/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/01_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 13:15:30,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 13:15:30,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 13:15:30,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 13:15:30,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 13:15:30,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 13:15:30,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 13:15:30,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 13:15:30,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 13:15:30,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 13:15:30,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 13:15:30,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 13:15:30,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 13:15:30,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 13:15:30,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 13:15:30,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 13:15:30,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 13:15:30,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 13:15:30,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 13:15:30,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 13:15:31,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 13:15:31,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 13:15:31,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 13:15:31,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 13:15:31,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 13:15:31,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 13:15:31,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 13:15:31,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 13:15:31,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 13:15:31,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 13:15:31,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 13:15:31,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 13:15:31,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 13:15:31,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 13:15:31,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 13:15:31,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 13:15:31,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 13:15:31,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 13:15:31,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 13:15:31,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 13:15:31,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 13:15:31,068 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 13:15:31,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 13:15:31,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 13:15:31,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 13:15:31,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 13:15:31,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 13:15:31,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 13:15:31,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 13:15:31,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 13:15:31,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 13:15:31,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 13:15:31,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 13:15:31,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 13:15:31,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 13:15:31,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 13:15:31,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 13:15:31,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 13:15:31,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 13:15:31,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 13:15:31,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 13:15:31,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 13:15:31,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 13:15:31,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 13:15:31,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 13:15:31,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 13:15:31,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 13:15:31,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 13:15:31,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 13:15:31,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 13:15:31,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 13:15:31,397 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 13:15:31,398 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01_inc.i [2020-10-11 13:15:31,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7563d61f/0f0d899bb07e45d58fa65189f20ed019/FLAG74a6e703f [2020-10-11 13:15:31,958 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 13:15:31,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01_inc.i [2020-10-11 13:15:31,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7563d61f/0f0d899bb07e45d58fa65189f20ed019/FLAG74a6e703f [2020-10-11 13:15:32,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7563d61f/0f0d899bb07e45d58fa65189f20ed019 [2020-10-11 13:15:32,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 13:15:32,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 13:15:32,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 13:15:32,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 13:15:32,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 13:15:32,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4795cef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32, skipping insertion in model container [2020-10-11 13:15:32,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 13:15:32,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 13:15:32,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:15:32,789 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 13:15:32,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:15:32,926 INFO L208 MainTranslator]: Completed translation [2020-10-11 13:15:32,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32 WrapperNode [2020-10-11 13:15:32,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 13:15:32,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 13:15:32,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 13:15:32,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 13:15:32,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 13:15:32,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 13:15:32,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 13:15:32,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 13:15:32,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (1/1) ... [2020-10-11 13:15:32,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 13:15:32,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 13:15:32,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 13:15:32,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 13:15:32,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (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 [2020-10-11 13:15:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-11 13:15:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-11 13:15:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 13:15:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 13:15:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 13:15:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 13:15:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 13:15:33,063 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 13:15:33,467 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 13:15:33,467 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-11 13:15:33,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:15:33 BoogieIcfgContainer [2020-10-11 13:15:33,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 13:15:33,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 13:15:33,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 13:15:33,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 13:15:33,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:15:32" (1/3) ... [2020-10-11 13:15:33,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551b68f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:15:33, skipping insertion in model container [2020-10-11 13:15:33,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:15:32" (2/3) ... [2020-10-11 