/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 19:22:02,668 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 19:22:02,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 19:22:02,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 19:22:02,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 19:22:02,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 19:22:02,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 19:22:02,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 19:22:02,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 19:22:02,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 19:22:02,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 19:22:02,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 19:22:02,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 19:22:02,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 19:22:02,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 19:22:02,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 19:22:02,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 19:22:02,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 19:22:02,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 19:22:02,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 19:22:02,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 19:22:02,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 19:22:02,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 19:22:02,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 19:22:02,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 19:22:02,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 19:22:02,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 19:22:02,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 19:22:02,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 19:22:02,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 19:22:02,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 19:22:02,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 19:22:02,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 19:22:02,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 19:22:02,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 19:22:02,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 19:22:02,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 19:22:02,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 19:22:02,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 19:22:02,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 19:22:02,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 19:22:02,794 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
[2020-09-24 19:22:02,840 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 19:22:02,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 19:22:02,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 19:22:02,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 19:22:02,843 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 19:22:02,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 19:22:02,844 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 19:22:02,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 19:22:02,844 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 19:22:02,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 19:22:02,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 19:22:02,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 19:22:02,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 19:22:02,847 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 19:22:02,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 19:22:02,847 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 19:22:02,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 19:22:02,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 19:22:02,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 19:22:02,848 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 19:22:02,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 19:22:02,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 19:22:02,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 19:22:02,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 19:22:02,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 19:22:02,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 19:22:02,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 19:22:02,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 19:22:02,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 19:22:02,850 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
[2020-09-24 19:22:03,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 19:22:03,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 19:22:03,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 19:22:03,357 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 19:22:03,358 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 19:22:03,359 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c
[2020-09-24 19:22:03,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b35bad16b/8f8e36b4869c41078d9e33a8f01765ac/FLAGb74df60cd
[2020-09-24 19:22:04,014 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 19:22:04,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c
[2020-09-24 19:22:04,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b35bad16b/8f8e36b4869c41078d9e33a8f01765ac/FLAGb74df60cd
[2020-09-24 19:22:04,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b35bad16b/8f8e36b4869c41078d9e33a8f01765ac
[2020-09-24 19:22:04,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 19:22:04,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 19:22:04,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 19:22:04,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 19:22:04,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 19:22:04,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddad570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04, skipping insertion in model container
[2020-09-24 19:22:04,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 19:22:04,427 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 19:22:04,745 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:22:04,774 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 19:22:04,799 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:22:04,821 INFO L208 MainTranslator]: Completed translation
[2020-09-24 19:22:04,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04 WrapperNode
[2020-09-24 19:22:04,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 19:22:04,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 19:22:04,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 19:22:04,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 19:22:04,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (1/1) ...
[2020-09-24 19:22:04,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 19:22:04,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 19:22:04,951 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 19:22:04,951 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 19:22:04,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (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
[2020-09-24 19:22:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 19:22:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 19:22:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 19:22:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 19:22:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure check
[2020-09-24 19:22:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 19:22:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit
[2020-09-24 19:22:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-09-24 19:22:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 19:22:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 19:22:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 19:22:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 19:22:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 19:22:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 19:22:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure check
[2020-09-24 19:22:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 19:22:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 19:22:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 19:22:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit
[2020-09-24 19:22:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 19:22:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 19:22:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 19:22:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 19:22:05,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 19:22:05,427 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 19:22:05,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:05 BoogieIcfgContainer
[2020-09-24 19:22:05,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 19:22:05,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 19:22:05,435 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 19:22:05,438 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 19:22:05,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:22:04" (1/3) ...
[2020-09-24 19:22:05,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7369ad71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:05, skipping insertion in model container
[2020-09-24 19:22:05,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:04" (2/3) ...
[2020-09-24 19:22:05,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7369ad71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:05, skipping insertion in model container
[2020-09-24 19:22:05,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:05" (3/3) ...
[2020-09-24 19:22:05,443 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c
[2020-09-24 19:22:05,452 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 19:22:05,461 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 19:22:05,481 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 19:22:05,511 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 19:22:05,511 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 19:22:05,511 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 19:22:05,511 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 19:22:05,511 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 19:22:05,512 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 19:22:05,512 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 19:22:05,512 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 19:22:05,535 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states.
