/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-RepeatedSemanticLbeWithDisjunctivePredicates.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 [2021-06-11 18:54:50,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 18:54:50,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 18:54:50,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 18:54:50,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 18:54:50,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 18:54:50,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 18:54:50,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 18:54:50,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 18:54:50,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 18:54:50,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 18:54:50,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 18:54:50,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 18:54:50,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 18:54:50,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 18:54:50,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 18:54:50,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 18:54:50,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 18:54:50,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 18:54:50,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 18:54:50,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 18:54:50,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 18:54:50,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 18:54:50,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 18:54:50,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 18:54:50,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 18:54:50,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 18:54:50,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 18:54:50,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 18:54:50,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 18:54:50,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 18:54:50,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 18:54:50,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 18:54:50,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 18:54:50,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 18:54:50,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 18:54:50,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 18:54:50,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 18:54:50,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 18:54:50,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 18:54:50,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 18:54:50,885 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 18:54:50,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 18:54:50,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 18:54:50,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 18:54:50,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 18:54:50,914 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 18:54:50,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 18:54:50,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 18:54:50,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 18:54:50,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 18:54:50,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 18:54:50,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 18:54:50,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 18:54:50,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 18:54:50,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 18:54:50,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 18:54:50,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 18:54:50,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 18:54:50,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 18:54:50,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 18:54:50,917 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 18:54:50,917 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 18:54:50,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 18:54:50,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 18:54:51,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 18:54:51,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 18:54:51,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 18:54:51,243 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 18:54:51,246 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 18:54:51,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl [2021-06-11 18:54:51,247 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl' [2021-06-11 18:54:51,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 18:54:51,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 18:54:51,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 18:54:51,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 18:54:51,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 18:54:51,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 18:54:51,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 18:54:51,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 18:54:51,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 18:54:51,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/1) ... [2021-06-11 18:54:51,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 18:54:51,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 18:54:51,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 18:54:51,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 18:54:51,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (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 [2021-06-11 18:54:51,373 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 18:54:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 18:54:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 18:54:51,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess1 given in one single declaration [2021-06-11 18:54:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess1 [2021-06-11 18:54:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess1 [2021-06-11 18:54:51,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess2 given in one single declaration [2021-06-11 18:54:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess2 [2021-06-11 18:54:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess2 [2021-06-11 18:54:51,375 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 18:54:51,500 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 18:54:51,501 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 18:54:51,502 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:54:51 BoogieIcfgContainer [2021-06-11 18:54:51,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 18:54:51,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 18:54:51,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 18:54:51,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 18:54:51,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 06:54:51" (1/2) ... [2021-06-11 18:54:51,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c05a53f and model type NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:54:51, skipping insertion in model container [2021-06-11 18:54:51,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:54:51" (2/2) ... [2021-06-11 18:54:51,509 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads.bpl [2021-06-11 18:54:51,513 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 18:54:51,516 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 18:54:51,517 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 