/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 04:47:23,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 04:47:23,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 04:47:23,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 04:47:23,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 04:47:23,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 04:47:23,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 04:47:23,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 04:47:23,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 04:47:23,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 04:47:23,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 04:47:23,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 04:47:23,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 04:47:23,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 04:47:23,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 04:47:23,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 04:47:23,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 04:47:23,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 04:47:24,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 04:47:24,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 04:47:24,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 04:47:24,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 04:47:24,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 04:47:24,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 04:47:24,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 04:47:24,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 04:47:24,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 04:47:24,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 04:47:24,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 04:47:24,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 04:47:24,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 04:47:24,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 04:47:24,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 04:47:24,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 04:47:24,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 04:47:24,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 04:47:24,025 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-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 04:47:24,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 04:47:24,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 04:47:24,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 04:47:24,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 04:47:24,045 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 04:47:24,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 04:47:24,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 04:47:24,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 04:47:24,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 04:47:24,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 04:47:24,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 04:47:24,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 04:47:24,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 04:47:24,046 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 04:47:24,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 04:47:24,047 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 04:47:24,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 04:47:24,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 04:47:24,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 04:47:24,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 04:47:24,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 04:47:24,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 04:47:24,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 04:47:24,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 04:47:24,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 04:47:24,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 04:47:24,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 04:47:24,049 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 04:47:24,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 04:47:24,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 04:47:24,049 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 04:47:24,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 04:47:24,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 04:47:24,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 04:47:24,357 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 04:47:24,357 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 04:47:24,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl [2021-03-26 04:47:24,359 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl' [2021-03-26 04:47:24,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 04:47:24,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 04:47:24,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 04:47:24,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 04:47:24,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 04:47:24,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 04:47:24,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 04:47:24,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 04:47:24,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 04:47:24,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... [2021-03-26 04:47:24,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 04:47:24,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 04:47:24,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 04:47:24,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 04:47:24,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 04:47:24,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 04:47:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 04:47:24,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 04:47:24,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 04:47:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 04:47:24,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 04:47:24,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 04:47:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 04:47:24,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 04:47:24,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 04:47:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 04:47:24,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 04:47:24,512 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 04:47:24,769 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 04:47:24,769 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 04:47:24,771 INFO L202 PluginConnector]: Adding new model collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 04:47:24 BoogieIcfgContainer [2021-03-26 04:47:24,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 04:47:24,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 04:47:24,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 04:47:24,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 04:47:24,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:47:24" (1/2) ... [2021-03-26 04:47:24,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4394caaf and model type collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 04:47:24, skipping insertion in model container [2021-03-26 04:47:24,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 04:47:24" (2/2) ... [2021-03-26 04:47:24,776 INFO L111 eAbstractionObserver]: Analyzing ICFG collitem-subst.wvr.bpl [2021-03-26 04:47:24,793 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 04:47:24,797 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 04:47:24,797 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 04:47:24,842 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-26 04:47:24,856 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 04:47:24,874 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 04:47:24,875 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 04:47:24,875 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 04:47:24,875 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 04:47:24,875 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 04:47:24,875 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 04:47:24,875 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 04:47:24,875 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 04:47:24,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-03-26 04:47:24,909 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 04:47:24,910 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 04:47:24,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 04:47:24,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 62 flow [2021-03-26 04:47:24,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 14 transitions, 46 flow [2021-03-26 04:47:24,921 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:47:24,935 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 14 transitions, 46 flow [2021-03-26 04:47:24,941 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 14 transitions, 46 flow [2021-03-26 04:47:24,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 14 transitions, 46 flow [2021-03-26 04:47:24,960 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-26 04:47:24,960 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 04:47:24,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 14 events. 