[2020-09-24 19:22:05,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-09-24 19:22:05,544 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:05,546 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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]
[2020-09-24 19:22:05,546 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:05,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:05,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1228919024, now seen corresponding path program 1 times
[2020-09-24 19:22:05,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:05,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399135484]
[2020-09-24 19:22:05,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:05,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:06,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:06,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-09-24 19:22:06,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:06,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710
[2020-09-24 19:22:06,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:22:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43
[2020-09-24 19:22:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-24 19:22:06,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 19:22:06,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:06,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:06,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:06,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:22:06,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 19:22:06,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:06,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:06,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-24 19:22:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:06,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:06,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:06,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:06,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:06,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:22:06,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:06,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-09-24 19:22:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:06,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:06,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:06,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:06,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 19:22:06,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:06,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-24 19:22:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:06,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:06,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:06,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:22:06,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:06,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:22:06,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:06,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:06,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-09-24 19:22:06,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399135484]
[2020-09-24 19:22:06,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:06,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 19:22:06,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316678651]
[2020-09-24 19:22:06,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 19:22:06,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:06,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 19:22:06,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2020-09-24 19:22:06,808 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 10 states.
[2020-09-24 19:22:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:07,778 INFO L93 Difference]: Finished difference Result 221 states and 257 transitions.
[2020-09-24 19:22:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-24 19:22:07,780 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40
[2020-09-24 19:22:07,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:07,797 INFO L225 Difference]: With dead ends: 221
[2020-09-24 19:22:07,797 INFO L226 Difference]: Without dead ends: 138
[2020-09-24 19:22:07,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-24 19:22:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states.
[2020-09-24 19:22:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 122.
[2020-09-24 19:22:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states.
[2020-09-24 19:22:07,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions.
[2020-09-24 19:22:07,890 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 40
[2020-09-24 19:22:07,891 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:07,891 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions.
[2020-09-24 19:22:07,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 19:22:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions.
[2020-09-24 19:22:07,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-09-24 19:22:07,897 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:07,897 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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]
[2020-09-24 19:22:07,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 19:22:07,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:07,899 INFO L82 PathProgramCache]: Analyzing trace with hash -2013393660, now seen corresponding path program 1 times
[2020-09-24 19:22:07,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:07,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040664323]
[2020-09-24 19:22:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:07,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:08,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:08,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:08,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69
[2020-09-24 19:22:08,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:22:08,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000
[2020-09-24 19:22:08,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-24 19:22:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36
[2020-09-24 19:22:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32
[2020-09-24 19:22:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:09,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:09,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:09,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:09,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:22:09,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:22:09,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:09,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:09,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:09,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:09,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-24 19:22:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:09,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:09,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:09,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:09,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:09,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:22:09,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:09,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:09,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-09-24 19:22:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:09,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:09,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:09,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:09,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:09,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:22:09,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:09,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-24 19:22:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:09,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:09,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:09,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:22:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 19:22:09,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 19:22:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:09,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2020-09-24 19:22:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:09,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:09,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 19:22:09,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:09,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-24 19:22:09,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:09,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 19:22:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-09-24 19:22:09,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040664323]
[2020-09-24 19:22:09,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:09,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-24 19:22:09,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249304220]
[2020-09-24 19:22:09,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 19:22:09,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:09,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 19:22:09,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2020-09-24 19:22:09,223 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand 13 states.
[2020-09-24 19:22:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:10,080 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions.
[2020-09-24 19:22:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2020-09-24 19:22:10,080 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52
[2020-09-24 19:22:10,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:10,083 INFO L225 Difference]: With dead ends: 128
[2020-09-24 19:22:10,083 INFO L226 Difference]: Without dead ends: 108
[2020-09-24 19:22:10,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600
[2020-09-24 19:22:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2020-09-24 19:22:10,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108.
[2020-09-24 19:22:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states.
[2020-09-24 19:22:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions.
[2020-09-24 19:22:10,100 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 52
[2020-09-24 19:22:10,101 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:10,101 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions.
[2020-09-24 19:22:10,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 19:22:10,101 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions.
