/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 23:57:41,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 23:57:41,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 23:57:41,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 23:57:41,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 23:57:41,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 23:57:41,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 23:57:41,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 23:57:41,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 23:57:41,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 23:57:41,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 23:57:41,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 23:57:41,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 23:57:41,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 23:57:41,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 23:57:41,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 23:57:41,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 23:57:41,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 23:57:41,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 23:57:41,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 23:57:41,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 23:57:41,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 23:57:41,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 23:57:41,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 23:57:41,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 23:57:41,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 23:57:41,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 23:57:41,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 23:57:41,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-06-10 23:57:41,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 23:57:41,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 23:57:41,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 23:57:41,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 23:57:41,671 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 23:57:41,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 23:57:41,671 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 23:57:41,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 23:57:41,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 23:57:41,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 23:57:41,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 23:57:41,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 23:57:41,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 23:57:41,673 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 23:57:41,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 23:57:41,673 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 23:57:41,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 23:57:41,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 23:57:41,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 23:57:41,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 23:57:41,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 23:57:41,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 23:57:41,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 23:57:41,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 23:57:41,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 23:57:41,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 23:57:41,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 23:57:41,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 23:57:41,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 23:57:41,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 23:57:41,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 23:57:41,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 23:57:41,994 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-10 23:57:42,001 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-10 23:57:42,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl [2021-06-10 23:57:42,002 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl' [2021-06-10 23:57:42,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 23:57:42,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-10 23:57:42,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 23:57:42,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 23:57:42,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 23:57:42,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 23:57:42,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 23:57:42,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 23:57:42,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 23:57:42,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/1) ... [2021-06-10 23:57:42,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 23:57:42,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 23:57:42,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 23:57:42,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 23:57:42,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (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 23:57:42,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-10 23:57:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 23:57:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 23:57:42,145 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess1 given in one single declaration [2021-06-10 23:57:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess1 [2021-06-10 23:57:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess1 [2021-06-10 23:57:42,145 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess2 given in one single declaration [2021-06-10 23:57:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess2 [2021-06-10 23:57:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess2 [2021-06-10 23:57:42,146 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 23:57:42,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 23:57:42,289 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-10 23:57:42,290 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:57:42 BoogieIcfgContainer [2021-06-10 23:57:42,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 23:57:42,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 23:57:42,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 23:57:42,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 23:57:42,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:57:42" (1/2) ... [2021-06-10 23:57:42,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb5ce0e and model type NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:57:42, skipping insertion in model container [2021-06-10 23:57:42,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:57:42" (2/2) ... [2021-06-10 23:57:42,297 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads.bpl [2021-06-10 23:57:42,301 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 23:57:42,305 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 23:57:42,305 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 23:57:42,324 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,324 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,324 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,325 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,325 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,325 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,325 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,326 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,326 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,326 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,326 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,326 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,327 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,327 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,327 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,327 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,328 