13:15:33,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551b68f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:15:33, skipping insertion in model container [2020-10-11 13:15:33,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:15:33" (3/3) ... [2020-10-11 13:15:33,477 INFO L111 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2020-10-11 13:15:33,489 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 13:15:33,489 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 13:15:33,495 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 13:15:33,496 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 13:15:33,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:33,550 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-11 13:15:33,568 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:15:33,568 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:15:33,569 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:15:33,569 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:15:33,569 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:15:33,569 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:15:33,569 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:15:33,569 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:15:33,580 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:15:33,582 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 35 transitions, 75 flow [2020-10-11 13:15:33,585 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 35 transitions, 75 flow [2020-10-11 13:15:33,586 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 35 places, 35 transitions, 75 flow [2020-10-11 13:15:33,621 INFO L129 PetriNetUnfolder]: 4/43 cut-off events. [2020-10-11 13:15:33,624 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 13:15:33,631 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 43 events. 4/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2020-10-11 13:15:33,633 INFO L117 LiptonReduction]: Number of co-enabled transitions 320 [2020-10-11 13:15:34,680 INFO L132 LiptonReduction]: Checked pairs total: 295 [2020-10-11 13:15:34,680 INFO L134 LiptonReduction]: Total number of compositions: 34 [2020-10-11 13:15:34,687 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-10-11 13:15:34,696 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-10-11 13:15:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-11 13:15:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:15:34,705 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:34,705 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:15:34,706 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:15:34,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:34,712 INFO L82 PathProgramCache]: Analyzing trace with hash 7400622, now seen corresponding path program 1 times [2020-10-11 13:15:34,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:34,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831425276] [2020-10-11 13:15:34,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:15:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:15:34,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831425276] [2020-10-11 13:15:34,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:15:34,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 13:15:34,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843740779] [2020-10-11 13:15:34,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 13:15:34,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:15:34,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 13:15:34,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 13:15:34,894 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-10-11 13:15:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:15:34,905 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-11 13:15:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 13:15:34,906 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-11 13:15:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:15:34,915 INFO L225 Difference]: With dead ends: 11 [2020-10-11 13:15:34,915 INFO L226 Difference]: Without dead ends: 11 [2020-10-11 13:15:34,917 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 13:15:34,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-11 13:15:34,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-11 13:15:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 13:15:34,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-11 13:15:34,947 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-11 13:15:34,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:15:34,948 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-11 13:15:34,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 13:15:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-11 13:15:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-11 13:15:34,949 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:34,949 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-11 13:15:34,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 13:15:34,949 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:15:34,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:34,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1478000843, now seen corresponding path program 1 times [2020-10-11 13:15:34,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:34,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185921368] [2020-10-11 13:15:34,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:34,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:34,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:35,004 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:15:35,004 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:15:35,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 13:15:35,006 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:15:35,007 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-11 13:15:35,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,017 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,017 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,018 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,018 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,023 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,026 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,026 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,026 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,026 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:35,027 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 13:15:35,028 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:15:35,028 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:15:35,028 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:15:35,028 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:15:35,028 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:15:35,028 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:15:35,028 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:15:35,029 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:15:35,031 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:15:35,031 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 52 transitions, 116 flow [2020-10-11 13:15:35,031 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 52 transitions, 116 flow [2020-10-11 13:15:35,032 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 116 flow [2020-10-11 13:15:35,048 INFO L129 PetriNetUnfolder]: 7/69 cut-off events. [2020-10-11 13:15:35,048 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 13:15:35,050 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 7/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 166 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 44. Up to 6 conditions per place. [2020-10-11 13:15:35,052 INFO L117 LiptonReduction]: Number of co-enabled transitions 1184 [2020-10-11 13:15:35,869 INFO L132 LiptonReduction]: Checked pairs total: 3194 [2020-10-11 13:15:35,870 INFO L134 LiptonReduction]: Total number of compositions: 34 [2020-10-11 13:15:35,870 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 25 transitions, 62 flow [2020-10-11 13:15:35,897 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 445 states. [2020-10-11 13:15:35,898 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2020-10-11 13:15:35,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 