/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/Problem01_label08.c
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This is Ultimate 0.1.25-d623d84
[2020-07-20 11:32:44,544 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-20 11:32:44,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 11:32:44,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 11:32:44,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 11:32:44,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 11:32:44,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 11:32:44,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 11:32:44,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 11:32:44,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 11:32:44,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 11:32:44,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 11:32:44,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 11:32:44,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 11:32:44,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 11:32:44,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 11:32:44,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 11:32:44,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 11:32:44,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 11:32:44,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 11:32:44,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 11:32:44,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 11:32:44,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 11:32:44,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 11:32:44,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 11:32:44,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 11:32:44,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-07-20 11:32:44,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-07-20 11:32:44,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 11:32:44,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 11:32:44,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-07-20 11:32:44,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-20 11:32:44,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 11:32:44,631 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 11:32:44,668 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-20 11:32:44,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 11:32:44,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 11:32:44,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-20 11:32:44,670 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-20 11:32:44,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 11:32:44,673 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-20 11:32:44,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-20 11:32:44,673 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-20 11:32:44,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-20 11:32:44,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 11:32:44,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 11:32:44,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 11:32:44,674 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-20 11:32:44,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-20 11:32:44,674 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-20 11:32:44,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-20 11:32:44,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 11:32:44,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-20 11:32:44,675 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-20 11:32:44,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-20 11:32:44,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 11:32:44,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 11:32:44,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 11:32:44,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 11:32:44,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-20 11:32:44,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:44,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 11:32:44,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-20 11:32:44,678 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 11:32:44,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 11:32:44,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 11:32:44,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 11:32:44,988 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-20 11:32:44,988 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-20 11:32:44,989 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c
[2020-07-20 11:32:45,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b82335f/4b670ebb4b5e4413aa9f8895968dc173/FLAGdbefe7181
[2020-07-20 11:32:45,683 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-20 11:32:45,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c
[2020-07-20 11:32:45,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b82335f/4b670ebb4b5e4413aa9f8895968dc173/FLAGdbefe7181
[2020-07-20 11:32:45,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08b82335f/4b670ebb4b5e4413aa9f8895968dc173
[2020-07-20 11:32:45,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 11:32:45,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 11:32:45,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 11:32:45,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 11:32:45,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 11:32:45,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:32:45" (1/1) ...
[2020-07-20 11:32:45,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ad6925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:45, skipping insertion in model container
[2020-07-20 11:32:45,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:32:45" (1/1) ...
[2020-07-20 11:32:45,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-20 11:32:45,954 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-20 11:32:46,358 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:32:46,364 INFO L203 MainTranslator]: Completed pre-run
[2020-07-20 11:32:46,611 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:32:46,628 INFO L208 MainTranslator]: Completed translation
[2020-07-20 11:32:46,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46 WrapperNode
[2020-07-20 11:32:46,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 11:32:46,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 11:32:46,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 11:32:46,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 11:32:46,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (1/1) ...
[2020-07-20 11:32:46,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 11:32:46,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 11:32:46,758 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 11:32:46,758 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-20 11:32:46,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (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 11:32:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 11:32:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 11:32:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-07-20 11:32:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 11:32:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output
[2020-07-20 11:32:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 11:32:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 11:32:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-07-20 11:32:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-20 11:32:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 11:32:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 11:32:48,067 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 11:32:48,067 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-20 11:32:48,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:32:48 BoogieIcfgContainer
[2020-07-20 11:32:48,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 11:32:48,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 11:32:48,075 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 11:32:48,078 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-20 11:32:48,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:32:45" (1/3) ...
[2020-07-20 11:32:48,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10100ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:32:48, skipping insertion in model container
[2020-07-20 11:32:48,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:32:46" (2/3) ...
[2020-07-20 11:32:48,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10100ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:32:48, skipping insertion in model container
[2020-07-20 11:32:48,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:32:48" (3/3) ...
[2020-07-20 11:32:48,082 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c
[2020-07-20 11:32:48,094 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 11:32:48,102 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 11:32:48,117 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 11:32:48,144 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-20 11:32:48,144 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-20 11:32:48,144 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 11:32:48,144 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 11:32:48,145 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 11:32:48,145 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-20 11:32:48,145 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 11:32:48,145 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 11:32:48,170 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states.
[2020-07-20 11:32:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2020-07-20 11:32:48,184 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:48,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:48,185 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:48,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:48,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times
[2020-07-20 11:32:48,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:48,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486316531]
[2020-07-20 11:32:48,203 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 11:32:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:48,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:32:48,419 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:48,547 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 11:32:48,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:48,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486316531]
[2020-07-20 11:32:48,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:48,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:48,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969600604]
[2020-07-20 11:32:48,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:48,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:48,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:48,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:48,578 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states.
[2020-07-20 11:32:49,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:49,659 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions.
[2020-07-20 11:32:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:32:49,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119
[2020-07-20 11:32:49,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:49,695 INFO L225 Difference]: With dead ends: 572
[2020-07-20 11:32:49,700 INFO L226 Difference]: Without dead ends: 278
[2020-07-20 11:32:49,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 11:32:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2020-07-20 11:32:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278.
[2020-07-20 11:32:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states.
[2020-07-20 11:32:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions.
[2020-07-20 11:32:49,831 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 119
[2020-07-20 11:32:49,832 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:49,832 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions.
[2020-07-20 11:32:49,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions.
[2020-07-20 11:32:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2020-07-20 11:32:49,838 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:49,838 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:50,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:50,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:50,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times
[2020-07-20 11:32:50,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:50,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906272485]
[2020-07-20 11:32:50,052 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 11:32:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:50,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:32:50,149 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:50,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:50,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906272485]
[2020-07-20 11:32:50,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:50,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-20 11:32:50,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537300649]
[2020-07-20 11:32:50,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 11:32:50,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:50,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 11:32:50,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-20 11:32:50,194 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states.
[2020-07-20 11:32:51,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:51,028 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions.
[2020-07-20 11:32:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-07-20 11:32:51,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129
[2020-07-20 11:32:51,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:51,046 INFO L225 Difference]: With dead ends: 842
[2020-07-20 11:32:51,047 INFO L226 Difference]: Without dead ends: 570
[2020-07-20 11:32:51,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 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 11:32:51,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states.
[2020-07-20 11:32:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556.
[2020-07-20 11:32:51,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states.
[2020-07-20 11:32:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions.
[2020-07-20 11:32:51,125 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 129
[2020-07-20 11:32:51,125 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:51,125 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions.
[2020-07-20 11:32:51,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 11:32:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions.
[2020-07-20 11:32:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2020-07-20 11:32:51,131 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:51,131 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:51,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:51,365 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:51,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times
[2020-07-20 11:32:51,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:51,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605669416]
[2020-07-20 11:32:51,367 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 11:32:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:51,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 11:32:51,461 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:51,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:51,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605669416]
[2020-07-20 11:32:51,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:51,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:51,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553488446]
[2020-07-20 11:32:51,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:51,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:51,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:51,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:51,501 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states.
[2020-07-20 11:32:52,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:52,069 INFO L93 Difference]: Finished difference Result 1652 states and 2381 transitions.
[2020-07-20 11:32:52,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:32:52,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130
[2020-07-20 11:32:52,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:52,080 INFO L225 Difference]: With dead ends: 1652
[2020-07-20 11:32:52,080 INFO L226 Difference]: Without dead ends: 1102
[2020-07-20 11:32:52,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 11:32:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states.
[2020-07-20 11:32:52,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102.
[2020-07-20 11:32:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states.
[2020-07-20 11:32:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1516 transitions.
[2020-07-20 11:32:52,153 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1516 transitions. Word has length 130
[2020-07-20 11:32:52,153 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:52,153 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1516 transitions.
[2020-07-20 11:32:52,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1516 transitions.
[2020-07-20 11:32:52,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-07-20 11:32:52,163 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:52,164 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:52,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:52,379 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:52,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:52,380 INFO L82 PathProgramCache]: Analyzing trace with hash 509652639, now seen corresponding path program 1 times
[2020-07-20 11:32:52,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:52,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249992407]
[2020-07-20 11:32:52,382 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 11:32:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:52,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:52,530 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:52,604 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:52,604 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:32:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:52,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249992407]
[2020-07-20 11:32:52,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:32:52,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2020-07-20 11:32:52,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309506232]
[2020-07-20 11:32:52,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-07-20 11:32:52,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:52,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-07-20 11:32:52,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2020-07-20 11:32:52,695 INFO L87 Difference]: Start difference. First operand 1102 states and 1516 transitions. Second operand 8 states.
[2020-07-20 11:32:54,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:54,567 INFO L93 Difference]: Finished difference Result 4083 states and 6003 transitions.
[2020-07-20 11:32:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-07-20 11:32:54,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149
[2020-07-20 11:32:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:54,599 INFO L225 Difference]: With dead ends: 4083
[2020-07-20 11:32:54,599 INFO L226 Difference]: Without dead ends: 2987
[2020-07-20 11:32:54,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2020-07-20 11:32:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states.
[2020-07-20 11:32:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2351.
[2020-07-20 11:32:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2351 states.
[2020-07-20 11:32:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3107 transitions.
[2020-07-20 11:32:54,738 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3107 transitions. Word has length 149
[2020-07-20 11:32:54,738 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:54,739 INFO L479 AbstractCegarLoop]: Abstraction has 2351 states and 3107 transitions.
[2020-07-20 11:32:54,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-07-20 11:32:54,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3107 transitions.
[2020-07-20 11:32:54,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2020-07-20 11:32:54,748 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:54,748 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:54,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:54,962 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:54,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:54,963 INFO L82 PathProgramCache]: Analyzing trace with hash 127065043, now seen corresponding path program 1 times
[2020-07-20 11:32:54,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:54,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406793418]
[2020-07-20 11:32:54,964 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 11:32:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:55,094 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:55,159 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:32:55,249 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:32:55,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406793418]
[2020-07-20 11:32:55,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:32:55,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2020-07-20 11:32:55,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415376760]
[2020-07-20 11:32:55,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 11:32:55,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:55,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 11:32:55,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 11:32:55,253 INFO L87 Difference]: Start difference. First operand 2351 states and 3107 transitions. Second operand 7 states.
[2020-07-20 11:32:56,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:56,962 INFO L93 Difference]: Finished difference Result 7465 states and 10618 transitions.
[2020-07-20 11:32:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-07-20 11:32:56,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150
[2020-07-20 11:32:56,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:57,008 INFO L225 Difference]: With dead ends: 7465
[2020-07-20 11:32:57,008 INFO L226 Difference]: Without dead ends: 5124
[2020-07-20 11:32:57,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2020-07-20 11:32:57,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states.
[2020-07-20 11:32:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 4716.
[2020-07-20 11:32:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4716 states.
[2020-07-20 11:32:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6222 transitions.
[2020-07-20 11:32:57,224 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6222 transitions. Word has length 150
[2020-07-20 11:32:57,224 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:57,224 INFO L479 AbstractCegarLoop]: Abstraction has 4716 states and 6222 transitions.
[2020-07-20 11:32:57,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 11:32:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6222 transitions.
[2020-07-20 11:32:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-07-20 11:32:57,240 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:57,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:57,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:57,454 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:57,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash 941995943, now seen corresponding path program 1 times
[2020-07-20 11:32:57,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:57,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761223507]
[2020-07-20 11:32:57,458 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 11:32:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:57,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:57,558 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-20 11:32:57,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:57,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761223507]
[2020-07-20 11:32:57,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:57,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:57,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551688636]
[2020-07-20 11:32:57,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:57,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:57,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:57,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:57,643 INFO L87 Difference]: Start difference. First operand 4716 states and 6222 transitions. Second operand 3 states.
[2020-07-20 11:32:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:58,234 INFO L93 Difference]: Finished difference Result 9553 states and 12594 transitions.
[2020-07-20 11:32:58,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:32:58,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-07-20 11:32:58,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:58,275 INFO L225 Difference]: With dead ends: 9553
[2020-07-20 11:32:58,275 INFO L226 Difference]: Without dead ends: 5121
[2020-07-20 11:32:58,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 11:32:58,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5121 states.
[2020-07-20 11:32:58,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 4575.
[2020-07-20 11:32:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4575 states.
[2020-07-20 11:32:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 5845 transitions.
[2020-07-20 11:32:58,431 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 5845 transitions. Word has length 153
[2020-07-20 11:32:58,432 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:58,432 INFO L479 AbstractCegarLoop]: Abstraction has 4575 states and 5845 transitions.
