/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 07:44:52,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 07:44:52,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 07:44:52,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 07:44:52,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 07:44:52,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 07:44:52,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 07:44:52,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 07:44:52,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 07:44:52,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 07:44:52,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 07:44:52,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 07:44:52,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 07:44:52,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 07:44:52,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 07:44:52,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 07:44:52,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 07:44:52,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 07:44:52,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 07:44:52,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 07:44:52,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 07:44:52,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 07:44:52,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 07:44:52,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 07:44:52,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 07:44:52,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 07:44:52,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 07:44:52,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 07:44:52,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 07:44:52,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 07:44:52,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 07:44:52,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 07:44:52,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 07:44:52,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 07:44:52,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 07:44:52,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 07:44:52,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 07:44:52,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 07:44:52,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 07:44:52,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 07:44:52,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 07:44:52,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 07:44:52,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 07:44:52,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 07:44:52,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 07:44:52,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 07:44:52,781 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 07:44:52,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 07:44:52,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 07:44:52,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 07:44:52,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 07:44:52,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 07:44:52,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 07:44:52,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 07:44:52,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 07:44:52,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 07:44:52,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 07:44:52,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 07:44:52,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 07:44:52,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 07:44:52,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 07:44:52,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 07:44:52,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 07:44:52,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:44:52,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 07:44:52,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 07:44:52,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 07:44:52,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 07:44:52,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 07:44:52,783 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 07:44:52,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 07:44:52,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 07:44:52,784 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 07:44:52,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 07:44:52,784 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 07:44:52,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 07:44:53,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 07:44:53,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 07:44:53,029 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 07:44:53,030 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 07:44:53,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl [2021-08-13 07:44:53,031 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl' [2021-08-13 07:44:53,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 07:44:53,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 07:44:53,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 07:44:53,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 07:44:53,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 07:44:53,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 07:44:53,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 07:44:53,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 07:44:53,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 07:44:53,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... [2021-08-13 07:44:53,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 07:44:53,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 07:44:53,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 07:44:53,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 07:44:53,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:44:53,129 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2021-08-13 07:44:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2021-08-13 07:44:53,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2021-08-13 07:44:53,130 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 07:44:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 07:44:53,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 07:44:53,130 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 07:44:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 07:44:53,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 07:44:53,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 07:44:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 07:44:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 07:44:53,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 07:44:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 07:44:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 07:44:53,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 07:44:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 07:44:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 07:44:53,133 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 07:44:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 07:44:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 07:44:53,133 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 07:44:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 07:44:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 07:44:53,136 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-08-13 07:44:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-08-13 07:44:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-08-13 07:44:53,137 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 07:44:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 07:44:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 07:44:53,138 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-08-13 07:44:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-08-13 07:44:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-08-13 07:44:53,138 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 07:44:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 07:44:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 07:44:53,141 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 07:44:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 07:44:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 07:44:53,141 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 07:44:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 07:44:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 07:44:53,141 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-08-13 