13:15:35,900 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:35,900 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:15:35,900 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:15:35,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:35,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1194994076, now seen corresponding path program 1 times [2020-10-11 13:15:35,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:35,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926068339] [2020-10-11 13:15:35,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:15:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:15:36,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926068339] [2020-10-11 13:15:36,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:15:36,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:15:36,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981679353] [2020-10-11 13:15:36,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:15:36,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:15:36,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:15:36,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:15:36,081 INFO L87 Difference]: Start difference. First operand 445 states. Second operand 5 states. [2020-10-11 13:15:36,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:15:36,191 INFO L93 Difference]: Finished difference Result 420 states and 1023 transitions. [2020-10-11 13:15:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:15:36,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-11 13:15:36,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:15:36,201 INFO L225 Difference]: With dead ends: 420 [2020-10-11 13:15:36,201 INFO L226 Difference]: Without dead ends: 420 [2020-10-11 13:15:36,202 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:15:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-11 13:15:36,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 340. [2020-10-11 13:15:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-10-11 13:15:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 855 transitions. [2020-10-11 13:15:36,251 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 855 transitions. Word has length 9 [2020-10-11 13:15:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:15:36,252 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 855 transitions. [2020-10-11 13:15:36,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:15:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 855 transitions. [2020-10-11 13:15:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 13:15:36,253 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:36,253 INFO L421 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-11 13:15:36,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 13:15:36,254 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:15:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:36,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1335142672, now seen corresponding path program 1 times [2020-10-11 13:15:36,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:36,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528217512] [2020-10-11 13:15:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:36,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:36,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:36,284 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:15:36,284 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:15:36,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 13:15:36,284 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:15:36,286 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-11 13:15:36,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:36,315 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 13:15:36,315 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:15:36,316 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:15:36,316 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:15:36,316 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:15:36,316 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:15:36,316 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:15:36,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:15:36,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:15:36,318 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:15:36,318 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 69 transitions, 159 flow [2020-10-11 13:15:36,319 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 69 transitions, 159 flow [2020-10-11 13:15:36,319 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 69 transitions, 159 flow [2020-10-11 13:15:36,338 INFO L129 PetriNetUnfolder]: 10/95 cut-off events. [2020-10-11 13:15:36,338 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-11 13:15:36,340 INFO L80 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 95 events. 10/95 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 73. Up to 8 conditions per place. [2020-10-11 13:15:36,343 INFO L117 LiptonReduction]: Number of co-enabled transitions 2592 [2020-10-11 13:15:37,400 INFO L132 LiptonReduction]: Checked pairs total: 9163 [2020-10-11 13:15:37,400 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-11 13:15:37,400 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 91 flow [2020-10-11 13:15:37,617 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4009 states. [2020-10-11 13:15:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states. [2020-10-11 13:15:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 13:15:37,618 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:37,618 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:15:37,619 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:15:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:37,619 INFO L82 PathProgramCache]: Analyzing trace with hash 680083894, now seen corresponding path program 1 times [2020-10-11 13:15:37,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:37,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793861555] [2020-10-11 13:15:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:15:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:15:37,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793861555] [2020-10-11 13:15:37,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:15:37,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:15:37,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165610071] [2020-10-11 13:15:37,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:15:37,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:15:37,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:15:37,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:15:37,727 INFO L87 Difference]: Start difference. First operand 4009 states. Second operand 5 states. [2020-10-11 13:15:37,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:15:37,944 INFO L93 Difference]: Finished difference Result 4685 states and 16109 transitions. [2020-10-11 13:15:37,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:15:37,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-11 13:15:37,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:15:37,991 INFO L225 Difference]: With dead ends: 4685 [2020-10-11 13:15:37,991 INFO L226 Difference]: Without dead ends: 4685 [2020-10-11 13:15:37,992 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:15:38,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2020-10-11 13:15:38,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 3505. [2020-10-11 13:15:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3505 states. [2020-10-11 13:15:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 12416 transitions. [2020-10-11 13:15:38,237 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 12416 transitions. Word has length 9 [2020-10-11 13:15:38,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:15:38,238 INFO L481 AbstractCegarLoop]: Abstraction has 3505 states and 12416 transitions. [2020-10-11 13:15:38,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:15:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 12416 transitions. [2020-10-11 13:15:38,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 13:15:38,240 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:38,240 INFO L421 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-11 13:15:38,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 