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,328 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,328 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,328 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,328 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,329 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,329 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,329 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,331 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,335 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:57:42,342 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-10 23:57:42,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-10 23:57:42,375 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:57:42,375 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:57:42,375 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:57:42,375 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:57:42,375 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:57:42,375 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:57:42,375 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:57:42,376 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:57:42,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 74 flow [2021-06-10 23:57:42,422 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2021-06-10 23:57:42,423 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 23:57:42,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 24 events. 1/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2021-06-10 23:57:42,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 26 transitions, 74 flow [2021-06-10 23:57:42,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 22 transitions, 62 flow [2021-06-10 23:57:42,430 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:57:42,440 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 22 transitions, 62 flow [2021-06-10 23:57:42,443 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 22 transitions, 62 flow [2021-06-10 23:57:42,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 22 transitions, 62 flow [2021-06-10 23:57:42,454 INFO L129 PetriNetUnfolder]: 1/22 cut-off events. [2021-06-10 23:57:42,454 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 23:57:42,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 22 events. 1/22 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2021-06-10 23:57:42,456 INFO L151 LiptonReduction]: Number of co-enabled transitions 140 [2021-06-10 23:57:42,640 INFO L163 LiptonReduction]: Checked pairs total: 354 [2021-06-10 23:57:42,640 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-10 23:57:42,642 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 213 [2021-06-10 23:57:42,658 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-06-10 23:57:42,658 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 23:57:42,658 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:57:42,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:57:42,666 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:57:42,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:57:42,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1717627251, now seen corresponding path program 1 times [2021-06-10 23:57:42,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:57:42,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873349845] [2021-06-10 23:57:42,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:57:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:57:42,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:42,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:42,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,078 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 23:57:43,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873349845] [2021-06-10 23:57:43,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:57:43,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-10 23:57:43,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083556821] [2021-06-10 23:57:43,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 23:57:43,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:57:43,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 23:57:43,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-06-10 23:57:43,107 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2021-06-10 23:57:43,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 58 flow. Second operand has 15 states, 15 states have (on average 10.066666666666666) internal successors, (151), 15 states have internal predecessors, (151), 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 23:57:43,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:57:43,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2021-06-10 23:57:43,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:57:43,550 INFO L129 PetriNetUnfolder]: 79/236 cut-off events. [2021-06-10 23:57:43,551 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-06-10 23:57:43,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 236 events. 79/236 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1080 event pairs, 25 based on Foata normal form. 4/240 useless extension candidates. Maximal degree in co-relation 428. Up to 81 conditions per place. [2021-06-10 23:57:43,557 INFO L132 encePairwiseOnDemand]: 14/28 looper letters, 41 selfloop transitions, 27 changer transitions 14/86 dead transitions. [2021-06-10 23:57:43,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 86 transitions, 357 flow [2021-06-10 23:57:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-10 23:57:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-10 23:57:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 248 transitions. [2021-06-10 23:57:43,575 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2021-06-10 23:57:43,575 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 248 transitions. [2021-06-10 23:57:43,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 248 transitions. [2021-06-10 23:57:43,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:57:43,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 248 transitions. [2021-06-10 23:57:43,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 13.777777777777779) internal successors, (248), 18 states have internal predecessors, (248), 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 23:57:43,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 28.0) internal successors, (532), 19 states have internal predecessors, (532), 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 23:57:43,593 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 28.0) internal successors, (532), 19 states have internal predecessors, (532), 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 23:57:43,595 INFO L185 Difference]: Start difference. First operand has 25 places, 20 transitions, 58 flow. Second operand 18 states and 248 transitions. [2021-06-10 23:57:43,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 86 transitions, 357 flow [2021-06-10 23:57:43,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 86 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 23:57:43,609 INFO L241 Difference]: Finished difference. Result has 50 places, 48 transitions, 240 flow [2021-06-10 23:57:43,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=240, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2021-06-10 23:57:43,611 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 25 predicate places. [2021-06-10 23:57:43,612 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 240 flow [2021-06-10 23:57:43,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 10.066666666666666) internal successors, (151), 15 states have internal predecessors, (151), 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 23:57:43,612 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:57:43,612 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:57:43,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 23:57:43,613 