/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 02:39:45,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 02:39:45,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 02:39:45,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 02:39:45,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 02:39:45,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 02:39:45,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 02:39:45,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 02:39:45,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 02:39:45,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 02:39:45,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 02:39:45,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 02:39:45,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 02:39:45,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 02:39:45,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 02:39:45,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 02:39:45,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 02:39:45,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 02:39:45,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 02:39:45,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 02:39:45,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 02:39:45,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 02:39:45,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 02:39:45,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 02:39:45,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 02:39:45,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 02:39:45,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 02:39:45,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 02:39:45,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 02:39:45,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 02:39:45,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 02:39:45,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 02:39:45,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 02:39:45,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 02:39:45,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 02:39:45,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 02:39:45,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 02:39:45,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 02:39:45,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 02:39:45,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 02:39:45,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 02:39:45,271 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.epf [2021-08-13 02:39:45,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 02:39:45,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 02:39:45,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 02:39:45,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 02:39:45,292 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 02:39:45,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 02:39:45,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 02:39:45,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 02:39:45,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 02:39:45,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 02:39:45,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 02:39:45,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 02:39:45,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 02:39:45,294 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 02:39:45,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 02:39:45,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 02:39:45,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 02:39:45,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 02:39:45,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 02:39:45,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 02:39:45,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 02:39:45,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 02:39:45,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 02:39:45,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 02:39:45,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 02:39:45,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 02:39:45,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 02:39:45,296 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 02:39:45,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 02:39:45,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 02:39:45,297 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 02:39:45,297 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 02:39:45,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 02:39:45,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 02:39:45,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 02:39:45,671 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 02:39:45,672 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 02:39:45,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl [2021-08-13 02:39:45,673 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl' [2021-08-13 02:39:45,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 02:39:45,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 02:39:45,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 02:39:45,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 02:39:45,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 02:39:45,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 02:39:45,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 02:39:45,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 02:39:45,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 02:39:45,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/1) ... [2021-08-13 02:39:45,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 02:39:45,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 02:39:45,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 02:39:45,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 02:39:45,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (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 02:39:45,848 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 02:39:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 02:39:45,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 02:39:45,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 02:39:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 02:39:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 02:39:45,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 02:39:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 02:39:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 02:39:45,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 02:39:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 02:39:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 02:39:45,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 02:39:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 02:39:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 02:39:45,852 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 02:39:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 02:39:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 02:39:45,853 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 02:39:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 02:39:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 02:39:45,854 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-08-13 02:39:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-08-13 02:39:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-08-13 02:39:45,855 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 02:39:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 02:39:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 02:39:45,857 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-08-13 02:39:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-08-13 02:39:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-08-13 02:39:45,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 02:39:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 02:39:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 02:39:45,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 02:39:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 02:39:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 02:39:45,863 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 02:39:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 