/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/res1of.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 11:23:14,726 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 11:23:14,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 11:23:14,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 11:23:14,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 11:23:14,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 11:23:14,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 11:23:14,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 11:23:14,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 11:23:14,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 11:23:14,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 11:23:14,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 11:23:14,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 11:23:14,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 11:23:14,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 11:23:14,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 11:23:14,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 11:23:14,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 11:23:14,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 11:23:14,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 11:23:14,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 11:23:14,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 11:23:14,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 11:23:14,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 11:23:14,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 11:23:14,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 11:23:14,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 11:23:14,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 11:23:14,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 11:23:14,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 11:23:14,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 11:23:14,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 11:23:14,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 11:23:14,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 11:23:14,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 11:23:14,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 11:23:14,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 11:23:14,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 11:23:14,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 11:23:14,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 11:23:14,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 11:23:14,851 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 11:23:14,897 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 11:23:14,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 11:23:14,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 11:23:14,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 11:23:14,900 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 11:23:14,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 11:23:14,900 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 11:23:14,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 11:23:14,901 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 11:23:14,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 11:23:14,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 11:23:14,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 11:23:14,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 11:23:14,903 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 11:23:14,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 11:23:14,904 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 11:23:14,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 11:23:14,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 11:23:14,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 11:23:14,905 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 11:23:14,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 11:23:14,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 11:23:14,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 11:23:14,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 11:23:14,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 11:23:14,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 11:23:14,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 11:23:14,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 11:23:14,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 11:23:14,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 11:23:15,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 11:23:15,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 11:23:15,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 11:23:15,402 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 11:23:15,402 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 11:23:15,403 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1of.c
[2020-09-25 11:23:15,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/955d4699b/ce907c0ce0ee46a1b1c24ca45ba73721/FLAG4f4a962d6
[2020-09-25 11:23:15,987 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 11:23:15,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res1of.c
[2020-09-25 11:23:15,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/955d4699b/ce907c0ce0ee46a1b1c24ca45ba73721/FLAG4f4a962d6
[2020-09-25 11:23:16,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/955d4699b/ce907c0ce0ee46a1b1c24ca45ba73721
[2020-09-25 11:23:16,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 11:23:16,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 11:23:16,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 11:23:16,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 11:23:16,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 11:23:16,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1848833b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16, skipping insertion in model container
[2020-09-25 11:23:16,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 11:23:16,393 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 11:23:16,648 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:23:16,660 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 11:23:16,688 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:23:16,709 INFO L208 MainTranslator]: Completed translation
[2020-09-25 11:23:16,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16 WrapperNode
[2020-09-25 11:23:16,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 11:23:16,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 11:23:16,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 11:23:16,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 11:23:16,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (1/1) ...
[2020-09-25 11:23:16,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 11:23:16,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 11:23:16,830 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 11:23:16,830 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 11:23:16,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (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 11:23:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 11:23:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 11:23:16,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 11:23:16,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 11:23:16,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 11:23:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 11:23:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 11:23:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 11:23:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 11:23:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 11:23:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 11:23:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 11:23:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 11:23:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 11:23:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 11:23:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 11:23:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 11:23:16,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 11:23:16,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 11:23:17,327 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 11:23:17,327 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-25 11:23:17,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:23:17 BoogieIcfgContainer
[2020-09-25 11:23:17,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 11:23:17,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 11:23:17,334 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 11:23:17,338 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 11:23:17,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:23:16" (1/3) ...
[2020-09-25 11:23:17,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22babc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:23:17, skipping insertion in model container
[2020-09-25 11:23:17,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:16" (2/3) ...
[2020-09-25 11:23:17,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22babc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:23:17, skipping insertion in model container
[2020-09-25 11:23:17,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:23:17" (3/3) ...
[2020-09-25 11:23:17,342 INFO L109 eAbstractionObserver]: Analyzing ICFG res1of.c
[2020-09-25 11:23:17,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 11:23:17,363 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 11:23:17,387 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 11:23:17,417 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 11:23:17,417 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 11:23:17,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 11:23:17,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 11:23:17,417 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 11:23:17,417 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 11:23:17,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 11:23:17,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 11:23:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states.