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:57:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:57:43,613 INFO L82 PathProgramCache]: Analyzing trace with hash 515928769, now seen corresponding path program 2 times [2021-06-10 23:57:43,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:57:43,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687611836] [2021-06-10 23:57:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:57:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:57:43,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:43,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:43,694 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 23:57:43,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687611836] [2021-06-10 23:57:43,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:57:43,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-10 23:57:43,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89918270] [2021-06-10 23:57:43,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-10 23:57:43,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:57:43,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-10 23:57:43,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-10 23:57:43,697 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2021-06-10 23:57:43,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 240 flow. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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 23:57:43,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:57:43,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2021-06-10 23:57:43,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:57:44,097 INFO L129 PetriNetUnfolder]: 142/452 cut-off events. [2021-06-10 23:57:44,097 INFO L130 PetriNetUnfolder]: For 1463/1463 co-relation queries the response was YES. [2021-06-10 23:57:44,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 452 events. 142/452 cut-off events. For 1463/1463 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2823 event pairs, 12 based on Foata normal form. 2/454 useless extension candidates. Maximal degree in co-relation 1648. Up to 138 conditions per place. [2021-06-10 23:57:44,103 INFO L132 encePairwiseOnDemand]: 14/28 looper letters, 75 selfloop transitions, 47 changer transitions 3/129 dead transitions. [2021-06-10 23:57:44,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 129 transitions, 1049 flow [2021-06-10 23:57:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-10 23:57:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-10 23:57:44,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 217 transitions. [2021-06-10 23:57:44,106 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-06-10 23:57:44,106 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 217 transitions. [2021-06-10 23:57:44,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 217 transitions. [2021-06-10 23:57:44,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:57:44,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 217 transitions. [2021-06-10 23:57:44,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 15.5) internal successors, (217), 14 states have internal predecessors, (217), 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 23:57:44,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 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 23:57:44,109 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 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 23:57:44,109 INFO L185 Difference]: Start difference. First operand has 50 places, 48 transitions, 240 flow. Second operand 14 states and 217 transitions. [2021-06-10 23:57:44,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 129 transitions, 1049 flow [2021-06-10 23:57:44,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 129 transitions, 891 flow, removed 79 selfloop flow, removed 6 redundant places. [2021-06-10 23:57:44,123 INFO L241 Difference]: Finished difference. Result has 59 places, 91 transitions, 664 flow [2021-06-10 23:57:44,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=664, PETRI_PLACES=59, PETRI_TRANSITIONS=91} [2021-06-10 23:57:44,124 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 34 predicate places. [2021-06-10 23:57:44,124 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 91 transitions, 664 flow [2021-06-10 23:57:44,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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 23:57:44,125 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:57:44,125 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:57:44,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 23:57:44,126 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:57:44,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:57:44,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1260868631, now seen corresponding path program 3 times [2021-06-10 23:57:44,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:57:44,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325222775] [2021-06-10 23:57:44,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:57:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:57:44,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,219 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 23:57:44,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325222775] [2021-06-10 23:57:44,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:57:44,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 23:57:44,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570458761] [2021-06-10 23:57:44,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 23:57:44,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:57:44,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 23:57:44,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-10 23:57:44,223 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-10 23:57:44,223 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 91 transitions, 664 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 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 23:57:44,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:57:44,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-10 23:57:44,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:57:44,425 INFO L129 PetriNetUnfolder]: 161/554 cut-off events. [2021-06-10 23:57:44,425 INFO L130 PetriNetUnfolder]: For 2298/2298 co-relation queries the response was YES. [2021-06-10 23:57:44,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2428 conditions, 554 events. 161/554 cut-off events. For 2298/2298 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3927 event pairs, 13 based on Foata normal form. 4/558 useless extension candidates. Maximal degree in co-relation 2260. Up to 236 conditions per place. [2021-06-10 23:57:44,431 INFO L132 encePairwiseOnDemand]: 17/28 looper letters, 102 selfloop transitions, 53 changer transitions 35/195 dead transitions. [2021-06-10 23:57:44,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 195 transitions, 1818 flow [2021-06-10 23:57:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-10 23:57:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-10 23:57:44,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 192 transitions. [2021-06-10 23:57:44,433 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2021-06-10 23:57:44,433 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 192 transitions. [2021-06-10 23:57:44,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 192 transitions. [2021-06-10 23:57:44,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:57:44,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 192 transitions. [2021-06-10 23:57:44,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.0) internal successors, (192), 12 states have internal predecessors, (192), 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 23:57:44,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 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 23:57:44,436 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 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 23:57:44,436 INFO L185 Difference]: Start difference. First operand has 59 places, 91 transitions, 664 flow. Second operand 12 states and 192 transitions. [2021-06-10 23:57:44,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 195 transitions, 1818 flow [2021-06-10 23:57:44,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 195 transitions, 1654 flow, removed 80 selfloop flow, removed 1 redundant places. [2021-06-10 23:57:44,459 INFO L241 Difference]: Finished difference. Result has 75 places, 118 transitions, 1006 flow [2021-06-10 23:57:44,459 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1006, PETRI_PLACES=75, PETRI_TRANSITIONS=118} [2021-06-10 23:57:44,459 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 50 predicate places. [2021-06-10 23:57:44,459 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 118 transitions, 1006 flow [2021-06-10 23:57:44,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 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 23:57:44,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:57:44,463 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:57:44,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 23:57:44,463 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:57:44,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:57:44,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1198838527, now seen corresponding path program 4 times [2021-06-10 23:57:44,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:57:44,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419491126] [2021-06-10 23:57:44,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:57:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:57:44,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,543 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 23:57:44,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419491126] [2021-06-10 23:57:44,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:57:44,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 23:57:44,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956486839] [2021-06-10 23:57:44,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 23:57:44,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:57:44,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 23:57:44,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-10 23:57:44,545 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2021-06-10 23:57:44,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 118 transitions, 1006 flow. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 23:57:44,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:57:44,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2021-06-10 23:57:44,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:57:44,775 INFO L129 PetriNetUnfolder]: 159/596 cut-off events. [2021-06-10 23:57:44,775 INFO L130 PetriNetUnfolder]: For 3053/3053 co-relation queries the response was YES. [2021-06-10 23:57:44,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2789 conditions, 596 events. 159/596 cut-off events. For 3053/3053 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4406 event pairs, 23 based on Foata normal form. 2/598 useless extension candidates. Maximal degree in co-relation 2514. Up to 236 conditions per place. [2021-06-10 23:57:44,780 INFO L132 encePairwiseOnDemand]: 14/28 looper letters, 98 selfloop transitions, 55 changer transitions 22/179 dead transitions. [2021-06-10 23:57:44,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 179 transitions, 1796 flow [2021-06-10 23:57:44,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-10 23:57:44,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-10 23:57:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 173 transitions. [2021-06-10 23:57:44,782 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5616883116883117 [2021-06-10 23:57:44,782 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 173 transitions. [2021-06-10 23:57:44,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 173 transitions. [2021-06-10 23:57:44,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:57:44,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 173 transitions. [2021-06-10 23:57:44,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.727272727272727) internal successors, (173), 11 states have internal predecessors, (173), 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 23:57:44,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 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 23:57:44,784 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 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 23:57:44,784 INFO L185 Difference]: Start difference. First operand has 75 places, 118 transitions, 1006 flow. Second operand 11 states and 173 transitions. [2021-06-10 23:57:44,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 179 transitions, 1796 flow [2021-06-10 23:57:44,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 179 transitions, 1737 flow, removed 26 selfloop flow, removed 2 redundant places. [2021-06-10 23:57:44,810 INFO L241 Difference]: Finished difference. Result has 87 places, 123 transitions, 1183 flow [2021-06-10 23:57:44,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1183, PETRI_PLACES=87, PETRI_TRANSITIONS=123} [2021-06-10 23:57:44,810 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 62 predicate places. [2021-06-10 23:57:44,810 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 123 transitions, 1183 flow [2021-06-10 23:57:44,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 23:57:44,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:57:44,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:57:44,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 23:57:44,811 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:57:44,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:57:44,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1055672017, now seen corresponding path program 5 times [2021-06-10 23:57:44,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:57:44,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066384185] [2021-06-10 23:57:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:57:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:57:44,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:57:44,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:57:44,892 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 23:57:44,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066384185] [2021-06-10 23:57:44,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:57:44,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-10 23:57:44,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823624822] [2021-06-10 23:57:44,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-10 23:57:44,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:57:44,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-10 23:57:44,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-06-10 23:57:44,894 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2021-06-10 23:57:44,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 123 transitions, 1183 flow. Second operand has 13 states, 13 states have (on average 10.23076923076923) internal successors, (133), 13 states have internal predecessors, (133), 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 23:57:44,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:57:44,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2021-06-10 23:57:44,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:57:45,258 INFO L129 PetriNetUnfolder]: 145/549 cut-off events. [2021-06-10 23:57:45,258 INFO L130 PetriNetUnfolder]: For 2473/2473 co-relation queries the response was YES. [2021-06-10 23:57:45,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 549 events. 145/549 cut-off events. For 2473/2473 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3978 event pairs, 13 based on Foata normal form. 2/551 useless extension candidates. Maximal degree in co-relation 2327. Up to 129 conditions per place. [2021-06-10 23:57:45,264 INFO L132 encePairwiseOnDemand]: 14/28 looper letters, 80 selfloop transitions, 67 changer transitions 18/169 dead transitions. [2021-06-10 23:57:45,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 169 transitions, 1975 flow [2021-06-10 23:57:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-10 23:57:45,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-10 23:57:45,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 233 transitions. [2021-06-10 23:57:45,265 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5200892857142857 [2021-06-10 23:57:45,266 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 233 transitions. [2021-06-10 23:57:45,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 233 transitions. [2021-06-10 23:57:45,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:57:45,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 233 transitions. [2021-06-10 23:57:45,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 14.5625) internal successors, (233), 16 states have internal predecessors, (233), 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 23:57:45,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 28.0) internal successors, (476), 17 states have internal predecessors, (476), 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 23:57:45,268 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 28.0) internal successors, (476), 17 states have internal predecessors, (476), 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 23:57:45,268 INFO L185 Difference]: Start difference. First operand has 87 places, 123 transitions, 1183 flow. Second operand 16 states and 233 transitions. [2021-06-10 23:57:45,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 169 transitions, 1975 flow [2021-06-10 23:57:45,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 169 transitions, 1884 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-06-10 23:57:45,289 INFO L241 Difference]: Finished difference. Result has 97 places, 121 transitions, 1241 flow [2021-06-10 23:57:45,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1241, PETRI_PLACES=97, PETRI_TRANSITIONS=121} [2021-06-10 23:57:45,289 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 72 predicate places. [2021-06-10 23:57:45,290 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 121 transitions, 1241 flow [2021-06-10 23:57:45,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 10.23076923076923) internal successors, (133), 13 states have internal predecessors, (133), 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 23:57:45,290 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:57:45,290 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:57:45,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 23:57:45,290 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:57:45,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:57:45,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1882554451, now seen corresponding path program 6 times [2021-06-10 23:57:45,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:57:45,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419233020] [2021-06-10 23:57:45,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:57:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:57:45,297 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:57:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:57:45,301 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:57:45,313 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 23:57:45,313 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 23:57:45,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 23:57:45,332 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 11:57:45 BasicIcfg [2021-06-10 23:57:45,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 23:57:45,333 INFO L168 Benchmark]: Toolchain (without parser) took 3302.27 ms. Allocated memory was 333.4 MB in the beginning and 434.1 MB in the end (delta: 100.7 MB). Free memory was 312.9 MB in the beginning and 417.7 MB in the end (delta: -104.8 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.0 GB. [2021-06-10 23:57:45,334 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 333.4 MB. Free memory is still 313.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 23:57:45,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.23 ms. Allocated memory is still 333.4 MB. Free memory was 312.8 MB in the beginning and 311.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 23:57:45,334 INFO L168 Benchmark]: Boogie Preprocessor took 9.99 ms. Allocated memory is still 333.4 MB. Free memory was 311.4 MB in the beginning and 310.4 MB in the end (delta: 931.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 23:57:45,335 INFO L168 Benchmark]: RCFGBuilder took 211.92 ms. Allocated memory is still 333.4 MB. Free memory was 310.4 MB in the beginning and 300.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-06-10 23:57:45,335 INFO L168 Benchmark]: TraceAbstraction took 3040.56 ms. Allocated memory was 333.4 MB in the beginning and 434.1 MB in the end (delta: 100.7 MB). Free memory was 300.2 MB in the beginning and 417.7 MB in the end (delta: -117.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.0 GB. [2021-06-10 23:57:45,336 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 0.12 ms. Allocated memory is still 333.4 MB. Free memory is still 313.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.23 ms. Allocated memory is still 333.4 MB. Free memory was 312.8 MB in the beginning and 311.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 9.99 ms. Allocated memory is still 333.4 MB. Free memory was 311.4 MB in the beginning and 310.4 MB in the end (delta: 931.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 211.92 ms. Allocated memory is still 333.4 MB. Free memory was 310.4 MB in the beginning and 300.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3040.56 ms. Allocated memory was 333.4 MB in the beginning and 434.1 MB in the end (delta: 100.7 MB). Free memory was 300.2 MB in the beginning and 417.7 MB in the end (delta: -117.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 196.8ms, 27 PlacesBefore, 25 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 70, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 129, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 70, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L22] 0 x := 0; VAL [x=0] [L24] FORK 0 fork 1 IncrementProcess1(); VAL [x=0] [L25] FORK 0 fork 2 IncrementProcess2(); VAL [x=0] [L54] 2 localx := x; VAL [localx=0, x=0] [L38] 1 localx := x; VAL [localx=0, localx=0, x=0] [L55] 2 x := localx + 1; VAL [localx=0, localx=0, x=1] [L57] 2 localx := x; VAL [localx=0, localx=1, x=1] [L58] 2 x := localx + 1; VAL [localx=0, localx=1, x=2] [L39] 1 x := localx + 1; VAL [localx=0, localx=1, x=1] [L41] 1 localx := x; VAL [localx=1, localx=1, x=1] [L60] 2 localx := x; VAL [localx=1, localx=1, x=1] [L42] 1 x := localx + 1; VAL [localx=1, localx=1, x=2] [L44] 1 localx := x; VAL [localx=2, localx=1, x=2] [L45] 1 x := localx + 1; [L61] 2 x := localx + 1; [L26] JOIN 1 join 1; VAL [localx=2, localx=1, x=2] [L27] JOIN 2 join 2; VAL [localx=2, localx=1, x=2] [L28] 0 assert x >= 3; VAL [localx=2, localx=1, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2943.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1840.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 275.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 134 SDtfs, 167 SDslu, 153 SDs, 0 SdLazy, 1025 SolverSat, 246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 557.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 761.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1241occurred in iteration=5, InterpolantAutomatonStates: 71, 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: 14.9ms SsaConstructionTime, 72.4ms SatisfiabilityAnalysisTime, 565.0ms InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...