/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 03:23:48,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 03:23:48,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 03:23:48,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 03:23:48,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 03:23:48,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 03:23:48,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 03:23:48,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 03:23:48,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 03:23:48,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 03:23:48,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 03:23:48,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 03:23:48,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 03:23:48,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 03:23:48,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 03:23:48,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 03:23:48,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 03:23:48,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 03:23:48,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 03:23:48,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 03:23:48,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 03:23:48,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 03:23:48,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 03:23:48,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 03:23:48,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 03:23:48,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 03:23:48,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 03:23:48,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 03:23:48,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 03:23:48,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 03:23:48,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 03:23:48,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 03:23:48,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 03:23:48,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 03:23:48,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 03:23:48,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 03:23:48,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 03:23:48,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 03:23:48,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 03:23:48,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 03:23:48,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 03:23:48,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 03:23:48,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 03:23:48,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 03:23:48,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 03:23:48,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 03:23:48,699 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 03:23:48,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 03:23:48,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 03:23:48,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 03:23:48,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 03:23:48,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 03:23:48,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 03:23:48,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 03:23:48,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 03:23:48,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 03:23:48,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 03:23:48,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 03:23:48,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 03:23:48,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 03:23:48,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 03:23:48,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 03:23:48,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 03:23:48,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 03:23:48,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 03:23:48,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 03:23:48,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 03:23:48,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 03:23:48,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 03:23:48,706 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 03:23:48,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 03:23:49,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 03:23:49,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 03:23:49,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 03:23:49,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 03:23:49,069 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 03:23:49,070 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-16 03:23:49,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327958ad6/d23e91c9dd5c4e9ab9fe4558d2b41a63/FLAGea54fa740 [2020-10-16 03:23:49,709 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 03:23:49,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-16 03:23:49,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327958ad6/d23e91c9dd5c4e9ab9fe4558d2b41a63/FLAGea54fa740 [2020-10-16 03:23:49,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327958ad6/d23e91c9dd5c4e9ab9fe4558d2b41a63 [2020-10-16 03:23:49,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 03:23:49,969 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 03:23:49,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 03:23:49,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 03:23:49,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 03:23:49,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:23:49" (1/1) ... [2020-10-16 03:23:49,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87aaa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:49, skipping insertion in model container [2020-10-16 03:23:49,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:23:49" (1/1) ... [2020-10-16 03:23:49,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 03:23:50,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 03:23:50,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:23:50,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 03:23:50,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:23:50,663 INFO L208 MainTranslator]: Completed translation [2020-10-16 03:23:50,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50 WrapperNode [2020-10-16 03:23:50,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 03:23:50,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 03:23:50,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 03:23:50,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 03:23:50,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 03:23:50,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 03:23:50,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 03:23:50,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 03:23:50,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (1/1) ... [2020-10-16 03:23:50,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 03:23:50,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 03:23:50,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 03:23:50,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 03:23:50,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (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 [2020-10-16 03:23:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 03:23:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 03:23:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 03:23:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 03:23:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 03:23:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 