18:54:51,540 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,540 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,540 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,541 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,541 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,541 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,541 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,541 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,542 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,542 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,542 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,542 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,543 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,543 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,543 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,543 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,544 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,544 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,544 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,544 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,544 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,545 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,545 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,545 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,547 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,550 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:54:51,556 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-11 18:54:51,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 18:54:51,589 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 18:54:51,589 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 18:54:51,589 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 18:54:51,589 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 18:54:51,589 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 18:54:51,590 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 18:54:51,590 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 18:54:51,590 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 18:54:51,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 74 flow [2021-06-11 18:54:51,632 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2021-06-11 18:54:51,633 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 18:54:51,635 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. [2021-06-11 18:54:51,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 26 transitions, 74 flow [2021-06-11 18:54:51,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 22 transitions, 62 flow [2021-06-11 18:54:51,647 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:54:51,665 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 22 transitions, 62 flow [2021-06-11 18:54:51,671 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 22 transitions, 62 flow [2021-06-11 18:54:51,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 22 transitions, 62 flow [2021-06-11 18:54:51,694 INFO L129 PetriNetUnfolder]: 1/22 cut-off events. [2021-06-11 18:54:51,694 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 18:54:51,694 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. [2021-06-11 18:54:51,696 INFO L151 LiptonReduction]: Number of co-enabled transitions 140 [2021-06-11 18:54:51,932 INFO L163 LiptonReduction]: Checked pairs total: 354 [2021-06-11 18:54:51,932 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-11 18:54:51,934 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 288 [2021-06-11 18:54:51,945 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-06-11 18:54:51,946 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 18:54:51,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:54:51,947 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 18:54:51,947 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:54:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:54:51,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1717627251, now seen corresponding path program 1 times [2021-06-11 18:54:51,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:54:51,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353772488] [2021-06-11 18:54:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:54:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 18:54:52,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 18:54:52,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353772488] [2021-06-11 18:54:52,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 18:54:52,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-11 18:54:52,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407756520] [2021-06-11 18:54:52,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 18:54:52,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 18:54:52,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 18:54:52,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-06-11 18:54:52,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2021-06-11 18:54:52,361 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) [2021-06-11 18:54:52,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 18:54:52,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2021-06-11 18:54:52,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 18:54:52,830 INFO L129 PetriNetUnfolder]: 79/236 cut-off events. [2021-06-11 18:54:52,830 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-06-11 18:54:52,833 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. [2021-06-11 18:54:52,836 INFO L132 encePairwiseOnDemand]: 14/28 looper letters, 41 selfloop transitions, 27 changer transitions 14/86 dead transitions. [2021-06-11 18:54:52,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 86 transitions, 357 flow [2021-06-11 18:54:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-11 18:54:52,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-11 18:54:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 248 transitions. [2021-06-11 18:54:52,852 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2021-06-11 18:54:52,853 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 248 transitions. [2021-06-11 18:54:52,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 248 transitions. [2021-06-11 18:54:52,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 18:54:52,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 248 transitions. [2021-06-11 18:54:52,862 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) [2021-06-11 18:54:52,870 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) [2021-06-11 18:54:52,871 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) [2021-06-11 18:54:52,873 INFO L185 Difference]: Start difference. First operand has 25 places, 20 transitions, 58 flow. Second operand 18 states and 248 transitions. [2021-06-11 18:54:52,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 86 transitions, 357 flow [2021-06-11 18:54:52,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 86 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 18:54:52,885 INFO L241 Difference]: Finished difference. Result has 50 places, 48 transitions, 240 flow [2021-06-11 18:54:52,888 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} [2021-06-11 18:54:52,889 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 25 predicate places. [2021-06-11 18:54:52,892 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:54:52,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 48 transitions, 240 flow [2021-06-11 18:54:52,894 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 48 transitions, 240 flow [2021-06-11 18:54:52,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 48 transitions, 240 flow [2021-06-11 18:54:52,919 INFO L129 PetriNetUnfolder]: 28/123 cut-off events. [2021-06-11 18:54:52,920 INFO L130 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2021-06-11 18:54:52,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 123 events. 