13:15:38,240 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:15:38,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:38,241 INFO L82 PathProgramCache]: Analyzing trace with hash -450990296, now seen corresponding path program 1 times [2020-10-11 13:15:38,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:38,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861372690] [2020-10-11 13:15:38,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:38,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:38,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:38,268 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:15:38,268 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:15:38,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 13:15:38,269 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:15:38,269 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-11 13:15:38,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:38,297 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-11 13:15:38,297 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:15:38,298 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:15:38,298 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:15:38,298 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:15:38,298 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:15:38,298 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:15:38,298 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:15:38,298 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:15:38,300 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:15:38,300 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 86 transitions, 204 flow [2020-10-11 13:15:38,300 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 86 transitions, 204 flow [2020-10-11 13:15:38,300 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 86 transitions, 204 flow [2020-10-11 13:15:38,320 INFO L129 PetriNetUnfolder]: 13/121 cut-off events. [2020-10-11 13:15:38,320 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-11 13:15:38,322 INFO L80 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 121 events. 13/121 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 357 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 104. Up to 10 conditions per place. [2020-10-11 13:15:38,327 INFO L117 LiptonReduction]: Number of co-enabled transitions 4544 [2020-10-11 13:15:39,860 INFO L132 LiptonReduction]: Checked pairs total: 16244 [2020-10-11 13:15:39,860 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-11 13:15:39,861 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 45 transitions, 122 flow [2020-10-11 13:15:44,026 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36085 states. [2020-10-11 13:15:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 36085 states. [2020-10-11 13:15:44,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 13:15:44,027 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:44,027 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:15:44,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:15:44,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:44,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1611612170, now seen corresponding path program 1 times [2020-10-11 13:15:44,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:44,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056300577] [2020-10-11 13:15:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:15:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:15:44,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056300577] [2020-10-11 13:15:44,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:15:44,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:15:44,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447433686] [2020-10-11 13:15:44,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:15:44,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:15:44,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:15:44,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:15:44,118 INFO L87 Difference]: Start difference. First operand 36085 states. Second operand 5 states. [2020-10-11 13:15:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:15:44,870 INFO L93 Difference]: Finished difference Result 47190 states and 210662 transitions. [2020-10-11 13:15:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:15:44,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-11 13:15:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:15:45,188 INFO L225 Difference]: With dead ends: 47190 [2020-10-11 13:15:45,188 INFO L226 Difference]: Without dead ends: 47190 [2020-10-11 13:15:45,189 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:15:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47190 states. [2020-10-11 13:15:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47190 to 34210. [2020-10-11 13:15:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34210 states. [2020-10-11 13:15:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34210 states to 34210 states and 156599 transitions. [2020-10-11 13:15:48,634 INFO L78 Accepts]: Start accepts. Automaton has 34210 states and 156599 transitions. Word has length 9 [2020-10-11 13:15:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:15:48,634 INFO L481 AbstractCegarLoop]: Abstraction has 34210 states and 156599 transitions. [2020-10-11 13:15:48,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:15:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 34210 states and 156599 transitions. [2020-10-11 13:15:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 13:15:48,636 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:48,636 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:15:48,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 13:15:48,637 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:15:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:48,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2021235878, now seen corresponding path program 1 times [2020-10-11 13:15:48,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:48,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167954007] [2020-10-11 13:15:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:15:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:15:48,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167954007] [2020-10-11 13:15:48,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:15:48,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:15:48,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395632135] [2020-10-11 13:15:48,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:15:48,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:15:48,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:15:48,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:15:48,713 INFO L87 Difference]: Start difference. First operand 34210 states and 156599 transitions. Second operand 5 states. [2020-10-11 13:15:49,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:15:49,313 INFO L93 Difference]: Finished difference Result 58400 states and 260286 transitions. [2020-10-11 13:15:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:15:49,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 13:15:49,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:15:51,933 INFO L225 Difference]: With dead ends: 58400 [2020-10-11 13:15:51,933 INFO L226 Difference]: Without dead ends: 58400 [2020-10-11 13:15:51,933 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:15:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58400 states. [2020-10-11 13:15:53,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58400 to 42352. [2020-10-11 13:15:53,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42352 states. [2020-10-11 13:15:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42352 states to 42352 states and 193270 transitions. [2020-10-11 13:15:53,721 INFO L78 Accepts]: Start accepts. Automaton has 42352 states and 193270 transitions. Word has length 12 [2020-10-11 13:15:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:15:53,722 INFO L481 AbstractCegarLoop]: Abstraction has 42352 states and 193270 transitions. [2020-10-11 13:15:53,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:15:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 42352 states and 193270 transitions. [2020-10-11 