/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:39:25,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:39:25,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:39:25,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:39:25,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:39:25,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:39:25,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:39:25,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:39:25,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:39:25,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:39:25,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:39:25,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:39:25,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:39:25,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:39:25,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:39:25,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:39:25,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:39:25,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:39:25,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:39:25,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:39:25,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:39:25,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:39:25,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:39:25,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:39:25,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 20:39:25,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 20:39:25,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 20:39:25,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 20:39:25,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 20:39:25,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 20:39:25,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 20:39:25,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 20:39:25,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 20:39:25,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 20:39:25,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 20:39:25,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 20:39:25,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 20:39:25,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 20:39:25,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:39:25,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:39:25,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:39:25,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:39:25,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:39:25,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:39:25,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:39:25,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:39:25,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:39:25,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:39:25,429 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:39:25,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:39:25,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:39:25,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:39:25,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:39:25,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:39:25,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:39:25,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:39:25,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:39:25,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:39:25,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:39:25,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:39:25,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:39:25,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:39:25,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:39:25,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:39:25,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:39:25,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:39:25,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:39:25,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:39:25,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:39:25,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:39:25,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:39:25,432 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:39:25,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:39:25,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:39:25,433 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 20:39:25,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:39:25,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:39:25,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:39:25,666 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 20:39:25,667 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 20:39:25,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl [2022-03-15 20:39:25,669 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl' [2022-03-15 20:39:25,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:39:25,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 20:39:25,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:39:25,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:39:25,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:39:25,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,732 INFO L137 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 20:39:25,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:39:25,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:39:25,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:39:25,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:39:25,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:39:25,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:39:25,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:39:25,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:39:25,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/1) ... [2022-03-15 20:39:25,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:39:25,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:39:25,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 20:39:25,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 20:39:25,801 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2022-03-15 20:39:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2022-03-15 20:39:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2022-03-15 20:39:25,802 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_15 given in one single declaration [2022-03-15 20:39:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure set_15 [2022-03-15 20:39:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure set_15 [2022-03-15 20:39:25,802 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-15 20:39:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-15 20:39:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-15 20:39:25,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-15 20:39:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-15 20:39:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-15 20:39:25,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-15 20:39:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-15 20:39:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-15 20:39:25,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-15 20:39:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-15 20:39:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-15 20:39:25,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-15 20:39:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-15 20:39:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-15 20:39:25,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2022-03-15 20:39:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2022-03-15 20:39:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2022-03-15 20:39:25,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 20:39:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:39:25,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:39:25,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2022-03-15 20:39:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2022-03-15 20:39:25,806 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2022-03-15 20:39:25,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-15 20:39:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-15 20:39:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-15 20:39:25,807 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2022-03-15 20:39:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2022-03-15 20:39:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2022-03-15 20:39:25,807 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-03-15 20:39:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-03-15 20:39:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-03-15 20:39:25,810 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2022-03-15 20:39:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2022-03-15 20:39:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2022-03-15 20:39:25,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-03-15 20:39:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-03-15 20:39:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-03-15 20:39:25,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2022-03-15 20:39:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2022-03-15 20:39:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2022-03-15 20:39:25,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-03-15 20:39:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-03-15 20:39:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-03-15 20:39:25,813 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:39:25,852 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:39:25,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:39:25,957 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:39:25,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:39:25,964 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 20:39:25,965 INFO L202 PluginConnector]: Adding new model example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:39:25 BoogieIcfgContainer [2022-03-15 20:39:25,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:39:25,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:39:25,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:39:25,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:39:25,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:39:25" (1/2) ... [2022-03-15 20:39:25,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262396ee and model type example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:39:25, skipping insertion in model container [2022-03-15 20:39:25,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:39:25" (2/2) ... [2022-03-15 20:39:25,972 INFO L111 eAbstractionObserver]: Analyzing ICFG example_16.bpl [2022-03-15 20:39:25,976 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:39:25,976 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:39:25,976 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 20:39:25,976 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:39:26,124 INFO L148 ThreadInstanceAdder]: Constructed 256 joinOtherThreadTransitions. [2022-03-15 20:39:26,172 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:39:26,178 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:39:26,178 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-03-15 20:39:26,205 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:39:26,216 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 323 transitions, 1494 flow [2022-03-15 20:39:26,223 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 323 transitions, 1494 flow [2022-03-15 20:39:26,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 323 transitions, 1494 flow [2022-03-15 20:40:00,753 INFO L129 PetriNetUnfolder]: 458753/524339 cut-off events. [2022-03-15 20:40:00,753 INFO L130 PetriNetUnfolder]: For 524288/524288 co-relation queries the response was YES. [2022-03-15 20:40:05,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048676 conditions, 524339 events. 458753/524339 cut-off events. For 524288/524288 co-relation queries the response was YES. Maximal size of possible extension queue 13495. Compared 2202031 event pairs, 0 based on Foata normal form. 0/524338 useless extension candidates. Maximal degree in co-relation 491597. Up to 102960 conditions per place. [2022-03-15 20:40:19,910 INFO L116 LiptonReduction]: Number of co-enabled transitions 15840 [2022-03-15 20:40:20,324 INFO L131 LiptonReduction]: Checked pairs total: 113592 [2022-03-15 20:40:20,325 INFO L133 LiptonReduction]: Total number of compositions: 17 [2022-03-15 20:40:20,360 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 306 transitions, 1460 flow