/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=0.8 --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/s42iff.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:00:54,018 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:00:54,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:00:54,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:00:54,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:00:54,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:00:54,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:00:54,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:00:54,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:00:54,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:00:54,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:00:54,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:00:54,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:00:54,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:00:54,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:00:54,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:00:54,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:00:54,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:00:54,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:00:54,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:00:54,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:00:54,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:00:54,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:00:54,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:00:54,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:00:54,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:00:54,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:00:54,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:00:54,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:00:54,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:00:54,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:00:54,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:00:54,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:00:54,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:00:54,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:00:54,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:00:54,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:00:54,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:00:54,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:00:54,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:00:54,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:00:54,097 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 08:00:54,125 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 08:00:54,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:00:54,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:00:54,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 08:00:54,128 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 08:00:54,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:00:54,128 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 08:00:54,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 08:00:54,129 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 08:00:54,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 08:00:54,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:00:54,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:00:54,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:00:54,131 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 08:00:54,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 08:00:54,131 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 08:00:54,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:00:54,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:00:54,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 08:00:54,132 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 08:00:54,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 08:00:54,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:00:54,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:00:54,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:00:54,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:00:54,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 08:00:54,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:00:54,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:00:54,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 08:00:54,135 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true;
[2020-09-25 08:00:54,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:00:54,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:00:54,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:00:54,671 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 08:00:54,671 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 08:00:54,673 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s42iff.c
[2020-09-25 08:00:54,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c61ed45d/8cdee061b0cd4b368645bb6773c8d14b/FLAGc6327b587
[2020-09-25 08:00:55,353 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 08:00:55,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s42iff.c
[2020-09-25 08:00:55,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c61ed45d/8cdee061b0cd4b368645bb6773c8d14b/FLAGc6327b587
[2020-09-25 08:00:55,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c61ed45d/8cdee061b0cd4b368645bb6773c8d14b
[2020-09-25 08:00:55,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:00:55,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:00:55,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:00:55,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:00:55,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:00:55,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:00:55" (1/1) ...
[2020-09-25 08:00:55,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127ab3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:55, skipping insertion in model container
[2020-09-25 08:00:55,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:00:55" (1/1) ...
[2020-09-25 08:00:55,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 08:00:55,769 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:00:56,044 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:00:56,055 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 08:00:56,081 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:00:56,101 INFO L208 MainTranslator]: Completed translation
[2020-09-25 08:00:56,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56 WrapperNode
[2020-09-25 08:00:56,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:00:56,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:00:56,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:00:56,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:00:56,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (1/1) ...
[2020-09-25 08:00:56,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (1/1) ...
[2020-09-25 08:00:56,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (1/1) ...
[2020-09-25 08:00:56,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (1/1) ...
[2020-09-25 08:00:56,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (1/1) ...
[2020-09-25 08:00:56,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (1/1) ...
[2020-09-25 08:00:56,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (1/1) ...
[2020-09-25 08:00:56,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:00:56,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:00:56,262 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:00:56,262 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:00:56,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (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 08:00:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:00:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:00:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 08:00:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 08:00:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:00:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:00:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 08:00:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 08:00:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 08:00:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:00:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 08:00:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:00:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 08:00:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 08:00:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 08:00:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 08:00:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 08:00:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:00:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:00:56,751 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:00:56,752 INFO L295 CfgBuilder]: Removed 3 assume(true) statements.
[2020-09-25 08:00:56,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:00:56 BoogieIcfgContainer
[2020-09-25 08:00:56,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:00:56,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:00:56,759 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:00:56,763 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:00:56,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:00:55" (1/3) ...
[2020-09-25 08:00:56,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f48c49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:00:56, skipping insertion in model container
[2020-09-25 08:00:56,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:00:56" (2/3) ...
[2020-09-25 08:00:56,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f48c49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:00:56, skipping insertion in model container
[2020-09-25 08:00:56,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:00:56" (3/3) ...
[2020-09-25 08:00:56,767 INFO L109 eAbstractionObserver]: Analyzing ICFG s42iff.c
[2020-09-25 08:00:56,779 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:00:56,790 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:00:56,813 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:00:56,846 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:00:56,847 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 08:00:56,847 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:00:56,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:00:56,847 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:00:56,847 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 08:00:56,847 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:00:56,847 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:00:56,872 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states.
[2020-09-25 08:00:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 08:00:56,882 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:00:56,884 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]
[2020-09-25 08:00:56,884 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:00:56,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:00:56,892 INFO L82 PathProgramCache]: Analyzing trace with hash 350973390, now seen corresponding path program 1 times
[2020-09-25 08:00:56,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:00:56,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116068863]
[2020-09-25 08:00:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:00:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:00:57,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:57,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:57,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:00:57,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 08:00:57,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 08:00:57,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352
[2020-09-25 08:00:57,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:00:57,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:00:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:00:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32
[2020-09-25 08:00:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:00:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 08:00:57,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:00:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:00:57,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:57,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:00:57,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 08:00:57,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:00:57,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 08:00:57,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:00:57,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:00:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:00:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:00:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:00:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:00:57,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 08:00:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:00:57,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:57,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:00:57,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:00:57,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:00:57,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 08:00:57,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:00:57,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:00:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:00:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:00:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:00:57,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:00:57,563 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 08:00:57,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116068863]
[2020-09-25 08:00:57,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:00:57,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 08:00:57,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711420945]
[2020-09-25 08:00:57,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 08:00:57,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:00:57,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 08:00:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 08:00:57,593 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states.