[2020-07-20 11:32:58,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 5845 transitions.
[2020-07-20 11:32:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-07-20 11:32:58,453 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:58,453 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:58,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:58,667 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:58,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:58,667 INFO L82 PathProgramCache]: Analyzing trace with hash -763083429, now seen corresponding path program 1 times
[2020-07-20 11:32:58,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:58,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833431788]
[2020-07-20 11:32:58,670 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 11:32:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:58,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:58,776 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-07-20 11:32:58,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:58,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833431788]
[2020-07-20 11:32:58,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:58,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:58,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241204853]
[2020-07-20 11:32:58,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:58,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:58,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:58,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:58,814 INFO L87 Difference]: Start difference. First operand 4575 states and 5845 transitions. Second operand 3 states.
[2020-07-20 11:32:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:32:59,404 INFO L93 Difference]: Finished difference Result 7770 states and 9887 transitions.
[2020-07-20 11:32:59,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:32:59,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154
[2020-07-20 11:32:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:32:59,428 INFO L225 Difference]: With dead ends: 7770
[2020-07-20 11:32:59,429 INFO L226 Difference]: Without dead ends: 4710
[2020-07-20 11:32:59,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 11:32:59,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4710 states.
[2020-07-20 11:32:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 4436.
[2020-07-20 11:32:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4436 states.
[2020-07-20 11:32:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5602 transitions.
[2020-07-20 11:32:59,549 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 5602 transitions. Word has length 154
[2020-07-20 11:32:59,549 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:32:59,549 INFO L479 AbstractCegarLoop]: Abstraction has 4436 states and 5602 transitions.
[2020-07-20 11:32:59,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:32:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 5602 transitions.
[2020-07-20 11:32:59,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2020-07-20 11:32:59,563 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:32:59,564 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:32:59,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:32:59,778 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:32:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:32:59,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1873222613, now seen corresponding path program 1 times
[2020-07-20 11:32:59,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:32:59,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268210440]
[2020-07-20 11:32:59,780 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 11:32:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:32:59,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:32:59,876 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:32:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-20 11:32:59,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:32:59,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268210440]
[2020-07-20 11:32:59,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:32:59,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:32:59,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99726204]
[2020-07-20 11:32:59,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:32:59,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:32:59,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:32:59,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:32:59,928 INFO L87 Difference]: Start difference. First operand 4436 states and 5602 transitions. Second operand 3 states.
[2020-07-20 11:33:00,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:00,459 INFO L93 Difference]: Finished difference Result 7911 states and 9988 transitions.
[2020-07-20 11:33:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:33:00,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155
[2020-07-20 11:33:00,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:00,482 INFO L225 Difference]: With dead ends: 7911
[2020-07-20 11:33:00,482 INFO L226 Difference]: Without dead ends: 4436
[2020-07-20 11:33:00,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 11:33:00,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4436 states.
[2020-07-20 11:33:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4436 to 4436.
[2020-07-20 11:33:00,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4436 states.
[2020-07-20 11:33:00,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5429 transitions.
[2020-07-20 11:33:00,647 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 5429 transitions. Word has length 155
[2020-07-20 11:33:00,647 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:00,648 INFO L479 AbstractCegarLoop]: Abstraction has 4436 states and 5429 transitions.
[2020-07-20 11:33:00,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:33:00,648 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 5429 transitions.
[2020-07-20 11:33:00,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-07-20 11:33:00,662 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:33:00,662 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:00,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:00,880 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:33:00,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:33:00,880 INFO L82 PathProgramCache]: Analyzing trace with hash 590175403, now seen corresponding path program 1 times
[2020-07-20 11:33:00,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:33:00,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525283410]
[2020-07-20 11:33:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:33:00,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-07-20 11:33:01,004 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:33:01,057 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-07-20 11:33:01,058 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:33:01,144 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-07-20 11:33:01,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525283410]
[2020-07-20 11:33:01,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:33:01,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5
[2020-07-20 11:33:01,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19023468]
[2020-07-20 11:33:01,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-20 11:33:01,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:33:01,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-20 11:33:01,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-07-20 11:33:01,146 INFO L87 Difference]: Start difference. First operand 4436 states and 5429 transitions. Second operand 5 states.
