/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_17.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:44:40,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:44:40,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:44:40,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 04:44:40,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 04:44:40,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 04:44:40,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 04:44:40,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 04:44:40,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 04:44:40,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 04:44:40,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 04:44:40,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 04:44:40,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 04:44:40,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 04:44:40,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 04:44:40,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 04:44:40,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 04:44:40,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 04:44:40,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 04:44:40,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 04:44:40,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 04:44:40,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 04:44:40,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 04:44:40,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 04:44:40,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 04:44:40,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 04:44:40,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 04:44:40,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 04:44:40,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 04:44:40,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 04:44:40,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 04:44:40,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 04:44:40,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 04:44:40,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 04:44:40,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 04:44:40,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 04:44:40,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 04:44:40,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 04:44:40,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:44:40,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:44:40,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:44:40,354 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.epf [2021-03-11 04:44:40,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:44:40,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:44:40,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:44:40,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:44:40,396 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:44:40,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:44:40,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:44:40,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:44:40,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:44:40,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:44:40,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:44:40,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:44:40,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:44:40,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:44:40,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:44:40,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:44:40,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:44:40,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:44:40,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:44:40,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:44:40,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:44:40,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:44:40,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:44:40,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:44:40,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:44:40,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:44:40,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:44:40,401 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:44:40,401 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:44:40,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:44:40,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:44:40,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:44:40,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:44:40,699 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 04:44:40,700 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 04:44:40,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_17.bpl [2021-03-11 04:44:40,701 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_17.bpl' [2021-03-11 04:44:40,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:44:40,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 04:44:40,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:44:40,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:44:40,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:44:40,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:44:40,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:44:40,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:44:40,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:44:40,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/1) ... [2021-03-11 04:44:40,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:44:40,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:44:40,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:44:40,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:44:40,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (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 [2021-03-11 04:44:40,852 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_16 given in one single declaration [2021-03-11 04:44:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure set_16 [2021-03-11 04:44:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure set_16 [2021-03-11 04:44:40,853 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2021-03-11 04:44:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2021-03-11 04:44:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2021-03-11 04:44:40,853 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_15 given in one single declaration [2021-03-11 04:44:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure set_15 [2021-03-11 04:44:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure set_15 [2021-03-11 04:44:40,854 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 04:44:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 04:44:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 04:44:40,854 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 04:44:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 04:44:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 04:44:40,854 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 04:44:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 04:44:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 04:44:40,855 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 04:44:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 04:44:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 04:44:40,855 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 04:44:40,855 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 04:44:40,855 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 04:44:40,855 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-11 04:44:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-11 04:44:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-11 04:44:40,856 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 04:44:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:44:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:44:40,856 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-03-11 04:44:40,856 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-03-11 04:44:40,856 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-03-11 04:44:40,857 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 04:44:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 04:44:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 04:44:40,857 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-03-11 04:44:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-03-11 