28/123 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 554 event pairs, 5 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 324. Up to 28 conditions per place. [2021-06-11 18:54:52,924 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 18:54:52,940 INFO L163 LiptonReduction]: Checked pairs total: 15 [2021-06-11 18:54:52,940 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 18:54:52,940 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-06-11 18:54:52,941 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 48 transitions, 240 flow [2021-06-11 18:54:52,942 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) [2021-06-11 18:54:52,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:54:52,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 18:54:52,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 18:54:52,942 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:54:52,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:54:52,943 INFO L82 PathProgramCache]: Analyzing trace with hash 515928769, now seen corresponding path program 2 times [2021-06-11 18:54:52,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:54:52,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084767129] [2021-06-11 18:54:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:54:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 18:54:52,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:52,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:52,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 18:54:53,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084767129] [2021-06-11 18:54:53,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 18:54:53,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 18:54:53,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682871078] [2021-06-11 18:54:53,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 18:54:53,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 18:54:53,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 18:54:53,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-11 18:54:53,028 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2021-06-11 18:54:53,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 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) [2021-06-11 18:54:53,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 18:54:53,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2021-06-11 18:54:53,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 18:54:53,414 INFO L129 PetriNetUnfolder]: 142/452 cut-off events. [2021-06-11 18:54:53,415 INFO L130 PetriNetUnfolder]: For 1463/1463 co-relation queries the response was YES. [2021-06-11 18:54:53,416 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. [2021-06-11 18:54:53,419 INFO L132 encePairwiseOnDemand]: 14/28 looper letters, 75 selfloop transitions, 47 changer transitions 3/129 dead transitions. [2021-06-11 18:54:53,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 129 transitions, 1049 flow [2021-06-11 18:54:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-11 18:54:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-11 18:54:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 217 transitions. [2021-06-11 18:54:53,422 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-06-11 18:54:53,422 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 217 transitions. [2021-06-11 18:54:53,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 217 transitions. [2021-06-11 18:54:53,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 18:54:53,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 217 transitions. [2021-06-11 18:54:53,423 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) [2021-06-11 18:54:53,425 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) [2021-06-11 18:54:53,425 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) [2021-06-11 18:54:53,425 INFO L185 Difference]: Start difference. First operand has 44 places, 48 transitions, 240 flow. Second operand 14 states and 217 transitions. [2021-06-11 18:54:53,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 129 transitions, 1049 flow [2021-06-11 18:54:53,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 129 transitions, 891 flow, removed 79 selfloop flow, removed 6 redundant places. [2021-06-11 18:54:53,435 INFO L241 Difference]: Finished difference. Result has 59 places, 91 transitions, 664 flow [2021-06-11 18:54:53,436 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} [2021-06-11 18:54:53,436 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 34 predicate places. [2021-06-11 18:54:53,436 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:54:53,437 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 91 transitions, 664 flow [2021-06-11 18:54:53,437 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 91 transitions, 664 flow [2021-06-11 18:54:53,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 91 transitions, 664 flow [2021-06-11 18:54:53,466 INFO L129 PetriNetUnfolder]: 75/330 cut-off events. [2021-06-11 18:54:53,466 INFO L130 PetriNetUnfolder]: For 1119/1135 co-relation queries the response was YES. [2021-06-11 18:54:53,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 330 events. 75/330 cut-off events. For 1119/1135 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2243 event pairs, 0 based on Foata normal form. 8/334 useless extension candidates. Maximal degree in co-relation 1037. Up to 81 conditions per place. [2021-06-11 18:54:53,478 INFO L151 LiptonReduction]: Number of co-enabled transitions 238 [2021-06-11 18:54:53,490 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 18:54:53,491 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 18:54:53,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-06-11 18:54:53,492 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 91 transitions, 664 flow [2021-06-11 18:54:53,492 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) [2021-06-11 18:54:53,492 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:54:53,492 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 18:54:53,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 18:54:53,493 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:54:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:54:53,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1260868631, now seen corresponding path program 3 times [2021-06-11 18:54:53,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:54:53,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648896874] [2021-06-11 18:54:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:54:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 18:54:53,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 18:54:53,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648896874] [2021-06-11 18:54:53,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 18:54:53,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 18:54:53,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252098375] [2021-06-11 18:54:53,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 18:54:53,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 18:54:53,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 18:54:53,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-11 18:54:53,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 