/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/s52iff.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:09:52,488 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:09:52,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:09:52,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:09:52,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:09:52,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:09:52,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:09:52,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:09:52,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:09:52,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:09:52,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:09:52,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:09:52,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:09:52,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:09:52,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:09:52,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:09:52,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:09:52,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:09:52,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:09:52,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:09:52,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:09:52,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:09:52,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:09:52,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:09:52,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:09:52,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:09:52,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:09:52,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:09:52,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:09:52,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:09:52,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:09:52,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:09:52,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:09:52,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:09:52,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:09:52,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:09:52,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:09:52,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:09:52,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:09:52,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:09:52,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:09:52,615 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 09:09:52,664 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 09:09:52,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:09:52,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:09:52,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 09:09:52,666 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 09:09:52,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:09:52,667 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 09:09:52,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 09:09:52,667 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 09:09:52,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 09:09:52,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:09:52,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:09:52,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:09:52,670 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 09:09:52,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 09:09:52,670 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 09:09:52,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:09:52,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:09:52,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 09:09:52,671 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 09:09:52,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 09:09:52,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:09:52,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:09:52,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:09:52,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:09:52,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 09:09:52,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:09:52,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:09:52,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 09:09:52,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
[2020-09-25 09:09:53,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:09:53,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:09:53,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:09:53,144 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 09:09:53,144 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 09:09:53,145 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s52iff.c
[2020-09-25 09:09:53,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c07762237/7b59588dae314fbeab9d0a7c7f084fc7/FLAGd4ac6fa3d
[2020-09-25 09:09:53,760 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 09:09:53,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s52iff.c
[2020-09-25 09:09:53,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c07762237/7b59588dae314fbeab9d0a7c7f084fc7/FLAGd4ac6fa3d
[2020-09-25 09:09:54,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c07762237/7b59588dae314fbeab9d0a7c7f084fc7
[2020-09-25 09:09:54,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:09:54,093 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:09:54,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:09:54,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:09:54,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:09:54,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fa4179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54, skipping insertion in model container
[2020-09-25 09:09:54,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 09:09:54,149 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:09:54,377 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:09:54,388 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 09:09:54,415 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:09:54,434 INFO L208 MainTranslator]: Completed translation
[2020-09-25 09:09:54,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54 WrapperNode
[2020-09-25 09:09:54,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:09:54,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:09:54,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:09:54,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:09:54,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (1/1) ...
[2020-09-25 09:09:54,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:09:54,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:09:54,598 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:09:54,598 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:09:54,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (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 09:09:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:09:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:09:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 09:09:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 09:09:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:09:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:09:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 09:09:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 09:09:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 09:09:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:09:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:09:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:09:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:09:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:09:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:09:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:09:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:09:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:09:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:09:55,115 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:09:55,115 INFO L295 CfgBuilder]: Removed 3 assume(true) statements.
[2020-09-25 09:09:55,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:09:55 BoogieIcfgContainer
[2020-09-25 09:09:55,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:09:55,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:09:55,127 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:09:55,131 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:09:55,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:09:54" (1/3) ...
[2020-09-25 09:09:55,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d81f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:09:55, skipping insertion in model container
[2020-09-25 09:09:55,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:09:54" (2/3) ...
[2020-09-25 09:09:55,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d81f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:09:55, skipping insertion in model container
[2020-09-25 09:09:55,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:09:55" (3/3) ...
[2020-09-25 09:09:55,136 INFO L109 eAbstractionObserver]: Analyzing ICFG s52iff.c
[2020-09-25 09:09:55,145 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:09:55,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:09:55,179 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:09:55,214 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:09:55,214 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 09:09:55,215 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:09:55,215 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:09:55,215 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:09:55,215 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 09:09:55,215 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:09:55,215 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:09:55,238 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states.
[2020-09-25 09:09:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 09:09:55,246 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:09:55,249 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 09:09:55,249 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:09:55,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:09:55,258 INFO L82 PathProgramCache]: Analyzing trace with hash 350973390, now seen corresponding path program 1 times
[2020-09-25 09:09:55,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:09:55,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380200051]
[2020-09-25 09:09:55,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:09:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:09:55,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:55,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:55,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:55,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:09:55,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 09:09:55,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:09:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339
[2020-09-25 09:09:55,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:09:55,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:09:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:09:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32
[2020-09-25 09:09:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:09:55,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 09:09:55,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:09:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:09:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:55,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:09:55,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 09:09:55,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:09:55,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 09:09:55,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:09:55,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:09:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:09:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:09:55,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:09:55,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:09:55,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 09:09:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:09:55,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:55,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:09:55,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:09:55,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:09:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 09:09:55,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:09:55,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:09:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:09:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:09:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:09:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 09:09:55,901 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 09:09:55,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380200051]
[2020-09-25 09:09:55,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:09:55,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 09:09:55,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223346135]
[2020-09-25 09:09:55,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 09:09:55,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:09:55,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 09:09:55,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 09:09:55,939 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states.