[2020-09-25 11:23:17,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-09-25 11:23:17,447 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:17,449 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]
[2020-09-25 11:23:17,449 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:17,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:17,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1485233439, now seen corresponding path program 1 times
[2020-09-25 11:23:17,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:17,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70858823]
[2020-09-25 11:23:17,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:17,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:17,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:17,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:17,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:18,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:18,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:18,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48
[2020-09-25 11:23:18,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 11:23:18,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1144
[2020-09-25 11:23:18,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:18,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 11:23:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 11:23:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29
[2020-09-25 11:23:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 11:23:18,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:23:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:18,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:18,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:18,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 11:23:18,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:18,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 11:23:18,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:18,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:18,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:18,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:18,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 11:23:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:18,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:18,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:18,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 11:23:18,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:18,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 11:23:18,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:18,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 11:23:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 11:23:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:18,987 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 11:23:18,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70858823]
[2020-09-25 11:23:18,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:23:18,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 11:23:18,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306691031]
[2020-09-25 11:23:18,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 11:23:18,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:23:19,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 11:23:19,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 11:23:19,020 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 8 states.
[2020-09-25 11:23:19,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:23:19,522 INFO L93 Difference]: Finished difference Result 160 states and 188 transitions.
[2020-09-25 11:23:19,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 11:23:19,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37
[2020-09-25 11:23:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:23:19,538 INFO L225 Difference]: With dead ends: 160
[2020-09-25 11:23:19,539 INFO L226 Difference]: Without dead ends: 77
[2020-09-25 11:23:19,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2020-09-25 11:23:19,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2020-09-25 11:23:19,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69.
[2020-09-25 11:23:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states.
[2020-09-25 11:23:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions.
[2020-09-25 11:23:19,610 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 37
[2020-09-25 11:23:19,611 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:23:19,611 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions.
[2020-09-25 11:23:19,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 11:23:19,611 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions.
[2020-09-25 11:23:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2020-09-25 11:23:19,613 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:19,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 11:23:19,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 11:23:19,614 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:19,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:19,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1830842721, now seen corresponding path program 1 times
[2020-09-25 11:23:19,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:19,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639484366]
[2020-09-25 11:23:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:19,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:19,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:19,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:19,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:20,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:20,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:22,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:22,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-25 11:23:22,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-25 11:23:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2635
[2020-09-25 11:23:22,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:22,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 11:23:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 11:23:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-25 11:23:22,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:22,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:23:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:22,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:22,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:22,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 11:23:22,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:22,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 11:23:22,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:22,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:22,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 11:23:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:22,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:22,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:22,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 11:23:22,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:22,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 11:23:22,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:22,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:22,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 11:23:22,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 11:23:22,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 11:23:22,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639484366]
[2020-09-25 11:23:22,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:23:22,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 11:23:22,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972550244]
[2020-09-25 11:23:22,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 11:23:22,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:23:22,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 11:23:22,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 11:23:22,357 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 5 states.
[2020-09-25 11:23:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:23:22,524 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions.
[2020-09-25 11:23:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 11:23:22,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42
[2020-09-25 11:23:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:23:22,527 INFO L225 Difference]: With dead ends: 103
[2020-09-25 11:23:22,527 INFO L226 Difference]: Without dead ends: 66
[2020-09-25 11:23:22,528 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 11:23:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2020-09-25 11:23:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2020-09-25 11:23:22,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-09-25 11:23:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions.
[2020-09-25 11:23:22,539 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 42
[2020-09-25 11:23:22,539 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:23:22,539 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions.
[2020-09-25 11:23:22,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 11:23:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions.
