/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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_5.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:36:19,152 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:36:19,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:36:19,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:36:19,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:36:19,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:36:19,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:36:19,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:36:19,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:36:19,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:36:19,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:36:19,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:36:19,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:36:19,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:36:19,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:36:19,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:36:19,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:36:19,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:36:19,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:36:19,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:36:19,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:36:19,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:36:19,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:36:19,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:36:19,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:36:19,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:36:19,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:36:19,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:36:19,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:36:19,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:36:19,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:36:19,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:36:19,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:36:19,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:36:19,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:36:19,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:36:19,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:36:19,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:36:19,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:36:19,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:36:19,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:36:19,289 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 21:36:19,331 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 21:36:19,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:36:19,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:36:19,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 21:36:19,334 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 21:36:19,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:36:19,335 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 21:36:19,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 21:36:19,335 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 21:36:19,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 21:36:19,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:36:19,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:36:19,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:36:19,337 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 21:36:19,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 21:36:19,338 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 21:36:19,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:36:19,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:36:19,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 21:36:19,339 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 21:36:19,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 21:36:19,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:36:19,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:36:19,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:36:19,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:36:19,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 21:36:19,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:36:19,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:36:19,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 21:36:19,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:36:19,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:36:19,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:36:19,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:36:19,813 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 21:36:19,814 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 21:36:19,815 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c
[2020-09-24 21:36:19,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f407fd272/681ff2f8368a444bbed1d3cf5fe9a7f2/FLAGd14ada980
[2020-09-24 21:36:20,442 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 21:36:20,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_5.c
[2020-09-24 21:36:20,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f407fd272/681ff2f8368a444bbed1d3cf5fe9a7f2/FLAGd14ada980
[2020-09-24 21:36:20,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f407fd272/681ff2f8368a444bbed1d3cf5fe9a7f2
[2020-09-24 21:36:20,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:36:20,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:36:20,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:36:20,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:36:20,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:36:20,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:36:20" (1/1) ...
[2020-09-24 21:36:20,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54535c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:20, skipping insertion in model container
[2020-09-24 21:36:20,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:36:20" (1/1) ...
[2020-09-24 21:36:20,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 21:36:20,903 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:36:21,143 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:36:21,149 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 21:36:21,174 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:36:21,193 INFO L208 MainTranslator]: Completed translation
[2020-09-24 21:36:21,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21 WrapperNode
[2020-09-24 21:36:21,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:36:21,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:36:21,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:36:21,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:36:21,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (1/1) ...
[2020-09-24 21:36:21,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (1/1) ...
[2020-09-24 21:36:21,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (1/1) ...
[2020-09-24 21:36:21,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (1/1) ...
[2020-09-24 21:36:21,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (1/1) ...
[2020-09-24 21:36:21,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (1/1) ...
[2020-09-24 21:36:21,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (1/1) ...
[2020-09-24 21:36:21,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:36:21,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:36:21,318 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:36:21,318 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:36:21,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (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 21:36:21,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:36:21,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:36:21,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:36:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:36:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:36:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:36:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:36:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:36:21,771 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:36:21,772 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 21:36:21,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:36:21 BoogieIcfgContainer
[2020-09-24 21:36:21,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:36:21,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:36:21,779 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:36:21,782 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:36:21,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:36:20" (1/3) ...
[2020-09-24 21:36:21,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5f35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:36:21, skipping insertion in model container
[2020-09-24 21:36:21,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:36:21" (2/3) ...
[2020-09-24 21:36:21,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5f35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:36:21, skipping insertion in model container
[2020-09-24 21:36:21,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:36:21" (3/3) ...
[2020-09-24 21:36:21,787 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_5.c
[2020-09-24 21:36:21,800 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:36:21,811 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:36:21,834 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:36:21,867 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:36:21,868 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 21:36:21,868 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:36:21,868 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:36:21,868 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:36:21,868 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 21:36:21,869 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:36:21,869 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:36:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states.
[2020-09-24 21:36:21,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-09-24 21:36:21,901 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:21,902 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]
[2020-09-24 21:36:21,903 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:21,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:21,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1222569836, now seen corresponding path program 1 times
[2020-09-24 21:36:21,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:21,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988740411]
[2020-09-24 21:36:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:22,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:22,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-24 21:36:22,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:22,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160
[2020-09-24 21:36:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42
[2020-09-24 21:36:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:36:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 21:36:22,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:22,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:22,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:22,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:22,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:22,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:36:22,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:36:22,347 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 21:36:22,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988740411]
[2020-09-24 21:36:22,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:22,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:22,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27927851]
[2020-09-24 21:36:22,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:22,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:22,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:22,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:22,382 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states.
[2020-09-24 21:36:22,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:22,466 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions.
[2020-09-24 21:36:22,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:22,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43
[2020-09-24 21:36:22,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:22,483 INFO L225 Difference]: With dead ends: 147
[2020-09-24 21:36:22,483 INFO L226 Difference]: Without dead ends: 96
[2020-09-24 21:36:22,488 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 21:36:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2020-09-24 21:36:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94.
[2020-09-24 21:36:22,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states.
[2020-09-24 21:36:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions.
[2020-09-24 21:36:22,548 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 43
[2020-09-24 21:36:22,549 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:22,549 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions.
[2020-09-24 21:36:22,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions.
[2020-09-24 21:36:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-09-24 21:36:22,552 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:22,552 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]
[2020-09-24 21:36:22,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:36:22,553 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:22,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1252462105, now seen corresponding path program 1 times
[2020-09-24 21:36:22,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:22,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810522668]
[2020-09-24 21:36:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:22,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:22,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:22,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 21:36:22,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:22,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107
[2020-09-24 21:36:22,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43
[2020-09-24 21:36:22,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:36:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:36:22,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:22,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:22,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:22,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:22,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:36:22,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:22,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:22,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:36:22,747 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 21:36:22,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810522668]
[2020-09-24 21:36:22,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:22,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:22,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404788149]
[2020-09-24 21:36:22,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:22,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:22,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:22,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:22,752 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand 3 states.
[2020-09-24 21:36:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:22,776 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions.
[2020-09-24 21:36:22,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:22,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44
[2020-09-24 21:36:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:22,779 INFO L225 Difference]: With dead ends: 116
[2020-09-24 21:36:22,779 INFO L226 Difference]: Without dead ends: 114
[2020-09-24 21:36:22,781 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 21:36:22,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2020-09-24 21:36:22,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94.
[2020-09-24 21:36:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states.
[2020-09-24 21:36:22,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions.
[2020-09-24 21:36:22,793 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 44
[2020-09-24 21:36:22,794 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:22,794 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions.
[2020-09-24 21:36:22,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions.
[2020-09-24 21:36:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-09-24 21:36:22,796 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:22,797 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]
[2020-09-24 21:36:22,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:36:22,797 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:22,798 INFO L82 PathProgramCache]: Analyzing trace with hash 755286414, now seen corresponding path program 1 times
[2020-09-24 21:36:22,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:22,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332655720]
[2020-09-24 21:36:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:22,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:22,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 21:36:22,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-09-24 21:36:22,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43
[2020-09-24 21:36:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:36:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:36:22,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:22,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:22,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:22,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:22,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:36:22,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:36:22,905 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 21:36:22,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332655720]
[2020-09-24 21:36:22,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:22,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:22,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932651261]
[2020-09-24 21:36:22,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:22,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:22,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:22,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:22,910 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand 3 states.
[2020-09-24 21:36:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:22,961 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions.
[2020-09-24 21:36:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:22,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44
[2020-09-24 21:36:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:22,964 INFO L225 Difference]: With dead ends: 226
[2020-09-24 21:36:22,965 INFO L226 Difference]: Without dead ends: 157
[2020-09-24 21:36:22,966 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 21:36:22,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2020-09-24 21:36:22,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155.
[2020-09-24 21:36:22,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states.
[2020-09-24 21:36:22,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions.
[2020-09-24 21:36:22,983 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 44
[2020-09-24 21:36:22,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:22,984 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions.
[2020-09-24 21:36:22,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:22,984 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions.
[2020-09-24 21:36:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-09-24 21:36:22,986 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:22,986 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]
[2020-09-24 21:36:22,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:36:22,987 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:22,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1863120818, now seen corresponding path program 1 times
[2020-09-24 21:36:22,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:22,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121162637]
[2020-09-24 21:36:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52
[2020-09-24 21:36:23,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71
[2020-09-24 21:36:23,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44
[2020-09-24 21:36:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:36:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:23,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:36:23,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:23,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,104 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 21:36:23,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121162637]
[2020-09-24 21:36:23,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:23,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:23,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133397403]
[2020-09-24 21:36:23,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:23,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:23,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:23,107 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand 3 states.
[2020-09-24 21:36:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:23,142 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions.
[2020-09-24 21:36:23,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:23,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45
[2020-09-24 21:36:23,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:23,145 INFO L225 Difference]: With dead ends: 191
[2020-09-24 21:36:23,145 INFO L226 Difference]: Without dead ends: 189
[2020-09-24 21:36:23,146 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 21:36:23,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states.
[2020-09-24 21:36:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155.
[2020-09-24 21:36:23,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states.
[2020-09-24 21:36:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 198 transitions.
[2020-09-24 21:36:23,173 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 198 transitions. Word has length 45
[2020-09-24 21:36:23,174 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:23,174 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 198 transitions.
[2020-09-24 21:36:23,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 198 transitions.
[2020-09-24 21:36:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-09-24 21:36:23,175 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:23,176 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]
[2020-09-24 21:36:23,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 21:36:23,176 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:23,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:23,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1939288392, now seen corresponding path program 1 times
[2020-09-24 21:36:23,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191184213]
[2020-09-24 21:36:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52
[2020-09-24 21:36:23,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 21:36:23,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44
[2020-09-24 21:36:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:36:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:23,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:36:23,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,316 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 21:36:23,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191184213]
[2020-09-24 21:36:23,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:23,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:23,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454347855]
[2020-09-24 21:36:23,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:23,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:23,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:23,320 INFO L87 Difference]: Start difference. First operand 155 states and 198 transitions. Second operand 3 states.
[2020-09-24 21:36:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:23,351 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions.
[2020-09-24 21:36:23,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:23,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45
[2020-09-24 21:36:23,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:23,355 INFO L225 Difference]: With dead ends: 403
[2020-09-24 21:36:23,356 INFO L226 Difference]: Without dead ends: 273
[2020-09-24 21:36:23,357 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 21:36:23,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states.
[2020-09-24 21:36:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271.
[2020-09-24 21:36:23,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states.
[2020-09-24 21:36:23,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 346 transitions.
[2020-09-24 21:36:23,404 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 346 transitions. Word has length 45
[2020-09-24 21:36:23,404 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:23,404 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 346 transitions.
[2020-09-24 21:36:23,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 346 transitions.
[2020-09-24 21:36:23,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-09-24 21:36:23,412 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:23,412 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]
[2020-09-24 21:36:23,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 21:36:23,413 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:23,414 INFO L82 PathProgramCache]: Analyzing trace with hash -11355582, now seen corresponding path program 1 times
[2020-09-24 21:36:23,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304012996]
[2020-09-24 21:36:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 21:36:23,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49
[2020-09-24 21:36:23,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:23,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45
[2020-09-24 21:36:23,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:36:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:36:23,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:23,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:36:23,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:23,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:23,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:23,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:36:23,518 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 21:36:23,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304012996]
[2020-09-24 21:36:23,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:23,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:23,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714980025]
[2020-09-24 21:36:23,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:23,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:23,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:23,520 INFO L87 Difference]: Start difference. First operand 271 states and 346 transitions. Second operand 3 states.
[2020-09-24 21:36:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:23,545 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions.
[2020-09-24 21:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:23,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46
[2020-09-24 21:36:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:23,548 INFO L225 Difference]: With dead ends: 739
[2020-09-24 21:36:23,549 INFO L226 Difference]: Without dead ends: 493
[2020-09-24 21:36:23,550 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 21:36:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states.
[2020-09-24 21:36:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491.
[2020-09-24 21:36:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states.
[2020-09-24 21:36:23,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 618 transitions.
[2020-09-24 21:36:23,572 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 618 transitions. Word has length 46
[2020-09-24 21:36:23,573 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:23,573 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 618 transitions.
[2020-09-24 21:36:23,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:23,573 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 618 transitions.
[2020-09-24 21:36:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-09-24 21:36:23,576 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:23,576 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]
[2020-09-24 21:36:23,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-24 21:36:23,576 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:23,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:23,577 INFO L82 PathProgramCache]: Analyzing trace with hash 338056749, now seen corresponding path program 1 times
[2020-09-24 21:36:23,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771597065]
[2020-09-24 21:36:23,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-09-24 21:36:23,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40
[2020-09-24 21:36:23,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45
[2020-09-24 21:36:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:36:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:23,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:36:23,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:23,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,659 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 21:36:23,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771597065]
[2020-09-24 21:36:23,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:23,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:23,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769237097]
[2020-09-24 21:36:23,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:23,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:23,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:23,663 INFO L87 Difference]: Start difference. First operand 491 states and 618 transitions. Second operand 3 states.
[2020-09-24 21:36:23,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:23,696 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions.
[2020-09-24 21:36:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:23,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46
[2020-09-24 21:36:23,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:23,700 INFO L225 Difference]: With dead ends: 599
[2020-09-24 21:36:23,701 INFO L226 Difference]: Without dead ends: 597
[2020-09-24 21:36:23,701 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 21:36:23,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states.
[2020-09-24 21:36:23,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 491.
[2020-09-24 21:36:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states.
[2020-09-24 21:36:23,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 610 transitions.
[2020-09-24 21:36:23,720 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 610 transitions. Word has length 46
[2020-09-24 21:36:23,720 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:23,720 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 610 transitions.
[2020-09-24 21:36:23,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:23,721 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 610 transitions.
[2020-09-24 21:36:23,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-09-24 21:36:23,723 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:23,723 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]
[2020-09-24 21:36:23,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-24 21:36:23,724 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:23,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:23,724 INFO L82 PathProgramCache]: Analyzing trace with hash -144915038, now seen corresponding path program 1 times
[2020-09-24 21:36:23,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802699890]
[2020-09-24 21:36:23,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54
[2020-09-24 21:36:23,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38
[2020-09-24 21:36:23,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46
[2020-09-24 21:36:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:36:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:23,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:36:23,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,799 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 21:36:23,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802699890]
[2020-09-24 21:36:23,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:23,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:23,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571023725]
[2020-09-24 21:36:23,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:23,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:23,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:23,801 INFO L87 Difference]: Start difference. First operand 491 states and 610 transitions. Second operand 3 states.
[2020-09-24 21:36:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:23,836 INFO L93 Difference]: Finished difference Result 591 states and 724 transitions.
[2020-09-24 21:36:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:23,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47
[2020-09-24 21:36:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:23,841 INFO L225 Difference]: With dead ends: 591
[2020-09-24 21:36:23,841 INFO L226 Difference]: Without dead ends: 589
[2020-09-24 21:36:23,842 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 21:36:23,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states.
[2020-09-24 21:36:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 491.
[2020-09-24 21:36:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states.
[2020-09-24 21:36:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 602 transitions.
[2020-09-24 21:36:23,866 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 602 transitions. Word has length 47
[2020-09-24 21:36:23,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:23,867 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 602 transitions.
[2020-09-24 21:36:23,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:23,867 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 602 transitions.
[2020-09-24 21:36:23,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-09-24 21:36:23,871 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:23,871 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]
[2020-09-24 21:36:23,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-24 21:36:23,872 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:23,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:23,872 INFO L82 PathProgramCache]: Analyzing trace with hash -351776260, now seen corresponding path program 1 times
[2020-09-24 21:36:23,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090140493]
[2020-09-24 21:36:23,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54
[2020-09-24 21:36:23,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-24 21:36:23,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46
[2020-09-24 21:36:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:36:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 21:36:23,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:23,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:23,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:23,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:23,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:23,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 21:36:23,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:23,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:23,980 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 21:36:23,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090140493]
[2020-09-24 21:36:23,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:23,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:23,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10360088]
[2020-09-24 21:36:23,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:23,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:23,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:23,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:23,989 INFO L87 Difference]: Start difference. First operand 491 states and 602 transitions. Second operand 3 states.
[2020-09-24 21:36:24,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:24,022 INFO L93 Difference]: Finished difference Result 1373 states and 1691 transitions.
[2020-09-24 21:36:24,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:24,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47
[2020-09-24 21:36:24,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:24,026 INFO L225 Difference]: With dead ends: 1373
[2020-09-24 21:36:24,026 INFO L226 Difference]: Without dead ends: 491
[2020-09-24 21:36:24,028 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 21:36:24,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states.
[2020-09-24 21:36:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491.
[2020-09-24 21:36:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states.
[2020-09-24 21:36:24,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 570 transitions.
[2020-09-24 21:36:24,045 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 570 transitions. Word has length 47
[2020-09-24 21:36:24,046 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:24,046 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 570 transitions.
[2020-09-24 21:36:24,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:24,046 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 570 transitions.
[2020-09-24 21:36:24,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-09-24 21:36:24,047 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 21:36:24,047 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]
[2020-09-24 21:36:24,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-24 21:36:24,048 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:36:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:36:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2062829121, now seen corresponding path program 1 times
[2020-09-24 21:36:24,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:36:24,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843424156]
[2020-09-24 21:36:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:36:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:24,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:24,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:24,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55
[2020-09-24 21:36:24,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:24,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61
[2020-09-24 21:36:24,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:24,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:36:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47
[2020-09-24 21:36:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:36:24,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:24,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:36:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:36:24,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:36:24,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:36:24,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:36:24,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:36:24,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 21:36:24,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:36:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:36:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:36:24,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:36:24,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:36:24,147 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 21:36:24,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843424156]
[2020-09-24 21:36:24,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:36:24,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 21:36:24,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829708149]
[2020-09-24 21:36:24,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 21:36:24,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:36:24,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 21:36:24,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 21:36:24,149 INFO L87 Difference]: Start difference. First operand 491 states and 570 transitions. Second operand 3 states.
[2020-09-24 21:36:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:36:24,161 INFO L93 Difference]: Finished difference Result 491 states and 570 transitions.
[2020-09-24 21:36:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 21:36:24,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48
[2020-09-24 21:36:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:36:24,162 INFO L225 Difference]: With dead ends: 491
[2020-09-24 21:36:24,162 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 21:36:24,163 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 21:36:24,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 21:36:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 21:36:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 21:36:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 21:36:24,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48
[2020-09-24 21:36:24,164 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:36:24,165 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 21:36:24,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 21:36:24,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 21:36:24,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 21:36:24,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-09-24 21:36:24,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 21:36:24,193 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-24 21:36:24,194 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 21:36:24,194 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 21:36:24,194 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-24 21:36:24,194 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 21:36:24,194 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 21:36:24,194 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 93) no Hoare annotation was computed.
[2020-09-24 21:36:24,195 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed.
[2020-09-24 21:36:24,195 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed.
[2020-09-24 21:36:24,195 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed.
[2020-09-24 21:36:24,195 INFO L268 CegarLoopResult]: For program point L53-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,195 INFO L268 CegarLoopResult]: For program point L78-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,195 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed.
[2020-09-24 21:36:24,195 INFO L268 CegarLoopResult]: For program point L45-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,196 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed.
[2020-09-24 21:36:24,196 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed.
[2020-09-24 21:36:24,196 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed.
[2020-09-24 21:36:24,196 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed.
[2020-09-24 21:36:24,196 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed.
[2020-09-24 21:36:24,196 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed.
[2020-09-24 21:36:24,196 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed.
[2020-09-24 21:36:24,197 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed.
[2020-09-24 21:36:24,197 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed.
[2020-09-24 21:36:24,197 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 93) no Hoare annotation was computed.
[2020-09-24 21:36:24,197 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed.
[2020-09-24 21:36:24,197 INFO L268 CegarLoopResult]: For program point L63-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,197 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true
[2020-09-24 21:36:24,198 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-24 21:36:24,198 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed.
[2020-09-24 21:36:24,198 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed.
[2020-09-24 21:36:24,198 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed.
[2020-09-24 21:36:24,198 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed.
[2020-09-24 21:36:24,198 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed.
[2020-09-24 21:36:24,199 INFO L271 CegarLoopResult]: At program point L89(lines 5 93) the Hoare annotation is: true
[2020-09-24 21:36:24,199 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-24 21:36:24,199 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-24 21:36:24,199 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed.
[2020-09-24 21:36:24,199 INFO L268 CegarLoopResult]: For program point L73-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,199 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed.
[2020-09-24 21:36:24,199 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed.
[2020-09-24 21:36:24,200 INFO L268 CegarLoopResult]: For program point L57-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,200 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed.
[2020-09-24 21:36:24,200 INFO L268 CegarLoopResult]: For program point L49-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,200 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed.
[2020-09-24 21:36:24,200 INFO L268 CegarLoopResult]: For program point L41(lines 41 43) no Hoare annotation was computed.
[2020-09-24 21:36:24,200 INFO L268 CegarLoopResult]: For program point L41-2(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,200 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed.
[2020-09-24 21:36:24,201 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed.
[2020-09-24 21:36:24,201 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-09-24 21:36:24,201 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed.
[2020-09-24 21:36:24,201 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed.
[2020-09-24 21:36:24,201 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed.
[2020-09-24 21:36:24,201 INFO L271 CegarLoopResult]: At program point L83-1(lines 24 88) the Hoare annotation is: true
[2020-09-24 21:36:24,201 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed.
[2020-09-24 21:36:24,202 INFO L264 CegarLoopResult]: At program point L84-1(lines 5 93) the Hoare annotation is: false
[2020-09-24 21:36:24,203 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed.
[2020-09-24 21:36:24,203 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed.
[2020-09-24 21:36:24,203 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed.
[2020-09-24 21:36:24,203 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed.
[2020-09-24 21:36:24,203 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed.
[2020-09-24 21:36:24,203 INFO L268 CegarLoopResult]: For program point L68-1(lines 24 88) no Hoare annotation was computed.
[2020-09-24 21:36:24,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:36:24 BoogieIcfgContainer
[2020-09-24 21:36:24,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:36:24,222 INFO L168 Benchmark]: Toolchain (without parser) took 3372.04 ms. Allocated memory was 140.0 MB in the beginning and 245.4 MB in the end (delta: 105.4 MB). Free memory was 101.6 MB in the beginning and 198.8 MB in the end (delta: -97.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:36:24,222 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 21:36:24,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.10 ms. Allocated memory is still 140.0 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:36:24,224 INFO L168 Benchmark]: Boogie Preprocessor took 123.47 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.0 MB in the beginning and 181.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
[2020-09-24 21:36:24,225 INFO L168 Benchmark]: RCFGBuilder took 459.18 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 163.6 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB.
[2020-09-24 21:36:24,226 INFO L168 Benchmark]: TraceAbstraction took 2439.76 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 163.6 MB in the beginning and 198.8 MB in the end (delta: -35.2 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:36:24,229 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 338.10 ms. Allocated memory is still 140.0 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 123.47 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.0 MB in the beginning and 181.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 459.18 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 163.6 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2439.76 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 163.6 MB in the beginning and 198.8 MB in the end (delta: -35.2 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 91]: 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: 24]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 956 SDtfs, 332 SDslu, 668 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 266 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 41 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, 1.1s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 445 ConstructedInterpolants, 0 QuantifiedInterpolants, 24725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...