13:15:53,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 13:15:53,726 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:53,726 INFO L421 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:15:53,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 13:15:53,727 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:15:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:53,727 INFO L82 PathProgramCache]: Analyzing trace with hash 252682179, now seen corresponding path program 1 times [2020-10-11 13:15:53,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:53,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266597829] [2020-10-11 13:15:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:15:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-11 13:15:53,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266597829] [2020-10-11 13:15:53,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:15:53,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:15:53,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628904532] [2020-10-11 13:15:53,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:15:53,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:15:53,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:15:53,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:15:53,812 INFO L87 Difference]: Start difference. First operand 42352 states and 193270 transitions. Second operand 5 states. [2020-10-11 13:15:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:15:54,980 INFO L93 Difference]: Finished difference Result 70864 states and 315512 transitions. [2020-10-11 13:15:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:15:54,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 13:15:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:15:55,433 INFO L225 Difference]: With dead ends: 70864 [2020-10-11 13:15:55,433 INFO L226 Difference]: Without dead ends: 70864 [2020-10-11 13:15:55,434 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:15:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70864 states. [2020-10-11 13:15:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70864 to 51472. [2020-10-11 13:15:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51472 states. [2020-10-11 13:15:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51472 states to 51472 states and 234268 transitions. [2020-10-11 13:15:57,499 INFO L78 Accepts]: Start accepts. Automaton has 51472 states and 234268 transitions. Word has length 15 [2020-10-11 13:15:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:15:57,500 INFO L481 AbstractCegarLoop]: Abstraction has 51472 states and 234268 transitions. [2020-10-11 13:15:57,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:15:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 51472 states and 234268 transitions. [2020-10-11 13:15:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 13:15:57,501 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:15:57,501 INFO L421 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-11 13:15:57,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 13:15:57,502 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:15:57,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:15:57,502 INFO L82 PathProgramCache]: Analyzing trace with hash 649438076, now seen corresponding path program 1 times [2020-10-11 13:15:57,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:15:57,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396617302] [2020-10-11 13:15:57,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:15:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:57,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:15:57,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:15:57,524 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:15:57,524 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:15:57,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 13:15:57,525 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:15:57,525 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-11 13:15:57,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:15:57,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-11 13:15:57,574 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:15:57,574 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:15:57,574 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:15:57,574 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:15:57,574 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:15:57,574 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:15:57,574 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:15:57,574 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:15:57,576 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:15:57,576 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 103 transitions, 251 flow [2020-10-11 13:15:57,576 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 103 transitions, 251 flow [2020-10-11 13:15:57,576 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 251 flow [2020-10-11 13:15:57,608 INFO L129 PetriNetUnfolder]: 16/147 cut-off events. [2020-10-11 13:15:57,608 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-11 13:15:57,612 INFO L80 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 147 events. 16/147 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 449 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 137. Up to 12 conditions per place. [2020-10-11 13:15:57,621 INFO L117 LiptonReduction]: Number of co-enabled transitions 7040 [2020-10-11 13:16:00,400 INFO L132 LiptonReduction]: Checked pairs total: 36976 [2020-10-11 13:16:00,401 INFO L134 LiptonReduction]: Total number of compositions: 65 [2020-10-11 13:16:00,401 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 157 flow [2020-10-11 13:20:16,188 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 324769 states. [2020-10-11 13:20:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 324769 states. [2020-10-11 13:20:16,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 13:20:16,190 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:20:16,190 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:20:16,190 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:20:16,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:20:16,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1566824361, now seen corresponding path program 1 times [2020-10-11 13:20:16,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:20:16,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813431630] [2020-10-11 13:20:16,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:20:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:20:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:20:16,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813431630] [2020-10-11 13:20:16,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:20:16,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:20:16,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801132331] [2020-10-11 13:20:16,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:20:16,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:20:16,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:20:16,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:20:16,293 INFO L87 Difference]: Start difference. First operand 324769 states. Second operand 5 states. [2020-10-11 13:20:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:20:20,122 INFO L93 Difference]: Finished difference Result 451535 states and 2479114 transitions. [2020-10-11 13:20:20,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:20:20,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-11 13:20:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:20:21,787 INFO L225 Difference]: With dead ends: 451535 [2020-10-11 13:20:21,788 INFO L226 Difference]: Without dead ends: 451535 [2020-10-11 13:20:21,788 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:20:57,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451535 states. [2020-10-11 13:21:05,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451535 to 322855. [2020-10-11 13:21:05,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322855 states. [2020-10-11 13:21:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322855 states to 322855 states and 1810396 transitions. [2020-10-11 13:21:26,361 INFO L78 Accepts]: Start accepts. Automaton has 322855 states and 1810396 transitions. Word