/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:13:36,690 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:13:36,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:13:36,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:13:36,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:13:36,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:13:36,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:13:36,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:13:36,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:13:36,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:13:36,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:13:36,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:13:36,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:13:36,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:13:36,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:13:36,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:13:36,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:13:36,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:13:36,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:13:36,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:13:36,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:13:36,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:13:36,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:13:36,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:13:36,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:13:36,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:13:36,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:13:36,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:13:36,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:13:36,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:13:36,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:13:36,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:13:36,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:13:36,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:13:36,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:13:36,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:13:36,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:13:36,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:13:36,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:13:36,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:13:36,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:13:36,807 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 16:13:36,854 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 16:13:36,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:13:36,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:13:36,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 16:13:36,856 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 16:13:36,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:13:36,857 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 16:13:36,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 16:13:36,858 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 16:13:36,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 16:13:36,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:13:36,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:13:36,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:13:36,860 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 16:13:36,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 16:13:36,860 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 16:13:36,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:13:36,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:13:36,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 16:13:36,861 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 16:13:36,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 16:13:36,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:13:36,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:13:36,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:13:36,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:13:36,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 16:13:36,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:13:36,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:13:36,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 16:13:36,863 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true;
[2020-09-24 16:13:37,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:13:37,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:13:37,312 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:13:37,314 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 16:13:37,314 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 16:13:37,315 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2020-09-24 16:13:37,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5eb3cb182/c9511af8933b44c5bb8e6eeaf6898f6e/FLAGd45ea35af
[2020-09-24 16:13:37,997 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 16:13:37,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2020-09-24 16:13:38,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5eb3cb182/c9511af8933b44c5bb8e6eeaf6898f6e/FLAGd45ea35af
[2020-09-24 16:13:38,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5eb3cb182/c9511af8933b44c5bb8e6eeaf6898f6e
[2020-09-24 16:13:38,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:13:38,264 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:13:38,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:13:38,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:13:38,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:13:38,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:13:38" (1/1) ...
[2020-09-24 16:13:38,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a9c366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:38, skipping insertion in model container
[2020-09-24 16:13:38,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:13:38" (1/1) ...
[2020-09-24 16:13:38,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 16:13:38,364 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:13:39,026 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:13:39,058 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 16:13:39,495 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:13:39,518 INFO L208 MainTranslator]: Completed translation
[2020-09-24 16:13:39,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39 WrapperNode
[2020-09-24 16:13:39,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:13:39,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:13:39,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:13:39,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:13:39,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (1/1) ...
[2020-09-24 16:13:39,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (1/1) ...
[2020-09-24 16:13:39,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (1/1) ...
[2020-09-24 16:13:39,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (1/1) ...
[2020-09-24 16:13:39,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (1/1) ...
[2020-09-24 16:13:39,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (1/1) ...
[2020-09-24 16:13:39,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (1/1) ...
[2020-09-24 16:13:39,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:13:39,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:13:39,665 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:13:39,665 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:13:39,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (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 16:13:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:13:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:13:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 16:13:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:13:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:13:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2020-09-24 16:13:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-09-24 16:13:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure assert
[2020-09-24 16:13:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 16:13:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 16:13:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure read
[2020-09-24 16:13:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure write
[2020-09-24 16:13:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure node1
[2020-09-24 16:13:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure node2
[2020-09-24 16:13:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure node3
[2020-09-24 16:13:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure init
[2020-09-24 16:13:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure check
[2020-09-24 16:13:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:13:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:13:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:13:41,765 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:13:41,766 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 16:13:41,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:13:41 BoogieIcfgContainer
[2020-09-24 16:13:41,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:13:41,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:13:41,781 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:13:41,785 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:13:41,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:13:38" (1/3) ...
[2020-09-24 16:13:41,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683c83bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:13:41, skipping insertion in model container
[2020-09-24 16:13:41,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:13:39" (2/3) ...
[2020-09-24 16:13:41,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683c83bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:13:41, skipping insertion in model container
[2020-09-24 16:13:41,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:13:41" (3/3) ...
[2020-09-24 16:13:41,789 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c
[2020-09-24 16:13:41,801 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:13:41,812 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-09-24 16:13:41,833 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-09-24 16:13:41,868 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:13:41,868 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 16:13:41,868 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:13:41,868 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:13:41,868 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:13:41,868 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 16:13:41,869 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:13:41,869 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:13:41,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states.
[2020-09-24 16:13:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466
[2020-09-24 16:13:41,956 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:13:41,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:13:41,958 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:13:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:13:41,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1578062424, now seen corresponding path program 1 times
[2020-09-24 16:13:41,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:13:41,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541190521]
[2020-09-24 16:13:41,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:13:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:13:42,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:13:42,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:13:42,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:13:42,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:13:42,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472
[2020-09-24 16:13:42,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:13:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-09-24 16:13:42,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:13:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:13:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212
[2020-09-24 16:13:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213
[2020-09-24 16:13:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:13:43,415 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-09-24 16:13:43,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:13:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:13:43,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:13:43,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:13:43,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:13:43,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:13:43,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 16:13:43,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:13:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:13:43,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:13:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:13:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:13:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:13:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:13:43,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:13:43,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541190521]
[2020-09-24 16:13:43,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:13:43,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:13:43,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580787732]
[2020-09-24 16:13:43,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:13:43,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:13:43,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:13:43,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:13:43,890 INFO L87 Difference]: Start difference. First operand 1237 states. Second operand 4 states.
[2020-09-24 16:13:48,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:13:48,422 INFO L93 Difference]: Finished difference Result 2024 states and 2590 transitions.
[2020-09-24 16:13:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-24 16:13:48,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 465
[2020-09-24 16:13:48,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:13:48,457 INFO L225 Difference]: With dead ends: 2024
[2020-09-24 16:13:48,458 INFO L226 Difference]: Without dead ends: 1455
[2020-09-24 16:13:48,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:13:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states.
[2020-09-24 16:13:48,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1448.
[2020-09-24 16:13:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states.
[2020-09-24 16:13:48,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1727 transitions.
[2020-09-24 16:13:48,616 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1727 transitions. Word has length 465
[2020-09-24 16:13:48,620 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:13:48,620 INFO L479 AbstractCegarLoop]: Abstraction has 1448 states and 1727 transitions.
[2020-09-24 16:13:48,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:13:48,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1727 transitions.
[2020-09-24 16:13:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466
[2020-09-24 16:13:48,634 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:13:48,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:13:48,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:13:48,635 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:13:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:13:48,636 INFO L82 PathProgramCache]: Analyzing trace with hash 888544568, now seen corresponding path program 1 times
[2020-09-24 16:13:48,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:13:48,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098207210]
[2020-09-24 16:13:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:13:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:13:48,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:13:48,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:13:48,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:13:48,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:13:48,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472
[2020-09-24 16:13:48,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:13:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:13:48,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:13:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 16:13:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179
[2020-09-24 16:13:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-09-24 16:13:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:13:49,372 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-09-24 16:13:49,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:13:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:13:49,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:13:49,387 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:13:49,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:13:49,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:13:49,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 16:13:49,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:13:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:13:49,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:13:49,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:13:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:13:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:13:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-24 16:13:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:13:49,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098207210]
[2020-09-24 16:13:49,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:13:49,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:13:49,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470128964]
[2020-09-24 16:13:49,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:13:49,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:13:49,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:13:49,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:13:49,675 INFO L87 Difference]: Start difference. First operand 1448 states and 1727 transitions. Second operand 5 states.
[2020-09-24 16:13:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:13:55,813 INFO L93 Difference]: Finished difference Result 3896 states and 4702 transitions.
[2020-09-24 16:13:55,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-24 16:13:55,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 465
[2020-09-24 16:13:55,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:13:55,830 INFO L225 Difference]: With dead ends: 3896
[2020-09-24 16:13:55,830 INFO L226 Difference]: Without dead ends: 2640
[2020-09-24 16:13:55,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 16:13:55,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states.
[2020-09-24 16:13:55,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2513.
[2020-09-24 16:13:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2513 states.
[2020-09-24 16:13:55,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 3033 transitions.
[2020-09-24 16:13:55,917 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 3033 transitions. Word has length 465
[2020-09-24 16:13:55,917 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:13:55,918 INFO L479 AbstractCegarLoop]: Abstraction has 2513 states and 3033 transitions.
[2020-09-24 16:13:55,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:13:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 3033 transitions.
[2020-09-24 16:13:55,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467
[2020-09-24 16:13:55,929 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:13:55,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:13:55,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:13:55,930 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:13:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:13:55,931 INFO L82 PathProgramCache]: Analyzing trace with hash 481500190, now seen corresponding path program 1 times
[2020-09-24 16:13:55,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:13:55,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950409608]
[2020-09-24 16:13:55,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:13:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:13:56,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:13:56,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:13:56,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:13:56,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:13:56,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 473
[2020-09-24 16:13:56,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:13:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:13:56,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:13:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:13:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186
[2020-09-24 16:13:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:13:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:13:56,509 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-09-24 16:13:56,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:13:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:13:56,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:13:56,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:13:56,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:13:56,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:13:56,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 16:13:56,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:13:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:13:56,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:13:56,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:13:56,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:13:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:13:56,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:13:56,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:13:56,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950409608]
[2020-09-24 16:13:56,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:13:56,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:13:56,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970860218]
[2020-09-24 16:13:56,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:13:56,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:13:56,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:13:56,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:13:56,856 INFO L87 Difference]: Start difference. First operand 2513 states and 3033 transitions. Second operand 4 states.
[2020-09-24 16:14:01,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:14:01,423 INFO L93 Difference]: Finished difference Result 7118 states and 8654 transitions.
[2020-09-24 16:14:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-24 16:14:01,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 466
[2020-09-24 16:14:01,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:14:01,445 INFO L225 Difference]: With dead ends: 7118
[2020-09-24 16:14:01,445 INFO L226 Difference]: Without dead ends: 4831
[2020-09-24 16:14:01,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:14:01,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states.
[2020-09-24 16:14:01,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 2515.
[2020-09-24 16:14:01,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2515 states.
[2020-09-24 16:14:01,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3035 transitions.
[2020-09-24 16:14:01,545 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3035 transitions. Word has length 466
[2020-09-24 16:14:01,545 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:14:01,546 INFO L479 AbstractCegarLoop]: Abstraction has 2515 states and 3035 transitions.
[2020-09-24 16:14:01,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:14:01,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3035 transitions.
[2020-09-24 16:14:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468
[2020-09-24 16:14:01,557 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:14:01,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:14:01,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 16:14:01,558 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:14:01,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:14:01,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1054735442, now seen corresponding path program 1 times
[2020-09-24 16:14:01,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:14:01,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945329448]
[2020-09-24 16:14:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:14:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:01,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:01,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:01,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:01,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:01,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 474
[2020-09-24 16:14:01,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:01,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:14:01,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 16:14:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181
[2020-09-24 16:14:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 16:14:01,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:14:02,333 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-09-24 16:14:02,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:14:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:02,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:02,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:02,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:02,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:02,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 16:14:02,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-09-24 16:14:02,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:14:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:14:02,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:14:02,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:14:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:14:02,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945329448]
[2020-09-24 16:14:02,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:14:02,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:14:02,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047664437]
[2020-09-24 16:14:02,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:14:02,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:14:02,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:14:02,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:14:02,838 INFO L87 Difference]: Start difference. First operand 2515 states and 3035 transitions. Second operand 5 states.
[2020-09-24 16:14:08,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:14:08,517 INFO L93 Difference]: Finished difference Result 6969 states and 8451 transitions.
[2020-09-24 16:14:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-24 16:14:08,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 467
[2020-09-24 16:14:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:14:08,540 INFO L225 Difference]: With dead ends: 6969
[2020-09-24 16:14:08,540 INFO L226 Difference]: Without dead ends: 4683
[2020-09-24 16:14:08,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 16:14:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4683 states.
[2020-09-24 16:14:08,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4683 to 4556.
[2020-09-24 16:14:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4556 states.
[2020-09-24 16:14:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 5513 transitions.
[2020-09-24 16:14:08,675 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 5513 transitions. Word has length 467
[2020-09-24 16:14:08,676 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:14:08,676 INFO L479 AbstractCegarLoop]: Abstraction has 4556 states and 5513 transitions.
[2020-09-24 16:14:08,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:14:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 5513 transitions.
[2020-09-24 16:14:08,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469
[2020-09-24 16:14:08,690 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:14:08,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:14:08,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 16:14:08,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:14:08,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:14:08,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2011953776, now seen corresponding path program 1 times
[2020-09-24 16:14:08,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:14:08,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533160151]
[2020-09-24 16:14:08,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:14:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:08,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:08,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:08,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:08,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:08,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 475
[2020-09-24 16:14:08,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:08,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:14:08,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:14:08,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194
[2020-09-24 16:14:08,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:14:08,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:14:09,144 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-09-24 16:14:09,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:14:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:09,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:09,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:09,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:09,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:09,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 16:14:09,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:09,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:14:09,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:09,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:14:09,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:14:09,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:14:09,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:14:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:14:09,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533160151]
[2020-09-24 16:14:09,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:14:09,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:14:09,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255227966]
[2020-09-24 16:14:09,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:14:09,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:14:09,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:14:09,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:14:09,298 INFO L87 Difference]: Start difference. First operand 4556 states and 5513 transitions. Second operand 4 states.
[2020-09-24 16:14:13,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:14:13,717 INFO L93 Difference]: Finished difference Result 13184 states and 16011 transitions.
[2020-09-24 16:14:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-24 16:14:13,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 468
[2020-09-24 16:14:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:14:13,744 INFO L225 Difference]: With dead ends: 13184
[2020-09-24 16:14:13,744 INFO L226 Difference]: Without dead ends: 8877
[2020-09-24 16:14:13,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:14:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states.
[2020-09-24 16:14:13,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 4560.
[2020-09-24 16:14:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4560 states.
[2020-09-24 16:14:13,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 5517 transitions.
[2020-09-24 16:14:13,902 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 5517 transitions. Word has length 468
[2020-09-24 16:14:13,903 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:14:13,903 INFO L479 AbstractCegarLoop]: Abstraction has 4560 states and 5517 transitions.
[2020-09-24 16:14:13,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:14:13,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 5517 transitions.
[2020-09-24 16:14:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470
[2020-09-24 16:14:13,913 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:14:13,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:14:13,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 16:14:13,914 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:14:13,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:14:13,914 INFO L82 PathProgramCache]: Analyzing trace with hash 120554772, now seen corresponding path program 1 times
[2020-09-24 16:14:13,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:14:13,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829312157]
[2020-09-24 16:14:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:14:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:14,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:14,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:14,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:14,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:14,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 476
[2020-09-24 16:14:14,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:14:14,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 16:14:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183
[2020-09-24 16:14:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85
[2020-09-24 16:14:14,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:14:14,528 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-09-24 16:14:14,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:14:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:14,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:14,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:14,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:14,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:14,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 16:14:14,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:14,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:14:14,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:14,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:14:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:14:14,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:14:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:14:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:14:15,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829312157]
[2020-09-24 16:14:15,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:14:15,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:14:15,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490786505]
[2020-09-24 16:14:15,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:14:15,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:14:15,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:14:15,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:14:15,027 INFO L87 Difference]: Start difference. First operand 4560 states and 5517 transitions. Second operand 5 states.
[2020-09-24 16:14:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:14:21,519 INFO L93 Difference]: Finished difference Result 12037 states and 14582 transitions.
[2020-09-24 16:14:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-24 16:14:21,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 469
[2020-09-24 16:14:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:14:21,546 INFO L225 Difference]: With dead ends: 12037
[2020-09-24 16:14:21,547 INFO L226 Difference]: Without dead ends: 7732
[2020-09-24 16:14:21,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 16:14:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states.
[2020-09-24 16:14:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 7605.
[2020-09-24 16:14:21,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7605 states.
[2020-09-24 16:14:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7605 states to 7605 states and 9168 transitions.
[2020-09-24 16:14:21,749 INFO L78 Accepts]: Start accepts. Automaton has 7605 states and 9168 transitions. Word has length 469
[2020-09-24 16:14:21,749 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:14:21,749 INFO L479 AbstractCegarLoop]: Abstraction has 7605 states and 9168 transitions.
[2020-09-24 16:14:21,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:14:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7605 states and 9168 transitions.
[2020-09-24 16:14:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471
[2020-09-24 16:14:21,764 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:14:21,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:14:21,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-24 16:14:21,765 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:14:21,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:14:21,765 INFO L82 PathProgramCache]: Analyzing trace with hash -2145778150, now seen corresponding path program 1 times
[2020-09-24 16:14:21,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:14:21,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73629276]
[2020-09-24 16:14:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:14:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:21,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:21,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:21,832 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:21,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:21,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 477
[2020-09-24 16:14:21,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:14:21,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:14:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202
[2020-09-24 16:14:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:14:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:14:22,213 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-09-24 16:14:22,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:14:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:14:22,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:14:22,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:14:22,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:14:22,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:14:22,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 16:14:22,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:14:22,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:14:22,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:14:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:14:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:14:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:14:22,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:14:22,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:14:22,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73629276]
[2020-09-24 16:14:22,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:14:22,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:14:22,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493653517]
[2020-09-24 16:14:22,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:14:22,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:14:22,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:14:22,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:14:22,532 INFO L87 Difference]: Start difference. First operand 7605 states and 9168 transitions. Second operand 4 states.
[2020-09-24 16:14:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:14:27,024 INFO L93 Difference]: Finished difference Result 21817 states and 26360 transitions.
[2020-09-24 16:14:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-24 16:14:27,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 470
[2020-09-24 16:14:27,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:14:27,053 INFO L225 Difference]: With dead ends: 21817
[2020-09-24 16:14:27,053 INFO L226 Difference]: Without dead ends: 14879
[2020-09-24 16:14:27,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:14:27,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14879 states.
[2020-09-24 16:14:27,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14879 to 7613.
[2020-09-24 16:14:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7613 states.
[2020-09-24 16:14:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7613 states to 7613 states and 9176 transitions.
[2020-09-24 16:14:27,322 INFO L78 Accepts]: Start accepts. Automaton has 7613 states and 9176 transitions. Word has length 470
[2020-09-24 16:14:27,322 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:14:27,322 INFO L479 AbstractCegarLoop]: Abstraction has 7613 states and 9176 transitions.
[2020-09-24 16:14:27,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:14:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7613 states and 9176 transitions.
[2020-09-24 16:14:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472
[2020-09-24 16:14:27,334 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 16:14:27,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:14:27,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-24 16:14:27,335 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:14:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:14:27,335 INFO L82 PathProgramCache]: Analyzing trace with hash 37669246, now seen corresponding path program 1 times
[2020-09-24 16:14:27,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:14:27,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432610946]
[2020-09-24 16:14:27,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:14:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 16:14:27,495 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 16:14:27,496 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 16:14:27,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-24 16:14:27,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:14:27 BoogieIcfgContainer
[2020-09-24 16:14:27,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 16:14:27,573 INFO L168 Benchmark]: Toolchain (without parser) took 49313.34 ms. Allocated memory was 140.0 MB in the beginning and 990.9 MB in the end (delta: 850.9 MB). Free memory was 101.2 MB in the beginning and 585.4 MB in the end (delta: -484.2 MB). Peak memory consumption was 366.7 MB. Max. memory is 7.1 GB.
[2020-09-24 16:14:27,574 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 16:14:27,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1253.31 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 160.1 MB in the end (delta: -59.5 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB.
[2020-09-24 16:14:27,575 INFO L168 Benchmark]: Boogie Preprocessor took 144.97 ms. Allocated memory is still 203.9 MB. Free memory was 160.1 MB in the beginning and 155.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB.
[2020-09-24 16:14:27,576 INFO L168 Benchmark]: RCFGBuilder took 2115.60 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 155.1 MB in the beginning and 190.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 108.9 MB. Max. memory is 7.1 GB.
[2020-09-24 16:14:27,577 INFO L168 Benchmark]: TraceAbstraction took 45789.50 ms. Allocated memory was 248.0 MB in the beginning and 990.9 MB in the end (delta: 742.9 MB). Free memory was 188.3 MB in the beginning and 585.4 MB in the end (delta: -397.1 MB). Peak memory consumption was 345.8 MB. Max. memory is 7.1 GB.
[2020-09-24 16:14:27,581 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 1253.31 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 160.1 MB in the end (delta: -59.5 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 144.97 ms. Allocated memory is still 203.9 MB. Free memory was 160.1 MB in the beginning and 155.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 2115.60 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 155.1 MB in the beginning and 190.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 108.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 45789.50 ms. Allocated memory was 248.0 MB in the beginning and 990.9 MB in the end (delta: 742.9 MB). Free memory was 188.3 MB in the beginning and 585.4 MB in the end (delta: -397.1 MB). Peak memory consumption was 345.8 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 871]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L1] int __return_main;
[L14] msg_t nomsg = (msg_t )-1;
[L15] port_t p12 = 0;
[L16] char p12_old = '\x0';
[L17] char p12_new = '\x0';
[L18] _Bool ep12 = 0;
[L19] port_t p13 = 0;
[L20] char p13_old = '\x0';
[L21] char p13_new = '\x0';
[L22] _Bool ep13 = 0;
[L23] port_t p21 = 0;
[L24] char p21_old = '\x0';
[L25] char p21_new = '\x0';
[L26] _Bool ep21 = 0;
[L27] port_t p23 = 0;
[L28] char p23_old = '\x0';
[L29] char p23_new = '\x0';
[L30] _Bool ep23 = 0;
[L31] port_t p31 = 0;
[L32] char p31_old = '\x0';
[L33] char p31_new = '\x0';
[L34] _Bool ep31 = 0;
[L35] port_t p32 = 0;
[L36] char p32_old = '\x0';
[L37] char p32_new = '\x0';
[L38] _Bool ep32 = 0;
[L39] char id1 = '\x0';
[L40] char r1 = '\x0';
[L41] char st1 = '\x0';
[L42] char nl1 = '\x0';
[L43] char m1 = '\x0';
[L44] char max1 = '\x0';
[L45] _Bool mode1 = 0;
[L46] _Bool newmax1 = 0;
[L47] char id2 = '\x0';
[L48] char r2 = '\x0';
[L49] char st2 = '\x0';
[L50] char nl2 = '\x0';
[L51] char m2 = '\x0';
[L52] char max2 = '\x0';
[L53] _Bool mode2 = 0;
[L54] _Bool newmax2 = 0;
[L55] char id3 = '\x0';
[L56] char r3 = '\x0';
[L57] char st3 = '\x0';
[L58] char nl3 = '\x0';
[L59] char m3 = '\x0';
[L60] char max3 = '\x0';
[L61] _Bool mode3 = 0;
[L62] _Bool newmax3 = 0;
[L66] void (*nodes[3])() = { &node1, &node2, &node3 };
[L70] int __return_1863;
[L71] int __return_2009;
[L72] int __return_2142;
[L73] int __return_2281;
[L74] int __return_3069;
[L75] int __return_3038;
[L76] int __return_2975;
[L77] int __return_2941;
[L78] int __tmp_2420_0;
[L79] int __return_2543;
[L80] int __return_2433;
[L81] int __return_2828;
[L82] int __return_2794;
[L83] int __return_2710;
[L84] int __return_2419;
[L87] int main__c1;
[L88] int main__i2;
[L89] main__c1 = 0
[L90] ep12 = __VERIFIER_nondet_bool()
[L91] ep13 = __VERIFIER_nondet_bool()
[L92] ep21 = __VERIFIER_nondet_bool()
[L93] ep23 = __VERIFIER_nondet_bool()
[L94] ep31 = __VERIFIER_nondet_bool()
[L95] ep32 = __VERIFIER_nondet_bool()
[L96] id1 = __VERIFIER_nondet_char()
[L97] r1 = __VERIFIER_nondet_char()
[L98] st1 = __VERIFIER_nondet_char()
[L99] nl1 = __VERIFIER_nondet_char()
[L100] m1 = __VERIFIER_nondet_char()
[L101] max1 = __VERIFIER_nondet_char()
[L102] mode1 = __VERIFIER_nondet_bool()
[L103] newmax1 = __VERIFIER_nondet_bool()
[L104] id2 = __VERIFIER_nondet_char()
[L105] r2 = __VERIFIER_nondet_char()
[L106] st2 = __VERIFIER_nondet_char()
[L107] nl2 = __VERIFIER_nondet_char()
[L108] m2 = __VERIFIER_nondet_char()
[L109] max2 = __VERIFIER_nondet_char()
[L110] mode2 = __VERIFIER_nondet_bool()
[L111] newmax2 = __VERIFIER_nondet_bool()
[L112] id3 = __VERIFIER_nondet_char()
[L113] r3 = __VERIFIER_nondet_char()
[L114] st3 = __VERIFIER_nondet_char()
[L115] nl3 = __VERIFIER_nondet_char()
[L116] m3 = __VERIFIER_nondet_char()
[L117] max3 = __VERIFIER_nondet_char()
[L118] mode3 = __VERIFIER_nondet_bool()
[L119] newmax3 = __VERIFIER_nondet_bool()
[L121] _Bool init__r121;
[L122] _Bool init__r131;
[L123] _Bool init__r211;
[L124] _Bool init__r231;
[L125] _Bool init__r311;
[L126] _Bool init__r321;
[L127] _Bool init__r122;
[L128] int init__tmp;
[L129] _Bool init__r132;
[L130] int init__tmp___0;
[L131] _Bool init__r212;
[L132] int init__tmp___1;
[L133] _Bool init__r232;
[L134] int init__tmp___2;
[L135] _Bool init__r312;
[L136] int init__tmp___3;
[L137] _Bool init__r322;
[L138] int init__tmp___4;
[L139] int init__tmp___5;
[L140] init__r121 = ep12
[L141] init__r131 = ep13
[L142] init__r211 = ep21
[L143] init__r231 = ep23
[L144] init__r311 = ep31
[L145] init__r321 = ep32
[L146] COND FALSE !(!(init__r121 == 0))
[L3140] COND FALSE !(!(init__r131 == 0))
[L3156] init__tmp = 0
[L150] init__r122 = (_Bool)init__tmp
[L151] COND FALSE !(!(init__r131 == 0))
[L3117] COND FALSE !(!(init__r121 == 0))
[L3133] init__tmp___0 = 0
[L155] init__r132 = (_Bool)init__tmp___0
[L156] COND FALSE !(!(init__r211 == 0))
[L3094] COND FALSE !(!(init__r231 == 0))
[L3110] init__tmp___1 = 0
[L160] init__r212 = (_Bool)init__tmp___1
[L161] COND FALSE !(!(init__r231 == 0))
[L3071] COND FALSE !(!(init__r211 == 0))
[L3087] init__tmp___2 = 0
[L165] init__r232 = (_Bool)init__tmp___2
[L166] COND FALSE !(!(init__r311 == 0))
[L3048] COND FALSE !(!(init__r321 == 0))
[L3064] init__tmp___3 = 0
[L170] init__r312 = (_Bool)init__tmp___3
[L171] COND FALSE !(!(init__r321 == 0))
[L3025] COND FALSE !(!(init__r311 == 0))
[L3041] init__tmp___4 = 0
[L175] init__r322 = (_Bool)init__tmp___4
[L176] COND TRUE ((int)id1) != ((int)id2)
[L178] COND TRUE ((int)id1) != ((int)id3)
[L180] COND TRUE ((int)id2) != ((int)id3)
[L182] COND TRUE ((int)id1) >= 0
[L184] COND TRUE ((int)id2) >= 0
[L186] COND TRUE ((int)id3) >= 0
[L188] COND TRUE ((int)r1) == 0
[L190] COND TRUE ((int)r2) == 0
[L192] COND TRUE ((int)r3) == 0
[L194] COND TRUE ((int)max1) == ((int)id1)
[L196] COND TRUE ((int)max2) == ((int)id2)
[L198] COND TRUE ((int)max3) == ((int)id3)
[L200] COND TRUE ((int)st1) == 0
[L202] COND TRUE ((int)st2) == 0
[L204] COND TRUE ((int)st3) == 0
[L206] COND TRUE ((int)nl1) == 0
[L208] COND TRUE ((int)nl2) == 0
[L210] COND TRUE ((int)nl3) == 0
[L212] COND TRUE ((int)mode1) == 0
[L214] COND TRUE ((int)mode2) == 0
[L216] COND TRUE ((int)mode3) == 0
[L218] COND TRUE !(newmax1 == 0)
[L220] COND TRUE !(newmax2 == 0)
[L222] COND TRUE !(newmax3 == 0)
[L224] init__tmp___5 = 1
[L225] __return_1863 = init__tmp___5
[L226] main__i2 = __return_1863
[L227] COND TRUE main__i2 != 0
[L229] p12_old = nomsg
[L230] p12_new = nomsg
[L231] p13_old = nomsg
[L232] p13_new = nomsg
[L233] p21_old = nomsg
[L234] p21_new = nomsg
[L235] p23_old = nomsg
[L236] p23_new = nomsg
[L237] p31_old = nomsg
[L238] p31_new = nomsg
[L239] p32_old = nomsg
[L240] p32_new = nomsg
[L241] main__i2 = 0
[L242] COND TRUE main__i2 < 6
[L245] _Bool node1__newmax;
[L246] node1__newmax = 0
[L247] COND FALSE !(!(mode1 == 0))
[L253] COND TRUE ((int)r1) < 2
[L255] COND FALSE !(!(ep12 == 0))
[L268] COND FALSE !(!(ep13 == 0))
[L281] mode1 = 1
[L283] _Bool node2__newmax;
[L284] node2__newmax = 0
[L285] COND FALSE !(!(mode2 == 0))
[L291] COND TRUE ((int)r2) < 2
[L293] COND FALSE !(!(ep21 == 0))
[L306] COND FALSE !(!(ep23 == 0))
[L319] mode2 = 1
[L321] _Bool node3__newmax;
[L322] node3__newmax = 0
[L323] COND FALSE !(!(mode3 == 0))
[L329] COND TRUE ((int)r3) < 2
[L331] COND FALSE !(!(ep31 == 0))
[L344] COND FALSE !(!(ep32 == 0))
[L357] mode3 = 1
[L358] p12_old = p12_new
[L359] p12_new = nomsg
[L360] p13_old = p13_new
[L361] p13_new = nomsg
[L362] p21_old = p21_new
[L363] p21_new = nomsg
[L364] p23_old = p23_new
[L365] p23_new = nomsg
[L366] p31_old = p31_new
[L367] p31_new = nomsg
[L368] p32_old = p32_new
[L369] p32_new = nomsg
[L371] int check__tmp;
[L372] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L374] COND TRUE (((int)st1) + ((int)nl1)) <= 1
[L376] COND TRUE (((int)st2) + ((int)nl2)) <= 1
[L378] COND TRUE (((int)st3) + ((int)nl3)) <= 1
[L380] COND FALSE !(((int)r1) >= 2)
[L386] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L388] COND TRUE ((int)r1) < 2
[L390] COND FALSE !(((int)r1) >= 2)
[L396] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L398] COND TRUE ((int)r1) < 2
[L400] check__tmp = 1
[L401] __return_2009 = check__tmp
[L402] main__c1 = __return_2009
[L404] _Bool __tmp_1;
[L405] __tmp_1 = main__c1
[L406] _Bool assert__arg;
[L407] assert__arg = __tmp_1
[L408] COND FALSE !(assert__arg == 0)
[L414] int main____CPAchecker_TMP_0 = main__i2;
[L415] main__i2 = main__i2 + 1
[L416] COND TRUE main__i2 < 6
[L419] _Bool node1__newmax;
[L420] node1__newmax = 0
[L421] COND TRUE !(mode1 == 0)
[L423] r1 = (char)(((int)r1) + 1)
[L424] COND FALSE !(!(ep21 == 0))
[L433] COND FALSE !(!(ep31 == 0))
[L442] newmax1 = node1__newmax
[L443] COND FALSE !(((int)r1) == 2)
[L449] mode1 = 0
[L451] _Bool node2__newmax;
[L452] node2__newmax = 0
[L453] COND TRUE !(mode2 == 0)
[L455] r2 = (char)(((int)r2) + 1)
[L456] COND FALSE !(!(ep12 == 0))
[L465] COND FALSE !(!(ep32 == 0))
[L474] newmax2 = node2__newmax
[L475] COND FALSE !(((int)r2) == 2)
[L481] mode2 = 0
[L483] _Bool node3__newmax;
[L484] node3__newmax = 0
[L485] COND TRUE !(mode3 == 0)
[L487] r3 = (char)(((int)r3) + 1)
[L488] COND FALSE !(!(ep13 == 0))
[L497] COND FALSE !(!(ep23 == 0))
[L506] newmax3 = node3__newmax
[L507] COND FALSE !(((int)r3) == 2)
[L513] mode3 = 0
[L514] p12_old = p12_new
[L515] p12_new = nomsg
[L516] p13_old = p13_new
[L517] p13_new = nomsg
[L518] p21_old = p21_new
[L519] p21_new = nomsg
[L520] p23_old = p23_new
[L521] p23_new = nomsg
[L522] p31_old = p31_new
[L523] p31_new = nomsg
[L524] p32_old = p32_new
[L525] p32_new = nomsg
[L527] int check__tmp;
[L528] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L530] COND TRUE (((int)st1) + ((int)nl1)) <= 1
[L532] COND TRUE (((int)st2) + ((int)nl2)) <= 1
[L534] COND TRUE (((int)st3) + ((int)nl3)) <= 1
[L536] COND FALSE !(((int)r1) >= 2)
[L542] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L544] COND TRUE ((int)r1) < 2
[L546] COND FALSE !(((int)r1) >= 2)
[L552] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L554] COND TRUE ((int)r1) < 2
[L556] check__tmp = 1
[L557] __return_2142 = check__tmp
[L558] main__c1 = __return_2142
[L560] _Bool __tmp_2;
[L561] __tmp_2 = main__c1
[L562] _Bool assert__arg;
[L563] assert__arg = __tmp_2
[L564] COND FALSE !(assert__arg == 0)
[L570] int main____CPAchecker_TMP_0 = main__i2;
[L571] main__i2 = main__i2 + 1
[L572] COND TRUE main__i2 < 6
[L575] _Bool node1__newmax;
[L576] node1__newmax = 0
[L577] COND FALSE !(!(mode1 == 0))
[L583] COND TRUE ((int)r1) < 2
[L585] COND FALSE !(!(ep12 == 0))
[L598] COND FALSE !(!(ep13 == 0))
[L611] mode1 = 1
[L613] _Bool node2__newmax;
[L614] node2__newmax = 0
[L615] COND FALSE !(!(mode2 == 0))
[L621] COND TRUE ((int)r2) < 2
[L623] COND FALSE !(!(ep21 == 0))
[L636] COND FALSE !(!(ep23 == 0))
[L649] mode2 = 1
[L651] _Bool node3__newmax;
[L652] node3__newmax = 0
[L653] COND FALSE !(!(mode3 == 0))
[L659] COND TRUE ((int)r3) < 2
[L661] COND FALSE !(!(ep31 == 0))
[L674] COND FALSE !(!(ep32 == 0))
[L687] mode3 = 1
[L688] p12_old = p12_new
[L689] p12_new = nomsg
[L690] p13_old = p13_new
[L691] p13_new = nomsg
[L692] p21_old = p21_new
[L693] p21_new = nomsg
[L694] p23_old = p23_new
[L695] p23_new = nomsg
[L696] p31_old = p31_new
[L697] p31_new = nomsg
[L698] p32_old = p32_new
[L699] p32_new = nomsg
[L701] int check__tmp;
[L702] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L704] COND TRUE (((int)st1) + ((int)nl1)) <= 1
[L706] COND TRUE (((int)st2) + ((int)nl2)) <= 1
[L708] COND TRUE (((int)st3) + ((int)nl3)) <= 1
[L710] COND FALSE !(((int)r1) >= 2)
[L716] COND TRUE ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L718] COND TRUE ((int)r1) < 2
[L720] COND FALSE !(((int)r1) >= 2)
[L726] COND TRUE ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L728] COND TRUE ((int)r1) < 2
[L730] check__tmp = 1
[L731] __return_2281 = check__tmp
[L732] main__c1 = __return_2281
[L734] _Bool __tmp_3;
[L735] __tmp_3 = main__c1
[L736] _Bool assert__arg;
[L737] assert__arg = __tmp_3
[L738] COND FALSE !(assert__arg == 0)
[L744] int main____CPAchecker_TMP_0 = main__i2;
[L745] main__i2 = main__i2 + 1
[L746] COND TRUE main__i2 < 6
[L749] _Bool node1__newmax;
[L750] node1__newmax = 0
[L751] COND TRUE !(mode1 == 0)
[L753] r1 = (char)(((int)r1) + 1)
[L754] COND FALSE !(!(ep21 == 0))
[L763] COND FALSE !(!(ep31 == 0))
[L772] newmax1 = node1__newmax
[L773] COND TRUE ((int)r1) == 2
[L775] COND TRUE ((int)max1) == ((int)id1)
[L777] st1 = 1
[L778] mode1 = 0
[L780] _Bool node2__newmax;
[L781] node2__newmax = 0
[L782] COND TRUE !(mode2 == 0)
[L784] r2 = (char)(((int)r2) + 1)
[L785] COND FALSE !(!(ep12 == 0))
[L794] COND FALSE !(!(ep32 == 0))
[L803] newmax2 = node2__newmax
[L804] COND TRUE ((int)r2) == 2
[L806] COND TRUE ((int)max2) == ((int)id2)
[L808] st2 = 1
[L809] mode2 = 0
[L811] _Bool node3__newmax;
[L812] node3__newmax = 0
[L813] COND TRUE !(mode3 == 0)
[L815] r3 = (char)(((int)r3) + 1)
[L816] COND FALSE !(!(ep13 == 0))
[L825] COND FALSE !(!(ep23 == 0))
[L834] newmax3 = node3__newmax
[L835] COND TRUE ((int)r3) == 2
[L837] COND TRUE ((int)max3) == ((int)id3)
[L839] st3 = 1
[L840] mode3 = 0
[L841] p12_old = p12_new
[L842] p12_new = nomsg
[L843] p13_old = p13_new
[L844] p13_new = nomsg
[L845] p21_old = p21_new
[L846] p21_new = nomsg
[L847] p23_old = p23_new
[L848] p23_new = nomsg
[L849] p31_old = p31_new
[L850] p31_new = nomsg
[L851] p32_old = p32_new
[L852] p32_new = nomsg
[L854] int check__tmp;
[L855] COND FALSE !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L861] check__tmp = 0
[L862] __return_3069 = check__tmp
[L863] main__c1 = __return_3069
[L865] _Bool __tmp_4;
[L866] __tmp_4 = main__c1
[L867] _Bool assert__arg;
[L868] assert__arg = __tmp_4
[L869] COND TRUE assert__arg == 0
[L871] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 1242 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 45.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 36.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12020 SDtfs, 10971 SDslu, 8916 SDs, 0 SdLazy, 12317 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7613occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 14287 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 3741 NumberOfCodeBlocks, 3741 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3263 ConstructedInterpolants, 0 QuantifiedInterpolants, 3159456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...