/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 02:37:20,337 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 02:37:20,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 02:37:20,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 02:37:20,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 02:37:20,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 02:37:20,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 02:37:20,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
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[2020-04-18 02:37:20,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 02:37:20,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 02:37:20,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 02:37:20,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 02:37:20,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 02:37:20,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 02:37:20,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 02:37:20,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 02:37:20,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 02:37:20,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 02:37:20,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 02:37:20,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-04-18 02:37:20,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-04-18 02:37:20,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-04-18 02:37:20,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 02:37:20,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 02:37:20,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf
[2020-04-18 02:37:20,465 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 02:37:20,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 02:37:20,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 02:37:20,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 02:37:20,467 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 02:37:20,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 02:37:20,469 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 02:37:20,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 02:37:20,470 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 02:37:20,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 02:37:20,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 02:37:20,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 02:37:20,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 02:37:20,471 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 02:37:20,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 02:37:20,471 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 02:37:20,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 02:37:20,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 02:37:20,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 02:37:20,474 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 02:37:20,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 02:37:20,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 02:37:20,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 02:37:20,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 02:37:20,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 02:37:20,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-18 02:37:20,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 02:37:20,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-04-18 02:37:20,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 02:37:20,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 02:37:20,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 02:37:20,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 02:37:20,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 02:37:20,785 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 02:37:20,786 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 02:37:20,787 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i
[2020-04-18 02:37:20,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fbc73d13/2c0ce821062c4f6d814aeccb7140c9f7/FLAG53c148eee
[2020-04-18 02:37:21,390 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 02:37:21,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i
[2020-04-18 02:37:21,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fbc73d13/2c0ce821062c4f6d814aeccb7140c9f7/FLAG53c148eee
[2020-04-18 02:37:21,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fbc73d13/2c0ce821062c4f6d814aeccb7140c9f7
[2020-04-18 02:37:21,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 02:37:21,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 02:37:21,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 02:37:21,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 02:37:21,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 02:37:21,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:37:21" (1/1) ...
[2020-04-18 02:37:21,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471e8602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:21, skipping insertion in model container
[2020-04-18 02:37:21,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:37:21" (1/1) ...
[2020-04-18 02:37:21,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 02:37:21,818 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 02:37:22,431 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 02:37:22,446 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 02:37:22,521 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 02:37:22,606 INFO L208 MainTranslator]: Completed translation
[2020-04-18 02:37:22,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22 WrapperNode
[2020-04-18 02:37:22,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 02:37:22,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 02:37:22,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 02:37:22,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 02:37:22,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 02:37:22,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 02:37:22,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 02:37:22,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 02:37:22,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (1/1) ...
[2020-04-18 02:37:22,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 02:37:22,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 02:37:22,687 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 02:37:22,687 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 02:37:22,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (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
[2020-04-18 02:37:22,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 02:37:22,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 02:37:22,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 02:37:22,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 02:37:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 02:37:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 02:37:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 02:37:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 02:37:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 02:37:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 02:37:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 02:37:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 02:37:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 02:37:22,763 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-04-18 02:37:23,154 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 02:37:23,154 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-18 02:37:23,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:37:23 BoogieIcfgContainer
[2020-04-18 02:37:23,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 02:37:23,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 02:37:23,160 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 02:37:23,164 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 02:37:23,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:37:21" (1/3) ...
[2020-04-18 02:37:23,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3ca07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:37:23, skipping insertion in model container
[2020-04-18 02:37:23,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:37:22" (2/3) ...
[2020-04-18 02:37:23,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3ca07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:37:23, skipping insertion in model container
[2020-04-18 02:37:23,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:37:23" (3/3) ...
[2020-04-18 02:37:23,167 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i
[2020-04-18 02:37:23,179 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 02:37:23,179 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 02:37:23,187 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-18 02:37:23,188 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 02:37:23,217 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,218 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,218 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,218 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,219 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,219 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,220 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,220 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,220 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,221 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,221 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,221 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,222 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,222 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,222 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,223 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,223 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,223 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,228 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,228 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,228 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,229 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,235 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,236 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,236 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,236 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,245 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,245 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,245 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,246 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 02:37:23,262 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-18 02:37:23,281 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 02:37:23,282 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 02:37:23,282 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 02:37:23,282 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 02:37:23,282 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 02:37:23,283 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 02:37:23,283 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 02:37:23,283 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 02:37:23,298 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow
[2020-04-18 02:37:23,301 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 02:37:23,344 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 02:37:23,344 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 02:37:23,350 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-18 02:37:23,353 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-04-18 02:37:23,376 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-04-18 02:37:23,376 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-18 02:37:23,377 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-18 02:37:23,380 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260
[2020-04-18 02:37:23,381 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 02:37:24,755 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42
[2020-04-18 02:37:24,951 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2768
[2020-04-18 02:37:24,952 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58
[2020-04-18 02:37:24,956 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow
[2020-04-18 02:37:24,984 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-04-18 02:37:24,986 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-04-18 02:37:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 02:37:24,996 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:24,996 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:24,997 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:25,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:25,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times
[2020-04-18 02:37:25,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:25,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387839240]
[2020-04-18 02:37:25,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:25,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387839240]
[2020-04-18 02:37:25,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:25,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-04-18 02:37:25,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592950794]
[2020-04-18 02:37:25,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 02:37:25,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:25,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 02:37:25,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 02:37:25,344 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-04-18 02:37:25,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:25,410 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions.
[2020-04-18 02:37:25,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 02:37:25,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-04-18 02:37:25,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:25,445 INFO L225 Difference]: With dead ends: 282
[2020-04-18 02:37:25,445 INFO L226 Difference]: Without dead ends: 218
[2020-04-18 02:37:25,447 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 02:37:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2020-04-18 02:37:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218.
[2020-04-18 02:37:25,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states.
[2020-04-18 02:37:25,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions.
[2020-04-18 02:37:25,527 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8
[2020-04-18 02:37:25,528 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:25,528 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions.
[2020-04-18 02:37:25,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 02:37:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions.
[2020-04-18 02:37:25,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-18 02:37:25,532 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:25,532 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:25,533 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:25,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:25,533 INFO L82 PathProgramCache]: Analyzing trace with hash -225372369, now seen corresponding path program 1 times
[2020-04-18 02:37:25,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:25,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304624741]
[2020-04-18 02:37:25,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:25,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304624741]
[2020-04-18 02:37:25,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:25,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 02:37:25,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602198501]
[2020-04-18 02:37:25,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 02:37:25,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:25,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 02:37:25,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 02:37:25,645 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states.
[2020-04-18 02:37:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:25,675 INFO L93 Difference]: Finished difference Result 278 states and 745 transitions.
[2020-04-18 02:37:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-18 02:37:25,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9
[2020-04-18 02:37:25,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:25,678 INFO L225 Difference]: With dead ends: 278
[2020-04-18 02:37:25,678 INFO L226 Difference]: Without dead ends: 182
[2020-04-18 02:37:25,679 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-18 02:37:25,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2020-04-18 02:37:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182.
[2020-04-18 02:37:25,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states.
[2020-04-18 02:37:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 481 transitions.
[2020-04-18 02:37:25,697 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 481 transitions. Word has length 9
[2020-04-18 02:37:25,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:25,697 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 481 transitions.
[2020-04-18 02:37:25,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 02:37:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 481 transitions.
[2020-04-18 02:37:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 02:37:25,699 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:25,699 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:25,699 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:25,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1603399558, now seen corresponding path program 1 times
[2020-04-18 02:37:25,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:25,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166831032]
[2020-04-18 02:37:25,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:25,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166831032]
[2020-04-18 02:37:25,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:25,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 02:37:25,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147281084]
[2020-04-18 02:37:25,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 02:37:25,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:25,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 02:37:25,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 02:37:25,767 INFO L87 Difference]: Start difference. First operand 182 states and 481 transitions. Second operand 4 states.
[2020-04-18 02:37:25,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:25,798 INFO L93 Difference]: Finished difference Result 218 states and 556 transitions.
[2020-04-18 02:37:25,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-18 02:37:25,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2020-04-18 02:37:25,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:25,804 INFO L225 Difference]: With dead ends: 218
[2020-04-18 02:37:25,804 INFO L226 Difference]: Without dead ends: 146
[2020-04-18 02:37:25,805 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-18 02:37:25,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2020-04-18 02:37:25,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146.
