/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 11:52:41,175 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 11:52:41,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 11:52:41,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 11:52:41,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 11:52:41,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 11:52:41,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 11:52:41,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 11:52:41,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 11:52:41,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-04-18 11:52:41,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-04-18 11:52:41,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-04-18 11:52:41,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 11:52:41,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 11:52:41,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 11:52:41,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 11:52:41,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 11:52:41,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 11:52:41,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 11:52:41,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 11:52:41,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 11:52:41,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 11:52:41,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 11:52:41,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 11:52:41,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 11:52:41,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 11:52:41,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 11:52:41,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-04-18 11:52:41,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-18 11:52:41,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-18 11:52:41,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-18 11:52:41,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-04-18 11:52:41,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-18 11:52:41,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 11:52:41,253 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-McrStrategy.epf
[2020-04-18 11:52:41,271 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 11:52:41,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 11:52:41,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 11:52:41,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 11:52:41,273 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 11:52:41,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 11:52:41,273 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 11:52:41,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 11:52:41,273 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 11:52:41,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 11:52:41,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 11:52:41,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 11:52:41,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 11:52:41,277 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 11:52:41,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 11:52:41,277 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 11:52:41,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 11:52:41,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 11:52:41,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 11:52:41,278 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 11:52:41,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 11:52:41,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 11:52:41,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 11:52:41,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 11:52:41,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 11:52:41,279 INFO L138 SettingsManager]: * Trace refinement strategy=MCR
[2020-04-18 11:52:41,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 11:52:41,280 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-04-18 11:52:41,280 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL
[2020-04-18 11:52:41,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 11:52:41,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 11:52:41,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 11:52:41,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 11:52:41,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 11:52:41,601 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 11:52:41,602 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 11:52:41,604 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i
[2020-04-18 11:52:41,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d676a03da/aac3f6ae898e41db896e00af2c75bdf3/FLAGd93743658
[2020-04-18 11:52:42,218 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 11:52:42,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i
[2020-04-18 11:52:42,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d676a03da/aac3f6ae898e41db896e00af2c75bdf3/FLAGd93743658
[2020-04-18 11:52:42,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d676a03da/aac3f6ae898e41db896e00af2c75bdf3
[2020-04-18 11:52:42,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 11:52:42,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 11:52:42,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 11:52:42,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 11:52:42,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 11:52:42,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:42" (1/1) ...
[2020-04-18 11:52:42,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3b978a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:42, skipping insertion in model container
[2020-04-18 11:52:42,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:42" (1/1) ...
[2020-04-18 11:52:42,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 11:52:42,587 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 11:52:43,027 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:52:43,039 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 11:52:43,092 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 11:52:43,177 INFO L208 MainTranslator]: Completed translation
[2020-04-18 11:52:43,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43 WrapperNode
[2020-04-18 11:52:43,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 11:52:43,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 11:52:43,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 11:52:43,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 11:52:43,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 11:52:43,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 11:52:43,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 11:52:43,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 11:52:43,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (1/1) ...
[2020-04-18 11:52:43,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 11:52:43,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 11:52:43,271 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 11:52:43,271 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 11:52:43,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (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 11:52:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-04-18 11:52:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure thr2
[2020-04-18 11:52:43,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2
[2020-04-18 11:52:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2020-04-18 11:52:43,337 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2020-04-18 11:52:43,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 11:52:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 11:52:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 11:52:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 11:52:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 11:52:43,341 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 11:52:43,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-18 11:52:43,716 INFO L295 CfgBuilder]: Removed 12 assume(true) statements.
[2020-04-18 11:52:43,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:43 BoogieIcfgContainer
[2020-04-18 11:52:43,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-18 11:52:43,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-18 11:52:43,721 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-18 11:52:43,724 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-18 11:52:43,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:52:42" (1/3) ...
[2020-04-18 11:52:43,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1823c911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:43, skipping insertion in model container
[2020-04-18 11:52:43,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:43" (2/3) ...
[2020-04-18 11:52:43,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1823c911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:43, skipping insertion in model container
[2020-04-18 11:52:43,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:43" (3/3) ...
[2020-04-18 11:52:43,728 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i
[2020-04-18 11:52:43,738 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-18 11:52:43,738 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-18 11:52:43,745 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-04-18 11:52:43,746 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-18 11:52:43,771 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,771 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,772 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,772 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,774 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,774 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,775 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,775 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,777 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,777 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,781 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,781 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,781 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,782 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,787 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,788 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,788 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,788 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-18 11:52:43,810 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2020-04-18 11:52:43,826 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-18 11:52:43,826 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-18 11:52:43,827 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-18 11:52:43,827 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-18 11:52:43,827 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-18 11:52:43,827 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-18 11:52:43,827 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-18 11:52:43,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-18 11:52:43,843 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions, 196 flow
[2020-04-18 11:52:43,845 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow
[2020-04-18 11:52:43,890 INFO L129 PetriNetUnfolder]: 21/87 cut-off events.
