/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 14:37:24,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 14:37:24,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 14:37:24,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 14:37:24,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 14:37:24,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 14:37:24,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 14:37:24,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 14:37:24,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 14:37:24,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 14:37:24,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 14:37:24,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 14:37:24,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 14:37:24,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 14:37:24,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 14:37:24,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 14:37:24,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 14:37:24,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 14:37:24,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 14:37:24,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 14:37:24,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 14:37:24,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 14:37:24,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 14:37:24,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 14:37:24,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 14:37:24,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 14:37:24,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 14:37:24,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 14:37:24,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 14:37:24,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 14:37:24,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 14:37:24,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 14:37:24,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 14:37:24,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 14:37:24,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 14:37:24,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 14:37:24,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 14:37:24,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 14:37:24,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 14:37:24,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 14:37:24,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 14:37:24,812 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-NoLbe.epf [2021-06-10 14:37:24,838 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 14:37:24,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 14:37:24,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 14:37:24,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 14:37:24,840 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 14:37:24,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 14:37:24,840 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 14:37:24,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 14:37:24,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 14:37:24,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 14:37:24,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 14:37:24,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 14:37:24,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 14:37:24,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:37:24,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 14:37:24,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 14:37:24,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 14:37:24,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 14:37:24,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 14:37:24,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 14:37:24,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 14:37:24,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 14:37:25,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 14:37:25,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 14:37:25,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 14:37:25,083 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-10 14:37:25,083 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-10 14:37:25,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Safe.bpl [2021-06-10 14:37:25,084 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Safe.bpl' [2021-06-10 14:37:25,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 14:37:25,100 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-10 14:37:25,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 14:37:25,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 14:37:25,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 14:37:25,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 14:37:25,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 14:37:25,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 14:37:25,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 14:37:25,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/1) ... [2021-06-10 14:37:25,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 14:37:25,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 14:37:25,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 14:37:25,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 14:37:25,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (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 [2021-06-10 14:37:25,178 INFO L130 BoogieDeclarations]: Found specification of procedure decrement [2021-06-10 14:37:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure decrement [2021-06-10 14:37:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2021-06-10 14:37:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2021-06-10 14:37:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 14:37:25,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 14:37:25,180 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 14:37:25,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 14:37:25,289 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-10 14:37:25,289 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:37:25 BoogieIcfgContainer [2021-06-10 14:37:25,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 14:37:25,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 14:37:25,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 14:37:25,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 14:37:25,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:25" (1/2) ... [2021-06-10 14:37:25,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6c8a23 and model type ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:37:25, skipping insertion in model container [2021-06-10 14:37:25,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:37:25" (2/2) ... [2021-06-10 14:37:25,295 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest-Safe.bpl [2021-06-10 14:37:25,299 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 14:37:25,301 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 14:37:25,302 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 14:37:25,318 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,318 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,318 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,318 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,319 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,319 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,319 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,320 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,321 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,324 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:25,329 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-10 14:37:25,340 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-10 14:37:25,354 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 14:37:25,354 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 14:37:25,354 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 14:37:25,354 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 14:37:25,355 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 14:37:25,355 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 14:37:25,355 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 14:37:25,355 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 14:37:25,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 14 transitions, 44 flow [2021-06-10 14:37:25,372 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-10 14:37:25,372 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 14:37:25,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-10 14:37:25,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 20 places, 14 transitions, 44 flow [2021-06-10 14:37:25,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 10 transitions, 32 flow [2021-06-10 14:37:25,378 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-06-10 14:37:25,379 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 14:37:25,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:37:25,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:37:25,379 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:37:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:37:25,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1338516581, now seen corresponding path program 1 times [2021-06-10 14:37:25,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:37:25,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999014855] [2021-06-10 14:37:25,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:37:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:37:25,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:37:25,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:37:25,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:37:25,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:37:25,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:37:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:37:25,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-10 14:37:25,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:37:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 14:37:25,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999014855] [2021-06-10 14:37:25,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:37:25,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 14:37:25,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779521200] [2021-06-10 14:37:25,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 14:37:25,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:37:25,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 14:37:25,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 14:37:25,588 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 14 [2021-06-10 14:37:25,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 10 transitions, 32 flow. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:37:25,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 14 [2021-06-10 14:37:25,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:37:25,669 INFO L129 PetriNetUnfolder]: 3/17 cut-off events. [2021-06-10 14:37:25,670 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-06-10 14:37:25,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 17 events. 3/17 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 30. Up to 7 conditions per place. [2021-06-10 14:37:25,671 INFO L132 encePairwiseOnDemand]: 9/14 looper letters, 6 selfloop transitions, 3 changer transitions 1/13 dead transitions. [2021-06-10 14:37:25,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 64 flow [2021-06-10 14:37:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 14:37:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 14:37:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2021-06-10 14:37:25,681 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2021-06-10 14:37:25,682 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 47 transitions. [2021-06-10 14:37:25,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 47 transitions. [2021-06-10 14:37:25,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:37:25,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 47 transitions. [2021-06-10 14:37:25,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,689 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,690 INFO L185 Difference]: Start difference. First operand has 16 places, 10 transitions, 32 flow. Second operand 6 states and 47 transitions. [2021-06-10 14:37:25,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 64 flow [2021-06-10 14:37:25,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 52 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 14:37:25,697 INFO L241 Difference]: Finished difference. Result has 18 places, 9 transitions, 29 flow [2021-06-10 14:37:25,698 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=29, PETRI_PLACES=18, PETRI_TRANSITIONS=9} [2021-06-10 14:37:25,698 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2021-06-10 14:37:25,699 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 9 transitions, 29 flow [2021-06-10 14:37:25,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:37:25,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:37:25,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 14:37:25,699 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:37:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:37:25,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1338455046, now seen corresponding path program 1 times [2021-06-10 14:37:25,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:37:25,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985519445] [2021-06-10 14:37:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:37:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:37:25,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:37:25,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:37:25,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:37:25,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:37:25,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:37:25,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:37:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 14:37:25,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985519445] [2021-06-10 14:37:25,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:37:25,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 14:37:25,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384529698] [2021-06-10 14:37:25,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 14:37:25,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:37:25,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 14:37:25,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 14:37:25,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 14 [2021-06-10 14:37:25,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 9 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:37:25,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 14 [2021-06-10 14:37:25,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:37:25,748 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-06-10 14:37:25,749 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 14:37:25,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 7 events. 0/7 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-10 14:37:25,749 INFO L132 encePairwiseOnDemand]: 12/14 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2021-06-10 14:37:25,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 7 transitions, 24 flow [2021-06-10 14:37:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 14:37:25,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 14:37:25,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2021-06-10 14:37:25,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2021-06-10 14:37:25,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 38 transitions. [2021-06-10 14:37:25,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 38 transitions. [2021-06-10 14:37:25,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:37:25,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 38 transitions. [2021-06-10 14:37:25,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,754 INFO L185 Difference]: Start difference. First operand has 18 places, 9 transitions, 29 flow. Second operand 3 states and 38 transitions. [2021-06-10 14:37:25,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 7 transitions, 24 flow [2021-06-10 14:37:25,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 19 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 14:37:25,758 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-06-10 14:37:25,758 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-06-10 14:37:25,759 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, -2 predicate places. [2021-06-10 14:37:25,759 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 0 transitions, 0 flow [2021-06-10 14:37:25,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:37:25,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 14:37:25,763 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 02:37:25 BasicIcfg [2021-06-10 14:37:25,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 14:37:25,764 INFO L168 Benchmark]: Toolchain (without parser) took 663.79 ms. Allocated memory is still 375.4 MB. Free memory was 354.5 MB in the beginning and 328.4 MB in the end (delta: 26.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:25,765 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 375.4 MB. Free memory is still 355.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:37:25,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.79 ms. Allocated memory is still 375.4 MB. Free memory was 354.4 MB in the beginning and 353.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:37:25,766 INFO L168 Benchmark]: Boogie Preprocessor took 8.87 ms. Allocated memory is still 375.4 MB. Free memory was 353.0 MB in the beginning and 352.1 MB in the end (delta: 840.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:25,767 INFO L168 Benchmark]: RCFGBuilder took 162.23 ms. Allocated memory is still 375.4 MB. Free memory was 352.0 MB in the beginning and 343.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:25,768 INFO L168 Benchmark]: TraceAbstraction took 471.98 ms. Allocated memory is still 375.4 MB. Free memory was 343.2 MB in the beginning and 328.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:25,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 375.4 MB. Free memory is still 355.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 16.79 ms. Allocated memory is still 375.4 MB. Free memory was 354.4 MB in the beginning and 353.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 8.87 ms. Allocated memory is still 375.4 MB. Free memory was 353.0 MB in the beginning and 352.1 MB in the end (delta: 840.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 162.23 ms. Allocated memory is still 375.4 MB. Free memory was 352.0 MB in the beginning and 343.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 471.98 ms. Allocated memory is still 375.4 MB. Free memory was 343.2 MB in the beginning and 328.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 408.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 130.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 16 SDslu, 5 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 112.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.7ms SsaConstructionTime, 22.3ms SatisfiabilityAnalysisTime, 140.1ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...