[2020-07-20 11:33:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:01,810 INFO L93 Difference]: Finished difference Result 5143 states and 6330 transitions.
[2020-07-20 11:33:01,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-07-20 11:33:01,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163
[2020-07-20 11:33:01,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:01,842 INFO L225 Difference]: With dead ends: 5143
[2020-07-20 11:33:01,842 INFO L226 Difference]: Without dead ends: 5141
[2020-07-20 11:33:01,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2020-07-20 11:33:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states.
[2020-07-20 11:33:02,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 4851.
[2020-07-20 11:33:02,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4851 states.
[2020-07-20 11:33:02,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 5950 transitions.
[2020-07-20 11:33:02,013 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 5950 transitions. Word has length 163
[2020-07-20 11:33:02,014 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:02,014 INFO L479 AbstractCegarLoop]: Abstraction has 4851 states and 5950 transitions.
[2020-07-20 11:33:02,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-20 11:33:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 5950 transitions.
[2020-07-20 11:33:02,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-07-20 11:33:02,028 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:33:02,028 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:33:02,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:02,242 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:33:02,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:33:02,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1466650285, now seen corresponding path program 1 times
[2020-07-20 11:33:02,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:33:02,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635883130]
[2020-07-20 11:33:02,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:33:02,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core
[2020-07-20 11:33:02,336 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:33:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-20 11:33:02,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:33:02,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635883130]
[2020-07-20 11:33:02,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:33:02,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-20 11:33:02,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969177687]
[2020-07-20 11:33:02,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-20 11:33:02,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:33:02,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-20 11:33:02,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-20 11:33:02,376 INFO L87 Difference]: Start difference. First operand 4851 states and 5950 transitions. Second operand 3 states.
[2020-07-20 11:33:02,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:02,960 INFO L93 Difference]: Finished difference Result 8878 states and 10858 transitions.
[2020-07-20 11:33:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-07-20 11:33:02,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175
[2020-07-20 11:33:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:02,976 INFO L225 Difference]: With dead ends: 8878
[2020-07-20 11:33:02,976 INFO L226 Difference]: Without dead ends: 4986
[2020-07-20 11:33:02,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 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 11:33:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4986 states.
[2020-07-20 11:33:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4986 to 4432.
[2020-07-20 11:33:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4432 states.
[2020-07-20 11:33:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 5400 transitions.
[2020-07-20 11:33:03,069 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 5400 transitions. Word has length 175
[2020-07-20 11:33:03,070 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:03,070 INFO L479 AbstractCegarLoop]: Abstraction has 4432 states and 5400 transitions.
[2020-07-20 11:33:03,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-20 11:33:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 5400 transitions.
[2020-07-20 11:33:03,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2020-07-20 11:33:03,084 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-20 11:33:03,085 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:33:03,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:03,298 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:33:03,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:33:03,298 INFO L82 PathProgramCache]: Analyzing trace with hash -853384892, now seen corresponding path program 1 times
[2020-07-20 11:33:03,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:33:03,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331110599]
[2020-07-20 11:33:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:33:03,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-20 11:33:03,421 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:33:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-07-20 11:33:03,475 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-20 11:33:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-07-20 11:33:03,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331110599]
[2020-07-20 11:33:03,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-20 11:33:03,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2020-07-20 11:33:03,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642336290]
[2020-07-20 11:33:03,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-07-20 11:33:03,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:33:03,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-07-20 11:33:03,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-07-20 11:33:03,660 INFO L87 Difference]: Start difference. First operand 4432 states and 5400 transitions. Second operand 7 states.
[2020-07-20 11:33:05,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:33:05,187 INFO L93 Difference]: Finished difference Result 7689 states and 9434 transitions.
[2020-07-20 11:33:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-07-20 11:33:05,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212
[2020-07-20 11:33:05,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:33:05,189 INFO L225 Difference]: With dead ends: 7689
[2020-07-20 11:33:05,189 INFO L226 Difference]: Without dead ends: 0
[2020-07-20 11:33:05,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2020-07-20 11:33:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-20 11:33:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-20 11:33:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-20 11:33:05,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-20 11:33:05,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212
[2020-07-20 11:33:05,211 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:33:05,211 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-20 11:33:05,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-07-20 11:33:05,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-20 11:33:05,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-20 11:33:05,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:33:05,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-20 11:33:06,349 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 142
[2020-07-20 11:33:06,677 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 142
[2020-07-20 11:33:08,153 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 169 DAG size of output: 101
[2020-07-20 11:33:09,096 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 51
[2020-07-20 11:33:09,972 WARN L193 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 51
[2020-07-20 11:33:09,977 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 11:33:09,977 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a21~0 |old(~a21~0)|))
[2020-07-20 11:33:09,977 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 11:33:09,977 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,978 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,979 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed.
[2020-07-20 11:33:09,980 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,981 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed.
[2020-07-20 11:33:09,982 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed.
[2020-07-20 11:33:09,983 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,984 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,985 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,986 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,989 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,990 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,991 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,992 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,992 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,992 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,993 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,993 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,994 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed.
[2020-07-20 11:33:09,995 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a8~0)| 13))) (.cse17 (not (<= |old(~a16~0)| 5))) (.cse20 (<= ~a16~0 5)) (.cse4 (<= ~a8~0 |old(~a8~0)|)) (.cse5 (<= ~a16~0 |old(~a16~0)|))) (let ((.cse16 (not (<= |old(~a21~0)| 0))) (.cse15 (<= 15 ~a8~0)) (.cse13 (<= 5 ~a16~0)) (.cse14 (not (<= 15 |old(~a8~0)|))) (.cse21 (= ~a7~0 |old(~a7~0)|)) (.cse12 (<= 14 ~a8~0)) (.cse8 (= 1 ~a17~0)) (.cse11 (not (<= 5 |old(~a16~0)|))) (.cse9 (not (<= 14 |old(~a8~0)|))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse19 (not (<= |old(~a7~0)| 0))) (.cse2 (not (= 1 |old(~a17~0)|))) (.cse18 (or (and .cse4 .cse5 .cse20 (< ~a8~0 15)) (and .cse4 .cse5 (<= ~a8~0 13)))) (.cse6 (= 1 ~a7~0)) (.cse22 (<= 6 ~a16~0)) (.cse7 (<= ~a21~0 |old(~a21~0)|)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse10 (and .cse1 (or .cse17 (not (< |old(~a8~0)| 15))))) (.cse23 (not (<= 6 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8)) (or .cse9 .cse10 .cse11 (and .cse12 .cse13)) (or .cse14 (and .cse4 .cse5 .cse6 .cse7 .cse15) .cse0 .cse3) (or .cse16 .cse0 .cse17 .cse8 .cse1 .cse2) (or .cse16 .cse0 (and .cse18 .cse6 .cse7) .cse3 .cse10) (or .cse14 .cse19 .cse15) (or .cse14 .cse19 .cse8 .cse17 .cse2) (or .cse16 .cse0 (and .cse18 .cse6 .cse7 .cse13) .cse10 .cse11) (or .cse14 .cse19 .cse13 .cse11) (or .cse14 .cse0 .cse17 .cse11 (and .cse4 .cse6 .cse7 .cse20 .cse15 .cse13)) (or .cse14 .cse19 (and .cse4 .cse5 .cse21 .cse22 .cse7) .cse23) (or (and .cse21 (or (and .cse18 .cse7 .cse12) (and (let ((.cse24 (<= ~a7~0 0))) (or (and .cse4 .cse5 .cse24 .cse8) (and .cse4 .cse5 .cse24 .cse20))) .cse7))) (and (or .cse9 .cse10 .cse11) (or .cse19 .cse17) (or .cse9 .cse3 .cse10) (or .cse19 .cse1 .cse2))) (or (and .cse18 .cse6 .cse22 .cse7) .cse0 .cse10 .cse23))))
[2020-07-20 11:33:09,996 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,996 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed.
[2020-07-20 11:33:09,997 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,998 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed.
[2020-07-20 11:33:09,999 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,000 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed.
[2020-07-20 11:33:10,001 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed.
[2020-07-20 11:33:10,002 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-07-20 11:33:10,003 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0))
[2020-07-20 11:33:10,003 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-07-20 11:33:10,003 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-07-20 11:33:10,003 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a17~0)|)) (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a21~0 |old(~a21~0)|) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 5 |old(~a16~0)|)))
[2020-07-20 11:33:10,003 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed.
[2020-07-20 11:33:10,003 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5))) (let ((.cse2 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (or .cse3 (and .cse6 (< ~a8~0 15)))) (.cse4 (<= ~a7~0 0))) (or (and .cse0 (<= ~a21~0 0) .cse1) (and .cse0 .cse2 (<= ~a16~0 4)) (and .cse3 .cse4 .cse2) (and .cse4 .cse5) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 6 ~a16~0) .cse1) (and .cse0 .cse6 .cse5) (and (<= 14 ~a8~0) .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse4 .cse6) (not (<= |old(~a16~0)| 5)))))
[2020-07-20 11:33:10,004 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed.
[2020-07-20 11:33:10,004 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed.
[2020-07-20 11:33:10,004 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (<= ~a8~0 13)) (.cse6 (<= ~a16~0 5))) (let ((.cse2 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse5 (<= 15 ~a8~0)) (.cse1 (or .cse3 (and .cse6 (< ~a8~0 15)))) (.cse4 (<= ~a7~0 0))) (or (and .cse0 (<= ~a21~0 0) .cse1) (and .cse0 .cse2 (<= ~a16~0 4)) (and .cse3 .cse4 .cse2) (and .cse4 .cse5) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 6 ~a16~0) .cse1) (and .cse0 .cse6 .cse5) (and (<= 14 ~a8~0) .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse4 .cse6) (not (<= |old(~a16~0)| 5)))))
[2020-07-20 11:33:10,004 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed.
[2020-07-20 11:33:10,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:33:10 BoogieIcfgContainer
[2020-07-20 11:33:10,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 11:33:10,032 INFO L168 Benchmark]: Toolchain (without parser) took 24142.82 ms. Allocated memory was 139.5 MB in the beginning and 569.4 MB in the end (delta: 429.9 MB). Free memory was 103.1 MB in the beginning and 190.5 MB in the end (delta: -87.4 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,033 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.58 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.6 MB in the beginning and 172.9 MB in the end (delta: -70.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,034 INFO L168 Benchmark]: Boogie Preprocessor took 128.03 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,035 INFO L168 Benchmark]: RCFGBuilder took 1315.52 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 168.1 MB in the beginning and 179.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,036 INFO L168 Benchmark]: TraceAbstraction took 21955.48 ms. Allocated memory was 238.6 MB in the beginning and 569.4 MB in the end (delta: 330.8 MB). Free memory was 179.1 MB in the beginning and 190.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 438.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:33:10,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 737.58 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.6 MB in the beginning and 172.9 MB in the end (delta: -70.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 128.03 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1315.52 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 168.1 MB in the beginning and 179.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 21955.48 ms. Allocated memory was 238.6 MB in the beginning and 569.4 MB in the end (delta: 330.8 MB). Free memory was 179.1 MB in the beginning and 190.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 438.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 515]: 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: 583]: Loop Invariant
Derived loop invariant: (((((((((((((1 == a7 && a21 <= 0) && (a8 <= 13 || (a16 <= 5 && a8 < 15))) || ((1 == a7 && 1 == a17) && a16 <= 4)) || ((a8 <= 13 && a7 <= 0) && 1 == a17)) || (a7 <= 0 && 15 <= a8)) || !(\old(a7) <= 0)) || !(1 == \old(a17))) || !(5 <= \old(a16))) || ((1 == a7 && 6 <= a16) && (a8 <= 13 || (a16 <= 5 && a8 < 15)))) || ((1 == a7 && a16 <= 5) && 15 <= a8)) || (14 <= a8 && (a8 <= 13 || (a16 <= 5 && a8 < 15)))) || !(15 <= \old(a8))) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 578 SDtfs, 3016 SDslu, 302 SDs, 0 SdLazy, 7558 SolverSat, 1248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2373 GetRequests, 2329 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4851occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 2722 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 215 PreInvPairs, 305 NumberOfFragments, 848 HoareAnnotationTreeSize, 215 FomulaSimplifications, 68034 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 33503 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1689 NumberOfCodeBlocks, 1689 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2348 ConstructedInterpolants, 0 QuantifiedInterpolants, 844662 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4687 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 677/716 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...