/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:54:29,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:54:29,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:54:29,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:54:29,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:54:29,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:54:29,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:54:29,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:54:29,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:54:29,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:54:29,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:54:29,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:54:29,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:54:29,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:54:29,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:54:29,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:54:29,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:54:29,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:54:29,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:54:29,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:54:29,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:54:29,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:54:29,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:54:29,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:54:29,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:54:29,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:54:29,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:54:29,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:54:29,627 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:54:29,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:54:29,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:54:29,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:54:29,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:54:29,656 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:54:29,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:54:29,657 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:54:29,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:54:29,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:54:29,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:54:29,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:54:29,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:54:29,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:54:29,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:54:29,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:54:29,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:54:29,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:54:29,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:54:29,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:54:29,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:54:29,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:54:29,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:54:29,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:54:29,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:54:29,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:54:29,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:54:29,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:54:29,662 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:54:29,663 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:54:29,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:54:29,663 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:54:30,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:54:30,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:54:30,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:54:30,046 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 03:54:30,047 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 03:54:30,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl [2021-04-29 03:54:30,048 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/JoinTheForkingThread.bpl' [2021-04-29 03:54:30,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:54:30,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 03:54:30,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:54:30,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:54:30,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:54:30,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:54:30,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:54:30,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:54:30,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:54:30,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/1) ... [2021-04-29 03:54:30,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:54:30,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:54:30,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:54:30,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:54:30,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (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 [2021-04-29 03:54:30,311 INFO L124 BoogieDeclarations]: Specification and implementation of procedure bar given in one single declaration [2021-04-29 03:54:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-04-29 03:54:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-04-29 03:54:30,314 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-04-29 03:54:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:54:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:54:30,315 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 03:54:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:54:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:54:30,316 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:54:30,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:54:30,552 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 03:54:30,553 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:54:30 BoogieIcfgContainer [2021-04-29 03:54:30,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:54:30,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:54:30,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:54:30,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:54:30,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:30" (1/2) ... [2021-04-29 03:54:30,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e60021 and model type JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:54:30, skipping insertion in model container [2021-04-29 03:54:30,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:54:30" (2/2) ... [2021-04-29 03:54:30,563 INFO L111 eAbstractionObserver]: Analyzing ICFG JoinTheForkingThread.bpl [2021-04-29 03:54:30,569 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:54:30,574 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-29 03:54:30,575 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:54:30,598 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,598 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,600 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,600 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,603 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_localVar not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,603 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_nondet not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,603 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,608 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,611 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_localVar not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,611 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_nondet not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,611 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:30,629 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-04-29 03:54:30,652 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-29 03:54:30,679 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:54:30,680 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:54:30,680 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:54:30,680 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:54:30,680 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:54:30,680 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:54:30,681 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:54:30,681 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:54:30,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 78 flow [2021-04-29 03:54:30,720 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-04-29 03:54:30,720 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 03:54:30,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 21 events. 1/21 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 10. Up to 3 conditions per place. [2021-04-29 03:54:30,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 25 transitions, 78 flow [2021-04-29 03:54:30,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 16 transitions, 50 flow [2021-04-29 03:54:30,730 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:30,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 16 transitions, 50 flow [2021-04-29 03:54:30,764 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 16 transitions, 50 flow [2021-04-29 03:54:30,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 16 transitions, 50 flow [2021-04-29 03:54:30,783 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-04-29 03:54:30,784 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 03:54:30,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 1/17 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 8. Up to 3 conditions per place. [2021-04-29 03:54:30,789 INFO L146 LiptonReduction]: Number of co-enabled transitions 10 [2021-04-29 03:54:31,004 INFO L158 LiptonReduction]: Checked pairs total: 3 [2021-04-29 03:54:31,004 INFO L160 LiptonReduction]: Total number of compositions: 5 [2021-04-29 03:54:31,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 278 [2021-04-29 03:54:31,035 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-04-29 03:54:31,035 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 03:54:31,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:31,036 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 03:54:31,037 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:31,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:31,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1762166552, now seen corresponding path program 1 times [2021-04-29 03:54:31,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:31,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185813940] [2021-04-29 03:54:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:54:31,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:31,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:54:31,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:54:31,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:31,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:54:31,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:54:31,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185813940] [2021-04-29 03:54:31,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:54:31,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 03:54:31,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527984489] [2021-04-29 03:54:31,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:54:31,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:54:31,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:54:31,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:54:31,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 33 [2021-04-29 03:54:31,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 16 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-04-29 03:54:31,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:54:31,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 33 [2021-04-29 03:54:31,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:54:31,266 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-04-29 03:54:31,266 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 03:54:31,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 10 events. 0/10 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 9 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 03:54:31,268 INFO L132 encePairwiseOnDemand]: 29/33 looper letters, 1 selfloop transitions, 1 changer transitions 3/10 dead transitions. [2021-04-29 03:54:31,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 10 transitions, 33 flow [2021-04-29 03:54:31,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:54:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:54:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2021-04-29 03:54:31,281 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8383838383838383 [2021-04-29 03:54:31,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 83 transitions. [2021-04-29 03:54:31,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 83 transitions. [2021-04-29 03:54:31,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:54:31,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 83 transitions. [2021-04-29 03:54:31,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-04-29 03:54:31,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2021-04-29 03:54:31,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2021-04-29 03:54:31,296 INFO L185 Difference]: Start difference. First operand has 21 places, 16 transitions, 50 flow. Second operand 3 states and 83 transitions. [2021-04-29 03:54:31,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 10 transitions, 33 flow [2021-04-29 03:54:31,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 10 transitions, 28 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 03:54:31,301 INFO L241 Difference]: Finished difference. Result has 16 places, 7 transitions, 20 flow [2021-04-29 03:54:31,303 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=16, PETRI_TRANSITIONS=7} [2021-04-29 03:54:31,303 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, -5 predicate places. [2021-04-29 03:54:31,304 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:31,304 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 7 transitions, 20 flow [2021-04-29 03:54:31,305 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 7 transitions, 20 flow [2021-04-29 03:54:31,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 7 transitions, 20 flow [2021-04-29 03:54:31,309 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-04-29 03:54:31,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:31,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:54:31,310 INFO L146 LiptonReduction]: Number of co-enabled transitions 2 [2021-04-29 03:54:31,311 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:54:31,311 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:54:31,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-29 03:54:31,312 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 7 transitions, 20 flow [2021-04-29 03:54:31,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-04-29 03:54:31,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:31,313 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:54:31,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:54:31,314 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:31,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1206586240, now seen corresponding path program 1 times [2021-04-29 03:54:31,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:31,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291830049] [2021-04-29 03:54:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:54:31,333 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:54:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:54:31,351 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:54:31,378 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:54:31,378 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:54:31,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:54:31,404 INFO L202 PluginConnector]: Adding new model JoinTheForkingThread.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:54:31 BasicIcfg [2021-04-29 03:54:31,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:54:31,406 INFO L168 Benchmark]: Toolchain (without parser) took 1328.40 ms. Allocated memory is still 320.9 MB. Free memory was 288.3 MB in the beginning and 292.9 MB in the end (delta: -4.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:54:31,406 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 320.9 MB. Free memory is still 289.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:54:31,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.19 ms. Allocated memory is still 320.9 MB. Free memory was 303.2 MB in the beginning and 301.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:54:31,408 INFO L168 Benchmark]: Boogie Preprocessor took 19.29 ms. Allocated memory is still 320.9 MB. Free memory was 301.7 MB in the beginning and 300.8 MB in the end (delta: 868.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:54:31,409 INFO L168 Benchmark]: RCFGBuilder took 354.85 ms. Allocated memory is still 320.9 MB. Free memory was 300.8 MB in the beginning and 299.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 03:54:31,410 INFO L168 Benchmark]: TraceAbstraction took 848.28 ms. Allocated memory is still 320.9 MB. Free memory was 299.0 MB in the beginning and 292.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. [2021-04-29 03:54:31,415 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 0.23 ms. Allocated memory is still 320.9 MB. Free memory is still 289.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 40.19 ms. Allocated memory is still 320.9 MB. Free memory was 303.2 MB in the beginning and 301.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.29 ms. Allocated memory is still 320.9 MB. Free memory was 301.7 MB in the beginning and 300.8 MB in the end (delta: 868.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 354.85 ms. Allocated memory is still 320.9 MB. Free memory was 300.8 MB in the beginning and 299.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 848.28 ms. Allocated memory is still 320.9 MB. Free memory was 299.0 MB in the beginning and 292.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 239.7ms, 21 PlacesBefore, 21 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 10 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 2, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0ms, 16 PlacesBefore, 13 PlacesAfterwards, 7 TransitionsBefore, 7 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 2, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - CounterExampleResult [Line: 45]: assertion can be violated assertion can be violated We found a FailurePath: [L17] 0 x := 0; [L18] 0 g := 0; VAL [g=0, x=0] [L20] FORK 0 fork 1 foo(x); VAL [g=0, n=0, x=0] [L29] FORK 1 fork 2 bar(n); VAL [g=0, n=0, n=0, x=0] [L40] 2 res := 23; VAL [g=0, n=0, n=0, res=23, x=0] [L30] 1 g := g + 1; [L31] 1 res := 23; [L44] JOIN 1 join nondet assign localVar; VAL [g=1, localVar=23, n=0, n=0, nondet=1, res=23, res=23, x=0] [L45] 2 assert false; VAL [g=1, localVar=23, n=0, n=0, nondet=1, res=23, res=23, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 710.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 61.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 342.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 6.2ms SsaConstructionTime, 32.0ms SatisfiabilityAnalysisTime, 70.9ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! Received shutdown request...