/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-5644d1e-m
[2020-08-19 06:00:21,645 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-19 06:00:21,647 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-19 06:00:21,670 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-19 06:00:21,670 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-19 06:00:21,671 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-19 06:00:21,673 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-19 06:00:21,674 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-19 06:00:21,676 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-19 06:00:21,676 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-08-19 06:00:21,678 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-19 06:00:21,679 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-19 06:00:21,680 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-19 06:00:21,680 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-19 06:00:21,681 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-19 06:00:21,682 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-19 06:00:21,683 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-19 06:00:21,685 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-19 06:00:21,686 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-19 06:00:21,688 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-19 06:00:21,689 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-19 06:00:21,690 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-19 06:00:21,691 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-19 06:00:21,693 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-19 06:00:21,693 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-19 06:00:21,694 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-19 06:00:21,694 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-19 06:00:21,695 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-19 06:00:21,696 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-19 06:00:21,696 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-19 06:00:21,696 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-19 06:00:21,697 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-08-19 06:00:21,699 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-19 06:00:21,699 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-08-19 06:00:21,700 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-08-19 06:00:21,702 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-19 06:00:21,702 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-08-19 06:00:21,729 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-19 06:00:21,729 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-19 06:00:21,730 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-19 06:00:21,730 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-08-19 06:00:21,730 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-08-19 06:00:21,731 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-19 06:00:21,731 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-19 06:00:21,731 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-19 06:00:21,731 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-19 06:00:21,731 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-19 06:00:21,732 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-19 06:00:21,732 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-19 06:00:21,732 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-19 06:00:21,732 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-19 06:00:21,732 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-19 06:00:21,733 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-19 06:00:21,735 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-19 06:00:21,735 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-19 06:00:21,735 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-08-19 06:00:21,735 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-19 06:00:21,736 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-19 06:00:21,736 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-19 06:00:21,736 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-19 06:00:21,736 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-08-19 06:00:21,736 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-19 06:00:21,737 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-08-19 06:00:21,737 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-19 06:00:21,737 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-19 06:00:21,737 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-08-19 06:00:21,737 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;
[2020-08-19 06:00:22,064 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-19 06:00:22,075 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-19 06:00:22,078 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-19 06:00:22,079 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-19 06:00:22,079 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-19 06:00:22,080 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c
[2020-08-19 06:00:22,145 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/795d50aba/02b0ea459e564050908d0777d7d55d82/FLAG1908740cd
[2020-08-19 06:00:22,613 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-19 06:00:22,614 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c
[2020-08-19 06:00:22,624 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/795d50aba/02b0ea459e564050908d0777d7d55d82/FLAG1908740cd
[2020-08-19 06:00:22,968 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/795d50aba/02b0ea459e564050908d0777d7d55d82
[2020-08-19 06:00:22,976 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-19 06:00:22,978 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-19 06:00:22,979 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-19 06:00:22,979 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-19 06:00:22,983 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-19 06:00:22,983 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:00:22" (1/1) ...
[2020-08-19 06:00:22,986 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174d0856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:22, skipping insertion in model container
[2020-08-19 06:00:22,986 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:00:22" (1/1) ...
[2020-08-19 06:00:22,994 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-19 06:00:23,031 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-19 06:00:23,284 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-19 06:00:23,292 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-19 06:00:23,459 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-19 06:00:23,476 INFO  L208         MainTranslator]: Completed translation
[2020-08-19 06:00:23,477 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23 WrapperNode
[2020-08-19 06:00:23,477 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-19 06:00:23,478 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-19 06:00:23,478 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-19 06:00:23,478 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-19 06:00:23,492 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
[2020-08-19 06:00:23,492 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
[2020-08-19 06:00:23,502 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
[2020-08-19 06:00:23,503 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
[2020-08-19 06:00:23,514 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
[2020-08-19 06:00:23,526 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
[2020-08-19 06:00:23,529 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
[2020-08-19 06:00:23,533 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-19 06:00:23,533 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-19 06:00:23,534 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-19 06:00:23,535 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-19 06:00:23,536 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-19 06:00:23,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-19 06:00:23,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-19 06:00:23,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure ssl3_connect
[2020-08-19 06:00:23,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-19 06:00:23,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-19 06:00:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2020-08-19 06:00:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-19 06:00:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long
[2020-08-19 06:00:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure ssl3_connect
[2020-08-19 06:00:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-19 06:00:23,604 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-19 06:00:23,604 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-19 06:00:23,761 WARN  L779   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2020-08-19 06:00:24,260 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false;
[2020-08-19 06:00:24,260 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false;
[2020-08-19 06:00:24,280 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-19 06:00:24,280 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-08-19 06:00:24,285 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:00:24 BoogieIcfgContainer
[2020-08-19 06:00:24,285 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-19 06:00:24,286 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-19 06:00:24,287 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-19 06:00:24,290 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-19 06:00:24,290 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:00:22" (1/3) ...
[2020-08-19 06:00:24,291 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18256b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:00:24, skipping insertion in model container
[2020-08-19 06:00:24,291 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:00:23" (2/3) ...
[2020-08-19 06:00:24,292 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18256b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:00:24, skipping insertion in model container
[2020-08-19 06:00:24,292 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:00:24" (3/3) ...
[2020-08-19 06:00:24,294 INFO  L109   eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c
[2020-08-19 06:00:24,304 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-19 06:00:24,312 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-19 06:00:24,326 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-19 06:00:24,351 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-19 06:00:24,351 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-19 06:00:24,352 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-19 06:00:24,352 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-19 06:00:24,352 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-19 06:00:24,352 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-19 06:00:24,353 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-19 06:00:24,353 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-19 06:00:24,375 INFO  L276                IsEmpty]: Start isEmpty. Operand 136 states.
[2020-08-19 06:00:24,383 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2020-08-19 06:00:24,384 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:24,385 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]
[2020-08-19 06:00:24,386 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:24,392 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:24,392 INFO  L82        PathProgramCache]: Analyzing trace with hash 173387410, now seen corresponding path program 1 times
[2020-08-19 06:00:24,401 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:24,402 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821562122]
[2020-08-19 06:00:24,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:24,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:24,731 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 06:00:24,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:24,741 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 06:00:24,742 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821562122]
[2020-08-19 06:00:24,744 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 06:00:24,744 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-08-19 06:00:24,745 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222196342]
[2020-08-19 06:00:24,750 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-08-19 06:00:24,751 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 06:00:24,765 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-08-19 06:00:24,766 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-08-19 06:00:24,768 INFO  L87              Difference]: Start difference. First operand 136 states. Second operand 5 states.
[2020-08-19 06:00:25,031 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 06:00:25,032 INFO  L93              Difference]: Finished difference Result 263 states and 438 transitions.
[2020-08-19 06:00:25,032 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-08-19 06:00:25,034 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 29
[2020-08-19 06:00:25,034 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 06:00:25,046 INFO  L225             Difference]: With dead ends: 263
[2020-08-19 06:00:25,047 INFO  L226             Difference]: Without dead ends: 120
[2020-08-19 06:00:25,051 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-08-19 06:00:25,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2020-08-19 06:00:25,094 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120.
[2020-08-19 06:00:25,095 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 120 states.
[2020-08-19 06:00:25,098 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 177 transitions.
[2020-08-19 06:00:25,099 INFO  L78                 Accepts]: Start accepts. Automaton has 120 states and 177 transitions. Word has length 29
[2020-08-19 06:00:25,099 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 06:00:25,100 INFO  L479      AbstractCegarLoop]: Abstraction has 120 states and 177 transitions.
[2020-08-19 06:00:25,100 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-08-19 06:00:25,100 INFO  L276                IsEmpty]: Start isEmpty. Operand 120 states and 177 transitions.
[2020-08-19 06:00:25,102 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2020-08-19 06:00:25,102 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:25,102 INFO  L422         BasicCegarLoop]: trace histogram [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]
[2020-08-19 06:00:25,102 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-19 06:00:25,103 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:25,103 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:25,103 INFO  L82        PathProgramCache]: Analyzing trace with hash -1901611800, now seen corresponding path program 1 times
[2020-08-19 06:00:25,103 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:25,104 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880620080]
[2020-08-19 06:00:25,104 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:25,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:25,196 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 06:00:25,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:25,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 06:00:25,202 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880620080]
[2020-08-19 06:00:25,202 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 06:00:25,202 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-19 06:00:25,203 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258671541]
[2020-08-19 06:00:25,205 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-19 06:00:25,205 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 06:00:25,206 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-19 06:00:25,206 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:25,206 INFO  L87              Difference]: Start difference. First operand 120 states and 177 transitions. Second operand 3 states.
[2020-08-19 06:00:25,371 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 06:00:25,371 INFO  L93              Difference]: Finished difference Result 243 states and 365 transitions.
[2020-08-19 06:00:25,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-19 06:00:25,372 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 42
[2020-08-19 06:00:25,372 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 06:00:25,374 INFO  L225             Difference]: With dead ends: 243
[2020-08-19 06:00:25,374 INFO  L226             Difference]: Without dead ends: 138
[2020-08-19 06:00:25,376 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:25,376 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 138 states.
[2020-08-19 06:00:25,389 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135.
[2020-08-19 06:00:25,389 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 135 states.
[2020-08-19 06:00:25,390 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 197 transitions.
[2020-08-19 06:00:25,391 INFO  L78                 Accepts]: Start accepts. Automaton has 135 states and 197 transitions. Word has length 42
[2020-08-19 06:00:25,391 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 06:00:25,391 INFO  L479      AbstractCegarLoop]: Abstraction has 135 states and 197 transitions.
[2020-08-19 06:00:25,391 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-19 06:00:25,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 135 states and 197 transitions.
[2020-08-19 06:00:25,393 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2020-08-19 06:00:25,393 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:25,394 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 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]
[2020-08-19 06:00:25,394 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-19 06:00:25,394 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:25,394 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:25,394 INFO  L82        PathProgramCache]: Analyzing trace with hash 578664657, now seen corresponding path program 1 times
[2020-08-19 06:00:25,395 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:25,395 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049949442]
[2020-08-19 06:00:25,395 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:25,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:25,504 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 06:00:25,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:25,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-08-19 06:00:25,511 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049949442]
[2020-08-19 06:00:25,511 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 06:00:25,511 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-19 06:00:25,512 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917816879]
[2020-08-19 06:00:25,513 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-19 06:00:25,513 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 06:00:25,513 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-19 06:00:25,514 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:25,514 INFO  L87              Difference]: Start difference. First operand 135 states and 197 transitions. Second operand 3 states.
[2020-08-19 06:00:25,653 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 06:00:25,653 INFO  L93              Difference]: Finished difference Result 276 states and 411 transitions.
[2020-08-19 06:00:25,653 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-19 06:00:25,654 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 56
[2020-08-19 06:00:25,654 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 06:00:25,656 INFO  L225             Difference]: With dead ends: 276
[2020-08-19 06:00:25,656 INFO  L226             Difference]: Without dead ends: 156
[2020-08-19 06:00:25,657 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:25,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2020-08-19 06:00:25,669 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152.
[2020-08-19 06:00:25,670 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 152 states.
[2020-08-19 06:00:25,671 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 219 transitions.
[2020-08-19 06:00:25,671 INFO  L78                 Accepts]: Start accepts. Automaton has 152 states and 219 transitions. Word has length 56
[2020-08-19 06:00:25,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 06:00:25,672 INFO  L479      AbstractCegarLoop]: Abstraction has 152 states and 219 transitions.
[2020-08-19 06:00:25,672 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-19 06:00:25,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 152 states and 219 transitions.
[2020-08-19 06:00:25,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2020-08-19 06:00:25,675 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:25,675 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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]
[2020-08-19 06:00:25,675 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-19 06:00:25,675 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:25,676 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:25,676 INFO  L82        PathProgramCache]: Analyzing trace with hash -1321922521, now seen corresponding path program 1 times
[2020-08-19 06:00:25,676 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:25,676 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201126375]
[2020-08-19 06:00:25,677 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:25,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:25,751 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 06:00:25,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:25,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2020-08-19 06:00:25,763 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201126375]
[2020-08-19 06:00:25,765 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 06:00:25,765 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-19 06:00:25,766 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417314566]
[2020-08-19 06:00:25,766 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-19 06:00:25,766 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 06:00:25,767 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-19 06:00:25,767 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:25,767 INFO  L87              Difference]: Start difference. First operand 152 states and 219 transitions. Second operand 3 states.
[2020-08-19 06:00:25,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 06:00:25,981 INFO  L93              Difference]: Finished difference Result 340 states and 508 transitions.
[2020-08-19 06:00:25,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-19 06:00:25,982 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 73
[2020-08-19 06:00:25,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 06:00:25,984 INFO  L225             Difference]: With dead ends: 340
[2020-08-19 06:00:25,984 INFO  L226             Difference]: Without dead ends: 202
[2020-08-19 06:00:25,986 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:25,986 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-08-19 06:00:25,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 193.
[2020-08-19 06:00:25,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 193 states.
[2020-08-19 06:00:26,003 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 269 transitions.
[2020-08-19 06:00:26,003 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 269 transitions. Word has length 73
[2020-08-19 06:00:26,004 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 06:00:26,004 INFO  L479      AbstractCegarLoop]: Abstraction has 193 states and 269 transitions.
[2020-08-19 06:00:26,004 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-19 06:00:26,004 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 269 transitions.
[2020-08-19 06:00:26,007 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2020-08-19 06:00:26,007 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:26,007 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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]
[2020-08-19 06:00:26,012 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-19 06:00:26,012 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:26,012 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:26,012 INFO  L82        PathProgramCache]: Analyzing trace with hash 1167606441, now seen corresponding path program 1 times
[2020-08-19 06:00:26,012 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:26,013 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808676573]
[2020-08-19 06:00:26,013 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:26,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:26,124 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 06:00:26,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:26,134 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2020-08-19 06:00:26,135 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808676573]
[2020-08-19 06:00:26,135 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 06:00:26,136 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-19 06:00:26,136 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209004618]
[2020-08-19 06:00:26,137 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-19 06:00:26,138 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 06:00:26,138 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-19 06:00:26,138 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:26,139 INFO  L87              Difference]: Start difference. First operand 193 states and 269 transitions. Second operand 3 states.
[2020-08-19 06:00:26,269 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 06:00:26,269 INFO  L93              Difference]: Finished difference Result 396 states and 562 transitions.
[2020-08-19 06:00:26,270 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-19 06:00:26,270 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 73
[2020-08-19 06:00:26,270 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 06:00:26,272 INFO  L225             Difference]: With dead ends: 396
[2020-08-19 06:00:26,272 INFO  L226             Difference]: Without dead ends: 218
[2020-08-19 06:00:26,273 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:26,274 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2020-08-19 06:00:26,282 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 212.
[2020-08-19 06:00:26,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 212 states.
[2020-08-19 06:00:26,284 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 293 transitions.
[2020-08-19 06:00:26,284 INFO  L78                 Accepts]: Start accepts. Automaton has 212 states and 293 transitions. Word has length 73
[2020-08-19 06:00:26,284 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 06:00:26,284 INFO  L479      AbstractCegarLoop]: Abstraction has 212 states and 293 transitions.
[2020-08-19 06:00:26,285 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-19 06:00:26,285 INFO  L276                IsEmpty]: Start isEmpty. Operand 212 states and 293 transitions.
