/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 15:11:11,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 15:11:11,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 15:11:11,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 15:11:11,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 15:11:11,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 15:11:11,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 15:11:11,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 15:11:11,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 15:11:11,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 15:11:11,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 15:11:11,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 15:11:11,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 15:11:11,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 15:11:11,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 15:11:11,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 15:11:11,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 15:11:11,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 15:11:11,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 15:11:11,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 15:11:11,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 15:11:11,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 15:11:11,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 15:11:11,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 15:11:11,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 15:11:11,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 15:11:11,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 15:11:11,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 15:11:11,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-17 15:11:11,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 15:11:11,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 15:11:11,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 15:11:11,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 15:11:11,412 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 15:11:11,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 15:11:11,412 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 15:11:11,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 15:11:11,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 15:11:11,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 15:11:11,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 15:11:11,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 15:11:11,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 15:11:11,415 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 15:11:11,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 15:11:11,416 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 15:11:11,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 15:11:11,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 15:11:11,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 15:11:11,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 15:11:11,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 15:11:11,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 15:11:11,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 15:11:11,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-17 15:11:11,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 15:11:11,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 15:11:11,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 15:11:11,419 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-17 15:11:11,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-17 15:11:11,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 15:11:11,420 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-17 15:11:11,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 15:11:11,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 15:11:11,968 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 15:11:11,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 15:11:11,971 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 15:11:11,972 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-09-17 15:11:12,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b21c9f9/e12e7cd4bc6f4bdfa4788958016586de/FLAG1adec63fd [2020-09-17 15:11:12,703 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 15:11:12,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-09-17 15:11:12,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b21c9f9/e12e7cd4bc6f4bdfa4788958016586de/FLAG1adec63fd [2020-09-17 15:11:12,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b21c9f9/e12e7cd4bc6f4bdfa4788958016586de [2020-09-17 15:11:12,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 15:11:12,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 15:11:12,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 15:11:12,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 15:11:12,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 15:11:12,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 03:11:12" (1/1) ... [2020-09-17 15:11:12,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0dffbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:12, skipping insertion in model container [2020-09-17 15:11:12,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 03:11:12" (1/1) ... [2020-09-17 15:11:13,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 15:11:13,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 15:11:13,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 15:11:13,605 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 15:11:13,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 15:11:13,781 INFO L208 MainTranslator]: Completed translation [2020-09-17 15:11:13,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13 WrapperNode [2020-09-17 15:11:13,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 15:11:13,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 15:11:13,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 15:11:13,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 15:11:13,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 15:11:13,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 15:11:13,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 15:11:13,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 15:11:13,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (1/1) ... [2020-09-17 15:11:13,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 15:11:13,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 15:11:13,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 15:11:13,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 15:11:13,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (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 [2020-09-17 15:11:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-17 15:11:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-17 15:11:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-17 15:11:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 15:11:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 15:11:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 15:11:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-17 15:11:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 15:11:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 15:11:13,989 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 15:11:15,048 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 15:11:15,049 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-17 15:11:15,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 03:11:15 BoogieIcfgContainer [2020-09-17 15:11:15,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 15:11:15,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 15:11:15,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 15:11:15,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 15:11:15,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 03:11:12" (1/3) ... [2020-09-17 15:11:15,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b2e2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 03:11:15, skipping insertion in model container [2020-09-17 15:11:15,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 03:11:13" (2/3) ... [2020-09-17 15:11:15,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b2e2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 03:11:15, skipping insertion in model container [2020-09-17 15:11:15,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 03:11:15" (3/3) ... [2020-09-17 15:11:15,064 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-09-17 15:11:15,076 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 15:11:15,077 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-17 15:11:15,087 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-17 15:11:15,088 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 15:11:15,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 15:11:15,155 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 15:11:15,183 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 15:11:15,184 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 15:11:15,184 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-17 15:11:15,184 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-17 15:11:15,184 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 15:11:15,184 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 15:11:15,185 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 15:11:15,185 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 15:11:15,203 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 54 transitions, 113 flow [2020-09-17 15:11:15,205 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 