[2020-04-18 02:37:25,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states.
[2020-04-18 02:37:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions.
[2020-04-18 02:37:25,818 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 10
[2020-04-18 02:37:25,818 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:25,818 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions.
[2020-04-18 02:37:25,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 02:37:25,819 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions.
[2020-04-18 02:37:25,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-04-18 02:37:25,820 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:25,820 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:25,820 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:25,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1834242640, now seen corresponding path program 1 times
[2020-04-18 02:37:25,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:25,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849914725]
[2020-04-18 02:37:25,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:25,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849914725]
[2020-04-18 02:37:25,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:25,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 02:37:25,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176546588]
[2020-04-18 02:37:25,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 02:37:25,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:25,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 02:37:25,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 02:37:25,903 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states.
[2020-04-18 02:37:25,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:25,946 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions.
[2020-04-18 02:37:25,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-18 02:37:25,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2020-04-18 02:37:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:25,948 INFO L225 Difference]: With dead ends: 165
[2020-04-18 02:37:25,949 INFO L226 Difference]: Without dead ends: 125
[2020-04-18 02:37:25,949 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-18 02:37:25,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2020-04-18 02:37:25,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125.
[2020-04-18 02:37:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states.
[2020-04-18 02:37:25,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions.
[2020-04-18 02:37:25,958 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11
[2020-04-18 02:37:25,959 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:25,959 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions.
[2020-04-18 02:37:25,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 02:37:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions.
[2020-04-18 02:37:25,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 02:37:25,960 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:25,961 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:25,961 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:25,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1941611660, now seen corresponding path program 1 times
[2020-04-18 02:37:25,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:25,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703473438]
[2020-04-18 02:37:25,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:26,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703473438]
[2020-04-18 02:37:26,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:26,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 02:37:26,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260907303]
[2020-04-18 02:37:26,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-18 02:37:26,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:26,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-18 02:37:26,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-18 02:37:26,036 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states.
[2020-04-18 02:37:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:26,086 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions.
[2020-04-18 02:37:26,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-04-18 02:37:26,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12
[2020-04-18 02:37:26,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:26,087 INFO L225 Difference]: With dead ends: 122
[2020-04-18 02:37:26,087 INFO L226 Difference]: Without dead ends: 97
[2020-04-18 02:37:26,088 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-18 02:37:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2020-04-18 02:37:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97.
[2020-04-18 02:37:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states.
[2020-04-18 02:37:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions.
[2020-04-18 02:37:26,094 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12
[2020-04-18 02:37:26,094 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:26,094 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions.
[2020-04-18 02:37:26,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-18 02:37:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions.
[2020-04-18 02:37:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-04-18 02:37:26,096 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:26,096 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:26,096 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:26,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1911316559, now seen corresponding path program 1 times
[2020-04-18 02:37:26,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:26,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759327064]
[2020-04-18 02:37:26,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:26,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759327064]
[2020-04-18 02:37:26,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:26,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-18 02:37:26,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115272272]
[2020-04-18 02:37:26,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-04-18 02:37:26,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:26,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-04-18 02:37:26,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-04-18 02:37:26,194 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states.
[2020-04-18 02:37:26,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:26,265 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions.
[2020-04-18 02:37:26,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-04-18 02:37:26,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14
[2020-04-18 02:37:26,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:26,266 INFO L225 Difference]: With dead ends: 92
[2020-04-18 02:37:26,267 INFO L226 Difference]: Without dead ends: 84
[2020-04-18 02:37:26,267 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-04-18 02:37:26,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2020-04-18 02:37:26,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2020-04-18 02:37:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states.
[2020-04-18 02:37:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions.
[2020-04-18 02:37:26,272 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14
[2020-04-18 02:37:26,272 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:26,272 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions.
[2020-04-18 02:37:26,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-04-18 02:37:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions.
[2020-04-18 02:37:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 02:37:26,274 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:26,274 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:26,274 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:26,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:26,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1074918836, now seen corresponding path program 1 times
[2020-04-18 02:37:26,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:26,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743324749]
[2020-04-18 02:37:26,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:26,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743324749]
[2020-04-18 02:37:26,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:26,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 02:37:26,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442857759]
[2020-04-18 02:37:26,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 02:37:26,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:26,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 02:37:26,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 02:37:26,319 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states.