[2020-09-24 19:22:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-09-24 19:22:10,104 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:10,105 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2020-09-24 19:22:10,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 19:22:10,105 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:10,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:10,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1709597342, now seen corresponding path program 1 times
[2020-09-24 19:22:10,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:10,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472058024]
[2020-09-24 19:22:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:10,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:10,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:11,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:11,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90
[2020-09-24 19:22:11,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:22:11,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000
[2020-09-24 19:22:11,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:11,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-24 19:22:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52
[2020-09-24 19:22:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37
[2020-09-24 19:22:11,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-24 19:22:11,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:11,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:11,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:11,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:22:11,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:11,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:22:11,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:11,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-24 19:22:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:11,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:11,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:11,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:11,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:22:11,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-09-24 19:22:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:11,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:11,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:11,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:22:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:11,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-24 19:22:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:11,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:11,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:11,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:22:11,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:11,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:22:11,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:11,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:11,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2020-09-24 19:22:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:11,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:11,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:11,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:11,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:11,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 19:22:11,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 19:22:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 19:22:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:11,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-09-24 19:22:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:11,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:11,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:11,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:11,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:11,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 19:22:11,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:11,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:11,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:11,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-09-24 19:22:11,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472058024]
[2020-09-24 19:22:11,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:22:11,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-24 19:22:11,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22510281]
[2020-09-24 19:22:11,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 19:22:11,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:11,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 19:22:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2020-09-24 19:22:11,450 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand 13 states.
[2020-09-24 19:22:12,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:12,639 INFO L93 Difference]: Finished difference Result 189 states and 211 transitions.
[2020-09-24 19:22:12,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-09-24 19:22:12,640 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67
[2020-09-24 19:22:12,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:12,644 INFO L225 Difference]: With dead ends: 189
[2020-09-24 19:22:12,644 INFO L226 Difference]: Without dead ends: 187
[2020-09-24 19:22:12,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650
[2020-09-24 19:22:12,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states.
[2020-09-24 19:22:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 151.
[2020-09-24 19:22:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states.
[2020-09-24 19:22:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 167 transitions.
[2020-09-24 19:22:12,697 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 167 transitions. Word has length 67
[2020-09-24 19:22:12,700 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:12,700 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 167 transitions.
[2020-09-24 19:22:12,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 19:22:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 167 transitions.
[2020-09-24 19:22:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-09-24 19:22:12,702 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:12,702 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2020-09-24 19:22:12,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 19:22:12,703 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:12,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:12,703 INFO L82 PathProgramCache]: Analyzing trace with hash 587834366, now seen corresponding path program 1 times
[2020-09-24 19:22:12,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:12,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339796084]
[2020-09-24 19:22:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:12,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:12,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:13,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90
[2020-09-24 19:22:13,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 19:22:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009
[2020-09-24 19:22:13,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 19:22:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36
[2020-09-24 19:22:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34
[2020-09-24 19:22:13,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:13,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:13,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:22:13,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:13,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:22:13,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:13,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-24 19:22:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:13,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:13,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:13,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:22:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-09-24 19:22:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:13,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:13,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:22:13,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:13,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-24 19:22:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:13,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:13,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:22:13,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:13,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 19:22:13,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 19:22:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:13,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2020-09-24 19:22:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:13,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:13,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:13,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 19:22:13,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:13,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:13,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:13,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-09-24 19:22:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:13,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:13,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:13,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:13,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:13,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-24 19:22:13,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:13,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-09-24 19:22:13,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339796084]
[2020-09-24 19:22:13,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:13,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-24 19:22:13,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954113983]
[2020-09-24 19:22:13,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 19:22:13,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:13,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 19:22:13,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2020-09-24 19:22:13,992 INFO L87 Difference]: Start difference. First operand 151 states and 167 transitions. Second operand 11 states.
[2020-09-24 19:22:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:14,537 INFO L93 Difference]: Finished difference Result 206 states and 227 transitions.
[2020-09-24 19:22:14,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-24 19:22:14,539 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67
[2020-09-24 19:22:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:14,541 INFO L225 Difference]: With dead ends: 206
[2020-09-24 19:22:14,541 INFO L226 Difference]: Without dead ends: 100
[2020-09-24 19:22:14,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306
[2020-09-24 19:22:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2020-09-24 19:22:14,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100.
