/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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 18:27:46,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 18:27:46,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 18:27:46,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 18:27:46,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 18:27:46,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 18:27:46,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 18:27:46,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 18:27:46,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 18:27:46,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 18:27:46,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 18:27:46,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 18:27:46,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 18:27:46,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 18:27:46,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 18:27:46,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 18:27:46,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 18:27:46,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 18:27:46,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 18:27:46,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 18:27:46,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 18:27:46,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 18:27:46,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 18:27:46,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 18:27:46,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 18:27:46,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 18:27:46,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 18:27:46,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 18:27:46,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 18:27:46,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 18:27:46,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 18:27:46,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 18:27:46,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 18:27:46,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 18:27:46,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 18:27:46,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 18:27:46,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 18:27:46,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 18:27:46,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 18:27:46,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 18:27:46,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 18:27:46,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 18:27:46,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 18:27:46,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 18:27:46,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 18:27:46,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 18:27:46,683 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 18:27:46,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 18:27:46,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 18:27:46,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 18:27:46,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 18:27:46,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 18:27:46,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 18:27:46,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 18:27:46,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 18:27:46,686 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 18:27:46,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 18:27:46,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 18:27:46,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 18:27:46,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 18:27:46,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 18:27:46,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 18:27:46,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 18:27:46,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 18:27:46,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 18:27:46,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 18:27:46,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 18:27:46,688 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 18:27:46,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 18:27:46,688 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 18:27:46,689 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 18:27:46,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 18:27:46,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 18:27:47,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 18:27:47,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 18:27:47,015 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 18:27:47,016 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 18:27:47,016 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-09 18:27:47,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfb262402/7e1a7ce92d9f467bb0c7d53f503e1c4a/FLAGfe97edadf [2020-10-09 18:27:47,696 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 18:27:47,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-09 18:27:47,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfb262402/7e1a7ce92d9f467bb0c7d53f503e1c4a/FLAGfe97edadf [2020-10-09 18:27:47,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfb262402/7e1a7ce92d9f467bb0c7d53f503e1c4a [2020-10-09 18:27:47,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 18:27:47,881 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 18:27:47,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 18:27:47,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 18:27:47,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 18:27:47,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 06:27:47" (1/1) ... [2020-10-09 18:27:47,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63407a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:47, skipping insertion in model container [2020-10-09 18:27:47,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 06:27:47" (1/1) ... [2020-10-09 18:27:47,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 18:27:47,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 18:27:48,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 18:27:48,712 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 18:27:48,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 18:27:49,218 INFO L208 MainTranslator]: Completed translation [2020-10-09 18:27:49,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49 WrapperNode [2020-10-09 18:27:49,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 18:27:49,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 18:27:49,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 18:27:49,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 18:27:49,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 18:27:49,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 18:27:49,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 18:27:49,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 18:27:49,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (1/1) ... [2020-10-09 18:27:49,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 18:27:49,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 18:27:49,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 18:27:49,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 18:27:49,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (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 [2020-10-09 18:27:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 18:27:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 18:27:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-09 18:27:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-09 18:27:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 18:27:49,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 18:27:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 18:27:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-09 