[2020-09-25 09:09:56,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:09:56,181 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions.
[2020-09-25 09:09:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 09:09:56,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33
[2020-09-25 09:09:56,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:09:56,197 INFO L225 Difference]: With dead ends: 143
[2020-09-25 09:09:56,197 INFO L226 Difference]: Without dead ends: 68
[2020-09-25 09:09:56,203 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 09:09:56,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2020-09-25 09:09:56,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2020-09-25 09:09:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-09-25 09:09:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions.
[2020-09-25 09:09:56,266 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33
[2020-09-25 09:09:56,267 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:09:56,267 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions.
[2020-09-25 09:09:56,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 09:09:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions.
[2020-09-25 09:09:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 09:09:56,269 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:09:56,269 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 09:09:56,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:09:56,270 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:09:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:09:56,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1688115303, now seen corresponding path program 1 times
[2020-09-25 09:09:56,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:09:56,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975511230]
[2020-09-25 09:09:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:09:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:09:56,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:56,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:56,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:56,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:09:56,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 09:09:56,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:09:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667
[2020-09-25 09:09:56,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:09:56,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:09:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 09:09:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 09:09:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 09:09:56,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:09:57,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:09:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:09:57,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:57,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:09:57,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 09:09:57,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:09:57,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 09:09:57,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:09:57,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:09:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:09:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:09:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:09:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:09:57,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 09:09:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:09:57,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:09:57,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:09:57,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:09:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:09:57,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 09:09:57,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:09:57,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:09:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:09:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:09:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 09:09:57,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:09:57,045 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 09:09:57,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975511230]
[2020-09-25 09:09:57,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:09:57,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 09:09:57,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818517574]
[2020-09-25 09:09:57,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 09:09:57,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:09:57,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 09:09:57,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 09:09:57,050 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states.
[2020-09-25 09:09:57,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:09:57,270 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions.
[2020-09-25 09:09:57,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 09:09:57,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33
[2020-09-25 09:09:57,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:09:57,272 INFO L225 Difference]: With dead ends: 111
[2020-09-25 09:09:57,272 INFO L226 Difference]: Without dead ends: 71
[2020-09-25 09:09:57,274 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 09:09:57,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2020-09-25 09:09:57,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2020-09-25 09:09:57,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states.
[2020-09-25 09:09:57,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions.
[2020-09-25 09:09:57,286 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 33
[2020-09-25 09:09:57,286 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:09:57,286 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions.
[2020-09-25 09:09:57,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 09:09:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions.
[2020-09-25 09:09:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-09-25 09:09:57,289 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:09:57,289 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 09:09:57,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:09:57,290 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:09:57,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:09:57,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1790069826, now seen corresponding path program 1 times
[2020-09-25 09:09:57,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:09:57,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753799523]
[2020-09-25 09:09:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:09:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:09:57,322 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:09:57,323 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:09:57,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:09:57,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:09:57 BoogieIcfgContainer
[2020-09-25 09:09:57,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:09:57,358 INFO L168 Benchmark]: Toolchain (without parser) took 3269.67 ms. Allocated memory was 148.4 MB in the beginning and 232.3 MB in the end (delta: 83.9 MB). Free memory was 103.7 MB in the beginning and 128.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB.
[2020-09-25 09:09:57,359 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:09:57,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.73 ms. Allocated memory is still 148.4 MB. Free memory was 103.0 MB in the beginning and 92.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
[2020-09-25 09:09:57,361 INFO L168 Benchmark]: Boogie Preprocessor took 161.03 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 92.3 MB in the beginning and 183.5 MB in the end (delta: -91.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2020-09-25 09:09:57,362 INFO L168 Benchmark]: RCFGBuilder took 527.95 ms. Allocated memory is still 206.0 MB. Free memory was 183.5 MB in the beginning and 161.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
[2020-09-25 09:09:57,363 INFO L168 Benchmark]: TraceAbstraction took 2227.50 ms. Allocated memory was 206.0 MB in the beginning and 232.3 MB in the end (delta: 26.2 MB). Free memory was 161.0 MB in the beginning and 128.0 MB in the end (delta: 33.0 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB.
[2020-09-25 09:09:57,368 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 337.73 ms. Allocated memory is still 148.4 MB. Free memory was 103.0 MB in the beginning and 92.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 161.03 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 92.3 MB in the beginning and 183.5 MB in the end (delta: -91.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 527.95 ms. Allocated memory is still 206.0 MB. Free memory was 183.5 MB in the beginning and 161.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2227.50 ms. Allocated memory was 206.0 MB in the beginning and 232.3 MB in the end (delta: 26.2 MB). Free memory was 161.0 MB in the beginning and 128.0 MB in the end (delta: 33.0 MB). Peak memory consumption was 59.2 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] + 5
[L35] i++
[L35] COND FALSE !(i<N)
[L44] i=0
[L44] COND TRUE i<N
[L46] EXPR a[i]
[L46] COND TRUE a[i] == 6
[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] == 6*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: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, 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, 1.2s 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...