03:23:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 03:23:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 03:23:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 03:23:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 03:23:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 03:23:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 03:23:50,827 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 03:23:51,218 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 03:23:51,218 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-16 03:23:51,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:23:51 BoogieIcfgContainer [2020-10-16 03:23:51,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 03:23:51,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 03:23:51,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 03:23:51,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 03:23:51,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:23:49" (1/3) ... [2020-10-16 03:23:51,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666d16d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:23:51, skipping insertion in model container [2020-10-16 03:23:51,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:23:50" (2/3) ... [2020-10-16 03:23:51,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666d16d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:23:51, skipping insertion in model container [2020-10-16 03:23:51,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:23:51" (3/3) ... [2020-10-16 03:23:51,229 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2020-10-16 03:23:51,240 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 03:23:51,248 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 03:23:51,249 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 03:23:51,277 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,278 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,278 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,282 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,282 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,283 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,283 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,283 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,283 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,284 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,284 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,290 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,290 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,291 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,297 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,297 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:23:51,325 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 03:23:51,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:23:51,348 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:23:51,348 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:23:51,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:23:51,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:23:51,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:23:51,349 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:23:51,349 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:23:51,363 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 178 flow [2020-10-16 03:23:51,413 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-16 03:23:51,413 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:51,417 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 2/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2020-10-16 03:23:51,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 78 transitions, 178 flow [2020-10-16 03:23:51,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 67 transitions, 152 flow [2020-10-16 03:23:51,426 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:23:51,429 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 67 transitions, 152 flow [2020-10-16 03:23:51,432 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 67 transitions, 152 flow [2020-10-16 03:23:51,433 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 67 transitions, 152 flow [2020-10-16 03:23:51,474 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2020-10-16 03:23:51,475 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:51,476 INFO L80 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 69 events. 1/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2020-10-16 03:23:51,480 INFO L117 LiptonReduction]: Number of co-enabled transitions 680 [2020-10-16 03:23:52,776 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-16 03:23:53,408 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-16 03:23:53,599 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-16 03:23:53,607 INFO L132 LiptonReduction]: Checked pairs total: 3107 [2020-10-16 03:23:53,607 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-16 03:23:53,610 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2186 [2020-10-16 03:23:53,621 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2020-10-16 03:23:53,622 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:23:53,622 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:53,623 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:53,623 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:53,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:53,631 INFO L82 PathProgramCache]: Analyzing trace with hash 977701755, now seen corresponding path program 1 times [2020-10-16 03:23:53,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:53,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579851607] [2020-10-16 03:23:53,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:54,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579851607] [2020-10-16 03:23:54,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:54,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 03:23:54,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489465250] [2020-10-16 03:23:54,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 03:23:54,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:54,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 03:23:54,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-16 03:23:54,082 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2020-10-16 03:23:54,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 72 flow. Second operand 6 states. [2020-10-16 03:23:54,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:54,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2020-10-16 03:23:54,087 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:54,171 INFO L129 PetriNetUnfolder]: 3/71 cut-off events. [2020-10-16 03:23:54,171 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-16 03:23:54,171 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 71 events. 