[2020-09-25 08:00:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:00:57,817 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions.
[2020-09-25 08:00:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 08:00:57,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33
[2020-09-25 08:00:57,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:00:57,835 INFO L225 Difference]: With dead ends: 143
[2020-09-25 08:00:57,836 INFO L226 Difference]: Without dead ends: 68
[2020-09-25 08:00:57,841 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 08:00:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2020-09-25 08:00:57,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2020-09-25 08:00:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-09-25 08:00:57,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions.
[2020-09-25 08:00:57,920 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33
[2020-09-25 08:00:57,921 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:00:57,922 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions.
[2020-09-25 08:00:57,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 08:00:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions.
[2020-09-25 08:00:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 08:00:57,926 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:00:57,926 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]
[2020-09-25 08:00:57,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:00:57,928 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:00:57,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:00:57,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1688115303, now seen corresponding path program 1 times
[2020-09-25 08:00:57,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:00:57,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102347096]
[2020-09-25 08:00:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:00:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:00:57,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:58,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:58,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:00:58,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 08:00:58,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 08:00:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819
[2020-09-25 08:00:58,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:00:58,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:00:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 08:00:58,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 08:00:58,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 08:00:58,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-09-25 08:00:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:00:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:00:58,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:00:58,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 08:00:58,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:00:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 08:00:58,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:00:58,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:00:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:00:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:00:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:00:58,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:00:58,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 08:00:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:00:58,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:00:58,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:00:58,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:00:58,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:00:58,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 08:00:58,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:00:58,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:00:58,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:00:58,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:00:58,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:00:58,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:00:58,866 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 08:00:58,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102347096]
[2020-09-25 08:00:58,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:00:58,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 08:00:58,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989250184]
[2020-09-25 08:00:58,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:00:58,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:00:58,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:00:58,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:00:58,870 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states.
[2020-09-25 08:00:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:00:59,086 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions.
[2020-09-25 08:00:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 08:00:59,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33
[2020-09-25 08:00:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:00:59,089 INFO L225 Difference]: With dead ends: 111
[2020-09-25 08:00:59,089 INFO L226 Difference]: Without dead ends: 71
[2020-09-25 08:00:59,090 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 08:00:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2020-09-25 08:00:59,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2020-09-25 08:00:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states.
[2020-09-25 08:00:59,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions.
[2020-09-25 08:00:59,101 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 33
[2020-09-25 08:00:59,102 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:00:59,102 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions.
[2020-09-25 08:00:59,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:00:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions.
[2020-09-25 08:00:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-09-25 08:00:59,104 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:00:59,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:00:59,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:00:59,105 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:00:59,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:00:59,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1790069826, now seen corresponding path program 1 times
[2020-09-25 08:00:59,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:00:59,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748925986]
[2020-09-25 08:00:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:00:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 08:00:59,138 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 08:00:59,138 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 08:00:59,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 08:00:59,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:00:59 BoogieIcfgContainer
[2020-09-25 08:00:59,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 08:00:59,171 INFO L168 Benchmark]: Toolchain (without parser) took 3466.98 ms. Allocated memory was 145.8 MB in the beginning and 233.3 MB in the end (delta: 87.6 MB). Free memory was 102.0 MB in the beginning and 129.6 MB in the end (delta: -27.6 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB.
[2020-09-25 08:00:59,172 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
[2020-09-25 08:00:59,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.38 ms. Allocated memory is still 145.8 MB. Free memory was 101.5 MB in the beginning and 90.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
[2020-09-25 08:00:59,174 INFO L168 Benchmark]: Boogie Preprocessor took 151.94 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 90.6 MB in the beginning and 178.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2020-09-25 08:00:59,175 INFO L168 Benchmark]: RCFGBuilder took 496.41 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 156.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB.
[2020-09-25 08:00:59,176 INFO L168 Benchmark]: TraceAbstraction took 2407.99 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 155.6 MB in the beginning and 129.6 MB in the end (delta: 26.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB.
[2020-09-25 08:00:59,180 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 391.38 ms. Allocated memory is still 145.8 MB. Free memory was 101.5 MB in the beginning and 90.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 151.94 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 90.6 MB in the beginning and 178.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 496.41 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 156.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2407.99 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 155.6 MB in the beginning and 129.6 MB in the end (delta: 26.0 MB). Peak memory consumption was 58.0 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] long long sum[1];
[L27] int *a = malloc(sizeof(int)*N);
[L29] sum[0] = 1
[L30] i=0
[L30] COND TRUE i<N
[L32] a[i] = 1
[L30] i++
[L30] COND FALSE !(i<N)
[L35] i=0
[L35] COND TRUE i<N
[L37] EXPR a[i]
[L37] COND TRUE a[i] == 1
[L38] EXPR a[i]
[L38] a[i] = a[i] + 4
[L35] i++
[L35] COND FALSE !(i<N)
[L44] i=0
[L44] COND TRUE i<N
[L46] EXPR a[i]
[L46] COND TRUE a[i] == 5
[L48] EXPR sum[0]
[L48] EXPR a[i]
[L48] sum[0] = sum[0] + a[i]
[L44] i++
[L44] COND FALSE !(i<N)
[L54] EXPR sum[0]
[L54] CALL __VERIFIER_assert(sum[0] == 5*N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 103 SDslu, 31 SDs, 0 SdLazy, 168 SolverSat, 13 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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, 1.4s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 3648 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...