07:44:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-08-13 07:44:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-08-13 07:44:53,142 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 07:44:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 07:44:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 07:44:53,143 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 07:44:53,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 07:44:53,291 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 07:44:53,292 INFO L202 PluginConnector]: Adding new model example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:44:53 BoogieIcfgContainer [2021-08-13 07:44:53,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 07:44:53,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 07:44:53,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 07:44:53,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 07:44:53,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:44:53" (1/2) ... [2021-08-13 07:44:53,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b24623 and model type example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:44:53, skipping insertion in model container [2021-08-13 07:44:53,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:44:53" (2/2) ... [2021-08-13 07:44:53,297 INFO L111 eAbstractionObserver]: Analyzing ICFG example_15.bpl [2021-08-13 07:44:53,300 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 07:44:53,300 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 07:44:53,301 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 07:44:53,532 INFO L149 ThreadInstanceAdder]: Constructed 225 joinOtherThreadTransitions. [2021-08-13 07:44:53,549 INFO L255 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-08-13 07:44:53,563 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 07:44:53,563 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 07:44:53,563 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 07:44:53,563 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 07:44:53,563 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 07:44:53,564 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 07:44:53,564 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 07:44:53,564 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 07:44:53,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 288 transitions, 1326 flow [2021-08-13 07:45:11,505 INFO L129 PetriNetUnfolder]: 212993/245808 cut-off events. [2021-08-13 07:45:11,505 INFO L130 PetriNetUnfolder]: For 245760/245760 co-relation queries the response was YES. [2021-08-13 07:45:13,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 491614 conditions, 245808 events. 212993/245808 cut-off events. For 245760/245760 co-relation queries the response was YES. Maximal size of possible extension queue 7060. Compared 1008684 event pairs, 0 based on Foata normal form. 0/245807 useless extension candidates. Maximal degree in co-relation 229448. Up to 51480 conditions per place. [2021-08-13 07:45:13,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 288 transitions, 1326 flow [2021-08-13 07:45:15,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 271 transitions, 1262 flow [2021-08-13 07:45:33,523 INFO L129 PetriNetUnfolder]: 212993/245805 cut-off events. [2021-08-13 07:45:33,523 INFO L130 PetriNetUnfolder]: For 245760/245760 co-relation queries the response was YES. [2021-08-13 07:45:33,523 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:45:33,525 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, 1, 1, 1, 1] [2021-08-13 07:45:33,525 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:45:33,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:45:33,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1499442976, now seen corresponding path program 1 times [2021-08-13 07:45:33,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:45:33,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761204246] [2021-08-13 07:45:33,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:45:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:45:33,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:33,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:45:33,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:33,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:45:33,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:33,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:45:33,801 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 07:45:33,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:45:33,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761204246] [2021-08-13 07:45:33,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761204246] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:45:33,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:45:33,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:45:33,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814803815] [2021-08-13 07:45:33,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:45:33,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:45:33,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:45:33,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:45:33,824 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:45:33,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 271 transitions, 1262 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:45:33,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:45:33,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:45:33,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:45:44,510 INFO L129 PetriNetUnfolder]: 98501/115036 cut-off events. [2021-08-13 07:45:44,511 INFO L130 PetriNetUnfolder]: For 164037/164037 co-relation queries the response was YES. [2021-08-13 07:45:45,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230180 conditions, 115036 events. 98501/115036 cut-off events. For 164037/164037 co-relation queries the response was YES. Maximal size of possible extension queue 3628. Compared 579643 event pairs, 0 based on Foata normal form. 16278/131314 useless extension candidates. Maximal degree in co-relation 229412. Up to 24024 conditions per place. [2021-08-13 07:45:46,395 INFO L132 encePairwiseOnDemand]: 275/288 looper letters, 3 selfloop transitions, 1 changer transitions 0/259 dead transitions. [2021-08-13 07:45:46,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 259 transitions, 1210 flow [2021-08-13 07:45:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:45:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:45:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2021-08-13 07:45:46,407 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2021-08-13 07:45:46,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2021-08-13 07:45:46,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2021-08-13 07:45:46,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:45:46,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2021-08-13 07:45:46,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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 07:45:46,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:45:46,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:45:46,421 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2021-08-13 07:45:46,421 INFO L482 AbstractCegarLoop]: Abstraction has has 109 places, 259 transitions, 1210 flow [2021-08-13 07:45:46,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:45:46,422 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:45:46,422 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, 1, 1, 1, 1] [2021-08-13 07:45:46,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 07:45:46,422 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:45:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:45:46,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1480000246, now seen corresponding path program 1 times [2021-08-13 07:45:46,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:45:46,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903398775] [2021-08-13 07:45:46,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:45:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:45:46,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:46,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:45:46,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:46,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:45:46,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:46,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:45:46,454 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 07:45:46,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:45:46,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903398775] [2021-08-13 07:45:46,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903398775] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:45:46,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:45:46,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:45:46,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599484446] [2021-08-13 07:45:46,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:45:46,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:45:46,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:45:46,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:45:46,458 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:45:46,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 259 transitions, 1210 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:45:46,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:45:46,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:45:46,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:45:51,381 INFO L129 PetriNetUnfolder]: 65871/78310 cut-off events. [2021-08-13 07:45:51,382 INFO L130 PetriNetUnfolder]: For 98986/98986 co-relation queries the response was YES. [2021-08-13 07:45:52,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160840 conditions, 78310 events. 