has length 9 [2020-10-11 13:21:26,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:21:26,361 INFO L481 AbstractCegarLoop]: Abstraction has 322855 states and 1810396 transitions. [2020-10-11 13:21:26,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:21:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 322855 states and 1810396 transitions. [2020-10-11 13:21:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 13:21:26,362 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:21:26,362 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:21:26,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 13:21:26,362 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:21:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:21:26,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1076432545, now seen corresponding path program 1 times [2020-10-11 13:21:26,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:21:26,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098834028] [2020-10-11 13:21:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:21:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:21:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:21:26,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098834028] [2020-10-11 13:21:26,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:21:26,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:21:26,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716394243] [2020-10-11 13:21:26,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:21:26,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:21:26,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:21:26,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:21:26,456 INFO L87 Difference]: Start difference. First operand 322855 states and 1810396 transitions. Second operand 5 states. [2020-10-11 13:21:49,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:21:49,079 INFO L93 Difference]: Finished difference Result 571320 states and 3134733 transitions. [2020-10-11 13:21:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:21:49,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 13:21:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:21:51,149 INFO L225 Difference]: With dead ends: 571320 [2020-10-11 13:21:51,149 INFO L226 Difference]: Without dead ends: 571320 [2020-10-11 13:21:51,150 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:22:14,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571320 states. [2020-10-11 13:22:24,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571320 to 408892. [2020-10-11 13:22:24,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408892 states. [2020-10-11 13:22:28,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408892 states to 408892 states and 2288588 transitions. [2020-10-11 13:22:28,059 INFO L78 Accepts]: Start accepts. Automaton has 408892 states and 2288588 transitions. Word has length 12 [2020-10-11 13:22:28,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:22:28,060 INFO L481 AbstractCegarLoop]: Abstraction has 408892 states and 2288588 transitions. [2020-10-11 13:22:28,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:22:28,060 INFO L276 IsEmpty]: Start isEmpty. Operand 408892 states and 2288588 transitions. [2020-10-11 13:22:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 13:22:28,061 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:22:28,061 INFO L421 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:22:28,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 13:22:28,062 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:22:28,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:22:28,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1831762553, now seen corresponding path program 1 times [2020-10-11 13:22:28,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:22:28,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117928271] [2020-10-11 13:22:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:22:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:22:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-11 13:22:28,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117928271] [2020-10-11 13:22:28,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:22:28,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:22:28,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416064944] [2020-10-11 13:22:28,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:22:28,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:22:28,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:22:28,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:22:28,204 INFO L87 Difference]: Start difference. First operand 408892 states and 2288588 transitions. Second operand 5 states. [2020-10-11 13:22:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:22:50,256 INFO L93 Difference]: Finished difference Result 709084 states and 3888136 transitions. [2020-10-11 13:22:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:22:50,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 13:22:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:23:09,680 INFO L225 Difference]: With dead ends: 709084 [2020-10-11 13:23:09,680 INFO L226 Difference]: Without dead ends: 709084 [2020-10-11 13:23:09,680 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:23:33,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709084 states. [2020-10-11 13:23:47,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709084 to 508012. [2020-10-11 13:23:47,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508012 states. [2020-10-11 13:24:16,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508012 states to 508012 states and 2838716 transitions. [2020-10-11 13:24:16,992 INFO L78 Accepts]: Start accepts. Automaton has 508012 states and 2838716 transitions. Word has length 15 [2020-10-11 13:24:16,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:24:16,992 INFO L481 AbstractCegarLoop]: Abstraction has 508012 states and 2838716 transitions. [2020-10-11 13:24:16,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:24:16,992 INFO L276 IsEmpty]: Start isEmpty. Operand 508012 states and 2838716 transitions. [2020-10-11 13:24:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 13:24:16,993 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:24:16,993 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:24:16,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 13:24:16,994 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:24:16,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:24:16,994 INFO L82 PathProgramCache]: Analyzing trace with hash 573959061, now seen corresponding path program 1 times [2020-10-11 13:24:16,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:24:16,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671045894] [2020-10-11 13:24:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:24:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:24:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:24:17,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671045894] [2020-10-11 13:24:17,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331850391] [2020-10-11 13:24:17,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:24:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:24:17,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-11 13:24:17,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:24:17,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:24:17,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:24:17,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-10-11 13:24:17,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804880224] [2020-10-11 13:24:17,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 13:24:17,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:24:17,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 13:24:17,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:24:17,254 INFO L87 Difference]: Start difference. First operand 508012 states and 2838716 transitions. Second operand 8 states. [2020-10-11 13:24:46,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:24:46,562 INFO L93 Difference]: Finished difference Result 810646 states and 4333411 transitions. [2020-10-11 13:24:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 13:24:46,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-11 