[2020-08-19 06:00:26,286 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2020-08-19 06:00:26,286 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:26,287 INFO  L422         BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 06:00:26,287 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-08-19 06:00:26,287 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:26,287 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:26,288 INFO  L82        PathProgramCache]: Analyzing trace with hash -1996022152, now seen corresponding path program 1 times
[2020-08-19 06:00:26,288 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:26,288 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065677866]
[2020-08-19 06:00:26,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:26,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:26,340 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 06:00:26,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:26,348 INFO  L134       CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2020-08-19 06:00:26,349 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065677866]
[2020-08-19 06:00:26,349 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 06:00:26,349 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-19 06:00:26,349 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101628887]
[2020-08-19 06:00:26,350 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-19 06:00:26,350 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 06:00:26,350 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-19 06:00:26,351 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:26,351 INFO  L87              Difference]: Start difference. First operand 212 states and 293 transitions. Second operand 3 states.
[2020-08-19 06:00:26,481 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 06:00:26,481 INFO  L93              Difference]: Finished difference Result 433 states and 609 transitions.
[2020-08-19 06:00:26,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-19 06:00:26,482 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 90
[2020-08-19 06:00:26,482 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 06:00:26,484 INFO  L225             Difference]: With dead ends: 433
[2020-08-19 06:00:26,484 INFO  L226             Difference]: Without dead ends: 236
[2020-08-19 06:00:26,485 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:26,485 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2020-08-19 06:00:26,492 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233.
[2020-08-19 06:00:26,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 233 states.
[2020-08-19 06:00:26,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 319 transitions.
[2020-08-19 06:00:26,494 INFO  L78                 Accepts]: Start accepts. Automaton has 233 states and 319 transitions. Word has length 90
[2020-08-19 06:00:26,494 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 06:00:26,494 INFO  L479      AbstractCegarLoop]: Abstraction has 233 states and 319 transitions.
[2020-08-19 06:00:26,495 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-19 06:00:26,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 233 states and 319 transitions.
[2020-08-19 06:00:26,496 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2020-08-19 06:00:26,496 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:26,496 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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]
[2020-08-19 06:00:26,497 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-08-19 06:00:26,497 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:26,497 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:26,497 INFO  L82        PathProgramCache]: Analyzing trace with hash 1747187888, now seen corresponding path program 1 times
[2020-08-19 06:00:26,498 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:26,498 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59308611]
[2020-08-19 06:00:26,498 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:26,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:26,579 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 06:00:26,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 06:00:26,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2020-08-19 06:00:26,598 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59308611]
[2020-08-19 06:00:26,598 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 06:00:26,598 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-19 06:00:26,598 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157043539]
[2020-08-19 06:00:26,599 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-19 06:00:26,599 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 06:00:26,599 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-19 06:00:26,600 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:26,600 INFO  L87              Difference]: Start difference. First operand 233 states and 319 transitions. Second operand 3 states.
[2020-08-19 06:00:26,639 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 06:00:26,639 INFO  L93              Difference]: Finished difference Result 667 states and 918 transitions.
[2020-08-19 06:00:26,640 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-08-19 06:00:26,640 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 110
[2020-08-19 06:00:26,640 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 06:00:26,643 INFO  L225             Difference]: With dead ends: 667
[2020-08-19 06:00:26,643 INFO  L226             Difference]: Without dead ends: 449
[2020-08-19 06:00:26,644 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-19 06:00:26,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 449 states.
[2020-08-19 06:00:26,656 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449.
[2020-08-19 06:00:26,656 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 449 states.
[2020-08-19 06:00:26,659 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 615 transitions.
[2020-08-19 06:00:26,659 INFO  L78                 Accepts]: Start accepts. Automaton has 449 states and 615 transitions. Word has length 110
[2020-08-19 06:00:26,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 06:00:26,659 INFO  L479      AbstractCegarLoop]: Abstraction has 449 states and 615 transitions.
[2020-08-19 06:00:26,660 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-19 06:00:26,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 449 states and 615 transitions.
[2020-08-19 06:00:26,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2020-08-19 06:00:26,661 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 06:00:26,661 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 06:00:26,661 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-08-19 06:00:26,662 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 06:00:26,662 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 06:00:26,662 INFO  L82        PathProgramCache]: Analyzing trace with hash 494924287, now seen corresponding path program 1 times
[2020-08-19 06:00:26,662 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 06:00:26,663 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234354663]
[2020-08-19 06:00:26,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 06:00:26,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-19 06:00:26,702 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-19 06:00:26,702 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-08-19 06:00:26,707 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-08-19 06:00:26,736 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 06:00:26 BoogieIcfgContainer
[2020-08-19 06:00:26,736 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-19 06:00:26,739 INFO  L168              Benchmark]: Toolchain (without parser) took 3760.43 ms. Allocated memory was 146.3 MB in the beginning and 248.0 MB in the end (delta: 101.7 MB). Free memory was 101.3 MB in the beginning and 174.6 MB in the end (delta: -73.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
[2020-08-19 06:00:26,740 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
[2020-08-19 06:00:26,741 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 498.64 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 177.4 MB in the end (delta: -76.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-08-19 06:00:26,742 INFO  L168              Benchmark]: Boogie Preprocessor took 55.09 ms. Allocated memory is still 202.4 MB. Free memory was 177.4 MB in the beginning and 175.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-08-19 06:00:26,743 INFO  L168              Benchmark]: RCFGBuilder took 751.85 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 126.8 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB.
[2020-08-19 06:00:26,743 INFO  L168              Benchmark]: TraceAbstraction took 2450.06 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 126.8 MB in the beginning and 174.6 MB in the end (delta: -47.8 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-08-19 06:00:26,747 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 498.64 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.9 MB in the beginning and 177.4 MB in the end (delta: -76.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 55.09 ms. Allocated memory is still 202.4 MB. Free memory was 177.4 MB in the beginning and 175.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 751.85 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 126.8 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 2450.06 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 126.8 MB in the beginning and 174.6 MB in the end (delta: -47.8 MB). There was no memory consumed. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L553]              int s ;
[L557]              s = 12292
[L558]  CALL        ssl3_connect(s)
[L11]               int s__info_callback = __VERIFIER_nondet_int() ;
[L12]               int s__in_handshake = __VERIFIER_nondet_int() ;
[L13]               int s__state ;
[L14]               int s__new_session ;
[L15]               int s__server ;
[L16]               int s__version = __VERIFIER_nondet_int() ;
[L17]               int s__type ;
[L18]               int s__init_num ;
[L19]               int s__bbio = __VERIFIER_nondet_int() ;
[L20]               int s__wbio = __VERIFIER_nondet_int() ;
[L21]               int s__hit = __VERIFIER_nondet_int() ;
[L22]               int s__rwstate ;
[L23]               int s__init_buf___0 = __VERIFIER_nondet_int() ;
[L24]               int s__debug = __VERIFIER_nondet_int() ;
[L25]               int s__shutdown ;
[L26]               int s__ctx__info_callback = __VERIFIER_nondet_int() ;
[L27]               int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ;
[L28]               int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ;
[L29]               int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ;
[L30]               int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ;
[L31]               int s__s3__change_cipher_spec ;
[L32]               int s__s3__flags = __VERIFIER_nondet_int() ;
[L33]               int s__s3__delay_buf_pop_ret ;
[L34]               int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ;
[L35]               int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ;
[L36]               int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ;
[L37]               int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ;
[L38]               int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ;
[L39]               int s__s3__tmp__next_state___0 ;
[L40]               int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ;
[L41]               int s__session__cipher ;
[L42]               int s__session__compress_meth ;
[L43]               int buf ;
[L44]               unsigned long tmp ;
[L45]               unsigned long l ;
[L46]               int num1 = __VERIFIER_nondet_int() ;
[L47]               int cb ;
[L48]               int ret ;
[L49]               int new_state ;
[L50]               int state ;
[L51]               int skip ;
[L52]               int tmp___0 ;
[L53]               int tmp___1 = __VERIFIER_nondet_int() ;
[L54]               int tmp___2 = __VERIFIER_nondet_int() ;
[L55]               int tmp___3 = __VERIFIER_nondet_int() ;
[L56]               int tmp___4 = __VERIFIER_nondet_int() ;
[L57]               int tmp___5 = __VERIFIER_nondet_int() ;
[L58]               int tmp___6 = __VERIFIER_nondet_int() ;
[L59]               int tmp___7 = __VERIFIER_nondet_int() ;
[L60]               int tmp___8 = __VERIFIER_nondet_int() ;
[L61]               int tmp___9 = __VERIFIER_nondet_int() ;
[L62]               int blastFlag ;
[L63]               int __cil_tmp55 ;
[L64]               unsigned long __cil_tmp56 ;
[L65]               long __cil_tmp57 ;
[L66]               long __cil_tmp58 ;
[L67]               long __cil_tmp59 ;
[L68]               long __cil_tmp60 ;
[L69]               long __cil_tmp61 ;
[L70]               long __cil_tmp62 ;
[L71]               long __cil_tmp63 ;
[L72]               long __cil_tmp64 ;
[L73]               long __cil_tmp65 ;
[L77]               s__state = initial_state
[L78]               blastFlag = 0
[L79]               tmp = __VERIFIER_nondet_int()
[L80]               cb = 0
[L81]               ret = -1
[L82]               skip = 0
[L83]               tmp___0 = 0
[L84]   COND TRUE   s__info_callback != 0
[L85]               cb = s__info_callback
[L91]               s__in_handshake ++
[L92]   COND FALSE  !(tmp___1 + 12288)
[L98]   COND TRUE   1
[L100]              state = s__state
[L101]  COND TRUE   s__state == 12292
[L203]              s__new_session = 1
[L204]              s__state = 4096
[L205]              s__ctx__stats__sess_connect_renegotiate ++
[L210]              s__server = 0
[L211]  COND TRUE   cb != 0
[L215]              __cil_tmp55 = s__version + 65280
[L216]  COND FALSE  !(__cil_tmp55 != 768)
[L221]              s__type = 4096
[L222]  COND FALSE  !(s__init_buf___0 == 0)
[L234]  COND FALSE  !(! tmp___4)
[L238]  COND FALSE  !(! tmp___5)
[L242]              s__state = 4368
[L243]              s__ctx__stats__sess_connect ++
[L244]              s__init_num = 0
[L520]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L537]              skip = 0
[L98]   COND TRUE   1
[L100]              state = s__state
[L101]  COND FALSE  !(s__state == 12292)
[L104]  COND FALSE  !(s__state == 16384)
[L107]  COND FALSE  !(s__state == 4096)
[L110]  COND FALSE  !(s__state == 20480)
[L113]  COND FALSE  !(s__state == 4099)
[L116]  COND TRUE   s__state == 4368
[L248]              s__shutdown = 0
[L249]              ret = __VERIFIER_nondet_int()
[L250]  COND TRUE   blastFlag == 0
[L251]              blastFlag = 1
[L253]  COND FALSE  !(ret <= 0)
[L256]              s__state = 4384
[L257]              s__init_num = 0
[L258]  COND TRUE   s__bbio != s__wbio
[L520]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L537]              skip = 0
[L98]   COND TRUE   1
[L100]              state = s__state
[L101]  COND FALSE  !(s__state == 12292)
[L104]  COND FALSE  !(s__state == 16384)
[L107]  COND FALSE  !(s__state == 4096)
[L110]  COND FALSE  !(s__state == 20480)
[L113]  COND FALSE  !(s__state == 4099)
[L116]  COND FALSE  !(s__state == 4368)
[L119]  COND FALSE  !(s__state == 4369)
[L122]  COND TRUE   s__state == 4384
[L264]              ret = __VERIFIER_nondet_int()
[L265]  COND TRUE   blastFlag == 1
[L266]              blastFlag = 2
[L268]  COND FALSE  !(ret <= 0)
[L271]  COND FALSE  !(\read(s__hit))
[L274]              s__state = 4400
[L276]              s__init_num = 0
[L520]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L537]              skip = 0
[L98]   COND TRUE   1
[L100]              state = s__state
[L101]  COND FALSE  !(s__state == 12292)
[L104]  COND FALSE  !(s__state == 16384)
[L107]  COND FALSE  !(s__state == 4096)
[L110]  COND FALSE  !(s__state == 20480)
[L113]  COND FALSE  !(s__state == 4099)
[L116]  COND FALSE  !(s__state == 4368)
[L119]  COND FALSE  !(s__state == 4369)
[L122]  COND FALSE  !(s__state == 4384)
[L125]  COND FALSE  !(s__state == 4385)
[L128]  COND TRUE   s__state == 4400
[L281]              __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms
[L282]  COND FALSE  !(__cil_tmp56 + 256UL)
[L285]              ret = __VERIFIER_nondet_int()
[L286]  COND TRUE   blastFlag == 2
[L287]              blastFlag = 3
[L293]  COND FALSE  !(ret <= 0)
[L298]              s__state = 4416
[L299]              s__init_num = 0
[L520]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L537]              skip = 0
[L98]   COND TRUE   1
[L100]              state = s__state
[L101]  COND FALSE  !(s__state == 12292)
[L104]  COND FALSE  !(s__state == 16384)
[L107]  COND FALSE  !(s__state == 4096)
[L110]  COND FALSE  !(s__state == 20480)
[L113]  COND FALSE  !(s__state == 4099)
[L116]  COND FALSE  !(s__state == 4368)
[L119]  COND FALSE  !(s__state == 4369)
[L122]  COND FALSE  !(s__state == 4384)
[L125]  COND FALSE  !(s__state == 4385)
[L128]  COND FALSE  !(s__state == 4400)
[L131]  COND FALSE  !(s__state == 4401)
[L134]  COND TRUE   s__state == 4416
[L303]              ret = __VERIFIER_nondet_int()
[L304]  COND TRUE   blastFlag == 3
[L305]              blastFlag = 4
[L307]  COND FALSE  !(ret <= 0)
[L310]              s__state = 4432
[L311]              s__init_num = 0
[L312]  COND FALSE  !(! tmp___6)
[L520]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L537]              skip = 0
[L98]   COND TRUE   1
[L100]              state = s__state
[L101]  COND FALSE  !(s__state == 12292)
[L104]  COND FALSE  !(s__state == 16384)
[L107]  COND FALSE  !(s__state == 4096)
[L110]  COND FALSE  !(s__state == 20480)
[L113]  COND FALSE  !(s__state == 4099)
[L116]  COND FALSE  !(s__state == 4368)
[L119]  COND FALSE  !(s__state == 4369)
[L122]  COND FALSE  !(s__state == 4384)
[L125]  COND FALSE  !(s__state == 4385)
[L128]  COND FALSE  !(s__state == 4400)
[L131]  COND FALSE  !(s__state == 4401)
[L134]  COND FALSE  !(s__state == 4416)
[L137]  COND FALSE  !(s__state == 4417)
[L140]  COND TRUE   s__state == 4432
[L319]              ret = __VERIFIER_nondet_int()
[L320]  COND TRUE   blastFlag == 4
[L548]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1269 SDtfs, 460 SDslu, 927 SDs, 0 SdLazy, 625 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 466 ConstructedInterpolants, 0 QuantifiedInterpolants, 55282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 316/316 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 incorrect!
Received shutdown request...