[2020-04-18 11:52:43,890 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2020-04-18 11:52:43,901 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place.
[2020-04-18 11:52:43,905 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow
[2020-04-18 11:52:43,927 INFO L129 PetriNetUnfolder]: 21/87 cut-off events.
[2020-04-18 11:52:43,928 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2020-04-18 11:52:43,930 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place.
[2020-04-18 11:52:43,936 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160
[2020-04-18 11:52:43,937 INFO L182 etLargeBlockEncoding]: Variable Check.
[2020-04-18 11:52:44,704 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47
[2020-04-18 11:52:44,795 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4337
[2020-04-18 11:52:44,796 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38
[2020-04-18 11:52:44,799 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 59 transitions, 140 flow
[2020-04-18 11:52:44,834 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states.
[2020-04-18 11:52:44,836 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states.
[2020-04-18 11:52:44,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:52:44,845 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:52:44,846 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:52:44,846 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:52:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:44,853 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times
[2020-04-18 11:52:44,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:52:44,861 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [760506693]
[2020-04-18 11:52:44,877 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:44,889 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:52:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states.
[2020-04-18 11:52:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-18 11:52:44,891 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:52:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:44,892 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 2 times
[2020-04-18 11:52:44,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:44,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233922918]
[2020-04-18 11:52:44,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,044 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 11:52:45,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233922918]
[2020-04-18 11:52:45,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:52:45,047 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,047 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,049 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-04-18 11:52:45,049 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:45,055 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:52:45,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-18 11:52:45,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:52:45,061 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states.
[2020-04-18 11:52:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,065 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2020-04-18 11:52:45,065 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions.
[2020-04-18 11:52:45,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:52:45,071 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [760506693]
[2020-04-18 11:52:45,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:52:45,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:52:45,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [760506693]
[2020-04-18 11:52:45,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-04-18 11:52:45,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:52:45,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-18 11:52:45,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:52:45,079 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states.
[2020-04-18 11:52:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,115 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions.
[2020-04-18 11:52:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-04-18 11:52:45,116 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2020-04-18 11:52:45,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:52:45,139 INFO L225 Difference]: With dead ends: 509
[2020-04-18 11:52:45,140 INFO L226 Difference]: Without dead ends: 470
[2020-04-18 11:52:45,142 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-18 11:52:45,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states.
[2020-04-18 11:52:45,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470.
[2020-04-18 11:52:45,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states.
[2020-04-18 11:52:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions.
[2020-04-18 11:52:45,253 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8
[2020-04-18 11:52:45,254 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:52:45,254 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions.
[2020-04-18 11:52:45,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-04-18 11:52:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions.
[2020-04-18 11:52:45,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:52:45,256 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:52:45,256 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:52:45,256 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:52:45,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times
[2020-04-18 11:52:45,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:52:45,257 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1905767143]
[2020-04-18 11:52:45,257 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,258 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions.
[2020-04-18 11:52:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states.
[2020-04-18 11:52:45,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-04-18 11:52:45,259 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:52:45,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 2 times
[2020-04-18 11:52:45,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:45,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258693417]
[2020-04-18 11:52:45,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,339 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 11:52:45,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258693417]
[2020-04-18 11:52:45,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:52:45,341 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,341 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,342 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions.
[2020-04-18 11:52:45,343 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:45,347 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:52:45,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:52:45,348 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states.
[2020-04-18 11:52:45,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,352 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions.
[2020-04-18 11:52:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions.
[2020-04-18 11:52:45,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:52:45,353 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1905767143]
[2020-04-18 11:52:45,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:52:45,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:52:45,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1905767143]
[2020-04-18 11:52:45,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:52:45,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:52:45,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:52:45,356 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states.
[2020-04-18 11:52:45,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,406 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions.
[2020-04-18 11:52:45,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 11:52:45,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2020-04-18 11:52:45,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:52:45,413 INFO L225 Difference]: With dead ends: 481
[2020-04-18 11:52:45,415 INFO L226 Difference]: Without dead ends: 391
[2020-04-18 11:52:45,417 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 11:52:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states.
[2020-04-18 11:52:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373.
[2020-04-18 11:52:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states.
[2020-04-18 11:52:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions.
[2020-04-18 11:52:45,471 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10
[2020-04-18 11:52:45,471 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:52:45,471 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions.
[2020-04-18 11:52:45,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:52:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions.
[2020-04-18 11:52:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:52:45,477 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:52:45,477 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:52:45,477 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:52:45,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,478 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times
[2020-04-18 11:52:45,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:52:45,478 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1332446661]
[2020-04-18 11:52:45,479 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,479 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions.
[2020-04-18 11:52:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states.
[2020-04-18 11:52:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-18 11:52:45,482 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:52:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 2 times
[2020-04-18 11:52:45,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:45,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527577028]
[2020-04-18 11:52:45,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,560 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 11:52:45,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527577028]
[2020-04-18 11:52:45,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-18 11:52:45,562 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,563 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,564 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions.
[2020-04-18 11:52:45,564 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:45,569 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:52:45,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:52:45,570 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states.
[2020-04-18 11:52:45,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,573 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions.
[2020-04-18 11:52:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions.
[2020-04-18 11:52:45,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:52:45,574 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1332446661]
[2020-04-18 11:52:45,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:52:45,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2
[2020-04-18 11:52:45,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1332446661]
[2020-04-18 11:52:45,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-18 11:52:45,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:52:45,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:52:45,576 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states.
[2020-04-18 11:52:45,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,600 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions.
[2020-04-18 11:52:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-18 11:52:45,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12
[2020-04-18 11:52:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:52:45,603 INFO L225 Difference]: With dead ends: 360
[2020-04-18 11:52:45,603 INFO L226 Difference]: Without dead ends: 264
[2020-04-18 11:52:45,604 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 11:52:45,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2020-04-18 11:52:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264.
[2020-04-18 11:52:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states.
[2020-04-18 11:52:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions.
[2020-04-18 11:52:45,616 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12
[2020-04-18 11:52:45,617 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:52:45,617 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions.
[2020-04-18 11:52:45,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-18 11:52:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions.
[2020-04-18 11:52:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 11:52:45,620 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-18 11:52:45,620 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-18 11:52:45,621 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-18 11:52:45,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,621 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times
[2020-04-18 11:52:45,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR
[2020-04-18 11:52:45,622 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2246692]
[2020-04-18 11:52:45,623 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,625 INFO L259 McrAutomatonBuilder]: Finished intersection with 92 states and 163 transitions.
[2020-04-18 11:52:45,626 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states.
[2020-04-18 11:52:45,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 11:52:45,628 INFO L105 Mcr]: ---- MCR iteration 0 ----
[2020-04-18 11:52:45,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2063735169, now seen corresponding path program 2 times
[2020-04-18 11:52:45,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:45,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111863028]
[2020-04-18 11:52:45,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,683 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 11:52:45,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111863028]
[2020-04-18 11:52:45,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:52:45,684 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,686 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,689 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 40 transitions.
[2020-04-18 11:52:45,689 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:45,693 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:52:45,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-18 11:52:45,694 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 3 states.
[2020-04-18 11:52:45,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,705 INFO L93 Difference]: Finished difference Result 124 states and 215 transitions.
[2020-04-18 11:52:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 215 transitions.
[2020-04-18 11:52:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 11:52:45,706 INFO L105 Mcr]: ---- MCR iteration 1 ----
[2020-04-18 11:52:45,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1551174461, now seen corresponding path program 3 times
[2020-04-18 11:52:45,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:45,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257370713]
[2020-04-18 11:52:45,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,766 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 11:52:45,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257370713]
[2020-04-18 11:52:45,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:52:45,767 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,768 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,770 INFO L259 McrAutomatonBuilder]: Finished intersection with 29 states and 36 transitions.
[2020-04-18 11:52:45,771 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:45,777 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times.
[2020-04-18 11:52:45,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-18 11:52:45,778 INFO L87 Difference]: Start difference. First operand 124 states and 215 transitions. Second operand 3 states.
[2020-04-18 11:52:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,789 INFO L93 Difference]: Finished difference Result 171 states and 294 transitions.
[2020-04-18 11:52:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 294 transitions.
[2020-04-18 11:52:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 11:52:45,791 INFO L105 Mcr]: ---- MCR iteration 2 ----
[2020-04-18 11:52:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,791 INFO L82 PathProgramCache]: Analyzing trace with hash 926288199, now seen corresponding path program 4 times
[2020-04-18 11:52:45,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:45,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485923850]
[2020-04-18 11:52:45,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,824 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 11:52:45,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485923850]
[2020-04-18 11:52:45,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:52:45,826 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,827 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,829 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 46 transitions.
[2020-04-18 11:52:45,830 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:45,840 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times.
[2020-04-18 11:52:45,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-18 11:52:45,841 INFO L87 Difference]: Start difference. First operand 171 states and 294 transitions. Second operand 3 states.
[2020-04-18 11:52:45,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,854 INFO L93 Difference]: Finished difference Result 221 states and 374 transitions.