13:24:46,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:24:51,043 INFO L225 Difference]: With dead ends: 810646 [2020-10-11 13:24:51,043 INFO L226 Difference]: Without dead ends: 810646 [2020-10-11 13:24:51,043 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-11 13:25:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810646 states. [2020-10-11 13:25:44,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810646 to 560016. [2020-10-11 13:25:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560016 states. [2020-10-11 13:25:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560016 states to 560016 states and 3054535 transitions. [2020-10-11 13:25:49,704 INFO L78 Accepts]: Start accepts. Automaton has 560016 states and 3054535 transitions. Word has length 16 [2020-10-11 13:25:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:25:49,704 INFO L481 AbstractCegarLoop]: Abstraction has 560016 states and 3054535 transitions. [2020-10-11 13:25:49,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 13:25:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 560016 states and 3054535 transitions. [2020-10-11 13:25:49,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 13:25:49,705 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:25:49,706 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:25:49,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-11 13:25:49,915 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:25:49,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:25:49,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1525245583, now seen corresponding path program 2 times [2020-10-11 13:25:49,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:25:49,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802113605] [2020-10-11 13:25:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:25:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:25:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:25:49,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802113605] [2020-10-11 13:25:49,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:25:49,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:25:49,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197288455] [2020-10-11 13:25:49,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:25:49,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:25:49,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:25:49,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:25:49,940 INFO L87 Difference]: Start difference. First operand 560016 states and 3054535 transitions. Second operand 3 states. [2020-10-11 13:25:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:25:50,150 INFO L93 Difference]: Finished difference Result 36495 states and 143511 transitions. [2020-10-11 13:25:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:25:50,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-11 13:25:50,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:25:50,238 INFO L225 Difference]: With dead ends: 36495 [2020-10-11 13:25:50,238 INFO L226 Difference]: Without dead ends: 36495 [2020-10-11 13:25:50,238 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:26:08,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36495 states. [2020-10-11 13:26:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36495 to 36411. [2020-10-11 13:26:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36411 states. [2020-10-11 13:26:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36411 states to 36411 states and 143313 transitions. [2020-10-11 13:26:08,930 INFO L78 Accepts]: Start accepts. Automaton has 36411 states and 143313 transitions. Word has length 16 [2020-10-11 13:26:08,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:26:08,930 INFO L481 AbstractCegarLoop]: Abstraction has 36411 states and 143313 transitions. [2020-10-11 13:26:08,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:26:08,930 INFO L276 IsEmpty]: Start isEmpty. Operand 36411 states and 143313 transitions. [2020-10-11 13:26:08,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 13:26:08,931 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:26:08,931 INFO L421 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:26:08,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-11 13:26:08,931 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:26:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:26:08,931 INFO L82 PathProgramCache]: Analyzing trace with hash 806252617, now seen corresponding path program 1 times [2020-10-11 13:26:08,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:26:08,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919166797] [2020-10-11 13:26:08,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:26:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:26:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:26:09,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919166797] [2020-10-11 13:26:09,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:26:09,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 13:26:09,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511569915] [2020-10-11 13:26:09,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 13:26:09,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:26:09,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 13:26:09,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:26:09,034 INFO L87 Difference]: Start difference. First operand 36411 states and 143313 transitions. Second operand 7 states. [2020-10-11 13:26:09,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:26:09,674 INFO L93 Difference]: Finished difference Result 68083 states and 276720 transitions. [2020-10-11 13:26:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 13:26:09,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-11 13:26:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:26:09,854 INFO L225 Difference]: With dead ends: 68083 [2020-10-11 13:26:09,854 INFO L226 Difference]: Without dead ends: 68083 [2020-10-11 13:26:09,855 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:26:11,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68083 states. [2020-10-11 13:26:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68083 to 35712. [2020-10-11 13:26:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35712 states. [2020-10-11 13:26:12,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35712 states to 35712 states and 140931 transitions. [2020-10-11 13:26:12,220 INFO L78 Accepts]: Start accepts. Automaton has 35712 states and 140931 transitions. Word has length 16 [2020-10-11 13:26:12,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:26:12,221 INFO L481 AbstractCegarLoop]: Abstraction has 35712 states and 140931 transitions. [2020-10-11 13:26:12,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 13:26:12,221 INFO L276 IsEmpty]: Start isEmpty. Operand 35712 states and 140931 transitions. [2020-10-11 13:26:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-11 13:26:12,222 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:26:12,222 INFO L421 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:26:12,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-11 13:26:12,222 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:26:12,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:26:12,222 INFO L82 PathProgramCache]: Analyzing trace with hash -917098734, now seen corresponding path program 1 times [2020-10-11 13:26:12,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:26:12,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249066934] [2020-10-11 13:26:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:26:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:26:12,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:26:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:26:12,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:26:12,245 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:26:12,245 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:26:12,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-11 13:26:12,246 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:26:12,246 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-11 13:26:12,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,262 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,262 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,262 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,262 