65871/78310 cut-off events. For 98986/98986 co-relation queries the response was YES. Maximal size of possible extension queue 3067. Compared 395716 event pairs, 0 based on Foata normal form. 4096/82406 useless extension candidates. Maximal degree in co-relation 160056. Up to 18018 conditions per place. [2021-08-13 07:45:52,794 INFO L132 encePairwiseOnDemand]: 280/288 looper letters, 8 selfloop transitions, 1 changer transitions 0/252 dead transitions. [2021-08-13 07:45:52,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 252 transitions, 1193 flow [2021-08-13 07:45:52,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:45:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:45:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2021-08-13 07:45:52,809 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2021-08-13 07:45:52,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2021-08-13 07:45:52,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2021-08-13 07:45:52,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:45:52,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2021-08-13 07:45:52,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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 07:45:52,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:45:52,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:45:52,826 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2021-08-13 07:45:52,826 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 252 transitions, 1193 flow [2021-08-13 07:45:52,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:45:52,827 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:45:52,827 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, 1, 1, 1, 1] [2021-08-13 07:45:52,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 07:45:52,827 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:45:52,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:45:52,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1481312456, now seen corresponding path program 1 times [2021-08-13 07:45:52,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:45:52,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186003681] [2021-08-13 07:45:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:45:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:45:52,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:52,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:45:52,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:52,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:45:52,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:45:52,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:45:52,956 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 07:45:52,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:45:52,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186003681] [2021-08-13 07:45:52,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186003681] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:45:52,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:45:52,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:45:52,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342348803] [2021-08-13 07:45:52,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:45:52,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:45:52,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:45:52,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:45:52,959 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:45:52,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 252 transitions, 1193 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:45:52,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:45:52,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:45:52,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:45:59,121 INFO L129 PetriNetUnfolder]: 65859/78297 cut-off events. [2021-08-13 07:45:59,121 INFO L130 PetriNetUnfolder]: For 98079/98079 co-relation queries the response was YES. [2021-08-13 07:45:59,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166511 conditions, 78297 events. 65859/78297 cut-off events. For 98079/98079 co-relation queries the response was YES. Maximal size of possible extension queue 3067. Compared 389198 event pairs, 0 based on Foata normal form. 1/78298 useless extension candidates. Maximal degree in co-relation 165711. Up to 18018 conditions per place. [2021-08-13 07:46:00,459 INFO L132 encePairwiseOnDemand]: 286/288 looper letters, 14 selfloop transitions, 1 changer transitions 0/251 dead transitions. [2021-08-13 07:46:00,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 251 transitions, 1218 flow [2021-08-13 07:46:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2021-08-13 07:46:00,462 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2021-08-13 07:46:00,462 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2021-08-13 07:46:00,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2021-08-13 07:46:00,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:00,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2021-08-13 07:46:00,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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 07:46:00,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:00,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:00,465 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2021-08-13 07:46:00,466 INFO L482 AbstractCegarLoop]: Abstraction has has 113 places, 251 transitions, 1218 flow [2021-08-13 07:46:00,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:00,466 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:00,466 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, 1, 1, 1, 1] [2021-08-13 07:46:00,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 07:46:00,466 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:00,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:00,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1938447604, now seen corresponding path program 1 times [2021-08-13 07:46:00,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:00,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095161847] [2021-08-13 07:46:00,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:00,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:00,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:00,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:00,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:00,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:00,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:00,494 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 07:46:00,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:00,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095161847] [2021-08-13 07:46:00,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095161847] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:00,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:00,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:00,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7591094] [2021-08-13 07:46:00,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:00,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:00,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:00,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:00,496 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:00,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 251 transitions, 1218 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:00,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:00,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:00,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:02,660 INFO L129 PetriNetUnfolder]: 27579/33503 cut-off events. [2021-08-13 07:46:02,660 INFO L130 PetriNetUnfolder]: For 59150/59150 co-relation queries the response was YES. [2021-08-13 07:46:02,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71475 conditions, 33503 events. 