memory is still 201.3 MB. Free memory was 179.2 MB in the beginning and 161.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1784.01 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 160.4 MB in the beginning and 174.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L17] int N;
[L21] N = __VERIFIER_nondet_int()
[L22] COND FALSE !(N <= 0)
[L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int))
[L11] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int))
[L25] int i;
[L26] int sum[1];
[L27] int *a = malloc(sizeof(int)*N);
[L29] i=0
[L29] COND TRUE i<N
[L31] a[i] = i%2
[L29] i++
[L29] COND FALSE !(i<N)
[L34] i=0
[L34] COND TRUE i<N
[L36] COND TRUE i==0
[L37] sum[0] = 0
[L34] i++
[L34] COND FALSE !(i<N)
[L42] EXPR sum[0]
[L42] CALL __VERIFIER_assert(sum[0] > N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 60 SDslu, 29 SDs, 0 SdLazy, 108 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2958 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 incorrect!
Received shutdown request...