/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53.c
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This is Ultimate 0.1.25-d623d84
[2020-07-20 11:39:45,912 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-20 11:39:45,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 11:39:45,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 11:39:45,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 11:39:45,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 11:39:45,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 11:39:45,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 11:39:45,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 11:39:45,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 11:39:45,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 11:39:45,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 11:39:45,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 11:39:45,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 11:39:45,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 11:39:45,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 11:39:45,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 11:39:45,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 11:39:45,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 11:39:45,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 11:39:45,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 11:39:45,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 11:39:45,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 11:39:45,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 11:39:45,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-07-20 11:39:45,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-07-20 11:39:45,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 11:39:45,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-07-20 11:39:45,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-07-20 11:39:45,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-07-20 11:39:45,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-20 11:39:45,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 11:39:45,960 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 11:39:45,973 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-20 11:39:45,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 11:39:45,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 11:39:45,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-20 11:39:45,975 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-20 11:39:45,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 11:39:45,976 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-20 11:39:45,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-20 11:39:45,976 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-20 11:39:45,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-20 11:39:45,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 11:39:45,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 11:39:45,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 11:39:45,977 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-20 11:39:45,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-20 11:39:45,977 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-20 11:39:45,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-20 11:39:45,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 11:39:45,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-20 11:39:45,978 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-20 11:39:45,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-20 11:39:45,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 11:39:45,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 11:39:45,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 11:39:45,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 11:39:45,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-20 11:39:45,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:45,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 11:39:45,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-20 11:39:45,980 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 -> NOT_INCREMENTALLY
[2020-07-20 11:39:46,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 11:39:46,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 11:39:46,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 11:39:46,266 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-20 11:39:46,266 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-20 11:39:46,267 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53.c
[2020-07-20 11:39:46,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/866bd2793/b2cc608632df4a06b82a7a2d034a4e6c/FLAG219af8383
[2020-07-20 11:39:46,938 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-20 11:39:46,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label53.c
[2020-07-20 11:39:46,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/866bd2793/b2cc608632df4a06b82a7a2d034a4e6c/FLAG219af8383
[2020-07-20 11:39:47,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/866bd2793/b2cc608632df4a06b82a7a2d034a4e6c
[2020-07-20 11:39:47,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 11:39:47,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 11:39:47,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 11:39:47,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 11:39:47,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 11:39:47,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:47,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c01a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47, skipping insertion in model container
[2020-07-20 11:39:47,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:47,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-20 11:39:47,267 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-20 11:39:47,778 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:39:47,786 INFO L203 MainTranslator]: Completed pre-run
[2020-07-20 11:39:47,925 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:39:47,940 INFO L208 MainTranslator]: Completed translation
[2020-07-20 11:39:47,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47 WrapperNode
[2020-07-20 11:39:47,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 11:39:47,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 11:39:47,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 11:39:47,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 11:39:47,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:47,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:47,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:47,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:48,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:48,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:48,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (1/1) ...
[2020-07-20 11:39:48,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 11:39:48,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 11:39:48,058 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 11:39:48,058 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-20 11:39:48,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (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 11:39:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 11:39:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 11:39:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-07-20 11:39:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 11:39:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output
[2020-07-20 11:39:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 11:39:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 11:39:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-07-20 11:39:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-20 11:39:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 11:39:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 11:39:49,404 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 11:39:49,405 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-20 11:39:49,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:39:49 BoogieIcfgContainer
[2020-07-20 11:39:49,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 11:39:49,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 11:39:49,420 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 11:39:49,424 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-20 11:39:49,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:39:47" (1/3) ...
[2020-07-20 11:39:49,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134649e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:39:49, skipping insertion in model container
[2020-07-20 11:39:49,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:47" (2/3) ...
[2020-07-20 11:39:49,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134649e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:39:49, skipping insertion in model container
[2020-07-20 11:39:49,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:39:49" (3/3) ...
[2020-07-20 11:39:49,437 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label53.c
[2020-07-20 11:39:49,451 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 11:39:49,465 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 11:39:49,483 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 11:39:49,517 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-20 11:39:49,518 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-20 11:39:49,518 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 11:39:49,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 11:39:49,519 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 11:39:49,519 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-20 11:39:49,519 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 11:39:49,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 11:39:49,542 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states.
[2020-07-20 11:39:49,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-07-20 11:39:49,551 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:49,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:39:49,553 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:49,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:49,559 INFO L82 PathProgramCache]: Analyzing trace with hash 253834415, now seen corresponding path program 1 times
[2020-07-20 11:39:49,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:49,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744229411]
[2020-07-20 11:39:49,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:39:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:49,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:39:49,716 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:49,787 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 11:39:49,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:49,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744229411]
[2020-07-20 11:39:49,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:49,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:39:49,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144031915]
[2020-07-20 11:39:49,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:39:49,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:49,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:39:49,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:39:49,814 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states.
[2020-07-20 11:39:50,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:50,892 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions.
[2020-07-20 11:39:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:39:50,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48
[2020-07-20 11:39:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:50,911 INFO L225 Difference]: With dead ends: 586
[2020-07-20 11:39:50,911 INFO L226 Difference]: Without dead ends: 294
[2020-07-20 11:39:50,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 11:39:50,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2020-07-20 11:39:50,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294.
[2020-07-20 11:39:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states.
[2020-07-20 11:39:50,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions.
[2020-07-20 11:39:50,988 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 48
[2020-07-20 11:39:50,989 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:50,989 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions.
[2020-07-20 11:39:50,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:39:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions.
[2020-07-20 11:39:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2020-07-20 11:39:50,995 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:50,996 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, 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]
[2020-07-20 11:39:51,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:51,210 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:51,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:51,211 INFO L82 PathProgramCache]: Analyzing trace with hash -384487862, now seen corresponding path program 1 times
[2020-07-20 11:39:51,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:51,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136462072]
[2020-07-20 11:39:51,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:39:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:51,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:39:51,291 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:39:51,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:51,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136462072]
[2020-07-20 11:39:51,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:51,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 11:39:51,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186726452]
[2020-07-20 11:39:51,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 11:39:51,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:51,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 11:39:51,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 11:39:51,349 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 5 states.
[2020-07-20 11:39:52,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:52,344 INFO L93 Difference]: Finished difference Result 890 states and 1316 transitions.
[2020-07-20 11:39:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-07-20 11:39:52,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122
[2020-07-20 11:39:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:52,352 INFO L225 Difference]: With dead ends: 890
[2020-07-20 11:39:52,353 INFO L226 Difference]: Without dead ends: 602
[2020-07-20 11:39:52,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-07-20 11:39:52,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states.
[2020-07-20 11:39:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590.
[2020-07-20 11:39:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states.
[2020-07-20 11:39:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 775 transitions.
[2020-07-20 11:39:52,399 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 775 transitions. Word has length 122
[2020-07-20 11:39:52,400 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:52,400 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 775 transitions.
[2020-07-20 11:39:52,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 11:39:52,401 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 775 transitions.
[2020-07-20 11:39:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2020-07-20 11:39:52,404 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:52,405 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, 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]
[2020-07-20 11:39:52,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:52,619 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:52,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:52,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1735493107, now seen corresponding path program 1 times
[2020-07-20 11:39:52,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:52,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490801774]
[2020-07-20 11:39:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:39:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:52,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:39:52,720 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:52,782 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:39:52,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:52,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490801774]
[2020-07-20 11:39:52,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:52,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:39:52,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267040927]
[2020-07-20 11:39:52,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:39:52,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:52,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:39:52,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:39:52,788 INFO L87 Difference]: Start difference. First operand 590 states and 775 transitions. Second operand 3 states.
[2020-07-20 11:39:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:53,483 INFO L93 Difference]: Finished difference Result 1462 states and 1992 transitions.
[2020-07-20 11:39:53,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:39:53,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127
[2020-07-20 11:39:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:53,496 INFO L225 Difference]: With dead ends: 1462
[2020-07-20 11:39:53,496 INFO L226 Difference]: Without dead ends: 878
[2020-07-20 11:39:53,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 11:39:53,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states.
[2020-07-20 11:39:53,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878.
[2020-07-20 11:39:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states.
[2020-07-20 11:39:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1157 transitions.
[2020-07-20 11:39:53,570 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1157 transitions. Word has length 127
[2020-07-20 11:39:53,570 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:53,570 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1157 transitions.
[2020-07-20 11:39:53,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:39:53,571 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1157 transitions.
[2020-07-20 11:39:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-07-20 11:39:53,577 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:53,581 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, 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]
[2020-07-20 11:39:53,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:53,783 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:53,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:53,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1739497747, now seen corresponding path program 1 times
[2020-07-20 11:39:53,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:53,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680472310]
[2020-07-20 11:39:53,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:39:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:53,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:39:53,875 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:39:53,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:53,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680472310]
[2020-07-20 11:39:53,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:53,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 11:39:53,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465982560]
[2020-07-20 11:39:53,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 11:39:53,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:53,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 11:39:53,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 11:39:53,924 INFO L87 Difference]: Start difference. First operand 878 states and 1157 transitions. Second operand 5 states.
[2020-07-20 11:39:54,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:54,891 INFO L93 Difference]: Finished difference Result 2370 states and 3201 transitions.
[2020-07-20 11:39:54,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-07-20 11:39:54,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143
[2020-07-20 11:39:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:54,900 INFO L225 Difference]: With dead ends: 2370
[2020-07-20 11:39:54,901 INFO L226 Difference]: Without dead ends: 1498
[2020-07-20 11:39:54,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-07-20 11:39:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states.
[2020-07-20 11:39:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1470.
[2020-07-20 11:39:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1470 states.
[2020-07-20 11:39:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1802 transitions.
[2020-07-20 11:39:54,952 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1802 transitions. Word has length 143
[2020-07-20 11:39:54,952 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:54,952 INFO L479 AbstractCegarLoop]: Abstraction has 1470 states and 1802 transitions.
[2020-07-20 11:39:54,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 11:39:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1802 transitions.
[2020-07-20 11:39:54,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2020-07-20 11:39:54,955 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:54,955 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, 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]
[2020-07-20 11:39:55,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:55,171 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:55,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1035653954, now seen corresponding path program 1 times
[2020-07-20 11:39:55,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:55,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277113093]
[2020-07-20 11:39:55,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:39:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:55,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:39:55,244 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:39:55,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:55,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277113093]
[2020-07-20 11:39:55,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:55,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:39:55,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120702361]
[2020-07-20 11:39:55,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:39:55,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:55,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:39:55,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:39:55,278 INFO L87 Difference]: Start difference. First operand 1470 states and 1802 transitions. Second operand 3 states.
[2020-07-20 11:39:55,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:55,966 INFO L93 Difference]: Finished difference Result 3226 states and 4023 transitions.
[2020-07-20 11:39:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:39:55,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144
[2020-07-20 11:39:55,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:55,981 INFO L225 Difference]: With dead ends: 3226
[2020-07-20 11:39:55,981 INFO L226 Difference]: Without dead ends: 1762
[2020-07-20 11:39:55,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 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 11:39:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states.
[2020-07-20 11:39:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762.
[2020-07-20 11:39:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states.
[2020-07-20 11:39:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2139 transitions.
[2020-07-20 11:39:56,047 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2139 transitions. Word has length 144
[2020-07-20 11:39:56,047 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:56,047 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2139 transitions.
[2020-07-20 11:39:56,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:39:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2139 transitions.
[2020-07-20 11:39:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2020-07-20 11:39:56,053 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:56,053 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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]
[2020-07-20 11:39:56,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:56,268 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:56,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:56,269 INFO L82 PathProgramCache]: Analyzing trace with hash 782482950, now seen corresponding path program 1 times
[2020-07-20 11:39:56,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:56,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909571626]
[2020-07-20 11:39:56,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:39:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:56,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:39:56,356 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2020-07-20 11:39:56,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:56,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909571626]
[2020-07-20 11:39:56,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:56,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:39:56,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786277018]
[2020-07-20 11:39:56,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:39:56,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:56,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:39:56,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:39:56,425 INFO L87 Difference]: Start difference. First operand 1762 states and 2139 transitions. Second operand 3 states.
[2020-07-20 11:39:57,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:57,038 INFO L93 Difference]: Finished difference Result 3806 states and 4699 transitions.
[2020-07-20 11:39:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:39:57,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215
[2020-07-20 11:39:57,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:57,059 INFO L225 Difference]: With dead ends: 3806
[2020-07-20 11:39:57,060 INFO L226 Difference]: Without dead ends: 2050
[2020-07-20 11:39:57,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 213 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 11:39:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states.
[2020-07-20 11:39:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050.
[2020-07-20 11:39:57,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2050 states.
[2020-07-20 11:39:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2517 transitions.
[2020-07-20 11:39:57,128 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2517 transitions. Word has length 215
[2020-07-20 11:39:57,129 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:57,129 INFO L479 AbstractCegarLoop]: Abstraction has 2050 states and 2517 transitions.
[2020-07-20 11:39:57,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:39:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2517 transitions.
[2020-07-20 11:39:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232
[2020-07-20 11:39:57,136 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:57,137 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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]
[2020-07-20 11:39:57,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:57,353 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:57,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:57,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1468840372, now seen corresponding path program 1 times
[2020-07-20 11:39:57,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:57,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045616753]
[2020-07-20 11:39:57,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 11:39:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:57,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:39:57,466 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2020-07-20 11:39:57,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:57,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045616753]
[2020-07-20 11:39:57,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:57,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:39:57,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561006642]
[2020-07-20 11:39:57,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:39:57,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:57,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:39:57,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:39:57,522 INFO L87 Difference]: Start difference. First operand 2050 states and 2517 transitions. Second operand 3 states.
[2020-07-20 11:39:58,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:58,179 INFO L93 Difference]: Finished difference Result 3206 states and 3989 transitions.
[2020-07-20 11:39:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:39:58,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231
[2020-07-20 11:39:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:58,196 INFO L225 Difference]: With dead ends: 3206
[2020-07-20 11:39:58,196 INFO L226 Difference]: Without dead ends: 3204
[2020-07-20 11:39:58,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 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 11:39:58,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states.
[2020-07-20 11:39:58,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 2775.
[2020-07-20 11:39:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2775 states.
[2020-07-20 11:39:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3490 transitions.
[2020-07-20 11:39:58,277 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3490 transitions. Word has length 231
[2020-07-20 11:39:58,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:58,278 INFO L479 AbstractCegarLoop]: Abstraction has 2775 states and 3490 transitions.
[2020-07-20 11:39:58,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:39:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3490 transitions.
[2020-07-20 11:39:58,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245
[2020-07-20 11:39:58,285 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:39:58,286 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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]
[2020-07-20 11:39:58,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:58,499 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:39:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:39:58,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1385670853, now seen corresponding path program 1 times
[2020-07-20 11:39:58,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:39:58,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378776839]
[2020-07-20 11:39:58,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:39:58,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:39:58,628 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:39:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2020-07-20 11:39:58,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:39:58,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378776839]
[2020-07-20 11:39:58,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:39:58,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:39:58,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137216650]
[2020-07-20 11:39:58,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:39:58,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:39:58,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:39:58,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:39:58,691 INFO L87 Difference]: Start difference. First operand 2775 states and 3490 transitions. Second operand 3 states.
[2020-07-20 11:39:59,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:39:59,333 INFO L93 Difference]: Finished difference Result 5828 states and 7294 transitions.
[2020-07-20 11:39:59,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:39:59,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244
[2020-07-20 11:39:59,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:39:59,335 INFO L225 Difference]: With dead ends: 5828
[2020-07-20 11:39:59,335 INFO L226 Difference]: Without dead ends: 0
[2020-07-20 11:39:59,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 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 11:39:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 11:39:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 11:39:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 11:39:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 11:39:59,350 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244
[2020-07-20 11:39:59,350 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:39:59,350 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 11:39:59,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:39:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 11:39:59,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 11:39:59,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:39:59,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 11:40:00,325 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 45
[2020-07-20 11:40:00,483 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 11:40:00,484 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|))
[2020-07-20 11:40:00,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 11:40:00,484 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,484 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,484 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,485 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,485 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,485 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,485 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,485 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,486 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,486 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed.
[2020-07-20 11:40:00,486 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed.
[2020-07-20 11:40:00,486 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed.
[2020-07-20 11:40:00,486 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed.
[2020-07-20 11:40:00,487 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed.
[2020-07-20 11:40:00,487 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed.
[2020-07-20 11:40:00,487 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,487 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,487 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,487 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,487 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,488 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,488 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,488 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,488 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,488 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,488 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,488 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,489 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,490 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,490 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed.
[2020-07-20 11:40:00,490 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,490 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,490 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,490 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,490 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed.
[2020-07-20 11:40:00,491 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,492 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,493 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,493 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,493 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,493 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed.
[2020-07-20 11:40:00,493 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed.
[2020-07-20 11:40:00,493 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed.
[2020-07-20 11:40:00,493 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,494 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed.
[2020-07-20 11:40:00,495 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed.
[2020-07-20 11:40:00,496 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,496 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,496 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,496 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,496 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,496 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,496 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed.
[2020-07-20 11:40:00,497 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,498 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed.
[2020-07-20 11:40:00,499 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,500 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed.
[2020-07-20 11:40:00,501 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed.
[2020-07-20 11:40:00,502 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed.
[2020-07-20 11:40:00,502 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed.
[2020-07-20 11:40:00,502 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-07-20 11:40:00,502 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,502 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,502 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse9 (<= ~a10~0 |old(~a10~0)|)) (.cse10 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and (<= 9 ~a19~0) .cse9 .cse10)) (.cse5 (not (<= |old(~a10~0)| 1))) (.cse0 (not (<= 9 |old(~a19~0)|))) (.cse6 (and .cse9 .cse10)) (.cse7 (not (<= |old(~a10~0)| 2))) (.cse8 (not (<= 4 |old(~a10~0)|))) (.cse3 (not (<= |old(~a1~0)| 23))) (.cse4 (<= ~a1~0 23)) (.cse2 (not (<= |old(~a19~0)| 9)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or (not (<= |old(~a19~0)| 6)) .cse6) (or .cse0 .cse1 .cse5) (or .cse3 .cse4 .cse2 .cse7) (or .cse3 .cse4 .cse0 .cse2) (or .cse6 .cse2 .cse7) (or .cse8 .cse2 (and .cse9 .cse10 (<= 4 ~a10~0))) (or .cse8 .cse3 .cse4 .cse2))))
[2020-07-20 11:40:00,502 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,503 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,504 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,505 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,506 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed.
[2020-07-20 11:40:00,507 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed.
[2020-07-20 11:40:00,508 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed.
[2020-07-20 11:40:00,508 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,508 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,508 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed.
[2020-07-20 11:40:00,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 11:40:00,508 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23))
[2020-07-20 11:40:00,508 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-07-20 11:40:00,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 11:40:00,508 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)))
[2020-07-20 11:40:00,508 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed.
[2020-07-20 11:40:00,509 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (and .cse0 (<= 4 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse0 (<= ~a10~0 2)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) .cse0)))
[2020-07-20 11:40:00,509 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed.
[2020-07-20 11:40:00,509 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed.
[2020-07-20 11:40:00,509 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (and .cse0 (<= 4 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse0 (<= ~a10~0 2)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) .cse0)))
[2020-07-20 11:40:00,509 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed.
[2020-07-20 11:40:00,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:40:00 BoogieIcfgContainer
[2020-07-20 11:40:00,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 11:40:00,534 INFO L168 Benchmark]: Toolchain (without parser) took 13350.44 ms. Allocated memory was 136.3 MB in the beginning and 389.0 MB in the end (delta: 252.7 MB). Free memory was 99.1 MB in the beginning and 316.1 MB in the end (delta: -217.0 MB). Peak memory consumption was 274.0 MB. Max. memory is 7.1 GB.
[2020-07-20 11:40:00,539 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-07-20 11:40:00,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.81 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 98.7 MB in the beginning and 166.4 MB in the end (delta: -67.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB.
[2020-07-20 11:40:00,541 INFO L168 Benchmark]: Boogie Preprocessor took 114.23 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 161.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
[2020-07-20 11:40:00,542 INFO L168 Benchmark]: RCFGBuilder took 1360.58 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 161.9 MB in the beginning and 178.5 MB in the end (delta: -16.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB.
[2020-07-20 11:40:00,546 INFO L168 Benchmark]: TraceAbstraction took 11109.96 ms. Allocated memory was 231.2 MB in the beginning and 389.0 MB in the end (delta: 157.8 MB). Free memory was 177.0 MB in the beginning and 316.1 MB in the end (delta: -139.1 MB). Peak memory consumption was 257.0 MB. Max. memory is 7.1 GB.
[2020-07-20 11:40:00,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 752.81 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 98.7 MB in the beginning and 166.4 MB in the end (delta: -67.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 114.23 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 161.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1360.58 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 161.9 MB in the beginning and 178.5 MB in the end (delta: -16.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 11109.96 ms. Allocated memory was 231.2 MB in the beginning and 389.0 MB in the end (delta: 157.8 MB). Free memory was 177.0 MB in the beginning and 316.1 MB in the end (delta: -139.1 MB). Peak memory consumption was 257.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 130]: 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: 582]: Loop Invariant
Derived loop invariant: (((((((a10 <= 1 || !(\old(a1) <= 23)) || a19 <= 6) || (a19 <= 9 && 4 <= a10)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 <= 9 && a10 <= 2)) || !(\old(a19) <= 9)) || (9 <= a19 && a19 <= 9)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.0s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 681 SDtfs, 1386 SDslu, 134 SDs, 0 SdLazy, 3432 SolverSat, 681 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1272 GetRequests, 1254 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2775occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 469 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 81 PreInvPairs, 123 NumberOfFragments, 285 HoareAnnotationTreeSize, 81 FomulaSimplifications, 1537 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 720 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1274 NumberOfCodeBlocks, 1274 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1266 ConstructedInterpolants, 0 QuantifiedInterpolants, 365908 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2438 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 634/634 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...