27579/33503 cut-off events. For 59150/59150 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 162602 event pairs, 0 based on Foata normal form. 5589/39092 useless extension candidates. Maximal degree in co-relation 70659. Up to 6435 conditions per place. [2021-08-13 07:46:02,968 INFO L132 encePairwiseOnDemand]: 276/288 looper letters, 4 selfloop transitions, 1 changer transitions 0/240 dead transitions. [2021-08-13 07:46:02,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 240 transitions, 1173 flow [2021-08-13 07:46:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2021-08-13 07:46:02,970 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2021-08-13 07:46:02,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2021-08-13 07:46:02,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2021-08-13 07:46:02,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:02,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2021-08-13 07:46:02,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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 07:46:02,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:02,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:02,974 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2021-08-13 07:46:02,974 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 240 transitions, 1173 flow [2021-08-13 07:46:02,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:02,975 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:02,975 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, 1, 1, 1, 1] [2021-08-13 07:46:02,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 07:46:02,975 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:02,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:02,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1244393698, now seen corresponding path program 1 times [2021-08-13 07:46:02,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:02,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309173042] [2021-08-13 07:46:02,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:02,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:02,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:02,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:02,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:02,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:02,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:02,994 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 07:46:02,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:02,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309173042] [2021-08-13 07:46:02,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309173042] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:02,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:02,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:02,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34599436] [2021-08-13 07:46:02,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:02,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:02,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:02,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:02,995 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:02,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 240 transitions, 1173 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:02,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:02,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:02,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:03,875 INFO L129 PetriNetUnfolder]: 11168/13850 cut-off events. [2021-08-13 07:46:03,875 INFO L130 PetriNetUnfolder]: For 25302/25302 co-relation queries the response was YES. [2021-08-13 07:46:03,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29504 conditions, 13850 events. 11168/13850 cut-off events. For 25302/25302 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 66083 event pairs, 0 based on Foata normal form. 2635/16485 useless extension candidates. Maximal degree in co-relation 29429. Up to 2772 conditions per place. [2021-08-13 07:46:03,977 INFO L132 encePairwiseOnDemand]: 273/288 looper letters, 1 selfloop transitions, 1 changer transitions 0/212 dead transitions. [2021-08-13 07:46:03,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 212 transitions, 1029 flow [2021-08-13 07:46:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:03,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:03,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2021-08-13 07:46:03,979 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2021-08-13 07:46:03,979 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2021-08-13 07:46:03,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2021-08-13 07:46:03,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:03,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2021-08-13 07:46:03,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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 07:46:03,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:03,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:03,983 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 10 predicate places. [2021-08-13 07:46:03,983 INFO L482 AbstractCegarLoop]: Abstraction has has 117 places, 212 transitions, 1029 flow [2021-08-13 07:46:03,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:03,984 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:03,984 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, 1, 1, 1, 1] [2021-08-13 07:46:03,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 07:46:03,984 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:03,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:03,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1136670058, now seen corresponding path program 1 times [2021-08-13 07:46:03,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:03,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535773046] [2021-08-13 07:46:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:03,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:04,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:04,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:04,003 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 07:46:04,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:04,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535773046] [2021-08-13 07:46:04,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535773046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:04,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:04,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:04,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516999242] [2021-08-13 07:46:04,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:04,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:04,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:04,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:04,005 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:04,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 212 transitions, 1029 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:04,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:04,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:04,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:04,453 INFO L129 PetriNetUnfolder]: 5189/6693 cut-off events. [2021-08-13 07:46:04,453 INFO L130 PetriNetUnfolder]: For 11778/11778 co-relation queries the response was YES. [2021-08-13 07:46:04,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14510 conditions, 6693 events. 5189/6693 cut-off events. For 11778/11778 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 30098 event pairs, 0 based on Foata normal form. 967/7660 useless extension candidates. Maximal degree in co-relation 14433. Up to 1260 conditions per place. [2021-08-13 07:46:04,499 INFO L132 encePairwiseOnDemand]: 279/288 looper letters, 6 selfloop transitions, 1 changer transitions 0/204 dead transitions. [2021-08-13 07:46:04,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 204 transitions, 1003 flow [2021-08-13 07:46:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-08-13 07:46:04,501 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9618055555555556 [2021-08-13 07:46:04,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-08-13 07:46:04,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-08-13 07:46:04,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:04,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-08-13 07:46:04,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 07:46:04,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:04,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:04,505 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 12 predicate places. [2021-08-13 07:46:04,505 INFO L482 AbstractCegarLoop]: Abstraction has has 119 places, 204 transitions, 1003 flow [2021-08-13 07:46:04,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:04,505 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:04,505 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, 1, 1, 1, 1] [2021-08-13 07:46:04,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 07:46:04,506 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:04,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:04,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1914795686, now seen corresponding path program 1 times [2021-08-13 07:46:04,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:04,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334373768] [2021-08-13 07:46:04,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:04,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:04,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:04,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:04,526 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 07:46:04,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:04,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334373768] [2021-08-13 07:46:04,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334373768] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:04,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:04,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:04,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905181474] [2021-08-13 07:46:04,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:04,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:04,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:04,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:04,528 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:04,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 204 transitions, 1003 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:04,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:04,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:04,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:04,754 INFO L129 PetriNetUnfolder]: 3219/4341 cut-off events. [2021-08-13 07:46:04,754 INFO L130 PetriNetUnfolder]: For 7699/7699 co-relation queries the response was YES. [2021-08-13 07:46:04,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9823 conditions, 4341 events. 3219/4341 cut-off events. For 7699/7699 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 19536 event pairs, 0 based on Foata normal form. 381/4722 useless extension candidates. Maximal degree in co-relation 9744. Up to 660 conditions per place. [2021-08-13 07:46:04,792 INFO L132 encePairwiseOnDemand]: 281/288 looper letters, 8 selfloop transitions, 1 changer transitions 0/198 dead transitions. [2021-08-13 07:46:04,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 198 transitions, 991 flow [2021-08-13 07:46:04,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:04,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-08-13 07:46:04,794 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9618055555555556 [2021-08-13 07:46:04,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-08-13 07:46:04,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-08-13 07:46:04,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:04,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-08-13 07:46:04,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 07:46:04,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:04,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:04,797 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2021-08-13 07:46:04,797 INFO L482 AbstractCegarLoop]: Abstraction has has 121 places, 198 transitions, 991 flow [2021-08-13 07:46:04,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:04,798 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:04,798 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, 1, 1, 1, 1] [2021-08-13 07:46:04,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 07:46:04,798 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:04,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:04,798 INFO L82 PathProgramCache]: Analyzing trace with hash -209739370, now seen corresponding path program 1 times [2021-08-13 07:46:04,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:04,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107179827] [2021-08-13 07:46:04,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:04,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:04,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:04,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:04,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:04,819 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 07:46:04,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:04,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107179827] [2021-08-13 07:46:04,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107179827] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:04,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:04,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:04,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878302513] [2021-08-13 07:46:04,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:04,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:04,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:04,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:04,820 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:04,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 198 transitions, 991 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:04,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:04,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:04,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:05,177 INFO L129 PetriNetUnfolder]: 2428/3387 cut-off events. [2021-08-13 07:46:05,177 INFO L130 PetriNetUnfolder]: For 6359/6359 co-relation queries the response was YES. [2021-08-13 07:46:05,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8052 conditions, 3387 events. 2428/3387 cut-off events. For 6359/6359 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 15473 event pairs, 0 based on Foata normal form. 162/3549 useless extension candidates. Maximal degree in co-relation 7971. Up to 660 conditions per place. [2021-08-13 07:46:05,200 INFO L132 encePairwiseOnDemand]: 282/288 looper letters, 9 selfloop transitions, 1 changer transitions 0/193 dead transitions. [2021-08-13 07:46:05,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 193 transitions, 986 flow [2021-08-13 07:46:05,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-08-13 07:46:05,202 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9618055555555556 [2021-08-13 07:46:05,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:05,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 07:46:05,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,205 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 16 predicate places. [2021-08-13 07:46:05,205 INFO L482 AbstractCegarLoop]: Abstraction has has 123 places, 193 transitions, 986 flow [2021-08-13 07:46:05,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,205 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:05,205 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, 1, 1, 1, 1] [2021-08-13 07:46:05,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 07:46:05,205 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:05,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:05,206 INFO L82 PathProgramCache]: Analyzing trace with hash -2020910382, now seen corresponding path program 1 times [2021-08-13 07:46:05,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:05,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045008733] [2021-08-13 07:46:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:05,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:05,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,244 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 07:46:05,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:05,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045008733] [2021-08-13 07:46:05,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045008733] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:05,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:05,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:05,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532491245] [2021-08-13 07:46:05,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:05,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:05,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:05,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:05,245 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:05,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 193 transitions, 986 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:05,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:05,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:05,322 INFO L129 PetriNetUnfolder]: 755/1190 cut-off events. [2021-08-13 07:46:05,322 INFO L130 PetriNetUnfolder]: For 2805/2805 co-relation queries the response was YES. [2021-08-13 07:46:05,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2882 conditions, 1190 events. 755/1190 cut-off events. For 2805/2805 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4917 event pairs, 0 based on Foata normal form. 228/1418 useless extension candidates. Maximal degree in co-relation 2799. Up to 165 conditions per place. [2021-08-13 07:46:05,331 INFO L132 encePairwiseOnDemand]: 278/288 looper letters, 5 selfloop transitions, 1 changer transitions 0/184 dead transitions. [2021-08-13 07:46:05,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 184 transitions, 953 flow [2021-08-13 07:46:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-08-13 07:46:05,333 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9618055555555556 [2021-08-13 07:46:05,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:05,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 07:46:05,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,336 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 18 predicate places. [2021-08-13 07:46:05,336 INFO L482 AbstractCegarLoop]: Abstraction has has 125 places, 184 transitions, 953 flow [2021-08-13 07:46:05,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,336 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:05,336 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, 1, 1, 1, 1] [2021-08-13 07:46:05,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 07:46:05,336 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:05,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1302055850, now seen corresponding path program 1 times [2021-08-13 07:46:05,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:05,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099597671] [2021-08-13 07:46:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:05,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:05,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,358 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 07:46:05,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:05,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099597671] [2021-08-13 07:46:05,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099597671] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:05,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:05,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:05,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938203006] [2021-08-13 07:46:05,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:05,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:05,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:05,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:05,360 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:05,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 184 transitions, 953 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:05,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:05,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:05,429 INFO L129 PetriNetUnfolder]: 600/993 cut-off events. [2021-08-13 07:46:05,429 INFO L130 PetriNetUnfolder]: For 2134/2134 co-relation queries the response was YES. [2021-08-13 07:46:05,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2533 conditions, 993 events. 600/993 cut-off events. For 2134/2134 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4201 event pairs, 0 based on Foata normal form. 41/1034 useless extension candidates. Maximal degree in co-relation 2448. Up to 165 conditions per place. [2021-08-13 07:46:05,437 INFO L132 encePairwiseOnDemand]: 283/288 looper letters, 10 selfloop transitions, 1 changer transitions 0/180 dead transitions. [2021-08-13 07:46:05,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 180 transitions, 955 flow [2021-08-13 07:46:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:05,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-08-13 07:46:05,439 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9618055555555556 [2021-08-13 07:46:05,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:05,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 07:46:05,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,442 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 20 predicate places. [2021-08-13 07:46:05,442 INFO L482 AbstractCegarLoop]: Abstraction has has 127 places, 180 transitions, 955 flow [2021-08-13 07:46:05,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,442 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:05,442 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, 1, 1, 1, 1] [2021-08-13 07:46:05,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 07:46:05,442 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:05,443 INFO L82 PathProgramCache]: Analyzing trace with hash 141574588, now seen corresponding path program 1 times [2021-08-13 07:46:05,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:05,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954337389] [2021-08-13 07:46:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:05,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:05,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,461 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 07:46:05,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:05,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954337389] [2021-08-13 07:46:05,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954337389] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:05,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:05,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:05,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354357853] [2021-08-13 07:46:05,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:05,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:05,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:05,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:05,463 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:05,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 180 transitions, 955 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:05,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:05,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:05,544 INFO L129 PetriNetUnfolder]: 546/923 cut-off events. [2021-08-13 07:46:05,544 INFO L130 PetriNetUnfolder]: For 2103/2103 co-relation queries the response was YES. [2021-08-13 07:46:05,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2453 conditions, 923 events. 546/923 cut-off events. For 2103/2103 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3990 event pairs, 0 based on Foata normal form. 15/938 useless extension candidates. Maximal degree in co-relation 2366. Up to 165 conditions per place. [2021-08-13 07:46:05,551 INFO L132 encePairwiseOnDemand]: 284/288 looper letters, 11 selfloop transitions, 1 changer transitions 0/177 dead transitions. [2021-08-13 07:46:05,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 177 transitions, 964 flow [2021-08-13 07:46:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-08-13 07:46:05,553 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9618055555555556 [2021-08-13 07:46:05,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:05,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 07:46:05,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,556 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 22 predicate places. [2021-08-13 07:46:05,556 INFO L482 AbstractCegarLoop]: Abstraction has has 129 places, 177 transitions, 964 flow [2021-08-13 07:46:05,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,557 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:05,557 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, 1, 1, 1, 1] [2021-08-13 07:46:05,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 07:46:05,557 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:05,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:05,557 INFO L82 PathProgramCache]: Analyzing trace with hash -101315930, now seen corresponding path program 1 times [2021-08-13 07:46:05,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:05,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120043204] [2021-08-13 07:46:05,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:05,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:05,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,571 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 07:46:05,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:05,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120043204] [2021-08-13 07:46:05,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120043204] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:05,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:05,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:05,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026242618] [2021-08-13 07:46:05,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:05,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:05,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:05,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:05,574 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:05,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 177 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:05,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:05,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:05,602 INFO L129 PetriNetUnfolder]: 63/183 cut-off events. [2021-08-13 07:46:05,602 INFO L130 PetriNetUnfolder]: For 555/555 co-relation queries the response was YES. [2021-08-13 07:46:05,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 183 events. 63/183 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 503 event pairs, 0 based on Foata normal form. 72/255 useless extension candidates. Maximal degree in co-relation 399. Up to 20 conditions per place. [2021-08-13 07:46:05,603 INFO L132 encePairwiseOnDemand]: 274/288 looper letters, 1 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2021-08-13 07:46:05,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 128 transitions, 669 flow [2021-08-13 07:46:05,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-08-13 07:46:05,605 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9618055555555556 [2021-08-13 07:46:05,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:05,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-08-13 07:46:05,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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 07:46:05,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,607 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,608 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 24 predicate places. [2021-08-13 07:46:05,608 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 128 transitions, 669 flow [2021-08-13 07:46:05,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,608 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:05,608 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, 1, 1, 1, 1] [2021-08-13 07:46:05,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 07:46:05,608 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:05,609 INFO L82 PathProgramCache]: Analyzing trace with hash 349961818, now seen corresponding path program 1 times [2021-08-13 07:46:05,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:05,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205593603] [2021-08-13 07:46:05,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:05,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:46:05,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,633 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 07:46:05,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:05,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205593603] [2021-08-13 07:46:05,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205593603] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:05,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:05,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:46:05,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241421639] [2021-08-13 07:46:05,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:46:05,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:05,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:46:05,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:46:05,634 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 288 [2021-08-13 07:46:05,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 128 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:05,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 288 [2021-08-13 07:46:05,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:46:05,652 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-08-13 07:46:05,653 INFO L130 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2021-08-13 07:46:05,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 67 events. 3/67 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 13/80 useless extension candidates. Maximal degree in co-relation 95. Up to 4 conditions per place. [2021-08-13 07:46:05,653 INFO L132 encePairwiseOnDemand]: 277/288 looper letters, 1 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2021-08-13 07:46:05,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 66 transitions, 291 flow [2021-08-13 07:46:05,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:46:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:46:05,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 828 transitions. [2021-08-13 07:46:05,655 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:46:05,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 828 transitions. [2021-08-13 07:46:05,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 828 transitions. [2021-08-13 07:46:05,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:46:05,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 828 transitions. [2021-08-13 07:46:05,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 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 07:46:05,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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 07:46:05,659 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 26 predicate places. [2021-08-13 07:46:05,659 INFO L482 AbstractCegarLoop]: Abstraction has has 133 places, 66 transitions, 291 flow [2021-08-13 07:46:05,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 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 07:46:05,660 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:46:05,660 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, 1, 1, 1, 1] [2021-08-13 07:46:05,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 07:46:05,660 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:46:05,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:46:05,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1636612710, now seen corresponding path program 1 times [2021-08-13 07:46:05,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:46:05,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484102075] [2021-08-13 07:46:05,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:46:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:46:05,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:46:05,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:46:05,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:46:05,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:46:05,755 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 07:46:05,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 07:46:05,777 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 07:46:05,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 07:46:05,805 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-08-13 07:46:05,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 07:46:05,840 INFO L142 QuantifierPusher]: treesize reduction 18, result has 74.6 percent of original size [2021-08-13 07:46:05,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:46:05,885 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.6 percent of original size [2021-08-13 07:46:05,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-08-13 07:46:05,939 INFO L142 QuantifierPusher]: treesize reduction 18, result has 78.3 percent of original size [2021-08-13 07:46:05,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-08-13 07:46:06,052 INFO L142 QuantifierPusher]: treesize reduction 36, result has 67.6 percent of original size [2021-08-13 07:46:06,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-08-13 07:46:06,139 INFO L142 QuantifierPusher]: treesize reduction 45, result has 64.8 percent of original size [2021-08-13 07:46:06,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-08-13 07:46:06,224 INFO L142 QuantifierPusher]: treesize reduction 63, result has 58.0 percent of original size [2021-08-13 07:46:06,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-13 07:46:06,327 INFO L142 QuantifierPusher]: treesize reduction 81, result has 54.5 percent of original size [2021-08-13 07:46:06,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-13 07:46:06,442 INFO L142 QuantifierPusher]: treesize reduction 90, result has 53.8 percent of original size [2021-08-13 07:46:06,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-08-13 07:46:06,569 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-08-13 07:46:06,574 INFO L142 QuantifierPusher]: treesize reduction 108, result has 50.2 percent of original size [2021-08-13 07:46:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-08-13 07:46:06,666 INFO L142 QuantifierPusher]: treesize reduction 126, result has 47.3 percent of original size [2021-08-13 07:46:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-08-13 07:46:06,742 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 07:46:06,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:46:06,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484102075] [2021-08-13 07:46:06,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484102075] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:46:06,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:46:06,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-08-13 07:46:06,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530730753] [2021-08-13 07:46:06,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-08-13 07:46:06,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:46:06,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-13 07:46:06,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-08-13 07:46:06,748 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 288 [2021-08-13 07:46:06,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 66 transitions, 291 flow. Second operand has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 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 07:46:06,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:46:06,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 288 [2021-08-13 07:46:06,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:47:07,184 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-08-13 07:47:08,386 INFO L129 PetriNetUnfolder]: 295602/395973 cut-off events. [2021-08-13 07:47:08,386 INFO L130 PetriNetUnfolder]: For 5296/5296 co-relation queries the response was YES. [2021-08-13 07:47:13,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 744174 conditions, 395973 events. 295602/395973 cut-off events. For 5296/5296 co-relation queries the response was YES. Maximal size of possible extension queue 20601. Compared 2999592 event pairs, 98305 based on Foata normal form. 1/393255 useless extension candidates. Maximal degree in co-relation 744013. Up to 122881 conditions per place. [2021-08-13 07:47:16,025 INFO L132 encePairwiseOnDemand]: 272/288 looper letters, 119 selfloop transitions, 15 changer transitions 0/184 dead transitions. [2021-08-13 07:47:16,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 184 transitions, 795 flow [2021-08-13 07:47:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 07:47:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 07:47:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4742 transitions. [2021-08-13 07:47:16,030 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9685457516339869 [2021-08-13 07:47:16,030 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4742 transitions. [2021-08-13 07:47:16,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4742 transitions. [2021-08-13 07:47:16,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:47:16,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4742 transitions. [2021-08-13 07:47:16,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 278.94117647058823) internal successors, (4742), 17 states have internal predecessors, (4742), 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 07:47:16,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 288.0) internal successors, (5184), 18 states have internal predecessors, (5184), 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 07:47:16,043 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 288.0) internal successors, (5184), 18 states have internal predecessors, (5184), 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 07:47:16,044 INFO L348 CegarLoopForPetriNet]: 107 programPoint places, 42 predicate places. [2021-08-13 07:47:16,044 INFO L482 AbstractCegarLoop]: Abstraction has has 149 places, 184 transitions, 795 flow [2021-08-13 07:47:16,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 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 07:47:16,045 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:47:16,045 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, 1, 1, 1, 1] [2021-08-13 07:47:16,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 07:47:16,046 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr14INUSE_VIOLATION, 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 07:47:16,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:47:16,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1055802876, now seen corresponding path program 2 times [2021-08-13 07:47:16,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:47:16,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726569756] [2021-08-13 07:47:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:47:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:47:16,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:47:16,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:47:16,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:47:16,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:47:16,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:47:16,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:47:16,188 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:47:16,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:47:16,199 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:47:16,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:47:16,215 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:47:16,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:47:16,234 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:47:16,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:47:16,260 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 07:47:16,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:47:16,291 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 07:47:16,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:47:16,404 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 07:47:16,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 07:47:16,468 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 07:47:16,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 07:47:16,549 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 07:47:16,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 07:47:16,643 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-08-13 07:47:16,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-08-13 07:47:16,745 INFO L142 QuantifierPusher]: treesize reduction 99, result has 50.5 percent of original size [2021-08-13 07:47:16,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-08-13 07:47:16,862 INFO L142 QuantifierPusher]: treesize reduction 117, result has 48.7 percent of original size [2021-08-13 07:47:16,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-08-13 07:47:16,999 INFO L142 QuantifierPusher]: treesize reduction 126, result has 47.3 percent of original size [2021-08-13 07:47:17,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-08-13 07:47:17,107 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 07:47:17,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:47:17,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726569756] [2021-08-13 07:47:17,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726569756] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:47:17,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:47:17,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-08-13 07:47:17,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175848392] [2021-08-13 07:47:17,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-08-13 07:47:17,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:47:17,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-13 07:47:17,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-08-13 07:47:17,126 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 288 [2021-08-13 07:47:17,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 184 transitions, 795 flow. Second operand has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 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 07:47:17,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:47:17,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 288 [2021-08-13 07:47:17,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand