/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 07:44:56,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 07:44:56,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 07:44:56,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 07:44:56,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 07:44:56,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 07:44:56,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 07:44:56,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 07:44:56,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 07:44:56,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 07:44:56,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 07:44:56,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 07:44:56,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 07:44:56,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 07:44:56,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 07:44:56,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 07:44:56,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 07:44:56,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 07:44:56,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 07:44:56,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 07:44:56,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 07:44:56,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 07:44:56,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 07:44:56,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 07:44:56,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 07:44:56,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 07:44:56,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 07:44:56,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 07:44:56,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 07:44:56,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 07:44:56,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 07:44:56,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 07:44:56,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 07:44:56,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 07:44:56,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 07:44:56,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 07:44:56,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 07:44:56,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 07:44:56,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 07:44:56,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 07:44:56,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 07:44:56,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 07:44:56,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 07:44:56,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 07:44:56,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 07:44:56,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 07:44:56,384 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 07:44:56,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 07:44:56,384 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 07:44:56,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 07:44:56,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 07:44:56,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 07:44:56,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 07:44:56,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 07:44:56,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 07:44:56,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 07:44:56,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 07:44:56,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 07:44:56,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 07:44:56,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 07:44:56,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 07:44:56,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:44:56,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 07:44:56,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 07:44:56,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 07:44:56,387 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 07:44:56,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 07:44:56,387 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 07:44:56,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 07:44:56,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 07:44:56,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 07:44:56,685 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 07:44:56,686 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 07:44:56,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl [2021-08-13 07:44:56,687 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl' [2021-08-13 07:44:56,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 07:44:56,710 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 07:44:56,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 07:44:56,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 07:44:56,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 07:44:56,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 07:44:56,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 07:44:56,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 07:44:56,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 07:44:56,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/1) ... [2021-08-13 07:44:56,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 07:44:56,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 07:44:56,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 07:44:56,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 07:44:56,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (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 [2021-08-13 07:44:56,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2021-08-13 07:44:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2021-08-13 07:44:56,811 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2021-08-13 07:44:56,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_15 given in one single declaration [2021-08-13 07:44:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure set_15 [2021-08-13 07:44:56,811 INFO L138 BoogieDeclarations]: Found implementation of procedure set_15 [2021-08-13 07:44:56,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 07:44:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 07:44:56,811 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 07:44:56,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 07:44:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 07:44:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 07:44:56,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 07:44:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 07:44:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 07:44:56,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 07:44:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 07:44:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 07:44:56,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 07:44:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 07:44:56,813 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 07:44:56,813 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 07:44:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 07:44:56,813 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 07:44:56,813 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 07:44:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 07:44:56,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 07:44:56,813 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-08-13 07:44:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-08-13 07:44:56,813 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-08-13 07:44:56,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 07:44:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 07:44:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 07:44:56,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-08-13 07:44:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-08-13 07:44:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-08-13 07:44:56,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 07:44:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 07:44:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 07:44:56,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 07:44:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 07:44:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 07:44:56,815 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 07:44:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 07:44:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 07:44:56,815 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-08-13 07:44:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-08-13 07:44:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-08-13 07:44:56,815 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 07:44:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 07:44:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 07:44:56,816 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 07:44:56,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 07:44:56,977 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 07:44:56,979 INFO L202 PluginConnector]: Adding new model example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:44:56 BoogieIcfgContainer [2021-08-13 07:44:56,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 07:44:56,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 07:44:56,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 07:44:56,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 07:44:56,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:56" (1/2) ... [2021-08-13 07:44:56,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3b5b18 and model type example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:44:56, skipping insertion in model container [2021-08-13 07:44:56,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:44:56" (2/2) ... [2021-08-13 07:44:56,984 INFO L111 eAbstractionObserver]: Analyzing ICFG example_16.bpl [2021-08-13 07:44:56,987 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 07:44:56,988 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 07:44:56,988 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 07:44:57,268 INFO L149 ThreadInstanceAdder]: Constructed 256 joinOtherThreadTransitions. [2021-08-13 07:44:57,284 INFO L255 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-08-13 07:44:57,297 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 07:44:57,297 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 07:44:57,297 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 07:44:57,297 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 07:44:57,297 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 07:44:57,297 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 07:44:57,298 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 07:44:57,298 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 07:44:57,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 323 transitions, 1494 flow [2021-08-13 07:45:39,251 INFO L129 PetriNetUnfolder]: 458753/524339 cut-off events. [2021-08-13 07:45:39,251 INFO L130 PetriNetUnfolder]: For 524288/524288 co-relation queries the response was YES. [2021-08-13 07:45:44,128 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 2150347 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. [2021-08-13 07:45:44,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 323 transitions, 1494 flow [2021-08-13 07:45:47,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 305 transitions, 1426 flow