04:44:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-03-11 04:44:40,857 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 04:44:40,857 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 04:44:40,857 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 04:44:40,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-11 04:44:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-11 04:44:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-11 04:44:40,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 04:44:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 04:44:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 04:44:40,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-03-11 04:44:40,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-03-11 04:44:40,858 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-03-11 04:44:40,859 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 04:44:40,859 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 04:44:40,859 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 04:44:40,860 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 04:44:41,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:44:41,085 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 04:44:41,086 INFO L202 PluginConnector]: Adding new model example_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:44:41 BoogieIcfgContainer [2021-03-11 04:44:41,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:44:41,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:44:41,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:44:41,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:44:41,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:44:40" (1/2) ... [2021-03-11 04:44:41,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25eb705b and model type example_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:44:41, skipping insertion in model container [2021-03-11 04:44:41,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:44:41" (2/2) ... [2021-03-11 04:44:41,108 INFO L111 eAbstractionObserver]: Analyzing ICFG example_17.bpl [2021-03-11 04:44:41,112 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:44:41,115 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 04:44:41,116 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 04:44:41,463 INFO L149 ThreadInstanceAdder]: Constructed 289 joinOtherThreadTransitions. [2021-03-11 04:44:41,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-03-11 04:44:41,507 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:44:41,508 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:44:41,508 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:44:41,508 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:44:41,508 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:44:41,508 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:44:41,508 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:44:41,508 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:44:41,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 360 transitions, 1672 flow [2021-03-11 04:46:44,416 INFO L129 PetriNetUnfolder]: 983041/1114166 cut-off events. [2021-03-11 04:46:44,416 INFO L130 PetriNetUnfolder]: For 1114112/1114112 co-relation queries the response was YES. [2021-03-11 04:46:55,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2228330 conditions, 1114166 events. 983041/1114166 cut-off events. For 1114112/1114112 co-relation queries the response was YES. Maximal size of possible extension queue 26365. Compared 4676858 event pairs, 0 based on Foata normal form. 0/1114165 useless extension candidates. Maximal degree in co-relation 1048658. Up to 218790 conditions per place. [2021-03-11 04:46:55,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 360 transitions, 1672 flow [2021-03-11 04:47:03,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 341 transitions, 1600 flow [2021-03-11 04:49:11,630 INFO L129 PetriNetUnfolder]: 983041/1114163 cut-off events. [2021-03-11 04:49:11,630 INFO L130 PetriNetUnfolder]: For 1114112/1114112 co-relation queries the response was YES. [2021-03-11 04:49:11,630 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:49:11,631 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:49:11,631 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr16INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 04:49:11,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:49:11,636 INFO L82 PathProgramCache]: Analyzing trace with hash -746077164, now seen corresponding path program 1 times [2021-03-11 04:49:11,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:49:11,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325478360] [2021-03-11 04:49:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:49:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:49:11,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:49:11,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:49:11,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:49:11,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:49:11,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:49:11,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:49:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:49:11,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325478360] [2021-03-11 04:49:11,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:49:11,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:49:11,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432067377] [2021-03-11 04:49:11,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:49:11,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:49:11,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:49:11,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:49:11,828 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 360 [2021-03-11 04:49:11,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 341 transitions, 1600 flow. Second operand has 3 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 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) [2021-03-11 04:49:11,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:49:11,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 360 [2021-03-11 04:49:11,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:50:11,607 INFO L129 PetriNetUnfolder]: 460689/526973 cut-off events. [2021-03-11 04:50:11,607 INFO L130 PetriNetUnfolder]: For 722833/722833 co-relation queries the response was YES. [2021-03-11 04:50:16,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1054645 conditions, 526973 events. 460689/526973 cut-off events. For 722833/722833 co-relation queries the response was YES. Maximal size of possible extension queue 13495. Compared 2463878 event pairs, 0 based on Foata normal form. 64839/591812 useless extension candidates. Maximal degree in co-relation 1048619. Up to 102960 conditions per place. [2021-03-11 04:50:19,277 INFO L132 encePairwiseOnDemand]: 346/360 looper letters, 4 selfloop transitions, 1 changer transitions 0/328 dead transitions. [2021-03-11 04:50:19,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 328 transitions, 1545 flow [2021-03-11 04:50:19,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:50:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:50:19,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1044 transitions. [2021-03-11 04:50:19,291 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9666666666666667 [2021-03-11 04:50:19,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1044 transitions. [2021-03-11 04:50:19,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1044 transitions. [2021-03-11 04:50:19,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:50:19,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1044 transitions. [2021-03-11 04:50:19,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 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) [2021-03-11 04:50:19,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 360.0) internal successors, (1440), 4 states have internal predecessors, (1440), 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) [2021-03-11 04:50:19,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 360.0) internal successors, (1440), 4 states have internal predecessors, (1440), 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) [2021-03-11 04:50:19,313 INFO L185 Difference]: Start difference. First operand has 121 places, 341 transitions, 1600 flow. Second operand 3 states and 1044 transitions. [2021-03-11 04:50:19,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 328 transitions, 1545 flow