18:27:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-09 18:27:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 18:27:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-09 18:27:49,408 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 18:27:49,930 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 18:27:49,931 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-09 18:27:49,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 06:27:49 BoogieIcfgContainer [2020-10-09 18:27:49,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 18:27:49,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 18:27:49,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 18:27:49,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 18:27:49,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 06:27:47" (1/3) ... [2020-10-09 18:27:49,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d887bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 06:27:49, skipping insertion in model container [2020-10-09 18:27:49,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 06:27:49" (2/3) ... [2020-10-09 18:27:49,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d887bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 06:27:49, skipping insertion in model container [2020-10-09 18:27:49,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 06:27:49" (3/3) ... [2020-10-09 18:27:49,941 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-10-09 18:27:49,953 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 18:27:49,961 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-09 18:27:49,962 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 18:27:49,988 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,989 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,989 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,990 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,991 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,991 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,991 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,991 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,992 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,992 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,995 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,996 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,996 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,996 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,996 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,996 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:49,997 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 18:27:50,018 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 18:27:50,036 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 18:27:50,036 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 18:27:50,037 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 18:27:50,037 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 18:27:50,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 18:27:50,037 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 18:27:50,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 18:27:50,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 18:27:50,050 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions, 176 flow [2020-10-09 18:27:50,093 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2020-10-09 18:27:50,094 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 18:27:50,098 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-10-09 18:27:50,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 84 transitions, 176 flow [2020-10-09 18:27:50,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 76 transitions, 158 flow [2020-10-09 18:27:50,112 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2020-10-09 18:27:50,113 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 18:27:50,113 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:27:50,114 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] [2020-10-09 18:27:50,114 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:27:50,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:27:50,121 INFO L82 PathProgramCache]: Analyzing trace with hash 663703428, now seen corresponding path program 1 times [2020-10-09 18:27:50,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:27:50,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128457461] [2020-10-09 18:27:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 18:27:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:27:50,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-09 18:27:50,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:27:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:50,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:27:50,384 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:27:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:50,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128457461] [2020-10-09 18:27:50,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:27:50,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-09 18:27:50,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751567513] [2020-10-09 18:27:50,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 18:27:50,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:27:50,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 18:27:50,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 18:27:50,658 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2020-10-09 18:27:50,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 158 flow. Second operand 5 states. [2020-10-09 18:27:50,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:27:50,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2020-10-09 18:27:50,662 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:27:50,743 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2020-10-09 18:27:50,743 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 18:27:50,744 INFO L80 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 72 events. 0/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 2/71 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2020-10-09 18:27:50,745 INFO L132 encePairwiseOnDemand]: 73/84 looper letters, 7 selfloop transitions, 9 changer transitions 0/72 dead transitions. [2020-10-09 18:27:50,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 72 transitions, 182 flow [2020-10-09 18:27:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 18:27:50,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-09 18:27:50,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 459 transitions. [2020-10-09 18:27:50,765 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7806122448979592 [2020-10-09 18:27:50,766 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 459 transitions. [2020-10-09 18:27:50,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 459 transitions. [2020-10-09 18:27:50,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:27:50,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 459 transitions. [2020-10-09 18:27:50,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-09 18:27:50,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-09 18:27:50,786 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-09 18:27:50,788 INFO L185 Difference]: Start difference. First operand has 78 places, 76 transitions, 158 flow. Second operand 7 states and 459 transitions. [2020-10-09 18:27:50,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 72 transitions, 182 flow [2020-10-09 18:27:50,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-09 18:27:50,799 INFO L241 Difference]: Finished difference. Result has 80 places, 72 transitions, 164 flow [2020-10-09 18:27:50,802 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=164, PETRI_PLACES=80, PETRI_TRANSITIONS=72} [2020-10-09 18:27:50,803 INFO L341 CegarLoopForPetriNet]: 78 programPoint places, 2 predicate places. [2020-10-09 18:27:50,803 INFO L481 AbstractCegarLoop]: Abstraction has has 80 places, 72 transitions, 164 flow [2020-10-09 18:27:50,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 18:27:50,804 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:27:50,804 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, 1, 1, 1, 1, 1, 1] [2020-10-09 18:27:51,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 18:27:51,017 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:27:51,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:27:51,018 INFO L82 PathProgramCache]: Analyzing trace with hash -611752670, now seen corresponding path program 1 times [2020-10-09 18:27:51,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:27:51,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098815827] [2020-10-09 18:27:51,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 18:27:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:27:51,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-09 18:27:51,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:27:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:51,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:27:51,215 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:27:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:51,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098815827] [2020-10-09 18:27:51,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:27:51,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-09 18:27:51,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485399785] [2020-10-09 18:27:51,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 18:27:51,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:27:51,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 18:27:51,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 18:27:51,405 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2020-10-09 18:27:51,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 72 transitions, 164 flow. Second operand 5 states. [2020-10-09 18:27:51,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:27:51,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2020-10-09 18:27:51,406 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:27:51,465 INFO L129 PetriNetUnfolder]: 0/70 cut-off events. [2020-10-09 18:27:51,466 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-09 18:27:51,466 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 70 events. 0/70 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2020-10-09 18:27:51,467 INFO L132 encePairwiseOnDemand]: 80/84 looper letters, 11 selfloop transitions, 0 changer transitions 6/70 dead transitions. [2020-10-09 18:27:51,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 70 transitions, 190 flow [2020-10-09 18:27:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 18:27:51,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-09 18:27:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions. [2020-10-09 18:27:51,473 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7880952380952381 [2020-10-09 18:27:51,473 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 331 transitions. [2020-10-09 18:27:51,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 331 transitions. [2020-10-09 18:27:51,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:27:51,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 331 transitions. [2020-10-09 18:27:51,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-09 18:27:51,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-09 18:27:51,480 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-09 18:27:51,480 INFO L185 Difference]: Start difference. First operand has 80 places, 72 transitions, 164 flow. Second operand 5 states and 331 transitions. [2020-10-09 18:27:51,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 70 transitions, 190 flow [2020-10-09 18:27:51,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 70 transitions, 172 flow, removed 0 selfloop flow, removed 6 redundant places. [2020-10-09 18:27:51,488 INFO L241 Difference]: Finished difference. Result has 76 places, 64 transitions, 130 flow [2020-10-09 18:27:51,488 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=76, PETRI_TRANSITIONS=64} [2020-10-09 18:27:51,489 INFO L341 CegarLoopForPetriNet]: 78 programPoint places, -2 predicate places. [2020-10-09 18:27:51,489 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 130 flow [2020-10-09 18:27:51,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 18:27:51,489 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:27:51,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:27:51,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 18:27:51,703 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:27:51,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:27:51,703 INFO L82 PathProgramCache]: Analyzing trace with hash -276527378, now seen corresponding path program 1 times [2020-10-09 18:27:51,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:27:51,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644928096] [2020-10-09 18:27:51,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 18:27:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:27:51,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-09 18:27:51,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:27:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:51,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:27:51,843 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:27:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:51,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644928096] [2020-10-09 18:27:51,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:27:51,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-09 18:27:51,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982179825] [2020-10-09 18:27:51,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 18:27:51,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:27:51,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 18:27:51,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 18:27:51,991 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2020-10-09 18:27:51,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 64 transitions, 130 flow. Second operand 5 states. [2020-10-09 18:27:51,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:27:51,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2020-10-09 18:27:51,992 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:27:52,051 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2020-10-09 18:27:52,052 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 18:27:52,052 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-09 18:27:52,052 INFO L132 encePairwiseOnDemand]: 79/84 looper letters, 4 selfloop transitions, 4 changer transitions 5/62 dead transitions. [2020-10-09 18:27:52,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 142 flow [2020-10-09 18:27:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 18:27:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-09 18:27:52,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 429 transitions. [2020-10-09 18:27:52,057 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8511904761904762 [2020-10-09 18:27:52,057 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 429 transitions. [2020-10-09 18:27:52,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 429 transitions. [2020-10-09 18:27:52,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:27:52,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 429 transitions. [2020-10-09 18:27:52,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-09 18:27:52,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-09 18:27:52,061 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-09 18:27:52,061 INFO L185 Difference]: Start difference. First operand has 76 places, 64 transitions, 130 flow. Second operand 6 states and 429 transitions. [2020-10-09 18:27:52,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 142 flow [2020-10-09 18:27:52,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 62 transitions, 142 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 18:27:52,065 INFO L241 Difference]: Finished difference. Result has 70 places, 57 transitions, 124 flow [2020-10-09 18:27:52,065 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2020-10-09 18:27:52,066 INFO L341 CegarLoopForPetriNet]: 78 programPoint places, -8 predicate places. [2020-10-09 18:27:52,066 INFO L481 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 124 flow [2020-10-09 18:27:52,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 18:27:52,066 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 18:27:52,066 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 18:27:52,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 18:27:52,279 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 18:27:52,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 18:27:52,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1351678022, now seen corresponding path program 1 times [2020-10-09 18:27:52,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 18:27:52,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794503943] [2020-10-09 18:27:52,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 18:27:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 18:27:52,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-09 18:27:52,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 18:27:52,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:52,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 18:27:52,423 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 18:27:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 18:27:52,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794503943] [2020-10-09 18:27:52,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 18:27:52,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-09 18:27:52,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486039674] [2020-10-09 18:27:52,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 18:27:52,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 18:27:52,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 18:27:52,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 18:27:52,693 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2020-10-09 18:27:52,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 124 flow. Second operand 5 states. [2020-10-09 18:27:52,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 18:27:52,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2020-10-09 18:27:52,694 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 18:27:52,723 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2020-10-09 18:27:52,723 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 18:27:52,723 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 55 events. 0/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2020-10-09 18:27:52,724 INFO L132 encePairwiseOnDemand]: 80/84 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2020-10-09 18:27:52,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 55 transitions, 140 flow [2020-10-09 18:27:52,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 18:27:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-09 18:27:52,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2020-10-09 18:27:52,726 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7761904761904762 [2020-10-09 18:27:52,726 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 326 transitions. [2020-10-09 18:27:52,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 326 transitions. [2020-10-09 18:27:52,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 18:27:52,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 326 transitions. [2020-10-09 18:27:52,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-09 18:27:52,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-09 18:27:52,728 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-09 18:27:52,729 INFO L185 Difference]: Start difference. First operand has 70 places, 57 transitions, 124 flow. Second operand 5 states and 326 transitions. [2020-10-09 18:27:52,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 55 transitions, 140 flow [2020-10-09 18:27:52,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 133 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-09 18:27:52,730 INFO L241 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2020-10-09 18:27:52,731 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2020-10-09 18:27:52,731 INFO L341 CegarLoopForPetriNet]: 78 programPoint places, -15 predicate places. [2020-10-09 18:27:52,731 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2020-10-09 18:27:52,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 18:27:52,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 18:27:52,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 06:27:52 BasicIcfg [2020-10-09 18:27:52,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 18:27:52,955 INFO L168 Benchmark]: Toolchain (without parser) took 5073.64 ms. Allocated memory was 252.7 MB in the beginning and 427.8 MB in the end (delta: 175.1 MB). Free memory was 206.0 MB in the beginning and 378.8 MB in the end (delta: -172.8 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.2 GB. [2020-10-09 18:27:52,956 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-09 18:27:52,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1337.24 ms. Allocated memory was 252.7 MB in the beginning and 358.1 MB in the end (delta: 105.4 MB). Free memory was 206.0 MB in the beginning and 322.7 MB in the end (delta: -116.7 MB). Peak memory consumption was 109.9 MB. Max. memory is 14.2 GB. [2020-10-09 18:27:52,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.04 ms. Allocated memory is still 358.1 MB. Free memory was 322.7 MB in the beginning and 318.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.2 GB. [2020-10-09 18:27:52,966 INFO L168 Benchmark]: Boogie Preprocessor took 47.10 ms. Allocated memory is still 358.1 MB. Free memory was 318.3 MB in the beginning and 316.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.2 GB. [2020-10-09 18:27:52,967 INFO L168 Benchmark]: RCFGBuilder took 594.38 ms. Allocated memory is still 358.1 MB. Free memory was 316.2 MB in the beginning and 276.4 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 14.2 GB. [2020-10-09 18:27:52,968 INFO L168 Benchmark]: TraceAbstraction took 3018.28 ms. Allocated memory was 358.1 MB in the beginning and 427.8 MB in the end (delta: 69.7 MB). Free memory was 276.4 MB in the beginning and 378.8 MB in the end (delta: -102.4 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 18:27:52,978 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 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1337.24 ms. Allocated memory was 252.7 MB in the beginning and 358.1 MB in the end (delta: 105.4 MB). Free memory was 206.0 MB in the beginning and 322.7 MB in the end (delta: -116.7 MB). Peak memory consumption was 109.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 71.04 ms. Allocated memory is still 358.1 MB. Free memory was 322.7 MB in the beginning and 318.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 47.10 ms. Allocated memory is still 358.1 MB. Free memory was 318.3 MB in the beginning and 316.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.2 GB. * RCFGBuilder took 594.38 ms. Allocated memory is still 358.1 MB. Free memory was 316.2 MB in the beginning and 276.4 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3018.28 ms. Allocated memory was 358.1 MB in the beginning and 427.8 MB in the end (delta: 69.7 MB). Free memory was 276.4 MB in the beginning and 378.8 MB in the end (delta: -102.4 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 4 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: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 76 SDtfs, 125 SDslu, 155 SDs, 0 SdLazy, 228 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 296 GetRequests, 266 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred 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, 0.3s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 13778 SizeOfPredicates, 12 NumberOfNonLiveVariables, 333 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...