[2020-04-18 02:37:26,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:26,334 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions.
[2020-04-18 02:37:26,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-18 02:37:26,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-04-18 02:37:26,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:26,336 INFO L225 Difference]: With dead ends: 97
[2020-04-18 02:37:26,336 INFO L226 Difference]: Without dead ends: 36
[2020-04-18 02:37:26,336 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-18 02:37:26,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-04-18 02:37:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2020-04-18 02:37:26,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2020-04-18 02:37:26,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions.
[2020-04-18 02:37:26,339 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17
[2020-04-18 02:37:26,339 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:26,339 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions.
[2020-04-18 02:37:26,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 02:37:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions.
[2020-04-18 02:37:26,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-04-18 02:37:26,340 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 02:37:26,340 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 02:37:26,340 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 02:37:26,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 02:37:26,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1637147722, now seen corresponding path program 2 times
[2020-04-18 02:37:26,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 02:37:26,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966817000]
[2020-04-18 02:37:26,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 02:37:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 02:37:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-18 02:37:26,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966817000]
[2020-04-18 02:37:26,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 02:37:26,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 02:37:26,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266466261]
[2020-04-18 02:37:26,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-18 02:37:26,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-18 02:37:26,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-18 02:37:26,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 02:37:26,378 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states.
[2020-04-18 02:37:26,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 02:37:26,392 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions.
[2020-04-18 02:37:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-18 02:37:26,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-04-18 02:37:26,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 02:37:26,393 INFO L225 Difference]: With dead ends: 35
[2020-04-18 02:37:26,393 INFO L226 Difference]: Without dead ends: 0
[2020-04-18 02:37:26,393 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-18 02:37:26,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 02:37:26,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 02:37:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 02:37:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 02:37:26,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-04-18 02:37:26,394 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 02:37:26,395 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 02:37:26,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-18 02:37:26,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 02:37:26,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 02:37:26,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:37:26 BasicIcfg
[2020-04-18 02:37:26,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 02:37:26,402 INFO L168 Benchmark]: Toolchain (without parser) took 4682.28 ms. Allocated memory was 146.3 MB in the beginning and 244.3 MB in the end (delta: 98.0 MB). Free memory was 102.3 MB in the beginning and 177.3 MB in the end (delta: -74.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB.
[2020-04-18 02:37:26,402 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-18 02:37:26,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 863.96 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.5 MB in the beginning and 159.9 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
[2020-04-18 02:37:26,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.24 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 156.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB.
[2020-04-18 02:37:26,405 INFO L168 Benchmark]: Boogie Preprocessor took 28.59 ms. Allocated memory is still 205.0 MB. Free memory was 156.9 MB in the beginning and 156.0 MB in the end (delta: 970.9 kB). Peak memory consumption was 970.9 kB. Max. memory is 7.1 GB.
[2020-04-18 02:37:26,405 INFO L168 Benchmark]: RCFGBuilder took 472.08 ms. Allocated memory is still 205.0 MB. Free memory was 156.0 MB in the beginning and 133.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
[2020-04-18 02:37:26,406 INFO L168 Benchmark]: TraceAbstraction took 3239.46 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 132.8 MB in the beginning and 177.3 MB in the end (delta: -44.5 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-18 02:37:26,410 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.00 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 863.96 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.5 MB in the beginning and 159.9 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 50.24 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 156.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 28.59 ms. Allocated memory is still 205.0 MB. Free memory was 156.9 MB in the beginning and 156.0 MB in the end (delta: 970.9 kB). Peak memory consumption was 970.9 kB. Max. memory is 7.1 GB.
* RCFGBuilder took 472.08 ms. Allocated memory is still 205.0 MB. Free memory was 156.0 MB in the beginning and 133.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3239.46 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 132.8 MB in the beginning and 177.3 MB in the end (delta: -44.5 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 661 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2768 CheckedPairsTotal, 58 TotalNumberOfCompositions
- PositiveResult [Line: 7]: 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
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 160 SDtfs, 154 SDslu, 222 SDs, 0 SdLazy, 117 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...