3/71 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 248 event pairs, 0 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 23. Up to 7 conditions per place. [2020-10-16 03:23:54,173 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 5 selfloop transitions, 5 changer transitions 2/33 dead transitions. [2020-10-16 03:23:54,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 108 flow [2020-10-16 03:23:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 03:23:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 03:23:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 685 transitions. [2020-10-16 03:23:54,195 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8292978208232445 [2020-10-16 03:23:54,196 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 685 transitions. [2020-10-16 03:23:54,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 685 transitions. [2020-10-16 03:23:54,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:54,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 685 transitions. [2020-10-16 03:23:54,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 03:23:54,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 03:23:54,220 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 03:23:54,222 INFO L185 Difference]: Start difference. First operand has 32 places, 27 transitions, 72 flow. Second operand 7 states and 685 transitions. [2020-10-16 03:23:54,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 108 flow [2020-10-16 03:23:54,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 03:23:54,229 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 91 flow [2020-10-16 03:23:54,232 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=91, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2020-10-16 03:23:54,233 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2020-10-16 03:23:54,234 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 91 flow [2020-10-16 03:23:54,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 03:23:54,234 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:54,234 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:54,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 03:23:54,235 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:54,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1148923283, now seen corresponding path program 1 times [2020-10-16 03:23:54,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:54,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573279888] [2020-10-16 03:23:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:54,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573279888] [2020-10-16 03:23:54,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:54,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:23:54,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671688134] [2020-10-16 03:23:54,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:23:54,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:54,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:23:54,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:23:54,313 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 118 [2020-10-16 03:23:54,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 91 flow. Second operand 3 states. [2020-10-16 03:23:54,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:54,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 118 [2020-10-16 03:23:54,315 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:54,362 INFO L129 PetriNetUnfolder]: 3/51 cut-off events. [2020-10-16 03:23:54,362 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 03:23:54,363 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 51 events. 3/51 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 2 based on Foata normal form. 6/57 useless extension candidates. Maximal degree in co-relation 81. Up to 10 conditions per place. [2020-10-16 03:23:54,363 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 1 selfloop transitions, 8 changer transitions 1/28 dead transitions. [2020-10-16 03:23:54,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 98 flow [2020-10-16 03:23:54,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:23:54,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:23:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2020-10-16 03:23:54,366 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.731638418079096 [2020-10-16 03:23:54,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2020-10-16 03:23:54,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2020-10-16 03:23:54,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:54,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2020-10-16 03:23:54,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:23:54,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:23:54,369 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:23:54,369 INFO L185 Difference]: Start difference. First operand has 38 places, 30 transitions, 91 flow. Second operand 3 states and 259 transitions. [2020-10-16 03:23:54,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 98 flow [2020-10-16 03:23:54,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 92 flow, removed 2 selfloop flow, removed 3 redundant places. [2020-10-16 03:23:54,371 INFO L241 Difference]: Finished difference. Result has 34 places, 27 transitions, 84 flow [2020-10-16 03:23:54,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2020-10-16 03:23:54,372 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2020-10-16 03:23:54,372 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 84 flow [2020-10-16 03:23:54,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:23:54,372 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:54,373 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:54,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 03:23:54,373 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:54,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:54,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1235276597, now seen corresponding path program 2 times [2020-10-16 03:23:54,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:54,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396060582] [2020-10-16 03:23:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:54,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:54,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396060582] [2020-10-16 03:23:54,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:54,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 03:23:54,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189978385] [2020-10-16 03:23:54,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:23:54,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:54,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:23:54,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:23:54,446 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 118 [2020-10-16 03:23:54,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 84 flow. Second operand 5 states. [2020-10-16 03:23:54,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:54,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 118 [2020-10-16 03:23:54,447 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:54,490 INFO L129 PetriNetUnfolder]: 2/49 cut-off events. [2020-10-16 03:23:54,490 INFO L130 PetriNetUnfolder]: For 3/8 co-relation queries the response was YES. [2020-10-16 03:23:54,490 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 49 events. 2/49 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 2 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 55. Up to 9 conditions per place. [2020-10-16 03:23:54,491 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 4 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2020-10-16 03:23:54,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 97 flow [2020-10-16 03:23:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:23:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:23:54,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 364 transitions. [2020-10-16 03:23:54,493 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6169491525423729 [2020-10-16 03:23:54,494 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 364 transitions. [2020-10-16 03:23:54,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 364 transitions. [2020-10-16 03:23:54,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:54,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 364 transitions. [2020-10-16 03:23:54,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:23:54,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:23:54,497 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:23:54,497 INFO L185 Difference]: Start difference. First operand has 34 places, 27 transitions, 84 flow. Second operand 5 states and 364 transitions. [2020-10-16 03:23:54,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 97 flow [2020-10-16 03:23:54,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 85 flow, removed 1 selfloop flow, removed 3 redundant places. [2020-10-16 03:23:54,499 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 77 flow [2020-10-16 03:23:54,500 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2020-10-16 03:23:54,500 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2020-10-16 03:23:54,500 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 77 flow [2020-10-16 03:23:54,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:23:54,500 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:23:54,501 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:23:54,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 03:23:54,501 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:23:54,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:23:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1309879421, now seen corresponding path program 2 times [2020-10-16 03:23:54,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:23:54,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545294003] [2020-10-16 03:23:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:23:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:23:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:23:54,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545294003] [2020-10-16 03:23:54,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:23:54,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 03:23:54,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695549197] [2020-10-16 03:23:54,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 03:23:54,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:23:54,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 03:23:54,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-16 03:23:54,619 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2020-10-16 03:23:54,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 77 flow. Second operand 6 states. [2020-10-16 03:23:54,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:23:54,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2020-10-16 03:23:54,621 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:23:54,674 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2020-10-16 03:23:54,675 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 03:23:54,675 INFO L80 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 48 events. 2/48 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 2 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 56. Up to 9 conditions per place. [2020-10-16 03:23:54,676 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2020-10-16 03:23:54,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 25 transitions, 85 flow [2020-10-16 03:23:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 03:23:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 03:23:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 582 transitions. [2020-10-16 03:23:54,679 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8220338983050848 [2020-10-16 03:23:54,679 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 582 transitions. [2020-10-16 03:23:54,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 582 transitions. [2020-10-16 03:23:54,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:23:54,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 582 transitions. [2020-10-16 03:23:54,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 03:23:54,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 03:23:54,684 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 03:23:54,684 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 77 flow. Second operand 6 states and 582 transitions. [2020-10-16 03:23:54,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 25 transitions, 85 flow [2020-10-16 03:23:54,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 77 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 03:23:54,685 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2020-10-16 03:23:54,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2020-10-16 03:23:54,686 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2020-10-16 03:23:54,686 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2020-10-16 03:23:54,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 03:23:54,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 03:23:54,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:23:54 BasicIcfg [2020-10-16 03:23:54,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 03:23:54,693 INFO L168 Benchmark]: Toolchain (without parser) took 4724.45 ms. Allocated memory was 254.8 MB in the beginning and 376.4 MB in the end (delta: 121.6 MB). Free memory was 209.9 MB in the beginning and 221.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 110.6 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:54,693 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 254.8 MB. Free memory is still 231.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 03:23:54,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.02 ms. Allocated memory was 254.8 MB in the beginning and 326.1 MB in the end (delta: 71.3 MB). Free memory was 209.9 MB in the beginning and 282.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:54,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.86 ms. Allocated memory is still 326.1 MB. Free memory was 282.1 MB in the beginning and 279.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:54,696 INFO L168 Benchmark]: Boogie Preprocessor took 29.26 ms. Allocated memory is still 326.1 MB. Free memory was 279.6 MB in the beginning and 277.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:54,697 INFO L168 Benchmark]: RCFGBuilder took 474.10 ms. Allocated memory is still 326.1 MB. Free memory was 277.1 MB in the beginning and 252.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:54,698 INFO L168 Benchmark]: TraceAbstraction took 3469.58 ms. Allocated memory was 326.1 MB in the beginning and 376.4 MB in the end (delta: 50.3 MB). Free memory was 252.7 MB in the beginning and 221.0 MB in the end (delta: 31.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:54,702 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 254.8 MB. Free memory is still 231.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 694.02 ms. Allocated memory was 254.8 MB in the beginning and 326.1 MB in the end (delta: 71.3 MB). Free memory was 209.9 MB in the beginning and 282.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.86 ms. Allocated memory is still 326.1 MB. Free memory was 282.1 MB in the beginning and 279.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 29.26 ms. Allocated memory is still 326.1 MB. Free memory was 279.6 MB in the beginning and 277.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 474.10 ms. Allocated memory is still 326.1 MB. Free memory was 277.1 MB in the beginning and 252.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3469.58 ms. Allocated memory was 326.1 MB in the beginning and 376.4 MB in the end (delta: 50.3 MB). Free memory was 252.7 MB in the beginning and 221.0 MB in the end (delta: 31.7 MB). Peak memory consumption was 82.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 441 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 163 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 72 PlacesBefore, 32 PlacesAfterwards, 67 TransitionsBefore, 27 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 3107 MoverChecksTotal - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 13 SDtfs, 14 SDslu, 8 SDs, 0 SdLazy, 65 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 12288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...