18:54:53,551 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) [2021-06-11 18:54:53,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 18:54:53,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 18:54:53,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 18:54:53,772 INFO L129 PetriNetUnfolder]: 161/554 cut-off events. [2021-06-11 18:54:53,772 INFO L130 PetriNetUnfolder]: For 2298/2298 co-relation queries the response was YES. [2021-06-11 18:54:53,775 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. [2021-06-11 18:54:53,778 INFO L132 encePairwiseOnDemand]: 17/28 looper letters, 102 selfloop transitions, 53 changer transitions 35/195 dead transitions. [2021-06-11 18:54:53,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 195 transitions, 1818 flow [2021-06-11 18:54:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 18:54:53,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 18:54:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 192 transitions. [2021-06-11 18:54:53,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2021-06-11 18:54:53,781 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 192 transitions. [2021-06-11 18:54:53,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 192 transitions. [2021-06-11 18:54:53,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 18:54:53,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 192 transitions. [2021-06-11 18:54:53,797 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) [2021-06-11 18:54:53,798 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) [2021-06-11 18:54:53,799 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) [2021-06-11 18:54:53,799 INFO L185 Difference]: Start difference. First operand has 59 places, 91 transitions, 664 flow. Second operand 12 states and 192 transitions. [2021-06-11 18:54:53,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 195 transitions, 1818 flow [2021-06-11 18:54:53,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 195 transitions, 1654 flow, removed 80 selfloop flow, removed 1 redundant places. [2021-06-11 18:54:53,820 INFO L241 Difference]: Finished difference. Result has 75 places, 118 transitions, 1006 flow [2021-06-11 18:54:53,820 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} [2021-06-11 18:54:53,821 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 50 predicate places. [2021-06-11 18:54:53,821 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:54:53,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 118 transitions, 1006 flow [2021-06-11 18:54:53,822 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 118 transitions, 1006 flow [2021-06-11 18:54:53,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 118 transitions, 1006 flow [2021-06-11 18:54:53,871 INFO L129 PetriNetUnfolder]: 78/377 cut-off events. [2021-06-11 18:54:53,871 INFO L130 PetriNetUnfolder]: For 1805/1819 co-relation queries the response was YES. [2021-06-11 18:54:53,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 377 events. 78/377 cut-off events. For 1805/1819 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2809 event pairs, 4 based on Foata normal form. 5/375 useless extension candidates. Maximal degree in co-relation 1364. Up to 99 conditions per place. [2021-06-11 18:54:53,876 INFO L151 LiptonReduction]: Number of co-enabled transitions 234 [2021-06-11 18:54:53,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:54:53,961 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 18:54:53,962 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-11 18:54:53,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-06-11 18:54:53,963 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 118 transitions, 1006 flow [2021-06-11 18:54:53,963 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) [2021-06-11 18:54:53,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:54:53,963 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 18:54:53,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 18:54:53,963 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:54:53,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:54:53,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1198838527, now seen corresponding path program 4 times [2021-06-11 18:54:53,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:54:53,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949544292] [2021-06-11 18:54:53,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:54:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 18:54:53,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:53,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:53,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:54,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:54,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:54,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:54,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:54,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:54,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 18:54:54,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949544292] [2021-06-11 18:54:54,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 18:54:54,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 18:54:54,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938623679] [2021-06-11 18:54:54,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 18:54:54,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 18:54:54,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 18:54:54,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-11 18:54:54,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2021-06-11 18:54:54,021 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) [2021-06-11 18:54:54,021 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 18:54:54,021 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2021-06-11 18:54:54,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 18:54:54,311 INFO L129 PetriNetUnfolder]: 190/713 cut-off events. [2021-06-11 18:54:54,312 INFO L130 PetriNetUnfolder]: For 3898/3898 co-relation queries the response was YES. [2021-06-11 18:54:54,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 713 events. 190/713 cut-off events. For 3898/3898 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5632 event pairs, 15 based on Foata normal form. 3/716 useless extension candidates. Maximal degree in co-relation 3014. Up to 217 conditions per place. [2021-06-11 18:54:54,319 INFO L132 encePairwiseOnDemand]: 14/30 looper letters, 117 selfloop transitions, 76 changer transitions 22/219 dead transitions. [2021-06-11 18:54:54,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 219 transitions, 2200 flow [2021-06-11 18:54:54,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 18:54:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 18:54:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 196 transitions. [2021-06-11 18:54:54,321 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2021-06-11 18:54:54,321 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 196 transitions. [2021-06-11 18:54:54,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 196 transitions. [2021-06-11 18:54:54,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 18:54:54,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 196 transitions. [2021-06-11 18:54:54,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2021-06-11 18:54:54,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 30.0) internal successors, (390), 13 states have internal predecessors, (390), 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) [2021-06-11 18:54:54,323 