02:39:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 02:39:45,863 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-08-13 02:39:45,864 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-08-13 02:39:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-08-13 02:39:45,868 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 02:39:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 02:39:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 02:39:45,870 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 02:39:46,028 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 02:39:46,028 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 02:39:46,030 INFO L202 PluginConnector]: Adding new model example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 02:39:46 BoogieIcfgContainer [2021-08-13 02:39:46,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 02:39:46,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 02:39:46,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 02:39:46,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 02:39:46,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:39:45" (1/2) ... [2021-08-13 02:39:46,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c9cd16 and model type example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 02:39:46, skipping insertion in model container [2021-08-13 02:39:46,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 02:39:46" (2/2) ... [2021-08-13 02:39:46,036 INFO L111 eAbstractionObserver]: Analyzing ICFG example_14.bpl [2021-08-13 02:39:46,041 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 02:39:46,041 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 02:39:46,042 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 02:39:46,376 INFO L149 ThreadInstanceAdder]: Constructed 196 joinOtherThreadTransitions. [2021-08-13 02:39:46,398 INFO L255 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-08-13 02:39:46,427 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 02:39:46,427 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 02:39:46,427 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 02:39:46,427 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 02:39:46,428 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 02:39:46,428 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 02:39:46,428 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 02:39:46,428 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 02:39:46,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 255 transitions, 1168 flow [2021-08-13 02:39:55,334 INFO L129 PetriNetUnfolder]: 98305/114733 cut-off events. [2021-08-13 02:39:55,334 INFO L130 PetriNetUnfolder]: For 114688/114688 co-relation queries the response was YES. [2021-08-13 02:39:56,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229464 conditions, 114733 events. 98305/114733 cut-off events. For 114688/114688 co-relation queries the response was YES. Maximal size of possible extension queue 3628. Compared 465637 event pairs, 0 based on Foata normal form. 0/114732 useless extension candidates. Maximal degree in co-relation 106563. Up to 24024 conditions per place. [2021-08-13 02:39:56,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 255 transitions, 1168 flow [2021-08-13 02:39:57,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 239 transitions, 1108 flow [2021-08-13 02:40:03,783 INFO L129 PetriNetUnfolder]: 98305/114730 cut-off events. [2021-08-13 02:40:03,783 INFO L130 PetriNetUnfolder]: For 114688/114688 co-relation queries the response was YES. [2021-08-13 02:40:03,784 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:03,784 INFO L266 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] [2021-08-13 02:40:03,785 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:03,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:03,790 INFO L82 PathProgramCache]: Analyzing trace with hash 927623714, now seen corresponding path program 1 times [2021-08-13 02:40:03,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:03,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188820796] [2021-08-13 02:40:03,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:03,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:03,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:03,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:03,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:03,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:03,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:03,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:03,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188820796] [2021-08-13 02:40:03,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188820796] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:03,942 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:03,942 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:03,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851276877] [2021-08-13 02:40:03,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:03,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:03,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:03,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:03,976 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:03,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 239 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:03,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:03,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:03,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:14,810 INFO L129 PetriNetUnfolder]: 94418/110466 cut-off events. [2021-08-13 02:40:14,810 INFO L130 PetriNetUnfolder]: For 127186/127186 co-relation queries the response was YES. [2021-08-13 02:40:15,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228748 conditions, 110466 events. 94418/110466 cut-off events. For 127186/127186 co-relation queries the response was YES. Maximal size of possible extension queue 3628. Compared 539528 event pairs, 0 based on Foata normal form. 378/110844 useless extension candidates. Maximal degree in co-relation 108774. Up to 24024 conditions per place. [2021-08-13 02:40:16,500 INFO L132 encePairwiseOnDemand]: 250/255 looper letters, 10 selfloop transitions, 1 changer transitions 0/235 dead transitions. [2021-08-13 02:40:16,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 235 transitions, 1110 flow [2021-08-13 02:40:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:16,513 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:16,514 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:16,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:16,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:16,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:16,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:16,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:16,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:16,537 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 2 predicate places. [2021-08-13 02:40:16,537 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 235 transitions, 1110 flow [2021-08-13 02:40:16,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:16,537 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:16,538 INFO L266 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] [2021-08-13 02:40:16,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 02:40:16,538 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:16,539 INFO L82 PathProgramCache]: Analyzing trace with hash 265140278, now seen corresponding path program 1 times [2021-08-13 02:40:16,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:16,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134018216] [2021-08-13 02:40:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:16,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:16,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:16,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:16,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:16,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:16,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:16,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:16,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134018216] [2021-08-13 02:40:16,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134018216] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:16,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:16,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:16,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123563119] [2021-08-13 02:40:16,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:16,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:16,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:16,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:16,576 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:16,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 235 transitions, 1110 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:16,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:16,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:16,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:19,779 INFO L129 PetriNetUnfolder]: 43300/51613 cut-off events. [2021-08-13 02:40:19,780 INFO L130 PetriNetUnfolder]: For 82625/82625 co-relation queries the response was YES. [2021-08-13 02:40:20,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107484 conditions, 51613 events. 43300/51613 cut-off events. For 82625/82625 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 245129 event pairs, 0 based on Foata normal form. 7515/59128 useless extension candidates. Maximal degree in co-relation 104164. Up to 12012 conditions per place. [2021-08-13 02:40:20,368 INFO L132 encePairwiseOnDemand]: 244/255 looper letters, 4 selfloop transitions, 1 changer transitions 0/225 dead transitions. [2021-08-13 02:40:20,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 225 transitions, 1070 flow [2021-08-13 02:40:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:20,371 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:20,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:20,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:20,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:20,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:20,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:20,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:20,376 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:20,377 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 4 predicate places. [2021-08-13 02:40:20,377 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 225 transitions, 1070 flow [2021-08-13 02:40:20,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:20,378 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:20,378 INFO L266 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] [2021-08-13 02:40:20,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 02:40:20,378 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:20,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:20,379 INFO L82 PathProgramCache]: Analyzing trace with hash 46224474, now seen corresponding path program 1 times [2021-08-13 02:40:20,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:20,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145765186] [2021-08-13 02:40:20,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:20,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:20,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:20,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:20,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:20,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:20,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:20,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:20,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145765186] [2021-08-13 02:40:20,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145765186] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:20,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:20,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:20,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449569278] [2021-08-13 02:40:20,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:20,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:20,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:20,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:20,423 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:20,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 225 transitions, 1070 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:20,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:20,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:20,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:22,214 INFO L129 PetriNetUnfolder]: 22356/27434 cut-off events. [2021-08-13 02:40:22,214 INFO L130 PetriNetUnfolder]: For 43360/43360 co-relation queries the response was YES. [2021-08-13 02:40:22,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58252 conditions, 27434 events. 22356/27434 cut-off events. For 43360/43360 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 130788 event pairs, 0 based on Foata normal form. 3070/30504 useless extension candidates. Maximal degree in co-relation 54851. Up to 5544 conditions per place. [2021-08-13 02:40:22,469 INFO L132 encePairwiseOnDemand]: 246/255 looper letters, 6 selfloop transitions, 1 changer transitions 0/217 dead transitions. [2021-08-13 02:40:22,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 217 transitions, 1044 flow [2021-08-13 02:40:22,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:22,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:22,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:22,472 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:22,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:22,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:22,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:22,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:22,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:22,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:22,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:22,477 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 6 predicate places. [2021-08-13 02:40:22,477 INFO L482 AbstractCegarLoop]: Abstraction has has 106 places, 217 transitions, 1044 flow [2021-08-13 02:40:22,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:22,477 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:22,478 INFO L266 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] [2021-08-13 02:40:22,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 02:40:22,478 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:22,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:22,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1758934324, now seen corresponding path program 1 times [2021-08-13 02:40:22,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:22,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031657518] [2021-08-13 02:40:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:22,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:22,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:22,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:22,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:22,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:22,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031657518] [2021-08-13 02:40:22,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031657518] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:22,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:22,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:22,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447596711] [2021-08-13 02:40:22,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:22,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:22,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:22,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:22,538 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:22,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 217 transitions, 1044 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:22,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:22,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:22,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:23,910 INFO L129 PetriNetUnfolder]: 18746/23318 cut-off events. [2021-08-13 02:40:23,910 INFO L130 PetriNetUnfolder]: For 34127/34127 co-relation queries the response was YES. [2021-08-13 02:40:24,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51489 conditions, 23318 events. 18746/23318 cut-off events. For 34127/34127 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 114395 event pairs, 0 based on Foata normal form. 386/23704 useless extension candidates. Maximal degree in co-relation 48007. Up to 5544 conditions per place. [2021-08-13 02:40:24,264 INFO L132 encePairwiseOnDemand]: 249/255 looper letters, 9 selfloop transitions, 1 changer transitions 0/212 dead transitions. [2021-08-13 02:40:24,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 212 transitions, 1039 flow [2021-08-13 02:40:24,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:24,268 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:24,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:24,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:24,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:24,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:24,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:24,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:24,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:24,277 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2021-08-13 02:40:24,277 INFO L482 AbstractCegarLoop]: Abstraction has has 108 places, 212 transitions, 1039 flow [2021-08-13 02:40:24,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:24,284 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:24,284 INFO L266 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] [2021-08-13 02:40:24,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 02:40:24,285 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:24,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:24,285 INFO L82 PathProgramCache]: Analyzing trace with hash -958813692, now seen corresponding path program 1 times [2021-08-13 02:40:24,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:24,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535500644] [2021-08-13 02:40:24,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:24,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:24,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:24,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:24,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:24,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:24,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:24,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:24,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535500644] [2021-08-13 02:40:24,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535500644] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:24,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:24,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:24,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657819073] [2021-08-13 02:40:24,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:24,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:24,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:24,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:24,343 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:24,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 212 transitions, 1039 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:24,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:24,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:24,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:25,760 INFO L129 PetriNetUnfolder]: 18737/23308 cut-off events. [2021-08-13 02:40:25,760 INFO L130 PetriNetUnfolder]: For 36647/36647 co-relation queries the response was YES. [2021-08-13 02:40:25,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53313 conditions, 23308 events. 18737/23308 cut-off events. For 36647/36647 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 113977 event pairs, 0 based on Foata normal form. 1/23309 useless extension candidates. Maximal degree in co-relation 49750. Up to 5544 conditions per place. [2021-08-13 02:40:25,952 INFO L132 encePairwiseOnDemand]: 253/255 looper letters, 13 selfloop transitions, 1 changer transitions 0/211 dead transitions. [2021-08-13 02:40:25,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 211 transitions, 1062 flow [2021-08-13 02:40:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:25,954 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:25,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:25,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:25,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:25,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:25,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:25,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:25,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:25,959 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 10 predicate places. [2021-08-13 02:40:25,959 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 211 transitions, 1062 flow [2021-08-13 02:40:25,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:25,960 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:25,960 INFO L266 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] [2021-08-13 02:40:25,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 02:40:25,960 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:25,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:25,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1176074936, now seen corresponding path program 1 times [2021-08-13 02:40:25,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:25,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281966496] [2021-08-13 02:40:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:25,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:25,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:25,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:25,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:25,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:25,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:25,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:25,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:25,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281966496] [2021-08-13 02:40:25,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281966496] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:25,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:25,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:25,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419482398] [2021-08-13 02:40:25,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:25,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:25,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:25,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:25,996 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:25,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 211 transitions, 1062 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:25,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:25,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:25,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:26,677 INFO L129 PetriNetUnfolder]: 8259/10741 cut-off events. [2021-08-13 02:40:26,678 INFO L130 PetriNetUnfolder]: For 22476/22476 co-relation queries the response was YES. [2021-08-13 02:40:26,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25184 conditions, 10741 events. 8259/10741 cut-off events. For 22476/22476 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 51904 event pairs, 0 based on Foata normal form. 1464/12205 useless extension candidates. Maximal degree in co-relation 21540. Up to 2310 conditions per place. [2021-08-13 02:40:26,769 INFO L132 encePairwiseOnDemand]: 245/255 looper letters, 5 selfloop transitions, 1 changer transitions 0/202 dead transitions. [2021-08-13 02:40:26,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 202 transitions, 1029 flow [2021-08-13 02:40:26,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:26,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:26,771 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:26,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:26,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:26,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:26,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:26,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:26,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:26,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:26,775 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 12 predicate places. [2021-08-13 02:40:26,775 INFO L482 AbstractCegarLoop]: Abstraction has has 112 places, 202 transitions, 1029 flow [2021-08-13 02:40:26,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:26,776 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:26,776 INFO L266 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] [2021-08-13 02:40:26,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 02:40:26,776 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:26,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:26,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1014788368, now seen corresponding path program 1 times [2021-08-13 02:40:26,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:26,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710855637] [2021-08-13 02:40:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:26,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:26,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:26,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:26,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:26,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:26,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:26,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:26,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710855637] [2021-08-13 02:40:26,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710855637] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:26,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:26,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:26,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017285192] [2021-08-13 02:40:26,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:26,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:26,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:26,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:26,831 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:26,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 202 transitions, 1029 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:26,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:26,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:26,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:27,499 INFO L129 PetriNetUnfolder]: 8196/10669 cut-off events. [2021-08-13 02:40:27,499 INFO L130 PetriNetUnfolder]: For 19757/19757 co-relation queries the response was YES. [2021-08-13 02:40:27,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25902 conditions, 10669 events. 8196/10669 cut-off events. For 19757/19757 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 52144 event pairs, 0 based on Foata normal form. 8/10677 useless extension candidates. Maximal degree in co-relation 22177. Up to 2310 conditions per place. [2021-08-13 02:40:27,734 INFO L132 encePairwiseOnDemand]: 252/255 looper letters, 12 selfloop transitions, 1 changer transitions 0/200 dead transitions. [2021-08-13 02:40:27,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 200 transitions, 1045 flow [2021-08-13 02:40:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:27,736 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:27,736 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:27,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:27,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:27,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:27,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:27,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:27,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:27,740 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 14 predicate places. [2021-08-13 02:40:27,740 INFO L482 AbstractCegarLoop]: Abstraction has has 114 places, 200 transitions, 1045 flow [2021-08-13 02:40:27,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:27,740 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:27,741 INFO L266 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] [2021-08-13 02:40:27,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 02:40:27,741 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:27,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:27,741 INFO L82 PathProgramCache]: Analyzing trace with hash 409637460, now seen corresponding path program 1 times [2021-08-13 02:40:27,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:27,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013838243] [2021-08-13 02:40:27,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:27,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:27,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:27,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:27,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:27,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:27,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:27,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:27,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:27,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013838243] [2021-08-13 02:40:27,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013838243] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:27,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:27,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:27,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936162300] [2021-08-13 02:40:27,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:27,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:27,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:27,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:27,768 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:27,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 200 transitions, 1045 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:27,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:27,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:27,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:28,454 INFO L129 PetriNetUnfolder]: 7980/10417 cut-off events. [2021-08-13 02:40:28,455 INFO L130 PetriNetUnfolder]: For 21134/21134 co-relation queries the response was YES. [2021-08-13 02:40:28,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26184 conditions, 10417 events. 7980/10417 cut-off events. For 21134/21134 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 51315 event pairs, 0 based on Foata normal form. 28/10445 useless extension candidates. Maximal degree in co-relation 22378. Up to 2310 conditions per place. [2021-08-13 02:40:28,535 INFO L132 encePairwiseOnDemand]: 251/255 looper letters, 11 selfloop transitions, 1 changer transitions 0/197 dead transitions. [2021-08-13 02:40:28,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 197 transitions, 1054 flow [2021-08-13 02:40:28,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:28,537 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:28,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:28,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:28,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:28,540 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:28,541 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 16 predicate places. [2021-08-13 02:40:28,541 INFO L482 AbstractCegarLoop]: Abstraction has has 116 places, 197 transitions, 1054 flow [2021-08-13 02:40:28,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:28,541 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:28,541 INFO L266 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] [2021-08-13 02:40:28,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 02:40:28,541 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:28,542 INFO L82 PathProgramCache]: Analyzing trace with hash -852635206, now seen corresponding path program 1 times [2021-08-13 02:40:28,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:28,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116293861] [2021-08-13 02:40:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:28,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:28,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:28,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:28,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:28,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116293861] [2021-08-13 02:40:28,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116293861] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:28,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:28,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:28,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23514675] [2021-08-13 02:40:28,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:28,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:28,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:28,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:28,564 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:28,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 197 transitions, 1054 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:28,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:28,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:28,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:28,769 INFO L129 PetriNetUnfolder]: 2457/3431 cut-off events. [2021-08-13 02:40:28,769 INFO L130 PetriNetUnfolder]: For 9397/9397 co-relation queries the response was YES. [2021-08-13 02:40:28,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8758 conditions, 3431 events. 2457/3431 cut-off events. For 9397/9397 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 16731 event pairs, 0 based on Foata normal form. 748/4179 useless extension candidates. Maximal degree in co-relation 7970. Up to 840 conditions per place. [2021-08-13 02:40:28,796 INFO L132 encePairwiseOnDemand]: 243/255 looper letters, 3 selfloop transitions, 1 changer transitions 0/186 dead transitions. [2021-08-13 02:40:28,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 1007 flow [2021-08-13 02:40:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:28,798 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:28,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:28,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:28,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:28,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:28,801 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 18 predicate places. [2021-08-13 02:40:28,801 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 186 transitions, 1007 flow [2021-08-13 02:40:28,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:28,801 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:28,802 INFO L266 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] [2021-08-13 02:40:28,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 02:40:28,802 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:28,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:28,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1190272126, now seen corresponding path program 1 times [2021-08-13 02:40:28,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:28,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331244653] [2021-08-13 02:40:28,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:28,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:28,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:28,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331244653] [2021-08-13 02:40:28,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331244653] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:28,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:28,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:28,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365137233] [2021-08-13 02:40:28,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:28,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:28,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:28,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:28,824 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:28,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 186 transitions, 1007 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:28,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:28,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:28,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:28,908 INFO L129 PetriNetUnfolder]: 624/969 cut-off events. [2021-08-13 02:40:28,908 INFO L130 PetriNetUnfolder]: For 2915/2915 co-relation queries the response was YES. [2021-08-13 02:40:28,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 969 events. 624/969 cut-off events. For 2915/2915 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4115 event pairs, 0 based on Foata normal form. 301/1270 useless extension candidates. Maximal degree in co-relation 2415. Up to 252 conditions per place. [2021-08-13 02:40:28,920 INFO L132 encePairwiseOnDemand]: 241/255 looper letters, 1 selfloop transitions, 1 changer transitions 0/160 dead transitions. [2021-08-13 02:40:28,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 160 transitions, 863 flow [2021-08-13 02:40:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 02:40:28,922 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 02:40:28,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:28,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 02:40:28,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2021-08-13 02:40:28,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:28,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:28,926 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 20 predicate places. [2021-08-13 02:40:28,926 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 160 transitions, 863 flow [2021-08-13 02:40:28,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:28,926 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:28,926 INFO L266 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] [2021-08-13 02:40:28,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 02:40:28,927 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:28,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1980040420, now seen corresponding path program 1 times [2021-08-13 02:40:28,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:28,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387477020] [2021-08-13 02:40:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:28,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:28,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:28,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:28,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:28,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:28,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387477020] [2021-08-13 02:40:28,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387477020] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:28,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:28,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:28,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361957219] [2021-08-13 02:40:28,948 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:28,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:28,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:28,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:28,950 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:28,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 160 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:28,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:28,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:28,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:28,995 INFO L129 PetriNetUnfolder]: 190/381 cut-off events. [2021-08-13 02:40:28,995 INFO L130 PetriNetUnfolder]: For 1073/1073 co-relation queries the response was YES. [2021-08-13 02:40:28,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 381 events. 190/381 cut-off events. For 1073/1073 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1381 event pairs, 0 based on Foata normal form. 84/465 useless extension candidates. Maximal degree in co-relation 937. Up to 63 conditions per place. [2021-08-13 02:40:28,999 INFO L132 encePairwiseOnDemand]: 247/255 looper letters, 6 selfloop transitions, 1 changer transitions 0/153 dead transitions. [2021-08-13 02:40:28,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 153 transitions, 842 flow [2021-08-13 02:40:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:29,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2021-08-13 02:40:29,001 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9594771241830066 [2021-08-13 02:40:29,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:29,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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) [2021-08-13 02:40:29,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:29,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:29,005 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 22 predicate places. [2021-08-13 02:40:29,005 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 153 transitions, 842 flow [2021-08-13 02:40:29,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:29,005 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:29,005 INFO L266 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] [2021-08-13 