/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label22.c
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This is Ultimate 0.1.25-d623d84
[2020-07-20 17:27:13,957 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-20 17:27:13,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 17:27:13,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 17:27:13,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 17:27:13,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 17:27:13,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 17:27:13,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 17:27:14,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 17:27:14,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 17:27:14,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 17:27:14,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 17:27:14,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 17:27:14,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 17:27:14,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 17:27:14,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 17:27:14,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 17:27:14,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 17:27:14,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 17:27:14,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 17:27:14,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 17:27:14,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 17:27:14,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 17:27:14,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 17:27:14,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 17:27:14,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 17:27:14,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 17:27:14,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 17:27:14,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 17:27:14,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 17:27:14,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 17:27:14,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 17:27:14,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-07-20 17:27:14,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 17:27:14,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 17:27:14,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 17:27:14,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 17:27:14,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 17:27:14,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 17:27:14,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 17:27:14,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-20 17:27:14,053 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-20 17:27:14,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 17:27:14,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 17:27:14,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-20 17:27:14,055 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-20 17:27:14,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 17:27:14,055 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-20 17:27:14,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-20 17:27:14,056 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-20 17:27:14,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-20 17:27:14,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 17:27:14,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 17:27:14,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 17:27:14,057 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-20 17:27:14,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-20 17:27:14,057 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-20 17:27:14,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-20 17:27:14,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 17:27:14,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-20 17:27:14,058 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-20 17:27:14,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-20 17:27:14,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 17:27:14,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 17:27:14,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 17:27:14,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 17:27:14,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-20 17:27:14,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:14,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 17:27:14,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-20 17:27:14,060 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 -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-20 17:27:14,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 17:27:14,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 17:27:14,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 17:27:14,388 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-20 17:27:14,389 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-20 17:27:14,391 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label22.c
[2020-07-20 17:27:14,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a423a30/aa967be5d020425aba2608c03efb8e37/FLAGd39359784
[2020-07-20 17:27:15,022 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-20 17:27:15,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label22.c
[2020-07-20 17:27:15,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a423a30/aa967be5d020425aba2608c03efb8e37/FLAGd39359784
[2020-07-20 17:27:15,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a423a30/aa967be5d020425aba2608c03efb8e37
[2020-07-20 17:27:15,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 17:27:15,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 17:27:15,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 17:27:15,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 17:27:15,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 17:27:15,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:15" (1/1) ...
[2020-07-20 17:27:15,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79435af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:15, skipping insertion in model container
[2020-07-20 17:27:15,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:15" (1/1) ...
[2020-07-20 17:27:15,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-20 17:27:15,380 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-20 17:27:15,827 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 17:27:15,833 INFO L203 MainTranslator]: Completed pre-run
[2020-07-20 17:27:16,064 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 17:27:16,087 INFO L208 MainTranslator]: Completed translation
[2020-07-20 17:27:16,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16 WrapperNode
[2020-07-20 17:27:16,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 17:27:16,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 17:27:16,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 17:27:16,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 17:27:16,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
[2020-07-20 17:27:16,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
[2020-07-20 17:27:16,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
[2020-07-20 17:27:16,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
[2020-07-20 17:27:16,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
[2020-07-20 17:27:16,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
[2020-07-20 17:27:16,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
[2020-07-20 17:27:16,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 17:27:16,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 17:27:16,193 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 17:27:16,194 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-20 17:27:16,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (1/1) ...
No working directory specified, using /storage/repos/ultimate/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
[2020-07-20 17:27:16,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 17:27:16,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 17:27:16,277 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-07-20 17:27:16,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 17:27:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output
[2020-07-20 17:27:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 17:27:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 17:27:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-07-20 17:27:16,279 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-20 17:27:16,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 17:27:16,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 17:27:17,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 17:27:17,471 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-20 17:27:17,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:17 BoogieIcfgContainer
[2020-07-20 17:27:17,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 17:27:17,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 17:27:17,487 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 17:27:17,490 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-20 17:27:17,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:27:15" (1/3) ...
[2020-07-20 17:27:17,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5715e877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:17, skipping insertion in model container
[2020-07-20 17:27:17,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:16" (2/3) ...
[2020-07-20 17:27:17,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5715e877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:17, skipping insertion in model container
[2020-07-20 17:27:17,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:17" (3/3) ...
[2020-07-20 17:27:17,497 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label22.c
[2020-07-20 17:27:17,510 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 17:27:17,522 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 17:27:17,538 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 17:27:17,570 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-20 17:27:17,570 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-20 17:27:17,570 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 17:27:17,571 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 17:27:17,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 17:27:17,571 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-20 17:27:17,571 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 17:27:17,572 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 17:27:17,599 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states.
[2020-07-20 17:27:17,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2020-07-20 17:27:17,622 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:27:17,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:27:17,624 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:27:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:27:17,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1125290487, now seen corresponding path program 1 times
[2020-07-20 17:27:17,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:27:17,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447314355]
[2020-07-20 17:27:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:17,831 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:27:17,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:27:17,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 17:27:17,844 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:27:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:17,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:27:17,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447314355]
[2020-07-20 17:27:17,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:27:17,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 17:27:17,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500806176]
[2020-07-20 17:27:17,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 17:27:17,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:27:17,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 17:27:17,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:17,961 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states.
[2020-07-20 17:27:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:27:18,980 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions.
[2020-07-20 17:27:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 17:27:18,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103
[2020-07-20 17:27:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:27:19,007 INFO L225 Difference]: With dead ends: 615
[2020-07-20 17:27:19,010 INFO L226 Difference]: Without dead ends: 317
[2020-07-20 17:27:19,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states.
[2020-07-20 17:27:19,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317.
[2020-07-20 17:27:19,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states.
[2020-07-20 17:27:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions.
[2020-07-20 17:27:19,122 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 103
[2020-07-20 17:27:19,123 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:27:19,123 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions.
[2020-07-20 17:27:19,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 17:27:19,123 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions.
[2020-07-20 17:27:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2020-07-20 17:27:19,129 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:27:19,129 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:27:19,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:19,343 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:27:19,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:27:19,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1652959172, now seen corresponding path program 1 times
[2020-07-20 17:27:19,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:27:19,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287701817]
[2020-07-20 17:27:19,346 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:19,446 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:27:19,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:27:19,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 17:27:19,453 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:27:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:19,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:27:19,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287701817]
[2020-07-20 17:27:19,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:27:19,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 17:27:19,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420319906]
[2020-07-20 17:27:19,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 17:27:19,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:27:19,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 17:27:19,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:19,519 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states.
[2020-07-20 17:27:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:27:20,119 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions.
[2020-07-20 17:27:20,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 17:27:20,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118
[2020-07-20 17:27:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:27:20,136 INFO L225 Difference]: With dead ends: 919
[2020-07-20 17:27:20,137 INFO L226 Difference]: Without dead ends: 608
[2020-07-20 17:27:20,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:20,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states.
[2020-07-20 17:27:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462.
[2020-07-20 17:27:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states.
[2020-07-20 17:27:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions.
[2020-07-20 17:27:20,198 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 118
[2020-07-20 17:27:20,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:27:20,199 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions.
[2020-07-20 17:27:20,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 17:27:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions.
[2020-07-20 17:27:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2020-07-20 17:27:20,204 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:27:20,205 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:27:20,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:20,418 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:27:20,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:27:20,419 INFO L82 PathProgramCache]: Analyzing trace with hash 553113585, now seen corresponding path program 1 times
[2020-07-20 17:27:20,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:27:20,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769993072]
[2020-07-20 17:27:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:20,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:27:20,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:27:20,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 17:27:20,520 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:27:20,577 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:20,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:27:20,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769993072]
[2020-07-20 17:27:20,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:27:20,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 17:27:20,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487459107]
[2020-07-20 17:27:20,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 17:27:20,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:27:20,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 17:27:20,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:20,580 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states.
[2020-07-20 17:27:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:27:21,202 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions.
[2020-07-20 17:27:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 17:27:21,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125
[2020-07-20 17:27:21,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:27:21,214 INFO L225 Difference]: With dead ends: 1209
[2020-07-20 17:27:21,215 INFO L226 Difference]: Without dead ends: 753
[2020-07-20 17:27:21,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states.
[2020-07-20 17:27:21,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609.
[2020-07-20 17:27:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states.
[2020-07-20 17:27:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions.
[2020-07-20 17:27:21,257 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 125
[2020-07-20 17:27:21,258 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:27:21,259 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions.
[2020-07-20 17:27:21,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 17:27:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions.
[2020-07-20 17:27:21,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2020-07-20 17:27:21,268 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:27:21,268 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:27:21,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:21,470 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:27:21,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:27:21,471 INFO L82 PathProgramCache]: Analyzing trace with hash 299140729, now seen corresponding path program 1 times
[2020-07-20 17:27:21,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:27:21,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941853749]
[2020-07-20 17:27:21,473 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:21,587 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:27:21,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:27:21,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 17:27:21,597 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:27:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:21,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:27:21,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941853749]
[2020-07-20 17:27:21,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:27:21,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 17:27:21,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634887370]
[2020-07-20 17:27:21,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 17:27:21,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:27:21,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 17:27:21,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:21,668 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 3 states.
[2020-07-20 17:27:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:27:22,346 INFO L93 Difference]: Finished difference Result 1505 states and 2105 transitions.
[2020-07-20 17:27:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 17:27:22,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129
[2020-07-20 17:27:22,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:27:22,358 INFO L225 Difference]: With dead ends: 1505
[2020-07-20 17:27:22,359 INFO L226 Difference]: Without dead ends: 902
[2020-07-20 17:27:22,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:22,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states.
[2020-07-20 17:27:22,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 756.
[2020-07-20 17:27:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states.
[2020-07-20 17:27:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 988 transitions.
[2020-07-20 17:27:22,388 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 988 transitions. Word has length 129
[2020-07-20 17:27:22,389 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:27:22,389 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 988 transitions.
[2020-07-20 17:27:22,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 17:27:22,389 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 988 transitions.
[2020-07-20 17:27:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-07-20 17:27:22,392 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:27:22,393 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:27:22,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:22,607 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:27:22,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:27:22,607 INFO L82 PathProgramCache]: Analyzing trace with hash 434774726, now seen corresponding path program 1 times
[2020-07-20 17:27:22,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:27:22,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054134340]
[2020-07-20 17:27:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:22,781 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:27:22,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:27:22,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 17:27:22,796 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:27:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:22,854 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 17:27:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:23,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054134340]
[2020-07-20 17:27:23,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 17:27:23,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2020-07-20 17:27:23,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887772971]
[2020-07-20 17:27:23,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 17:27:23,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:27:23,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 17:27:23,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 17:27:23,023 INFO L87 Difference]: Start difference. First operand 756 states and 988 transitions. Second operand 7 states.
[2020-07-20 17:27:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:27:24,080 INFO L93 Difference]: Finished difference Result 1824 states and 2492 transitions.
[2020-07-20 17:27:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-07-20 17:27:24,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154
[2020-07-20 17:27:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:27:24,089 INFO L225 Difference]: With dead ends: 1824
[2020-07-20 17:27:24,090 INFO L226 Difference]: Without dead ends: 1074
[2020-07-20 17:27:24,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2020-07-20 17:27:24,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states.
[2020-07-20 17:27:24,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1064.
[2020-07-20 17:27:24,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states.
[2020-07-20 17:27:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1394 transitions.
[2020-07-20 17:27:24,150 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1394 transitions. Word has length 154
[2020-07-20 17:27:24,150 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:27:24,151 INFO L479 AbstractCegarLoop]: Abstraction has 1064 states and 1394 transitions.
[2020-07-20 17:27:24,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 17:27:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1394 transitions.
[2020-07-20 17:27:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-07-20 17:27:24,162 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:27:24,162 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:27:24,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:24,377 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:27:24,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:27:24,379 INFO L82 PathProgramCache]: Analyzing trace with hash -144950901, now seen corresponding path program 1 times
[2020-07-20 17:27:24,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:27:24,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881348954]
[2020-07-20 17:27:24,380 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:24,550 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:27:24,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:27:24,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 17:27:24,557 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:27:24,595 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked.
[2020-07-20 17:27:24,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 17:27:24,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881348954]
[2020-07-20 17:27:24,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 17:27:24,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 17:27:24,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805145800]
[2020-07-20 17:27:24,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 17:27:24,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:27:24,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 17:27:24,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:24,599 INFO L87 Difference]: Start difference. First operand 1064 states and 1394 transitions. Second operand 3 states.
[2020-07-20 17:27:25,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:27:25,211 INFO L93 Difference]: Finished difference Result 2123 states and 2794 transitions.
[2020-07-20 17:27:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 17:27:25,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162
[2020-07-20 17:27:25,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:27:25,220 INFO L225 Difference]: With dead ends: 2123
[2020-07-20 17:27:25,220 INFO L226 Difference]: Without dead ends: 1065
[2020-07-20 17:27:25,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 17:27:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states.
[2020-07-20 17:27:25,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 916.
[2020-07-20 17:27:25,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states.
[2020-07-20 17:27:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1125 transitions.
[2020-07-20 17:27:25,251 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1125 transitions. Word has length 162
[2020-07-20 17:27:25,252 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:27:25,252 INFO L479 AbstractCegarLoop]: Abstraction has 916 states and 1125 transitions.
[2020-07-20 17:27:25,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 17:27:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1125 transitions.
[2020-07-20 17:27:25,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2020-07-20 17:27:25,256 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 17:27:25,257 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 17:27:25,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:25,471 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 17:27:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 17:27:25,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1780199134, now seen corresponding path program 1 times
[2020-07-20 17:27:25,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 17:27:25,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208306182]
[2020-07-20 17:27:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:25,580 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-20 17:27:25,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-20 17:27:25,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 17:27:25,585 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 17:27:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:25,659 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 17:27:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 17:27:25,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208306182]
[2020-07-20 17:27:25,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 17:27:25,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2020-07-20 17:27:25,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767585166]
[2020-07-20 17:27:25,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-20 17:27:25,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 17:27:25,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-20 17:27:25,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-07-20 17:27:25,746 INFO L87 Difference]: Start difference. First operand 916 states and 1125 transitions. Second operand 6 states.
[2020-07-20 17:27:26,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 17:27:26,282 INFO L93 Difference]: Finished difference Result 1690 states and 2128 transitions.
[2020-07-20 17:27:26,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-07-20 17:27:26,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166
[2020-07-20 17:27:26,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 17:27:26,284 INFO L225 Difference]: With dead ends: 1690
[2020-07-20 17:27:26,284 INFO L226 Difference]: Without dead ends: 0
[2020-07-20 17:27:26,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 17:27:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 17:27:26,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 17:27:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 17:27:26,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 17:27:26,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166
[2020-07-20 17:27:26,291 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 17:27:26,291 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 17:27:26,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-20 17:27:26,292 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 17:27:26,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 17:27:26,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:27:26,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 17:27:26,893 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40
[2020-07-20 17:27:27,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 17:27:27,005 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|))
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,006 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed.
[2020-07-20 17:27:27,007 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed.
[2020-07-20 17:27:27,007 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed.
[2020-07-20 17:27:27,007 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed.
[2020-07-20 17:27:27,007 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed.
[2020-07-20 17:27:27,007 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,007 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,007 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,008 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed.
[2020-07-20 17:27:27,008 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed.
[2020-07-20 17:27:27,008 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,008 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,008 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,008 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,008 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,009 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,009 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,009 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,009 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed.
[2020-07-20 17:27:27,009 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed.
[2020-07-20 17:27:27,009 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed.
[2020-07-20 17:27:27,009 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed.
[2020-07-20 17:27:27,010 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed.
[2020-07-20 17:27:27,010 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,010 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed.
[2020-07-20 17:27:27,010 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed.
[2020-07-20 17:27:27,010 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,010 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,010 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,011 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed.
[2020-07-20 17:27:27,011 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed.
[2020-07-20 17:27:27,011 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,011 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,011 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,011 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,011 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,012 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,012 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed.
[2020-07-20 17:27:27,012 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed.
[2020-07-20 17:27:27,012 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,012 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed.
[2020-07-20 17:27:27,012 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed.
[2020-07-20 17:27:27,012 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed.
[2020-07-20 17:27:27,013 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed.
[2020-07-20 17:27:27,013 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed.
[2020-07-20 17:27:27,013 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed.
[2020-07-20 17:27:27,013 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,013 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,013 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,013 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,014 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,014 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,014 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,014 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,014 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,014 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,014 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,015 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed.
[2020-07-20 17:27:27,015 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed.
[2020-07-20 17:27:27,015 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed.
[2020-07-20 17:27:27,015 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed.
[2020-07-20 17:27:27,015 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed.
[2020-07-20 17:27:27,015 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,015 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,016 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,017 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,017 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed.
[2020-07-20 17:27:27,017 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed.
[2020-07-20 17:27:27,017 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed.
[2020-07-20 17:27:27,017 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed.
[2020-07-20 17:27:27,017 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed.
[2020-07-20 17:27:27,017 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed.
[2020-07-20 17:27:27,018 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,019 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed.
[2020-07-20 17:27:27,019 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,019 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,019 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,019 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,019 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed.
[2020-07-20 17:27:27,019 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,020 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed.
[2020-07-20 17:27:27,021 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed.
[2020-07-20 17:27:27,021 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed.
[2020-07-20 17:27:27,021 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed.
[2020-07-20 17:27:27,021 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed.
[2020-07-20 17:27:27,021 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed.
[2020-07-20 17:27:27,021 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,021 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,022 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,023 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,023 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,023 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed.
[2020-07-20 17:27:27,023 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed.
[2020-07-20 17:27:27,023 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed.
[2020-07-20 17:27:27,023 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed.
[2020-07-20 17:27:27,023 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed.
[2020-07-20 17:27:27,024 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed.
[2020-07-20 17:27:27,024 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,024 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,024 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,024 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,024 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,024 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,025 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,026 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,027 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,027 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,027 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,027 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,027 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,027 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a28~0 |old(~a28~0)|)) (.cse0 (not (<= |old(~a17~0)| 8)))) (and (or (and (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 8)) (not (<= |old(~a28~0)| 8)) (not (<= 8 |old(~a17~0)|)) .cse0) (or (not (<= 9 |old(~a28~0)|)) (and .cse1 .cse2 (<= 9 ~a28~0)) .cse0) (or (not (<= 10 |old(~a28~0)|)) (<= 10 ~a28~0) .cse0) (or (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2) .cse0) (or (not (<= 11 |old(~a28~0)|)) .cse0 (<= 11 ~a28~0))))
[2020-07-20 17:27:27,027 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed.
[2020-07-20 17:27:27,028 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,029 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,030 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed.
[2020-07-20 17:27:27,031 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed.
[2020-07-20 17:27:27,031 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed.
[2020-07-20 17:27:27,031 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed.
[2020-07-20 17:27:27,031 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed.
[2020-07-20 17:27:27,031 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed.
[2020-07-20 17:27:27,031 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,031 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,032 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,033 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,033 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,033 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed.
[2020-07-20 17:27:27,033 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,033 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,033 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,033 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,034 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed.
[2020-07-20 17:27:27,035 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 17:27:27,036 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7))
[2020-07-20 17:27:27,036 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-07-20 17:27:27,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 17:27:27,036 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)))
[2020-07-20 17:27:27,036 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (<= 9 ~a28~0)) (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a28~0 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0))))
[2020-07-20 17:27:27,036 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed.
[2020-07-20 17:27:27,036 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed.
[2020-07-20 17:27:27,037 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (<= 9 ~a28~0)) (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a28~0 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and .cse0 (<= 8 ~a17~0))))
[2020-07-20 17:27:27,037 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed.
[2020-07-20 17:27:27,037 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed.
[2020-07-20 17:27:27,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:27:27 BoogieIcfgContainer
[2020-07-20 17:27:27,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 17:27:27,058 INFO L168 Benchmark]: Toolchain (without parser) took 11758.79 ms. Allocated memory was 137.4 MB in the beginning and 373.8 MB in the end (delta: 236.5 MB). Free memory was 100.9 MB in the beginning and 140.9 MB in the end (delta: -40.0 MB). Peak memory consumption was 196.5 MB. Max. memory is 7.1 GB.
[2020-07-20 17:27:27,059 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-20 17:27:27,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.76 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 100.5 MB in the beginning and 170.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB.
[2020-07-20 17:27:27,060 INFO L168 Benchmark]: Boogie Preprocessor took 104.36 ms. Allocated memory is still 203.4 MB. Free memory was 170.6 MB in the beginning and 165.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB.
[2020-07-20 17:27:27,061 INFO L168 Benchmark]: RCFGBuilder took 1290.50 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 180.7 MB in the end (delta: -15.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB.
[2020-07-20 17:27:27,062 INFO L168 Benchmark]: TraceAbstraction took 9569.49 ms. Allocated memory was 234.9 MB in the beginning and 373.8 MB in the end (delta: 138.9 MB). Free memory was 180.7 MB in the beginning and 140.9 MB in the end (delta: 39.8 MB). Peak memory consumption was 178.7 MB. Max. memory is 7.1 GB.
[2020-07-20 17:27:27,066 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.61 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 786.76 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 100.5 MB in the beginning and 170.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 104.36 ms. Allocated memory is still 203.4 MB. Free memory was 170.6 MB in the beginning and 165.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1290.50 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 180.7 MB in the end (delta: -15.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 9569.49 ms. Allocated memory was 234.9 MB in the beginning and 373.8 MB in the end (delta: 138.9 MB). Free memory was 180.7 MB in the beginning and 140.9 MB in the end (delta: 39.8 MB). Peak memory consumption was 178.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 463]: 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: 606]: Loop Invariant
Derived loop invariant: (((((a17 <= 8 && 9 <= a28) || !(\old(a28) <= 7)) || (a17 <= 8 && a28 <= 7)) || !(8 <= \old(a17))) || !(\old(a17) <= 8)) || (a17 <= 8 && 8 <= a17)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1044 SDtfs, 1262 SDslu, 222 SDs, 0 SdLazy, 3077 SolverSat, 653 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1275 GetRequests, 1255 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred in iteration=5, 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, 7 MinimizatonAttempts, 595 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 44 PreInvPairs, 64 NumberOfFragments, 192 HoareAnnotationTreeSize, 44 FomulaSimplifications, 430 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 957 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1268 ConstructedInterpolants, 0 QuantifiedInterpolants, 398610 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2527 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 401/409 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...