[2020-09-25 11:23:22,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2020-09-25 11:23:22,542 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:22,542 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, 1, 1, 1, 1, 1]
[2020-09-25 11:23:22,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 11:23:22,543 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:22,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:22,543 INFO L82 PathProgramCache]: Analyzing trace with hash 499886001, now seen corresponding path program 1 times
[2020-09-25 11:23:22,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:22,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735254299]
[2020-09-25 11:23:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 11:23:22,571 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 11:23:22,571 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 11:23:22,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 11:23:22,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:23:22 BoogieIcfgContainer
[2020-09-25 11:23:22,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 11:23:22,606 INFO L168 Benchmark]: Toolchain (without parser) took 6264.97 ms. Allocated memory was 116.9 MB in the beginning and 229.6 MB in the end (delta: 112.7 MB). Free memory was 74.8 MB in the beginning and 153.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:22,607 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 116.9 MB. Free memory was 92.4 MB in the beginning and 92.3 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB.
[2020-09-25 11:23:22,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.00 ms. Allocated memory was 116.9 MB in the beginning and 130.5 MB in the end (delta: 13.6 MB). Free memory was 74.2 MB in the beginning and 99.0 MB in the end (delta: -24.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:22,609 INFO L168 Benchmark]: Boogie Preprocessor took 118.67 ms. Allocated memory was 130.5 MB in the beginning and 167.8 MB in the end (delta: 37.2 MB). Free memory was 99.0 MB in the beginning and 152.4 MB in the end (delta: -53.5 MB). Peak memory consumption was 405.2 kB. Max. memory is 7.1 GB.
[2020-09-25 11:23:22,610 INFO L168 Benchmark]: RCFGBuilder took 503.48 ms. Allocated memory is still 167.8 MB. Free memory was 152.4 MB in the beginning and 131.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:22,611 INFO L168 Benchmark]: TraceAbstraction took 5268.05 ms. Allocated memory was 167.8 MB in the beginning and 229.6 MB in the end (delta: 61.9 MB). Free memory was 131.3 MB in the beginning and 153.0 MB in the end (delta: -21.7 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:22,615 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 116.9 MB. Free memory was 92.4 MB in the beginning and 92.3 MB in the end (delta: 105.2 kB). Peak memory consumption was 105.2 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 365.00 ms. Allocated memory was 116.9 MB in the beginning and 130.5 MB in the end (delta: 13.6 MB). Free memory was 74.2 MB in the beginning and 99.0 MB in the end (delta: -24.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 118.67 ms. Allocated memory was 130.5 MB in the beginning and 167.8 MB in the end (delta: 37.2 MB). Free memory was 99.0 MB in the beginning and 152.4 MB in the end (delta: -53.5 MB). Peak memory consumption was 405.2 kB. Max. memory is 7.1 GB.
* RCFGBuilder took 503.48 ms. Allocated memory is still 167.8 MB. Free memory was 152.4 MB in the beginning and 131.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 5268.05 ms. Allocated memory was 167.8 MB in the beginning and 229.6 MB in the end (delta: 61.9 MB). Free memory was 131.3 MB in the beginning and 153.0 MB in the end (delta: -21.7 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L17] int N;
[L21] N = __VERIFIER_nondet_int()
[L22] COND FALSE !(N <= 0)
[L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int))
[L11] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int))
[L25] int i;
[L26] long long sum[1];
[L27] int *a = malloc(sizeof(int)*N);
[L28] int *b = malloc(sizeof(int)*N);
[L30] sum[0] = 0
[L31] i=0
[L31] COND TRUE i<N
[L33] a[i] = 1
[L31] i++
[L31] COND FALSE !(i<N)
[L36] i=0
[L36] COND TRUE i<N
[L38] EXPR sum[0]
[L38] EXPR a[i]
[L38] sum[0] = sum[0] + a[i]
[L36] i++
[L36] COND FALSE !(i<N)
[L41] i=0
[L41] COND TRUE i<N
[L43] b[i] = 1
[L41] i++
[L41] COND FALSE !(i<N)
[L46] i=0
[L46] COND TRUE i<N
[L48] EXPR sum[0]
[L48] EXPR b[i]
[L48] sum[0] = sum[0] + b[i]
[L46] i++
[L46] COND FALSE !(i<N)
[L51] EXPR sum[0]
[L51] CALL __VERIFIER_assert(sum[0] <= N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 103 SDtfs, 176 SDslu, 208 SDs, 0 SdLazy, 332 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 9809 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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...