02:40:29,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 02:40:29,006 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:29,006 INFO L82 PathProgramCache]: Analyzing trace with hash -274401474, now seen corresponding path program 1 times [2021-08-13 02:40:29,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:29,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315404798] [2021-08-13 02:40:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:29,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:29,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:29,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:29,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:29,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315404798] [2021-08-13 02:40:29,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315404798] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:29,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:29,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:29,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460539363] [2021-08-13 02:40:29,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:29,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:29,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:29,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:29,028 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:29,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 153 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:29,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:29,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:29,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:29,143 INFO L129 PetriNetUnfolder]: 78/213 cut-off events. [2021-08-13 02:40:29,143 INFO L130 PetriNetUnfolder]: For 533/533 co-relation queries the response was YES. [2021-08-13 02:40:29,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 213 events. 78/213 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 665 event pairs, 0 based on Foata normal form. 21/234 useless extension candidates. Maximal degree in co-relation 509. Up to 24 conditions per place. [2021-08-13 02:40:29,144 INFO L132 encePairwiseOnDemand]: 248/255 looper letters, 7 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2021-08-13 02:40:29,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 147 transitions, 828 flow [2021-08-13 02:40:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:29,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2021-08-13 02:40:29,146 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9594771241830066 [2021-08-13 02:40:29,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:29,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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) [2021-08-13 02:40:29,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:29,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:29,150 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 24 predicate places. [2021-08-13 02:40:29,150 INFO L482 AbstractCegarLoop]: Abstraction has has 124 places, 147 transitions, 828 flow [2021-08-13 02:40:29,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:29,150 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:29,151 INFO L266 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] [2021-08-13 02:40:29,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 02:40:29,151 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:29,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:29,151 INFO L82 PathProgramCache]: Analyzing trace with hash 209758146, now seen corresponding path program 1 times [2021-08-13 02:40:29,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:29,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657043683] [2021-08-13 02:40:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:29,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:29,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:40:29,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:29,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:29,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657043683] [2021-08-13 02:40:29,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657043683] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:29,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:29,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:40:29,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24889016] [2021-08-13 02:40:29,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:40:29,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:29,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:40:29,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:40:29,190 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 02:40:29,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 147 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:29,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:29,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 02:40:29,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:29,217 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-08-13 02:40:29,217 INFO L130 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2021-08-13 02:40:29,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 57 events. 0/57 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 12/69 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 02:40:29,217 INFO L132 encePairwiseOnDemand]: 242/255 looper letters, 1 selfloop transitions, 1 changer transitions 0/57 dead transitions. [2021-08-13 02:40:29,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 57 transitions, 250 flow [2021-08-13 02:40:29,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:40:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:40:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2021-08-13 02:40:29,220 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9594771241830066 [2021-08-13 02:40:29,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:29,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2021-08-13 02:40:29,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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) [2021-08-13 02:40:29,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:29,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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) [2021-08-13 02:40:29,223 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2021-08-13 02:40:29,223 INFO L482 AbstractCegarLoop]: Abstraction has has 126 places, 57 transitions, 250 flow [2021-08-13 02:40:29,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 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) [2021-08-13 02:40:29,224 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:29,224 INFO L266 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] [2021-08-13 02:40:29,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 02:40:29,224 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:29,225 INFO L82 PathProgramCache]: Analyzing trace with hash 109262252, now seen corresponding path program 1 times [2021-08-13 02:40:29,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:29,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488024197] [2021-08-13 02:40:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:29,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:29,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:40:29,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:29,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:40:29,432 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:40:29,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:40:29,477 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:40:29,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:40:29,538 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-08-13 02:40:29,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:40:29,600 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-08-13 02:40:29,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-08-13 02:40:29,662 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-08-13 02:40:29,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-08-13 02:40:29,738 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 02:40:29,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 02:40:29,793 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 02:40:29,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 02:40:29,949 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 02:40:29,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 02:40:30,053 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 02:40:30,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 02:40:30,166 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-13 02:40:30,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-13 02:40:30,286 INFO L142 QuantifierPusher]: treesize reduction 108, result has 48.8 percent of original size [2021-08-13 02:40:30,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-08-13 02:40:30,393 INFO L142 QuantifierPusher]: treesize reduction 117, result has 47.3 percent of original size [2021-08-13 02:40:30,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-08-13 02:40:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:30,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:30,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488024197] [2021-08-13 02:40:30,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488024197] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:30,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:30,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-13 02:40:30,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740259924] [2021-08-13 02:40:30,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-08-13 02:40:30,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:30,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-13 02:40:30,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-08-13 02:40:30,489 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 255 [2021-08-13 02:40:30,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 57 transitions, 250 flow. Second operand has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 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) [2021-08-13 02:40:30,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:30,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 255 [2021-08-13 02:40:30,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:40:49,943 INFO L129 PetriNetUnfolder]: 135171/187606 cut-off events. [2021-08-13 02:40:49,944 INFO L130 PetriNetUnfolder]: For 9145/9145 co-relation queries the response was YES. [2021-08-13 02:40:52,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353685 conditions, 187606 events. 135171/187606 cut-off events. For 9145/9145 co-relation queries the response was YES. Maximal size of possible extension queue 12539. Compared 1479228 event pairs, 45057 based on Foata normal form. 1/185849 useless extension candidates. Maximal degree in co-relation 353533. Up to 57345 conditions per place. [2021-08-13 02:40:53,167 INFO L132 encePairwiseOnDemand]: 240/255 looper letters, 104 selfloop transitions, 13 changer transitions 1/160 dead transitions. [2021-08-13 02:40:53,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 160 transitions, 692 flow [2021-08-13 02:40:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 02:40:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 02:40:53,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3943 transitions. [2021-08-13 02:40:53,173 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.966421568627451 [2021-08-13 02:40:53,174 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3943 transitions. [2021-08-13 02:40:53,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3943 transitions. [2021-08-13 02:40:53,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:40:53,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3943 transitions. [2021-08-13 02:40:53,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 246.4375) internal successors, (3943), 16 states have internal predecessors, (3943), 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) [2021-08-13 02:40:53,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 255.0) internal successors, (4335), 17 states have internal predecessors, (4335), 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) [2021-08-13 02:40:53,188 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 255.0) internal successors, (4335), 17 states have internal predecessors, (4335), 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) [2021-08-13 02:40:53,188 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 41 predicate places. [2021-08-13 02:40:53,188 INFO L482 AbstractCegarLoop]: Abstraction has has 141 places, 160 transitions, 692 flow [2021-08-13 02:40:53,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 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) [2021-08-13 02:40:53,189 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:40:53,190 INFO L266 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] [2021-08-13 02:40:53,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 02:40:53,190 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 02:40:53,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:40:53,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1325400386, now seen corresponding path program 2 times [2021-08-13 02:40:53,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:40:53,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119686719] [2021-08-13 02:40:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:40:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:40:53,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:53,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:40:53,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:53,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:40:53,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:40:53,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:40:53,311 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:40:53,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:40:53,326 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:40:53,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:40:53,345 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:40:53,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:40:53,372 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 02:40:53,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 02:40:53,404 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 02:40:53,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 02:40:53,445 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 02:40:53,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 02:40:53,492 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 02:40:53,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 02:40:53,554 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 02:40:53,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 02:40:53,623 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 02:40:53,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 02:40:53,707 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-08-13 02:40:53,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-08-13 02:40:53,798 INFO L142 QuantifierPusher]: treesize reduction 99, result has 50.5 percent of original size [2021-08-13 02:40:53,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-08-13 02:40:53,901 INFO L142 QuantifierPusher]: treesize reduction 117, result has 47.3 percent of original size [2021-08-13 02:40:53,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-08-13 02:40:53,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:40:53,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:40:53,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119686719] [2021-08-13 02:40:53,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119686719] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:40:53,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:40:53,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-13 02:40:53,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657024742] [2021-08-13 02:40:53,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-08-13 02:40:53,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:40:53,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-13 02:40:53,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-08-13 02:40:53,971 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 255 [2021-08-13 02:40:53,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 160 transitions, 692 flow. Second operand has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 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) [2021-08-13 02:40:53,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:40:53,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 255 [2021-08-13 02:40:53,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand