/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_8.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 19:22:44,694 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 19:22:44,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 19:22:44,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 19:22:44,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 19:22:44,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 19:22:44,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 19:22:44,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 19:22:44,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 19:22:44,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 19:22:44,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 19:22:44,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 19:22:44,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 19:22:44,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 19:22:44,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 19:22:44,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 19:22:44,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 19:22:44,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 19:22:44,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 19:22:44,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 19:22:44,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 19:22:44,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 19:22:44,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 19:22:44,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 19:22:44,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 19:22:44,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 19:22:44,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 19:22:44,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 19:22:44,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 19:22:44,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 19:22:44,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 19:22:44,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 19:22:44,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 19:22:44,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 19:22:44,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 19:22:44,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 19:22:44,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 19:22:44,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 19:22:44,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 19:22:44,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 19:22:44,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 19:22:44,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 19:22:44,863 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 19:22:44,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 19:22:44,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 19:22:44,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 19:22:44,866 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 19:22:44,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 19:22:44,866 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 19:22:44,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 19:22:44,867 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 19:22:44,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 19:22:44,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 19:22:44,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 19:22:44,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 19:22:44,868 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 19:22:44,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 19:22:44,868 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 19:22:44,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 19:22:44,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 19:22:44,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 19:22:44,869 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 19:22:44,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 19:22:44,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 19:22:44,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 19:22:44,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 19:22:44,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 19:22:44,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 19:22:44,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 19:22:44,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 19:22:44,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 19:22:44,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
[2020-09-24 19:22:45,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 19:22:45,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 19:22:45,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 19:22:45,393 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 19:22:45,394 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 19:22:45,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_8.c
[2020-09-24 19:22:45,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ac98e969/20ddfe98bef64bc896c0eee29ee233ba/FLAG4c2ffdace
[2020-09-24 19:22:46,015 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 19:22:46,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_8.c
[2020-09-24 19:22:46,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ac98e969/20ddfe98bef64bc896c0eee29ee233ba/FLAG4c2ffdace
[2020-09-24 19:22:46,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ac98e969/20ddfe98bef64bc896c0eee29ee233ba
[2020-09-24 19:22:46,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 19:22:46,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 19:22:46,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 19:22:46,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 19:22:46,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 19:22:46,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46, skipping insertion in model container
[2020-09-24 19:22:46,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 19:22:46,416 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 19:22:46,630 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:22:46,636 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 19:22:46,665 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:22:46,684 INFO L208 MainTranslator]: Completed translation
[2020-09-24 19:22:46,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46 WrapperNode
[2020-09-24 19:22:46,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 19:22:46,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 19:22:46,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 19:22:46,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 19:22:46,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
[2020-09-24 19:22:46,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 19:22:46,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 19:22:46,806 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 19:22:46,806 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 19:22:46,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 19:22:46,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 19:22:46,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 19:22:46,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 19:22:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 19:22:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 19:22:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 19:22:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 19:22:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 19:22:47,246 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 19:22:47,247 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 19:22:47,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:47 BoogieIcfgContainer
[2020-09-24 19:22:47,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 19:22:47,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 19:22:47,268 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 19:22:47,274 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 19:22:47,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:22:46" (1/3) ...
[2020-09-24 19:22:47,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e2320b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:47, skipping insertion in model container
[2020-09-24 19:22:47,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:46" (2/3) ...
[2020-09-24 19:22:47,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e2320b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:47, skipping insertion in model container
[2020-09-24 19:22:47,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:47" (3/3) ...
[2020-09-24 19:22:47,285 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_8.c
[2020-09-24 19:22:47,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 19:22:47,305 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 19:22:47,325 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 19:22:47,356 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 19:22:47,357 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 19:22:47,357 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 19:22:47,357 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 19:22:47,357 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 19:22:47,358 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 19:22:47,358 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 19:22:47,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 19:22:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states.
[2020-09-24 19:22:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2020-09-24 19:22:47,393 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:47,395 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]
[2020-09-24 19:22:47,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:47,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1717644884, now seen corresponding path program 1 times
[2020-09-24 19:22:47,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:47,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152656156]
[2020-09-24 19:22:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:47,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:47,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68
[2020-09-24 19:22:47,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206
[2020-09-24 19:22:47,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:47,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:47,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57
[2020-09-24 19:22:47,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:47,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 19:22:47,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:47,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:47,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:47,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:47,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:47,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:22:47,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:47,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:47,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:47,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:47,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:47,917 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 19:22:47,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152656156]
[2020-09-24 19:22:47,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:47,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:47,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994772489]
[2020-09-24 19:22:47,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:47,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:47,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:47,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:47,951 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states.