[2020-09-24 19:22:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states.
[2020-09-24 19:22:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions.
[2020-09-24 19:22:14,554 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 67
[2020-09-24 19:22:14,554 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:14,555 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions.
[2020-09-24 19:22:14,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 19:22:14,555 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions.
[2020-09-24 19:22:14,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2020-09-24 19:22:14,556 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:14,557 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 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]
[2020-09-24 19:22:14,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 19:22:14,557 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:14,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:14,557 INFO L82 PathProgramCache]: Analyzing trace with hash 687369648, now seen corresponding path program 1 times
[2020-09-24 19:22:14,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:14,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34913884]
[2020-09-24 19:22:14,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:14,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:14,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102
[2020-09-24 19:22:15,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 19:22:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072
[2020-09-24 19:22:15,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-24 19:22:15,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36
[2020-09-24 19:22:15,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65
[2020-09-24 19:22:15,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:15,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:22:15,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:15,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:22:15,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:15,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-24 19:22:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:15,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:15,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:15,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:15,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:15,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-09-24 19:22:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:15,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:15,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:15,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:22:15,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:15,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:15,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-24 19:22:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:15,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:22:15,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 19:22:15,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 19:22:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:15,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2020-09-24 19:22:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:15,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:15,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 19:22:15,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:15,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:15,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-09-24 19:22:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 19:22:15,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:15,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 19:22:15,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:15,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:15,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:22:15,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2020-09-24 19:22:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:15,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:15,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:15,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 19:22:15,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-24 19:22:15,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 19:22:15,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:15,966 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-09-24 19:22:15,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34913884]
[2020-09-24 19:22:15,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:22:15,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-24 19:22:15,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970679457]
[2020-09-24 19:22:15,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-24 19:22:15,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:15,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-24 19:22:15,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210
[2020-09-24 19:22:15,969 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand 15 states.
[2020-09-24 19:22:16,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:16,826 INFO L93 Difference]: Finished difference Result 104 states and 110 transitions.
[2020-09-24 19:22:16,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-09-24 19:22:16,827 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79
[2020-09-24 19:22:16,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:16,828 INFO L225 Difference]: With dead ends: 104
[2020-09-24 19:22:16,828 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 19:22:16,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812
[2020-09-24 19:22:16,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 19:22:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 19:22:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 19:22:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 19:22:16,830 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79
[2020-09-24 19:22:16,831 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:16,831 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 19:22:16,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-24 19:22:16,831 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 19:22:16,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 19:22:16,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 19:22:16,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 19:22:17,503 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,503 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,503 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,503 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-24 19:22:17,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,504 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-24 19:22:17,504 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 19:22:17,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,504 INFO L271 CegarLoopResult]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true
[2020-09-24 19:22:17,504 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed.
[2020-09-24 19:22:17,504 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed.
[2020-09-24 19:22:17,505 INFO L268 CegarLoopResult]: For program point L6-3(lines 5 7) no Hoare annotation was computed.
[2020-09-24 19:22:17,505 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed.
[2020-09-24 19:22:17,505 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 38 52) no Hoare annotation was computed.
[2020-09-24 19:22:17,505 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed.
[2020-09-24 19:22:17,505 INFO L264 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= main_~ai~1 main_~ax~1) (= main_~ai~1 0) (= (select |#memory_int| |main_#t~malloc10.base|) .cse0)))
[2020-09-24 19:22:17,505 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed.
[2020-09-24 19:22:17,506 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed.
[2020-09-24 19:22:17,506 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed.
[2020-09-24 19:22:17,506 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 38 52) no Hoare annotation was computed.
[2020-09-24 19:22:17,506 INFO L264 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|)
[2020-09-24 19:22:17,506 INFO L268 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed.
[2020-09-24 19:22:17,506 INFO L268 CegarLoopResult]: For program point L44-1(line 44) no Hoare annotation was computed.
[2020-09-24 19:22:17,507 INFO L264 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|))
[2020-09-24 19:22:17,507 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed.
[2020-09-24 19:22:17,507 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 38 52) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|))
[2020-09-24 19:22:17,507 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed.
[2020-09-24 19:22:17,507 INFO L268 CegarLoopResult]: For program point L47-1(line 47) no Hoare annotation was computed.
[2020-09-24 19:22:17,508 INFO L264 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= (select |#memory_int| |main_#t~malloc10.base|) .cse0)))
[2020-09-24 19:22:17,508 INFO L268 CegarLoopResult]: For program point L47-2(line 47) no Hoare annotation was computed.
[2020-09-24 19:22:17,508 INFO L268 CegarLoopResult]: For program point L45-1(line 45) no Hoare annotation was computed.
[2020-09-24 19:22:17,508 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|))
[2020-09-24 19:22:17,508 INFO L268 CegarLoopResult]: For program point L45-2(line 45) no Hoare annotation was computed.
[2020-09-24 19:22:17,509 INFO L268 CegarLoopResult]: For program point L43-1(line 43) no Hoare annotation was computed.
[2020-09-24 19:22:17,510 INFO L268 CegarLoopResult]: For program point L45-3(line 45) no Hoare annotation was computed.
[2020-09-24 19:22:17,510 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed.
[2020-09-24 19:22:17,510 INFO L268 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed.
[2020-09-24 19:22:17,511 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed.
[2020-09-24 19:22:17,511 INFO L268 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed.
[2020-09-24 19:22:17,512 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (let ((.cse1 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) .cse1)))) (and (or .cse0 (and (= check_~ai~0 0) (= (select |#memory_int| check_~a.base) .cse1) (or (= check_~ax~0 0) (= check_~ax~0 1))) (not (<= 0 |check_#in~x|)) .cse2) (or .cse0 (not (<= 1 |check_#in~x|)) .cse2 (<= 1 check_~x)))))
[2020-09-24 19:22:17,512 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed.
[2020-09-24 19:22:17,512 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 14 36) the Hoare annotation is: true
[2020-09-24 19:22:17,512 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed.
[2020-09-24 19:22:17,513 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed.
[2020-09-24 19:22:17,513 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed.
[2020-09-24 19:22:17,513 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed.
[2020-09-24 19:22:17,513 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed.
[2020-09-24 19:22:17,513 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-09-24 19:22:17,514 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed.
[2020-09-24 19:22:17,514 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed.
[2020-09-24 19:22:17,514 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed.
[2020-09-24 19:22:17,514 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed.
[2020-09-24 19:22:17,514 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-24 19:22:17,515 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-24 19:22:17,515 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 14 36) no Hoare annotation was computed.
[2020-09-24 19:22:17,515 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed.
[2020-09-24 19:22:17,516 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed.
[2020-09-24 19:22:17,516 INFO L268 CegarLoopResult]: For program point L32-2(line 32) no Hoare annotation was computed.
[2020-09-24 19:22:17,516 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,516 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,517 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-24 19:22:17,517 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 25) no Hoare annotation was computed.
[2020-09-24 19:22:17,517 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,517 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,517 INFO L268 CegarLoopResult]: For program point L24-5(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,517 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 14 36) no Hoare annotation was computed.
[2020-09-24 19:22:17,518 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse3 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse3)))) (and (or .cse0 (not (<= 0 |check_#in~x|)) .cse1 (let ((.cse2 (+ check_~y 1))) (and (<= .cse2 |check_#in~n|) (<= 0 check_~x) (<= .cse2 check_~n) (= (select |#memory_int| check_~a.base) .cse3)))) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (<= 1 check_~x)))))
[2020-09-24 19:22:17,518 INFO L268 CegarLoopResult]: For program point L24-6(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,518 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (let ((.cse3 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse3)))) (and (or .cse0 (not (<= 0 |check_#in~x|)) .cse1 (let ((.cse2 (+ check_~y 1))) (and (<= .cse2 |check_#in~n|) (<= 0 check_~x) (<= .cse2 check_~n) (= (select |#memory_int| check_~a.base) .cse3)))) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (<= 1 check_~x)))))
[2020-09-24 19:22:17,519 INFO L268 CegarLoopResult]: For program point L24-7(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,519 INFO L268 CegarLoopResult]: For program point L24-9(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,519 INFO L268 CegarLoopResult]: For program point L14(lines 14 36) no Hoare annotation was computed.
[2020-09-24 19:22:17,519 INFO L268 CegarLoopResult]: For program point L24-10(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:17,519 INFO L268 CegarLoopResult]: For program point L14-1(lines 14 36) no Hoare annotation was computed.
[2020-09-24 19:22:17,520 INFO L264 CegarLoopResult]: At program point L24-11(lines 24 25) the Hoare annotation is: (let ((.cse1 ((as const (Array Int Int)) 0))) (let ((.cse2 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse0 (+ check_~y 1)) (.cse3 (not (= (select |#memory_int| |check_#in~a.base|) .cse1)))) (and (or (and (<= .cse0 check_~n) (= (select |#memory_int| check_~a.base) .cse1) (<= 1 check_~x)) .cse2 (not (<= 0 |check_#in~x|)) .cse3) (or .cse2 (not (<= 1 |check_#in~x|)) (<= .cse0 |check_#in~n|) .cse3))))
[2020-09-24 19:22:17,520 INFO L268 CegarLoopResult]: For program point L14-2(lines 14 36) no Hoare annotation was computed.
[2020-09-24 19:22:17,520 INFO L268 CegarLoopResult]: For program point L14-3(lines 14 36) no Hoare annotation was computed.
[2020-09-24 19:22:17,520 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 10) the Hoare annotation is: true
[2020-09-24 19:22:17,520 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 8 10) no Hoare annotation was computed.
[2020-09-24 19:22:17,520 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed.
[2020-09-24 19:22:17,521 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed.
[2020-09-24 19:22:17,521 INFO L268 CegarLoopResult]: For program point L9-3(lines 8 10) no Hoare annotation was computed.
[2020-09-24 19:22:17,521 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed.
[2020-09-24 19:22:17,521 INFO L264 CegarLoopResult]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|)
[2020-09-24 19:22:17,521 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,522 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:17,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:22:17 BoogieIcfgContainer
[2020-09-24 19:22:17,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 19:22:17,538 INFO L168 Benchmark]: Toolchain (without parser) took 13176.49 ms. Allocated memory was 140.5 MB in the beginning and 345.0 MB in the end (delta: 204.5 MB). Free memory was 103.5 MB in the beginning and 185.7 MB in the end (delta: -82.3 MB). Peak memory consumption was 122.2 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:17,540 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 19:22:17,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.51 ms. Allocated memory is still 140.5 MB. Free memory was 102.8 MB in the beginning and 92.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:17,548 INFO L168 Benchmark]: Boogie Preprocessor took 127.46 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.3 MB in the beginning and 179.9 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:17,550 INFO L168 Benchmark]: RCFGBuilder took 482.79 ms. Allocated memory is still 202.9 MB. Free memory was 179.9 MB in the beginning and 158.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:17,551 INFO L168 Benchmark]: TraceAbstraction took 12098.79 ms. Allocated memory was 202.9 MB in the beginning and 345.0 MB in the end (delta: 142.1 MB). Free memory was 157.5 MB in the beginning and 185.7 MB in the end (delta: -28.2 MB). Peak memory consumption was 113.9 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:17,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 453.51 ms. Allocated memory is still 140.5 MB. Free memory was 102.8 MB in the beginning and 92.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 127.46 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.3 MB in the beginning and 179.9 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 482.79 ms. Allocated memory is still 202.9 MB. Free memory was 179.9 MB in the beginning and 158.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 12098.79 ms. Allocated memory was 202.9 MB in the beginning and 345.0 MB in the end (delta: 142.1 MB). Free memory was 157.5 MB in the beginning and 185.7 MB in the end (delta: -28.2 MB). Peak memory consumption was 113.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 7 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 320 SDtfs, 1013 SDslu, 461 SDs, 0 SdLazy, 3079 SolverSat, 283 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 52 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 82 PreInvPairs, 95 NumberOfFragments, 308 HoareAnnotationTreeSize, 82 FomulaSimplifications, 234 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 17 FomulaSimplificationsInter, 468 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 60963 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 63/70 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 correct!
Received shutdown request...