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:26:12,288 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-11 13:26:12,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:26:12,289 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:26:12,289 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:26:12,289 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:26:12,289 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:26:12,289 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:26:12,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:26:12,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:26:12,291 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:26:12,291 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 120 transitions, 300 flow [2020-10-11 13:26:12,291 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 120 transitions, 300 flow [2020-10-11 13:26:12,291 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 120 places, 120 transitions, 300 flow [2020-10-11 13:26:12,326 INFO L129 PetriNetUnfolder]: 19/173 cut-off events. [2020-10-11 13:26:12,326 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-11 13:26:12,329 INFO L80 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 173 events. 19/173 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 551 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 171. Up to 14 conditions per place. [2020-10-11 13:26:12,337 INFO L117 LiptonReduction]: Number of co-enabled transitions 10080 [2020-10-11 13:26:13,736 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2020-10-11 13:26:15,046 INFO L132 LiptonReduction]: Checked pairs total: 55327 [2020-10-11 13:26:15,046 INFO L134 LiptonReduction]: Total number of compositions: 74 [2020-10-11 13:26:15,047 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 66 transitions, 192 flow Received shutdown request... [2020-10-11 13:26:28,542 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-11 13:26:28,544 WARN L235 ceAbstractionStarter]: Timeout [2020-10-11 13:26:28,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 01:26:28 BasicIcfg [2020-10-11 13:26:28,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 13:26:28,546 INFO L168 Benchmark]: Toolchain (without parser) took 656272.03 ms. Allocated memory was 253.2 MB in the beginning and 9.7 GB in the end (delta: 9.5 GB). Free memory was 209.2 MB in the beginning and 4.9 GB in the end (delta: -4.6 GB). Peak memory consumption was 6.4 GB. Max. memory is 14.2 GB. [2020-10-11 13:26:28,547 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 13:26:28,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.19 ms. Allocated memory was 253.2 MB in the beginning and 319.8 MB in the end (delta: 66.6 MB). Free memory was 209.2 MB in the beginning and 275.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. [2020-10-11 13:26:28,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.25 ms. Allocated memory is still 319.8 MB. Free memory was 275.4 MB in the beginning and 272.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 13:26:28,559 INFO L168 Benchmark]: Boogie Preprocessor took 23.38 ms. Allocated memory is still 319.8 MB. Free memory was 272.9 MB in the beginning and 270.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 13:26:28,559 INFO L168 Benchmark]: RCFGBuilder took 472.15 ms. Allocated memory is still 319.8 MB. Free memory was 270.4 MB in the beginning and 243.5 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 13:26:28,560 INFO L168 Benchmark]: TraceAbstraction took 655073.42 ms. Allocated memory was 319.8 MB in the beginning and 9.7 GB in the end (delta: 9.4 GB). Free memory was 243.5 MB in the beginning and 4.9 GB in the end (delta: -4.6 GB). Peak memory consumption was 6.4 GB. Max. memory is 14.2 GB. [2020-10-11 13:26:28,569 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 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 652.19 ms. Allocated memory was 253.2 MB in the beginning and 319.8 MB in the end (delta: 66.6 MB). Free memory was 209.2 MB in the beginning and 275.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.25 ms. Allocated memory is still 319.8 MB. Free memory was 275.4 MB in the beginning and 272.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 23.38 ms. Allocated memory is still 319.8 MB. Free memory was 272.9 MB in the beginning and 270.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 472.15 ms. Allocated memory is still 319.8 MB. Free memory was 270.4 MB in the beginning and 243.5 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 655073.42 ms. Allocated memory was 319.8 MB in the beginning and 9.7 GB in the end (delta: 9.4 GB). Free memory was 243.5 MB in the beginning and 4.9 GB in the end (delta: -4.6 GB). Peak memory consumption was 6.4 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 195 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 2 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 35 PlacesBefore, 11 PlacesAfterwards, 35 TransitionsBefore, 8 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 34 TotalNumberOfCompositions, 295 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 866 VarBasedMoverChecksPositive, 58 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 49 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 205 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 52 PlacesBefore, 28 PlacesAfterwards, 52 TransitionsBefore, 25 TransitionsAfterwards, 1184 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 34 TotalNumberOfCompositions, 3194 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1668 VarBasedMoverChecksPositive, 82 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 65 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 359 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 69 PlacesBefore, 39 PlacesAfterwards, 69 TransitionsBefore, 35 TransitionsAfterwards, 2592 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 43 TotalNumberOfCompositions, 9163 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2602 VarBasedMoverChecksPositive, 151 VarBasedMoverChecksNegative, 52 SemBasedMoverChecksPositive, 99 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 475 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 86 PlacesBefore, 50 PlacesAfterwards, 86 TransitionsBefore, 45 TransitionsAfterwards, 4544 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 5 ChoiceCompositions, 54 TotalNumberOfCompositions, 16244 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4111 VarBasedMoverChecksPositive, 405 VarBasedMoverChecksNegative, 270 SemBasedMoverChecksPositive, 135 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.7s, 951 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 103 PlacesBefore, 61 PlacesAfterwards, 103 TransitionsBefore, 56 TransitionsAfterwards, 7040 CoEnabledTransitionPairs, 7 FixpointIterations, 7 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 5 ChoiceCompositions, 65 TotalNumberOfCompositions, 36976 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5905 VarBasedMoverChecksPositive, 403 VarBasedMoverChecksNegative, 219 SemBasedMoverChecksPositive, 184 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.0s, 1247 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 120 PlacesBefore, 72 PlacesAfterwards, 120 TransitionsBefore, 66 TransitionsAfterwards, 10080 CoEnabledTransitionPairs, 7 FixpointIterations, 7 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 74 TotalNumberOfCompositions, 55327 MoverChecksTotal - TimeoutResultAtElement [Line: 698]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 698). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 72 places, 66 transitions, 192 flow. Already constructed 74599 states. Currently 25047 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 654.8s, OverallIterations: 17, TraceHistogramMax: 6, AutomataDifference: 112.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 283.8s, HoareTripleCheckerStatistics: 861 SDtfs, 1522 SDslu, 1274 SDs, 0 SdLazy, 1802 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=560016occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 256.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 824945 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 12459 SizeOfPredicates, 3 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 24/26 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 could not prove your program: Timeout Completed graceful shutdown