[2020-09-24 19:22:48,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:48,035 INFO L93 Difference]: Finished difference Result 213 states and 291 transitions.
[2020-09-24 19:22:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:48,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61
[2020-09-24 19:22:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:48,059 INFO L225 Difference]: With dead ends: 213
[2020-09-24 19:22:48,059 INFO L226 Difference]: Without dead ends: 144
[2020-09-24 19:22:48,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2020-09-24 19:22:48,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142.
[2020-09-24 19:22:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states.
[2020-09-24 19:22:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions.
[2020-09-24 19:22:48,123 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 61
[2020-09-24 19:22:48,124 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:48,124 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions.
[2020-09-24 19:22:48,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:48,124 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions.
[2020-09-24 19:22:48,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-09-24 19:22:48,126 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:48,127 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]
[2020-09-24 19:22:48,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 19:22:48,127 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:48,128 INFO L82 PathProgramCache]: Analyzing trace with hash 16380224, now seen corresponding path program 1 times
[2020-09-24 19:22:48,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832834212]
[2020-09-24 19:22:48,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69
[2020-09-24 19:22:48,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88
[2020-09-24 19:22:48,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:48,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58
[2020-09-24 19:22:48,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:48,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:48,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:48,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:48,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:48,295 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 19:22:48,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832834212]
[2020-09-24 19:22:48,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:48,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:48,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651101116]
[2020-09-24 19:22:48,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:48,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:48,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,300 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand 3 states.
[2020-09-24 19:22:48,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:48,323 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions.
[2020-09-24 19:22:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:48,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62
[2020-09-24 19:22:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:48,327 INFO L225 Difference]: With dead ends: 173
[2020-09-24 19:22:48,327 INFO L226 Difference]: Without dead ends: 171
[2020-09-24 19:22:48,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2020-09-24 19:22:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 142.
[2020-09-24 19:22:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states.
[2020-09-24 19:22:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions.
[2020-09-24 19:22:48,343 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 62
[2020-09-24 19:22:48,343 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:48,343 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions.
[2020-09-24 19:22:48,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions.
[2020-09-24 19:22:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-09-24 19:22:48,346 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:48,346 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]
[2020-09-24 19:22:48,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 19:22:48,347 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:48,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1707628474, now seen corresponding path program 1 times
[2020-09-24 19:22:48,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156720555]
[2020-09-24 19:22:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69
[2020-09-24 19:22:48,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68
[2020-09-24 19:22:48,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58
[2020-09-24 19:22:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:48,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:48,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:48,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:48,500 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 19:22:48,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156720555]
[2020-09-24 19:22:48,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:48,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:48,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826996112]
[2020-09-24 19:22:48,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:48,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:48,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,504 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand 3 states.
[2020-09-24 19:22:48,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:48,526 INFO L93 Difference]: Finished difference Result 346 states and 473 transitions.
[2020-09-24 19:22:48,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:48,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62
[2020-09-24 19:22:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:48,530 INFO L225 Difference]: With dead ends: 346
[2020-09-24 19:22:48,530 INFO L226 Difference]: Without dead ends: 241
[2020-09-24 19:22:48,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states.
[2020-09-24 19:22:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239.
[2020-09-24 19:22:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-24 19:22:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 320 transitions.
[2020-09-24 19:22:48,555 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 320 transitions. Word has length 62
[2020-09-24 19:22:48,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:48,556 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 320 transitions.
[2020-09-24 19:22:48,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 320 transitions.
[2020-09-24 19:22:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-09-24 19:22:48,562 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:48,562 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]
[2020-09-24 19:22:48,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 19:22:48,563 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:48,564 INFO L82 PathProgramCache]: Analyzing trace with hash -298745719, now seen corresponding path program 1 times
[2020-09-24 19:22:48,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514187488]
[2020-09-24 19:22:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70
[2020-09-24 19:22:48,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87
[2020-09-24 19:22:48,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:48,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59
[2020-09-24 19:22:48,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:48,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:48,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:48,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:48,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:48,716 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 19:22:48,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514187488]
[2020-09-24 19:22:48,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:48,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:48,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988295401]
[2020-09-24 19:22:48,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:48,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:48,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,719 INFO L87 Difference]: Start difference. First operand 239 states and 320 transitions. Second operand 3 states.
[2020-09-24 19:22:48,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:48,738 INFO L93 Difference]: Finished difference Result 293 states and 396 transitions.
[2020-09-24 19:22:48,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:48,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63
[2020-09-24 19:22:48,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:48,748 INFO L225 Difference]: With dead ends: 293
[2020-09-24 19:22:48,748 INFO L226 Difference]: Without dead ends: 291
[2020-09-24 19:22:48,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states.
[2020-09-24 19:22:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 239.
[2020-09-24 19:22:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-24 19:22:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions.
[2020-09-24 19:22:48,782 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 63
[2020-09-24 19:22:48,782 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:48,782 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions.
[2020-09-24 19:22:48,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions.
[2020-09-24 19:22:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-09-24 19:22:48,788 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:48,792 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]
[2020-09-24 19:22:48,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 19:22:48,792 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:48,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1397120136, now seen corresponding path program 1 times
[2020-09-24 19:22:48,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123975893]
[2020-09-24 19:22:48,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70
[2020-09-24 19:22:48,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61
[2020-09-24 19:22:48,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:48,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59
[2020-09-24 19:22:48,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:48,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:48,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:48,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:48,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:48,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:48,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:48,910 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 19:22:48,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123975893]
[2020-09-24 19:22:48,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:48,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:48,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426705772]
[2020-09-24 19:22:48,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:48,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:48,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,913 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand 3 states.
[2020-09-24 19:22:48,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:48,932 INFO L93 Difference]: Finished difference Result 631 states and 864 transitions.
[2020-09-24 19:22:48,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:48,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63
[2020-09-24 19:22:48,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:48,936 INFO L225 Difference]: With dead ends: 631
[2020-09-24 19:22:48,936 INFO L226 Difference]: Without dead ends: 429
[2020-09-24 19:22:48,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:48,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states.
[2020-09-24 19:22:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427.
[2020-09-24 19:22:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states.
[2020-09-24 19:22:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 574 transitions.
[2020-09-24 19:22:48,954 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 574 transitions. Word has length 63
[2020-09-24 19:22:48,954 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:48,955 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 574 transitions.
[2020-09-24 19:22:48,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:48,955 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 574 transitions.
[2020-09-24 19:22:48,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-09-24 19:22:48,957 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:48,957 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]
[2020-09-24 19:22:48,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 19:22:48,957 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:48,958 INFO L82 PathProgramCache]: Analyzing trace with hash 361296622, now seen corresponding path program 1 times
[2020-09-24 19:22:48,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:48,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34536255]
[2020-09-24 19:22:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:48,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:22:49,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49
[2020-09-24 19:22:49,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60
[2020-09-24 19:22:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:49,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:49,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:49,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,059 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 19:22:49,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34536255]
[2020-09-24 19:22:49,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:49,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:49,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757571435]
[2020-09-24 19:22:49,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:49,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:49,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,062 INFO L87 Difference]: Start difference. First operand 427 states and 574 transitions. Second operand 3 states.
[2020-09-24 19:22:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:49,090 INFO L93 Difference]: Finished difference Result 1183 states and 1616 transitions.
[2020-09-24 19:22:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:49,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64
[2020-09-24 19:22:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:49,095 INFO L225 Difference]: With dead ends: 1183
[2020-09-24 19:22:49,096 INFO L226 Difference]: Without dead ends: 793
[2020-09-24 19:22:49,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states.
[2020-09-24 19:22:49,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791.
[2020-09-24 19:22:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states.
[2020-09-24 19:22:49,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1062 transitions.
[2020-09-24 19:22:49,123 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1062 transitions. Word has length 64
[2020-09-24 19:22:49,124 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:49,124 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1062 transitions.
[2020-09-24 19:22:49,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1062 transitions.
[2020-09-24 19:22:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-09-24 19:22:49,126 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:49,127 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]
[2020-09-24 19:22:49,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-24 19:22:49,127 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:49,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1477714988, now seen corresponding path program 1 times
[2020-09-24 19:22:49,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960267661]
[2020-09-24 19:22:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:22:49,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51
[2020-09-24 19:22:49,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60
[2020-09-24 19:22:49,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:49,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:49,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:49,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:49,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:49,239 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 19:22:49,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960267661]
[2020-09-24 19:22:49,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:49,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:49,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444582545]
[2020-09-24 19:22:49,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:49,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:49,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,242 INFO L87 Difference]: Start difference. First operand 791 states and 1062 transitions. Second operand 3 states.
[2020-09-24 19:22:49,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:49,269 INFO L93 Difference]: Finished difference Result 971 states and 1312 transitions.
[2020-09-24 19:22:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:49,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64
[2020-09-24 19:22:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:49,274 INFO L225 Difference]: With dead ends: 971
[2020-09-24 19:22:49,275 INFO L226 Difference]: Without dead ends: 969
[2020-09-24 19:22:49,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states.
[2020-09-24 19:22:49,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 791.
[2020-09-24 19:22:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states.
[2020-09-24 19:22:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1054 transitions.
[2020-09-24 19:22:49,299 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1054 transitions. Word has length 64
[2020-09-24 19:22:49,299 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:49,299 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1054 transitions.
[2020-09-24 19:22:49,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1054 transitions.
[2020-09-24 19:22:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2020-09-24 19:22:49,301 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:49,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:22:49,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-24 19:22:49,302 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:49,302 INFO L82 PathProgramCache]: Analyzing trace with hash 628943709, now seen corresponding path program 1 times
[2020-09-24 19:22:49,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505953671]
[2020-09-24 19:22:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72
[2020-09-24 19:22:49,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-24 19:22:49,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:49,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61
[2020-09-24 19:22:49,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:49,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:49,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:22:49,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:49,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:49,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:49,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:49,396 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 19:22:49,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505953671]
[2020-09-24 19:22:49,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:49,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:49,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356590250]
[2020-09-24 19:22:49,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:49,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:49,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,398 INFO L87 Difference]: Start difference. First operand 791 states and 1054 transitions. Second operand 3 states.
[2020-09-24 19:22:49,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:49,430 INFO L93 Difference]: Finished difference Result 963 states and 1288 transitions.
[2020-09-24 19:22:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:49,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65
[2020-09-24 19:22:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:49,435 INFO L225 Difference]: With dead ends: 963
[2020-09-24 19:22:49,435 INFO L226 Difference]: Without dead ends: 961
[2020-09-24 19:22:49,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states.
[2020-09-24 19:22:49,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 791.
[2020-09-24 19:22:49,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states.
[2020-09-24 19:22:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions.
[2020-09-24 19:22:49,465 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 65
[2020-09-24 19:22:49,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:49,466 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions.
[2020-09-24 19:22:49,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:49,466 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions.
[2020-09-24 19:22:49,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2020-09-24 19:22:49,467 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:49,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:22:49,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-24 19:22:49,468 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:49,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:49,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1684460868, now seen corresponding path program 1 times
[2020-09-24 19:22:49,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494805227]
[2020-09-24 19:22:49,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72
[2020-09-24 19:22:49,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58
[2020-09-24 19:22:49,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:49,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61
[2020-09-24 19:22:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:49,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-24 19:22:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:49,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:49,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:49,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:49,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,584 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 19:22:49,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494805227]
[2020-09-24 19:22:49,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:49,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:49,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783938912]
[2020-09-24 19:22:49,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:49,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:49,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,592 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand 3 states.
[2020-09-24 19:22:49,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:49,627 INFO L93 Difference]: Finished difference Result 2251 states and 3000 transitions.
[2020-09-24 19:22:49,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:49,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65
[2020-09-24 19:22:49,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:49,635 INFO L225 Difference]: With dead ends: 2251
[2020-09-24 19:22:49,635 INFO L226 Difference]: Without dead ends: 1497
[2020-09-24 19:22:49,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states.
[2020-09-24 19:22:49,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1495.
[2020-09-24 19:22:49,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states.
[2020-09-24 19:22:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1958 transitions.
[2020-09-24 19:22:49,669 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1958 transitions. Word has length 65
[2020-09-24 19:22:49,670 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:49,670 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1958 transitions.
[2020-09-24 19:22:49,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1958 transitions.
[2020-09-24 19:22:49,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2020-09-24 19:22:49,672 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:49,672 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]
[2020-09-24 19:22:49,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-24 19:22:49,672 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:49,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:49,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1510854248, now seen corresponding path program 1 times
[2020-09-24 19:22:49,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863752026]
[2020-09-24 19:22:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-09-24 19:22:49,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-09-24 19:22:49,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62
[2020-09-24 19:22:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:49,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:22:49,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:49,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:49,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,750 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 19:22:49,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863752026]
[2020-09-24 19:22:49,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:49,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:49,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182739910]
[2020-09-24 19:22:49,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:49,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:49,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,752 INFO L87 Difference]: Start difference. First operand 1495 states and 1958 transitions. Second operand 3 states.
[2020-09-24 19:22:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:49,778 INFO L93 Difference]: Finished difference Result 1803 states and 2360 transitions.
[2020-09-24 19:22:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:49,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66
[2020-09-24 19:22:49,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:49,786 INFO L225 Difference]: With dead ends: 1803
[2020-09-24 19:22:49,786 INFO L226 Difference]: Without dead ends: 1801
[2020-09-24 19:22:49,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states.
[2020-09-24 19:22:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1495.
[2020-09-24 19:22:49,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states.
[2020-09-24 19:22:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1942 transitions.
[2020-09-24 19:22:49,820 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1942 transitions. Word has length 66
[2020-09-24 19:22:49,820 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:49,820 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1942 transitions.
[2020-09-24 19:22:49,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:49,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1942 transitions.
[2020-09-24 19:22:49,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2020-09-24 19:22:49,840 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:49,840 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]
[2020-09-24 19:22:49,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-09-24 19:22:49,841 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:49,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:49,841 INFO L82 PathProgramCache]: Analyzing trace with hash -678433246, now seen corresponding path program 1 times
[2020-09-24 19:22:49,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651873918]
[2020-09-24 19:22:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-09-24 19:22:49,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 19:22:49,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62
[2020-09-24 19:22:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:49,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:49,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:49,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:49,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:49,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:49,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:22:49,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:49,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:49,952 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 19:22:49,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651873918]
[2020-09-24 19:22:49,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:49,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:49,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763601783]
[2020-09-24 19:22:49,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:49,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:49,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:49,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:49,955 INFO L87 Difference]: Start difference. First operand 1495 states and 1942 transitions. Second operand 3 states.
[2020-09-24 19:22:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:50,008 INFO L93 Difference]: Finished difference Result 4315 states and 5624 transitions.
[2020-09-24 19:22:50,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:50,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66
[2020-09-24 19:22:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:50,021 INFO L225 Difference]: With dead ends: 4315
[2020-09-24 19:22:50,021 INFO L226 Difference]: Without dead ends: 2857
[2020-09-24 19:22:50,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:50,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states.
[2020-09-24 19:22:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2855.
[2020-09-24 19:22:50,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states.
[2020-09-24 19:22:50,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3654 transitions.
[2020-09-24 19:22:50,094 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3654 transitions. Word has length 66
[2020-09-24 19:22:50,094 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:50,094 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3654 transitions.
[2020-09-24 19:22:50,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:50,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3654 transitions.
[2020-09-24 19:22:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-09-24 19:22:50,097 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:50,097 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]
[2020-09-24 19:22:50,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-09-24 19:22:50,098 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:50,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:50,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1214689743, now seen corresponding path program 1 times
[2020-09-24 19:22:50,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:50,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179905326]
[2020-09-24 19:22:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:50,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:50,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:50,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74
[2020-09-24 19:22:50,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:50,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53
[2020-09-24 19:22:50,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63
[2020-09-24 19:22:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:50,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:50,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:50,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:50,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:50,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:50,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:50,192 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 19:22:50,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179905326]
[2020-09-24 19:22:50,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:50,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:50,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946087875]
[2020-09-24 19:22:50,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:50,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:50,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:50,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:50,194 INFO L87 Difference]: Start difference. First operand 2855 states and 3654 transitions. Second operand 3 states.
[2020-09-24 19:22:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:50,230 INFO L93 Difference]: Finished difference Result 3403 states and 4328 transitions.
[2020-09-24 19:22:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:50,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67
[2020-09-24 19:22:50,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:50,247 INFO L225 Difference]: With dead ends: 3403
[2020-09-24 19:22:50,247 INFO L226 Difference]: Without dead ends: 3401
[2020-09-24 19:22:50,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:50,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states.
[2020-09-24 19:22:50,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 2855.
[2020-09-24 19:22:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states.
[2020-09-24 19:22:50,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3622 transitions.
[2020-09-24 19:22:50,340 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3622 transitions. Word has length 67
[2020-09-24 19:22:50,340 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:50,341 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3622 transitions.
[2020-09-24 19:22:50,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:50,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3622 transitions.
[2020-09-24 19:22:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-09-24 19:22:50,344 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:50,344 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]
[2020-09-24 19:22:50,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2020-09-24 19:22:50,345 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:50,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:50,345 INFO L82 PathProgramCache]: Analyzing trace with hash 443652336, now seen corresponding path program 1 times
[2020-09-24 19:22:50,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:50,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112065070]
[2020-09-24 19:22:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:50,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:50,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:50,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74
[2020-09-24 19:22:50,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:50,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50
[2020-09-24 19:22:50,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63
[2020-09-24 19:22:50,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:50,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:50,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:50,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:50,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:50,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:50,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:50,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:22:50,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:50,474 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 19:22:50,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112065070]
[2020-09-24 19:22:50,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:50,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:50,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295471780]
[2020-09-24 19:22:50,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:50,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:50,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:50,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:50,477 INFO L87 Difference]: Start difference. First operand 2855 states and 3622 transitions. Second operand 3 states.
[2020-09-24 19:22:50,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:50,545 INFO L93 Difference]: Finished difference Result 8299 states and 10536 transitions.
[2020-09-24 19:22:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:50,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67
[2020-09-24 19:22:50,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:50,572 INFO L225 Difference]: With dead ends: 8299
[2020-09-24 19:22:50,573 INFO L226 Difference]: Without dead ends: 5481
[2020-09-24 19:22:50,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:50,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states.
[2020-09-24 19:22:50,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5479.
[2020-09-24 19:22:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states.
[2020-09-24 19:22:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6822 transitions.
[2020-09-24 19:22:50,743 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6822 transitions. Word has length 67
[2020-09-24 19:22:50,743 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:50,743 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6822 transitions.
[2020-09-24 19:22:50,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:50,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6822 transitions.
[2020-09-24 19:22:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2020-09-24 19:22:50,748 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:50,748 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]
[2020-09-24 19:22:50,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2020-09-24 19:22:50,748 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:50,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:50,749 INFO L82 PathProgramCache]: Analyzing trace with hash 192792828, now seen corresponding path program 1 times
[2020-09-24 19:22:50,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:50,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987230290]
[2020-09-24 19:22:50,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:50,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:50,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:50,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75
[2020-09-24 19:22:50,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53
[2020-09-24 19:22:50,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64
[2020-09-24 19:22:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:50,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:50,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:50,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:50,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:50,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:50,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:50,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:50,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:50,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:22:50,852 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 19:22:50,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987230290]
[2020-09-24 19:22:50,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:50,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:50,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469659991]
[2020-09-24 19:22:50,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:50,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:50,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:50,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:50,854 INFO L87 Difference]: Start difference. First operand 5479 states and 6822 transitions. Second operand 3 states.
[2020-09-24 19:22:50,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:50,915 INFO L93 Difference]: Finished difference Result 6443 states and 7912 transitions.
[2020-09-24 19:22:50,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:50,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68
[2020-09-24 19:22:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:50,943 INFO L225 Difference]: With dead ends: 6443
[2020-09-24 19:22:50,943 INFO L226 Difference]: Without dead ends: 6441
[2020-09-24 19:22:50,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:50,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states.
[2020-09-24 19:22:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 5479.
[2020-09-24 19:22:51,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states.
[2020-09-24 19:22:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6758 transitions.
[2020-09-24 19:22:51,142 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6758 transitions. Word has length 68
[2020-09-24 19:22:51,142 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:51,143 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6758 transitions.
[2020-09-24 19:22:51,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6758 transitions.
[2020-09-24 19:22:51,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2020-09-24 19:22:51,148 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:51,149 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]
[2020-09-24 19:22:51,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2020-09-24 19:22:51,149 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:51,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:51,150 INFO L82 PathProgramCache]: Analyzing trace with hash 868567382, now seen corresponding path program 1 times
[2020-09-24 19:22:51,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:51,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969636438]
[2020-09-24 19:22:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:51,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:51,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75
[2020-09-24 19:22:51,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:51,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49
[2020-09-24 19:22:51,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64
[2020-09-24 19:22:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:22:51,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:51,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:51,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:51,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:51,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:51,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:51,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:22:51,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:51,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:51,238 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 19:22:51,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969636438]
[2020-09-24 19:22:51,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:51,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:51,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205659847]
[2020-09-24 19:22:51,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:51,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:51,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:51,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:51,241 INFO L87 Difference]: Start difference. First operand 5479 states and 6758 transitions. Second operand 3 states.
[2020-09-24 19:22:51,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:51,356 INFO L93 Difference]: Finished difference Result 15977 states and 19687 transitions.
[2020-09-24 19:22:51,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:51,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68
[2020-09-24 19:22:51,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:51,394 INFO L225 Difference]: With dead ends: 15977
[2020-09-24 19:22:51,394 INFO L226 Difference]: Without dead ends: 5479
[2020-09-24 19:22:51,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:51,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states.
[2020-09-24 19:22:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479.
[2020-09-24 19:22:51,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states.
[2020-09-24 19:22:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6502 transitions.
[2020-09-24 19:22:51,533 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6502 transitions. Word has length 68
[2020-09-24 19:22:51,533 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:51,534 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6502 transitions.
[2020-09-24 19:22:51,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6502 transitions.
[2020-09-24 19:22:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2020-09-24 19:22:51,539 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:22:51,539 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]
[2020-09-24 19:22:51,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2020-09-24 19:22:51,540 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:22:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:22:51,540 INFO L82 PathProgramCache]: Analyzing trace with hash 875079941, now seen corresponding path program 1 times
[2020-09-24 19:22:51,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:22:51,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160424192]
[2020-09-24 19:22:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:22:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:51,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:51,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:51,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-24 19:22:51,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54
[2020-09-24 19:22:51,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:22:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65
[2020-09-24 19:22:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 19:22:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:51,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:22:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:22:51,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:22:51,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:22:51,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:22:51,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:22:51,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:22:51,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:22:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:22:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:22:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:22:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:22:51,632 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 19:22:51,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160424192]
[2020-09-24 19:22:51,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:22:51,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 19:22:51,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055266480]
[2020-09-24 19:22:51,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 19:22:51,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:22:51,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 19:22:51,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:51,636 INFO L87 Difference]: Start difference. First operand 5479 states and 6502 transitions. Second operand 3 states.
[2020-09-24 19:22:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:22:51,674 INFO L93 Difference]: Finished difference Result 5479 states and 6502 transitions.
[2020-09-24 19:22:51,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 19:22:51,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69
[2020-09-24 19:22:51,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:22:51,675 INFO L225 Difference]: With dead ends: 5479
[2020-09-24 19:22:51,675 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 19:22:51,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 19:22:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 19:22:51,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 19:22:51,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 19:22:51,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 19:22:51,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69
[2020-09-24 19:22:51,686 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:22:51,686 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 19:22:51,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 19:22:51,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 19:22:51,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 19:22:51,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2020-09-24 19:22:51,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 19:22:51,715 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-24 19:22:51,716 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:51,716 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:51,716 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-24 19:22:51,716 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 19:22:51,716 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 19:22:51,716 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed.
[2020-09-24 19:22:51,716 INFO L264 CegarLoopResult]: At program point L126-1(lines 5 135) the Hoare annotation is: false
[2020-09-24 19:22:51,717 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed.
[2020-09-24 19:22:51,717 INFO L268 CegarLoopResult]: For program point L60-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,717 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed.
[2020-09-24 19:22:51,717 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed.
[2020-09-24 19:22:51,717 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 135) no Hoare annotation was computed.
[2020-09-24 19:22:51,717 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed.
[2020-09-24 19:22:51,717 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed.
[2020-09-24 19:22:51,718 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed.
[2020-09-24 19:22:51,718 INFO L268 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed.
[2020-09-24 19:22:51,718 INFO L268 CegarLoopResult]: For program point L110-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,718 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed.
[2020-09-24 19:22:51,718 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed.
[2020-09-24 19:22:51,718 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed.
[2020-09-24 19:22:51,718 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L95-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,719 INFO L268 CegarLoopResult]: For program point L120-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 135) no Hoare annotation was computed.
[2020-09-24 19:22:51,720 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed.
[2020-09-24 19:22:51,721 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed.
[2020-09-24 19:22:51,721 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed.
[2020-09-24 19:22:51,721 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 135) the Hoare annotation is: true
[2020-09-24 19:22:51,721 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed.
[2020-09-24 19:22:51,721 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-24 19:22:51,721 INFO L268 CegarLoopResult]: For program point L80-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,722 INFO L268 CegarLoopResult]: For program point L105-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,722 INFO L268 CegarLoopResult]: For program point L72-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,722 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed.
[2020-09-24 19:22:51,722 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed.
[2020-09-24 19:22:51,722 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed.
[2020-09-24 19:22:51,722 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed.
[2020-09-24 19:22:51,722 INFO L268 CegarLoopResult]: For program point L64-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L56-2(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed.
[2020-09-24 19:22:51,723 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed.
[2020-09-24 19:22:51,724 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed.
[2020-09-24 19:22:51,724 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed.
[2020-09-24 19:22:51,724 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed.
[2020-09-24 19:22:51,724 INFO L271 CegarLoopResult]: At program point L131(lines 5 135) the Hoare annotation is: true
[2020-09-24 19:22:51,724 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed.
[2020-09-24 19:22:51,724 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed.
[2020-09-24 19:22:51,724 INFO L268 CegarLoopResult]: For program point L90-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,725 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:51,725 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:51,725 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed.
[2020-09-24 19:22:51,725 INFO L268 CegarLoopResult]: For program point L115-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,725 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed.
[2020-09-24 19:22:51,725 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed.
[2020-09-24 19:22:51,726 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed.
[2020-09-24 19:22:51,726 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-09-24 19:22:51,726 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed.
[2020-09-24 19:22:51,726 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed.
[2020-09-24 19:22:51,726 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed.
[2020-09-24 19:22:51,726 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed.
[2020-09-24 19:22:51,726 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed.
[2020-09-24 19:22:51,727 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed.
[2020-09-24 19:22:51,727 INFO L268 CegarLoopResult]: For program point L100-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,727 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed.
[2020-09-24 19:22:51,727 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed.
[2020-09-24 19:22:51,727 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed.
[2020-09-24 19:22:51,727 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed.
[2020-09-24 19:22:51,727 INFO L271 CegarLoopResult]: At program point L125-1(lines 33 130) the Hoare annotation is: true
[2020-09-24 19:22:51,727 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L84-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L76-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed.
[2020-09-24 19:22:51,728 INFO L268 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed.
[2020-09-24 19:22:51,729 INFO L268 CegarLoopResult]: For program point L68-1(lines 33 130) no Hoare annotation was computed.
[2020-09-24 19:22:51,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:22:51 BoogieIcfgContainer
[2020-09-24 19:22:51,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 19:22:51,746 INFO L168 Benchmark]: Toolchain (without parser) took 5386.65 ms. Allocated memory was 141.6 MB in the beginning and 286.8 MB in the end (delta: 145.2 MB). Free memory was 105.0 MB in the beginning and 80.2 MB in the end (delta: 24.7 MB). Peak memory consumption was 169.9 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:51,747 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 19:22:51,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.04 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 93.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:51,748 INFO L168 Benchmark]: Boogie Preprocessor took 119.50 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 93.5 MB in the beginning and 179.5 MB in the end (delta: -86.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:51,749 INFO L168 Benchmark]: RCFGBuilder took 448.02 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 157.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:51,750 INFO L168 Benchmark]: TraceAbstraction took 4475.07 ms. Allocated memory was 201.9 MB in the beginning and 286.8 MB in the end (delta: 84.9 MB). Free memory was 157.5 MB in the beginning and 80.2 MB in the end (delta: 77.3 MB). Peak memory consumption was 162.2 MB. Max. memory is 7.1 GB.
[2020-09-24 19:22:51,752 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 321.04 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 93.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 119.50 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 93.5 MB in the beginning and 179.5 MB in the end (delta: -86.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 448.02 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 157.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 4475.07 ms. Allocated memory was 201.9 MB in the beginning and 286.8 MB in the end (delta: 84.9 MB). Free memory was 157.5 MB in the beginning and 80.2 MB in the end (delta: 77.3 MB). Peak memory consumption was 162.2 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 33]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 5]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 5]: Loop Invariant
Derived loop invariant: 1
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2345 SDtfs, 845 SDslu, 1664 SDs, 0 SdLazy, 79 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5479occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 16 MinimizatonAttempts, 2257 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 265 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 83040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 correct!
Received shutdown request...