113 flow [2020-09-17 15:11:15,243 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2020-09-17 15:11:15,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 15:11:15,249 INFO L80 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 4/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 38. Up to 3 conditions per place. [2020-09-17 15:11:15,251 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 113 flow [2020-09-17 15:11:15,269 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2020-09-17 15:11:15,269 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 15:11:15,270 INFO L80 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 4/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 38. Up to 3 conditions per place. [2020-09-17 15:11:15,272 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 704 [2020-09-17 15:11:15,273 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-17 15:11:16,570 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-09-17 15:11:16,667 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2154 [2020-09-17 15:11:16,667 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2020-09-17 15:11:16,672 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 22 transitions, 49 flow [2020-09-17 15:11:16,686 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 82 states. [2020-09-17 15:11:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-09-17 15:11:16,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-17 15:11:16,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 15:11:16,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-17 15:11:16,700 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 15:11:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 15:11:16,707 INFO L82 PathProgramCache]: Analyzing trace with hash 429266084, now seen corresponding path program 1 times [2020-09-17 15:11:16,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 15:11:16,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215205344] [2020-09-17 15:11:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 15:11:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 15:11:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 15:11:16,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215205344] [2020-09-17 15:11:16,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 15:11:16,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 15:11:16,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1557377378] [2020-09-17 15:11:16,961 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 15:11:16,965 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 15:11:16,982 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-17 15:11:16,982 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 15:11:16,984 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 15:11:16,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 15:11:16,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 15:11:17,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 15:11:17,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,010 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 3 states. [2020-09-17 15:11:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 15:11:17,033 INFO L93 Difference]: Finished difference Result 82 states and 154 transitions. [2020-09-17 15:11:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 15:11:17,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-09-17 15:11:17,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 15:11:17,051 INFO L225 Difference]: With dead ends: 82 [2020-09-17 15:11:17,051 INFO L226 Difference]: Without dead ends: 73 [2020-09-17 15:11:17,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-17 15:11:17,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-17 15:11:17,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-17 15:11:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 133 transitions. [2020-09-17 15:11:17,113 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 133 transitions. Word has length 5 [2020-09-17 15:11:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 15:11:17,113 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 133 transitions. [2020-09-17 15:11:17,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 15:11:17,114 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 133 transitions. [2020-09-17 15:11:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-17 15:11:17,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 15:11:17,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-17 15:11:17,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 15:11:17,115 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 15:11:17,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 15:11:17,116 INFO L82 PathProgramCache]: Analyzing trace with hash 422942901, now seen corresponding path program 1 times [2020-09-17 15:11:17,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 15:11:17,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859357550] [2020-09-17 15:11:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 15:11:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 15:11:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 15:11:17,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859357550] [2020-09-17 15:11:17,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 15:11:17,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 15:11:17,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [314295560] [2020-09-17 15:11:17,222 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 15:11:17,224 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 15:11:17,225 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-17 15:11:17,225 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 15:11:17,225 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 15:11:17,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 15:11:17,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 15:11:17,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 15:11:17,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,230 INFO L87 Difference]: Start difference. First operand 73 states and 133 transitions. Second operand 3 states. [2020-09-17 15:11:17,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 15:11:17,262 INFO L93 Difference]: Finished difference Result 79 states and 135 transitions. [2020-09-17 15:11:17,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 15:11:17,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-17 15:11:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 15:11:17,264 INFO L225 Difference]: With dead ends: 79 [2020-09-17 15:11:17,264 INFO L226 Difference]: Without dead ends: 67 [2020-09-17 15:11:17,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-17 15:11:17,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-09-17 15:11:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-17 15:11:17,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 108 transitions. [2020-09-17 15:11:17,276 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 108 transitions. Word has length 6 [2020-09-17 15:11:17,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 15:11:17,276 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 108 transitions. [2020-09-17 15:11:17,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 15:11:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 108 transitions. [2020-09-17 15:11:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 15:11:17,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 15:11:17,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 15:11:17,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 15:11:17,278 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 15:11:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 15:11:17,278 INFO L82 PathProgramCache]: Analyzing trace with hash -2140784243, now seen corresponding path program 1 times [2020-09-17 15:11:17,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 15:11:17,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123180974] [2020-09-17 15:11:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 15:11:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 15:11:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 15:11:17,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123180974] [2020-09-17 15:11:17,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 15:11:17,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 15:11:17,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1395816060] [2020-09-17 15:11:17,347 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 15:11:17,348 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 15:11:17,349 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-17 15:11:17,350 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 15:11:17,350 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 15:11:17,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 15:11:17,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 15:11:17,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 15:11:17,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,351 INFO L87 Difference]: Start difference. First operand 61 states and 108 transitions. Second operand 3 states. [2020-09-17 15:11:17,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 15:11:17,368 INFO L93 Difference]: Finished difference Result 57 states and 95 transitions. [2020-09-17 15:11:17,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 15:11:17,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-17 15:11:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 15:11:17,369 INFO L225 Difference]: With dead ends: 57 [2020-09-17 15:11:17,370 INFO L226 Difference]: Without dead ends: 39 [2020-09-17 15:11:17,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-17 15:11:17,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-17 15:11:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-17 15:11:17,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. [2020-09-17 15:11:17,375 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 8 [2020-09-17 15:11:17,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 15:11:17,375 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. [2020-09-17 15:11:17,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 15:11:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2020-09-17 15:11:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 15:11:17,377 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 15:11:17,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 15:11:17,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 15:11:17,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 15:11:17,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 15:11:17,378 INFO L82 PathProgramCache]: Analyzing trace with hash 253860032, now seen corresponding path program 1 times [2020-09-17 15:11:17,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 15:11:17,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537572836] [2020-09-17 15:11:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 15:11:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 15:11:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 15:11:17,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537572836] [2020-09-17 15:11:17,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 15:11:17,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 15:11:17,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1728675098] [2020-09-17 15:11:17,558 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 15:11:17,559 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 15:11:17,561 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-09-17 15:11:17,561 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 15:11:17,590 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 15:11:17,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 15:11:17,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 15:11:17,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 15:11:17,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-17 15:11:17,591 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand 6 states. [2020-09-17 15:11:17,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 15:11:17,658 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2020-09-17 15:11:17,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 15:11:17,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-09-17 15:11:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 15:11:17,660 INFO L225 Difference]: With dead ends: 33 [2020-09-17 15:11:17,660 INFO L226 Difference]: Without dead ends: 27 [2020-09-17 15:11:17,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 15:11:17,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-17 15:11:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-09-17 15:11:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-17 15:11:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2020-09-17 15:11:17,664 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 11 [2020-09-17 15:11:17,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 15:11:17,665 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-09-17 15:11:17,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 15:11:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-09-17 15:11:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 15:11:17,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 15:11:17,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 15:11:17,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 15:11:17,666 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 15:11:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 15:11:17,667 INFO L82 PathProgramCache]: Analyzing trace with hash -133203992, now seen corresponding path program 1 times [2020-09-17 15:11:17,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 15:11:17,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070545220] [2020-09-17 15:11:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 15:11:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 15:11:17,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 15:11:17,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070545220] [2020-09-17 15:11:17,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 15:11:17,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 15:11:17,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1410586810] [2020-09-17 15:11:17,718 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-17 15:11:17,721 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-17 15:11:17,723 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-09-17 15:11:17,723 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-17 15:11:17,732 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-17 15:11:17,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 15:11:17,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 15:11:17,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 15:11:17,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,733 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 3 states. [2020-09-17 15:11:17,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 15:11:17,738 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-09-17 15:11:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 15:11:17,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-17 15:11:17,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 15:11:17,743 INFO L225 Difference]: With dead ends: 10 [2020-09-17 15:11:17,743 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 15:11:17,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 15:11:17,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 15:11:17,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 15:11:17,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 15:11:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 15:11:17,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-09-17 15:11:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 15:11:17,745 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 15:11:17,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 15:11:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 15:11:17,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 15:11:17,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 15:11:17,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 03:11:17 BasicIcfg [2020-09-17 15:11:17,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 15:11:17,755 INFO L168 Benchmark]: Toolchain (without parser) took 4775.44 ms. Allocated memory was 145.2 MB in the beginning and 252.2 MB in the end (delta: 107.0 MB). Free memory was 100.5 MB in the beginning and 189.4 MB in the end (delta: -89.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2020-09-17 15:11:17,756 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-17 15:11:17,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.38 ms. Allocated memory was 145.2 MB in the beginning and 200.8 MB in the end (delta: 55.6 MB). Free memory was 99.9 MB in the beginning and 160.4 MB in the end (delta: -60.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-17 15:11:17,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.29 ms. Allocated memory is still 200.8 MB. Free memory was 160.4 MB in the beginning and 158.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-17 15:11:17,765 INFO L168 Benchmark]: Boogie Preprocessor took 34.55 ms. Allocated memory is still 200.8 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-17 15:11:17,766 INFO L168 Benchmark]: RCFGBuilder took 1171.65 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 156.0 MB in the beginning and 184.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2020-09-17 15:11:17,767 INFO L168 Benchmark]: TraceAbstraction took 2696.11 ms. Allocated memory was 231.7 MB in the beginning and 252.2 MB in the end (delta: 20.4 MB). Free memory was 184.1 MB in the beginning and 189.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-09-17 15:11:17,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.38 ms. Allocated memory was 145.2 MB in the beginning and 200.8 MB in the end (delta: 55.6 MB). Free memory was 99.9 MB in the beginning and 160.4 MB in the end (delta: -60.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.29 ms. Allocated memory is still 200.8 MB. Free memory was 160.4 MB in the beginning and 158.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.55 ms. Allocated memory is still 200.8 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1171.65 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 156.0 MB in the beginning and 184.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2696.11 ms. Allocated memory was 231.7 MB in the beginning and 252.2 MB in the end (delta: 20.4 MB). Free memory was 184.1 MB in the beginning and 189.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 54 ProgramPointsBefore, 23 ProgramPointsAfterwards, 54 TransitionsBefore, 22 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 367 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2154 CheckedPairsTotal, 36 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: 711]: 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 2 procedures, 51 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 77 SDtfs, 65 SDslu, 38 SDs, 0 SdLazy, 43 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 888 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...