[2020-04-18 11:52:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 374 transitions.
[2020-04-18 11:52:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 11:52:45,855 INFO L105 Mcr]: ---- MCR iteration 3 ----
[2020-04-18 11:52:45,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1636275947, now seen corresponding path program 5 times
[2020-04-18 11:52:45,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:45,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748876264]
[2020-04-18 11:52:45,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,891 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 11:52:45,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748876264]
[2020-04-18 11:52:45,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:52:45,892 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,894 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,898 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 78 transitions.
[2020-04-18 11:52:45,898 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:45,914 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times.
[2020-04-18 11:52:45,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:45,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-04-18 11:52:45,915 INFO L87 Difference]: Start difference. First operand 221 states and 374 transitions. Second operand 3 states.
[2020-04-18 11:52:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:45,920 INFO L93 Difference]: Finished difference Result 231 states and 379 transitions.
[2020-04-18 11:52:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 379 transitions.
[2020-04-18 11:52:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-04-18 11:52:45,921 INFO L105 Mcr]: ---- MCR iteration 4 ----
[2020-04-18 11:52:45,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-18 11:52:45,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 6 times
[2020-04-18 11:52:45,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-18 11:52:45,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166050707]
[2020-04-18 11:52:45,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-18 11:52:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-18 11:52:45,983 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 11:52:45,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166050707]
[2020-04-18 11:52:45,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-18 11:52:45,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-18 11:52:45,985 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-04-18 11:52:45,987 INFO L256 McrAutomatonBuilder]: Started intersection.
[2020-04-18 11:52:45,991 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 60 transitions.
[2020-04-18 11:52:45,991 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton.
[2020-04-18 11:52:46,003 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times.
[2020-04-18 11:52:46,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-18 11:52:46,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:52:46,004 INFO L87 Difference]: Start difference. First operand 231 states and 379 transitions. Second operand 3 states.
[2020-04-18 11:52:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:46,015 INFO L93 Difference]: Finished difference Result 315 states and 504 transitions.
[2020-04-18 11:52:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 504 transitions.
[2020-04-18 11:52:46,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:52:46,017 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2246692]
[2020-04-18 11:52:46,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-04-18 11:52:46,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3
[2020-04-18 11:52:46,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2246692]
[2020-04-18 11:52:46,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-04-18 11:52:46,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR
[2020-04-18 11:52:46,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-04-18 11:52:46,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-04-18 11:52:46,019 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 7 states.
[2020-04-18 11:52:46,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-18 11:52:46,358 INFO L93 Difference]: Finished difference Result 260 states and 692 transitions.
[2020-04-18 11:52:46,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-04-18 11:52:46,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19
[2020-04-18 11:52:46,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-18 11:52:46,359 INFO L225 Difference]: With dead ends: 260
[2020-04-18 11:52:46,359 INFO L226 Difference]: Without dead ends: 0
[2020-04-18 11:52:46,360 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272
[2020-04-18 11:52:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-18 11:52:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-18 11:52:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-18 11:52:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-18 11:52:46,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19
[2020-04-18 11:52:46,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-18 11:52:46,361 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-18 11:52:46,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-04-18 11:52:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-18 11:52:46,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-18 11:52:46,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:52:46 BasicIcfg
[2020-04-18 11:52:46,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-18 11:52:46,367 INFO L168 Benchmark]: Toolchain (without parser) took 3867.80 ms. Allocated memory was 138.4 MB in the beginning and 246.9 MB in the end (delta: 108.5 MB). Free memory was 101.8 MB in the beginning and 132.6 MB in the end (delta: -30.8 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB.
[2020-04-18 11:52:46,368 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-04-18 11:52:46,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.55 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 163.1 MB in the end (delta: -63.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB.
[2020-04-18 11:52:46,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.63 ms. Allocated memory is still 203.4 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-04-18 11:52:46,371 INFO L168 Benchmark]: Boogie Preprocessor took 34.41 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-04-18 11:52:46,371 INFO L168 Benchmark]: RCFGBuilder took 449.11 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 137.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
[2020-04-18 11:52:46,374 INFO L168 Benchmark]: TraceAbstraction took 2644.40 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 137.0 MB in the beginning and 132.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB.
[2020-04-18 11:52:46,383 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 661.55 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 163.1 MB in the end (delta: -63.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 57.63 ms. Allocated memory is still 203.4 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 34.41 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 449.11 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 137.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2644.40 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 137.0 MB in the beginning and 132.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 0.9s, 72 ProgramPointsBefore, 46 ProgramPointsAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 689 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4337 CheckedPairsTotal, 38 TotalNumberOfCompositions
- PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 66 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 240 SDtfs, 168 SDslu, 203 SDs, 0 SdLazy, 195 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred 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, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...