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 30.0) internal successors, (390), 13 states have internal predecessors, (390), 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) [2021-06-11 18:54:54,323 INFO L185 Difference]: Start difference. First operand has 75 places, 118 transitions, 1006 flow. Second operand 12 states and 196 transitions. [2021-06-11 18:54:54,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 219 transitions, 2200 flow [2021-06-11 18:54:54,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 219 transitions, 2137 flow, removed 28 selfloop flow, removed 2 redundant places. [2021-06-11 18:54:54,349 INFO L241 Difference]: Finished difference. Result has 91 places, 144 transitions, 1486 flow [2021-06-11 18:54:54,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, 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=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1486, PETRI_PLACES=91, PETRI_TRANSITIONS=144} [2021-06-11 18:54:54,350 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 66 predicate places. [2021-06-11 18:54:54,350 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:54:54,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 144 transitions, 1486 flow [2021-06-11 18:54:54,351 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 144 transitions, 1486 flow [2021-06-11 18:54:54,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 144 transitions, 1486 flow [2021-06-11 18:54:54,399 INFO L129 PetriNetUnfolder]: 90/507 cut-off events. [2021-06-11 18:54:54,399 INFO L130 PetriNetUnfolder]: For 2711/2734 co-relation queries the response was YES. [2021-06-11 18:54:54,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2139 conditions, 507 events. 90/507 cut-off events. For 2711/2734 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4240 event pairs, 2 based on Foata normal form. 7/511 useless extension candidates. Maximal degree in co-relation 1911. Up to 110 conditions per place. [2021-06-11 18:54:54,406 INFO L151 LiptonReduction]: Number of co-enabled transitions 296 [2021-06-11 18:54:54,432 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 18:54:54,432 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 18:54:54,432 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-06-11 18:54:54,433 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 144 transitions, 1486 flow [2021-06-11 18:54:54,434 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) [2021-06-11 18:54:54,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:54:54,434 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 18:54:54,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 18:54:54,434 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:54:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:54:54,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1462665849, now seen corresponding path program 1 times [2021-06-11 18:54:54,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:54:54,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108061604] [2021-06-11 18:54:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:54:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 18:54:54,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:54,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:54:54,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:54,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:54:54,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:54:54,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:54:54,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 18:54:54,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108061604] [2021-06-11 18:54:54,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 18:54:54,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 18:54:54,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780837584] [2021-06-11 18:54:54,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 18:54:54,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 18:54:54,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 18:54:54,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 18:54:54,453 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 30 [2021-06-11 18:54:54,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 144 transitions, 1486 flow. Second operand has 3 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) [2021-06-11 18:54:54,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 18:54:54,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 30 [2021-06-11 18:54:54,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 18:54:54,506 INFO L129 PetriNetUnfolder]: 70/443 cut-off events. [2021-06-11 18:54:54,506 INFO L130 PetriNetUnfolder]: For 2755/2779 co-relation queries the response was YES. [2021-06-11 18:54:54,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 443 events. 70/443 cut-off events. For 2755/2779 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3581 event pairs, 0 based on Foata normal form. 53/493 useless extension candidates. Maximal degree in co-relation 1928. Up to 107 conditions per place. [2021-06-11 18:54:54,510 INFO L132 encePairwiseOnDemand]: 28/30 looper letters, 1 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2021-06-11 18:54:54,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 142 transitions, 1484 flow [2021-06-11 18:54:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 18:54:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 18:54:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2021-06-11 18:54:54,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2021-06-11 18:54:54,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 84 transitions. [2021-06-11 18:54:54,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 84 transitions. [2021-06-11 18:54:54,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 18:54:54,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 84 transitions. [2021-06-11 18:54:54,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-06-11 18:54:54,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2021-06-11 18:54:54,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2021-06-11 18:54:54,513 INFO L185 Difference]: Start difference. First operand has 91 places, 144 transitions, 1486 flow. Second operand 3 states and 84 transitions. [2021-06-11 18:54:54,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 142 transitions, 1484 flow [2021-06-11 18:54:54,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 142 transitions, 1430 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-06-11 18:54:54,537 INFO L241 Difference]: Finished difference. Result has 89 places, 142 transitions, 1428 flow [2021-06-11 18:54:54,537 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1426, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1428, PETRI_PLACES=89, PETRI_TRANSITIONS=142} [2021-06-11 18:54:54,537 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 64 predicate places. [2021-06-11 18:54:54,537 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:54:54,537 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 142 transitions, 1428 flow [2021-06-11 18:54:54,538 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 142 transitions, 1428 flow [2021-06-11 18:54:54,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 142 transitions, 1428 flow [2021-06-11 18:54:54,580 INFO L129 PetriNetUnfolder]: 70/445 cut-off events. [2021-06-11 18:54:54,581 INFO L130 PetriNetUnfolder]: For 2567/2595 co-relation queries the response was YES. [2021-06-11 18:54:54,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2033 conditions, 445 events. 70/445 cut-off events. For 2567/2595 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3633 event pairs, 4 based on Foata normal form. 10/452 useless extension candidates. Maximal degree in co-relation 1995. Up to 111 conditions per place. [2021-06-11 18:54:54,586 INFO L151 LiptonReduction]: Number of co-enabled transitions 240 [2021-06-11 18:54:54,594 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 18:54:54,595 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 18:54:54,595 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-06-11 18:54:54,596 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 142 transitions, 1428 flow [2021-06-11 18:54:54,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 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) [2021-06-11 18:54:54,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:54:54,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 18:54:54,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 18:54:54,596 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:54:54,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:54:54,597 INFO L82 PathProgramCache]: Analyzing trace with hash 833098591, now seen corresponding path program 1 times [2021-06-11 18:54:54,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:54:54,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862616683] [2021-06-11 18:54:54,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:54:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 18:54:54,603 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 18:54:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 18:54:54,608 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 18:54:54,619 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-11 18:54:54,619 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-11 18:54:54,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 18:54:54,632 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:54:54 BasicIcfg [2021-06-11 18:54:54,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 18:54:54,633 INFO L168 Benchmark]: Toolchain (without parser) took 3348.66 ms. Allocated memory is still 350.2 MB. Free memory was 329.9 MB in the beginning and 129.9 MB in the end (delta: 200.0 MB). Peak memory consumption was 199.9 MB. Max. memory is 16.0 GB. [2021-06-11 18:54:54,633 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 350.2 MB. Free memory was 331.0 MB in the beginning and 330.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 18:54:54,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.00 ms. Allocated memory is still 350.2 MB. Free memory was 329.9 MB in the beginning and 328.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 18:54:54,634 INFO L168 Benchmark]: Boogie Preprocessor took 11.01 ms. Allocated memory is still 350.2 MB. Free memory was 328.4 MB in the beginning and 327.5 MB in the end (delta: 892.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 18:54:54,634 INFO L168 Benchmark]: RCFGBuilder took 181.99 ms. Allocated memory is still 350.2 MB. Free memory was 327.5 MB in the beginning and 317.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-11 18:54:54,635 INFO L168 Benchmark]: TraceAbstraction took 3128.53 ms. Allocated memory is still 350.2 MB. Free memory was 317.1 MB in the beginning and 129.9 MB in the end (delta: 187.2 MB). Peak memory consumption was 185.2 MB. Max. memory is 16.0 GB. [2021-06-11 18:54:54,636 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 0.16 ms. Allocated memory is still 350.2 MB. Free memory was 331.0 MB in the beginning and 330.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.00 ms. Allocated memory is still 350.2 MB. Free memory was 329.9 MB in the beginning and 328.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.01 ms. Allocated memory is still 350.2 MB. Free memory was 328.4 MB in the beginning and 327.5 MB in the end (delta: 892.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 181.99 ms. Allocated memory is still 350.2 MB. Free memory was 327.5 MB in the beginning and 317.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3128.53 ms. Allocated memory is still 350.2 MB. Free memory was 317.1 MB in the beginning and 129.9 MB in the end (delta: 187.2 MB). Peak memory consumption was 185.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 260.8ms, 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: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 42, negative conditional: 42, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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: 160, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 160, negative conditional: 0, negative unconditional: 160, 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): 44, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.8ms, 50 PlacesBefore, 44 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 23, Negative conditional cache size: 1, Negative unconditional cache size: 22, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.7ms, 59 PlacesBefore, 59 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 45, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 23, Negative conditional cache size: 1, Negative unconditional cache size: 22, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 140.1ms, 75 PlacesBefore, 75 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 23, Positive conditional cache size: 1, Positive unconditional cache size: 22, Negative cache size: 23, Negative conditional cache size: 1, Negative unconditional cache size: 22, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.8ms, 91 PlacesBefore, 91 PlacesAfterwards, 144 TransitionsBefore, 144 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 46, Positive cache size: 23, Positive conditional cache size: 1, Positive unconditional cache size: 22, Negative cache size: 23, Negative conditional cache size: 1, Negative unconditional cache size: 22, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.2ms, 89 PlacesBefore, 89 PlacesAfterwards, 142 TransitionsBefore, 142 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 46, Positive cache size: 23, Positive conditional cache size: 1, Positive unconditional cache size: 22, Negative cache size: 23, Negative conditional cache size: 1, Negative unconditional cache size: 22, Eliminated conditions: 0 - 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] [L38] 1 localx := x; VAL [localx=0, x=0] [L54] 2 localx := x; [L55] 2 x := localx + 1; VAL [localx=0, localx=0, x=1] [L57] 2 localx := x; VAL [localx=1, localx=0, x=1] [L58] 2 x := localx + 1; VAL [localx=1, localx=0, x=2] [L39] 1 x := localx + 1; VAL [localx=1, localx=0, 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=1, localx=2, x=2] [L45] 1 x := localx + 1; [L61] 2 x := localx + 1; [L26] JOIN 1 join 1; VAL [localx=1, localx=2, x=2] [L27] JOIN 2 join 2; VAL [localx=1, localx=2, x=2] [L28] 0 assert x >= 3; VAL [localx=1, localx=2, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3036.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1633.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 349.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 112 SDtfs, 145 SDslu, 111 SDs, 0 SdLazy, 759 SolverSat, 191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 482.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 565.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1486occurred in iteration=4, InterpolantAutomatonStates: 59, 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: 13.0ms SsaConstructionTime, 51.4ms SatisfiabilityAnalysisTime, 427.1ms InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 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...