0/14 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 04:47:24,962 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 04:47:25,154 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-26 04:47:25,154 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 04:47:25,156 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 236 [2021-03-26 04:47:25,171 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-03-26 04:47:25,172 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 04:47:25,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:47:25,172 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:47:25,173 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:47:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:47:25,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1809114803, now seen corresponding path program 1 times [2021-03-26 04:47:25,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:47:25,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383958973] [2021-03-26 04:47:25,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:47:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:47:25,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:47:25,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:47:25,849 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 219 [2021-03-26 04:47:25,851 INFO L142 QuantifierPusher]: treesize reduction 12670, result has 15.4 percent of original size [2021-03-26 04:47:25,869 INFO L147 QuantifierPusher]: treesize reduction 576, result has 75.1 percent of original size 1735 [2021-03-26 04:47:26,373 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 49 [2021-03-26 04:47:26,402 INFO L142 QuantifierPusher]: treesize reduction 2869, result has 20.9 percent of original size [2021-03-26 04:47:26,411 INFO L147 QuantifierPusher]: treesize reduction 125, result has 83.5 percent of original size 632 [2021-03-26 04:47:26,917 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-03-26 04:47:26,926 INFO L142 QuantifierPusher]: treesize reduction 83, result has 43.5 percent of original size [2021-03-26 04:47:26,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:47:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:47:26,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383958973] [2021-03-26 04:47:26,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:47:26,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:47:26,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909989946] [2021-03-26 04:47:26,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:47:26,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:47:27,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:47:27,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:47:27,007 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 04:47:27,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 10 transitions, 38 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:27,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:47:27,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 04:47:27,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:47:27,187 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-03-26 04:47:27,390 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-03-26 04:47:27,409 INFO L129 PetriNetUnfolder]: 3/29 cut-off events. [2021-03-26 04:47:27,409 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-26 04:47:27,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 29 events. 3/29 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 1 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 42. Up to 7 conditions per place. [2021-03-26 04:47:27,412 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 2 changer transitions 1/14 dead transitions. [2021-03-26 04:47:27,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 14 transitions, 62 flow [2021-03-26 04:47:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:47:27,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:47:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-03-26 04:47:27,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-03-26 04:47:27,432 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-03-26 04:47:27,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-03-26 04:47:27,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:47:27,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-03-26 04:47:27,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:27,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:27,457 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:27,458 INFO L185 Difference]: Start difference. First operand has 20 places, 10 transitions, 38 flow. Second operand 5 states and 79 transitions. [2021-03-26 04:47:27,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 14 transitions, 62 flow [2021-03-26 04:47:27,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 50 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 04:47:27,464 INFO L241 Difference]: Finished difference. Result has 21 places, 11 transitions, 41 flow [2021-03-26 04:47:27,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=41, PETRI_PLACES=21, PETRI_TRANSITIONS=11} [2021-03-26 04:47:27,466 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2021-03-26 04:47:27,466 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:47:27,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 11 transitions, 41 flow [2021-03-26 04:47:27,467 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 11 transitions, 41 flow [2021-03-26 04:47:27,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 11 transitions, 41 flow [2021-03-26 04:47:27,473 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 04:47:27,474 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2021-03-26 04:47:27,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 19 events. 0/19 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 04:47:27,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 04:47:27,476 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:47:27,476 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:47:27,476 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 04:47:27,478 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 41 flow [2021-03-26 04:47:27,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:27,479 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:47:27,480 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:47:27,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 04:47:27,480 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:47:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:47:27,482 INFO L82 PathProgramCache]: Analyzing trace with hash 840283623, now seen corresponding path program 2 times [2021-03-26 04:47:27,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:47:27,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268345081] [2021-03-26 04:47:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:47:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:47:27,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:47:27,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:47:27,856 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 222 [2021-03-26 04:47:27,858 INFO L142 QuantifierPusher]: treesize reduction 18188, result has 20.5 percent of original size [2021-03-26 04:47:27,902 INFO L147 QuantifierPusher]: treesize reduction 1812, result has 61.4 percent of original size 2886 [2021-03-26 04:47:28,394 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 44 [2021-03-26 04:47:28,456 INFO L142 QuantifierPusher]: treesize reduction 16935, result has 4.6 percent of original size [2021-03-26 04:47:28,481 INFO L147 QuantifierPusher]: treesize reduction 113, result has 86.3 percent of original size 712 [2021-03-26 04:47:28,840 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 69 [2021-03-26 04:47:28,856 INFO L142 QuantifierPusher]: treesize reduction 558, result has 27.2 percent of original size [2021-03-26 04:47:28,857 INFO L147 QuantifierPusher]: treesize reduction 134, result has 35.6 percent of original size 74 [2021-03-26 04:47:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:47:28,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268345081] [2021-03-26 04:47:28,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:47:28,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:47:28,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637408232] [2021-03-26 04:47:28,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:47:28,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:47:28,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:47:28,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:47:28,942 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 04:47:28,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 41 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:28,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:47:28,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 04:47:28,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:47:29,070 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-03-26 04:47:29,209 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-26 04:47:29,240 INFO L129 PetriNetUnfolder]: 2/29 cut-off events. [2021-03-26 04:47:29,240 INFO L130 PetriNetUnfolder]: For 24/26 co-relation queries the response was YES. [2021-03-26 04:47:29,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 29 events. 2/29 cut-off events. For 24/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 58. Up to 7 conditions per place. [2021-03-26 04:47:29,241 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 2 changer transitions 3/16 dead transitions. [2021-03-26 04:47:29,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 16 transitions, 85 flow [2021-03-26 04:47:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:47:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:47:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-03-26 04:47:29,243 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-03-26 04:47:29,243 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-03-26 04:47:29,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-03-26 04:47:29,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:47:29,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-03-26 04:47:29,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:29,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:29,245 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:29,245 INFO L185 Difference]: Start difference. First operand has 20 places, 11 transitions, 41 flow. Second operand 5 states and 79 transitions. [2021-03-26 04:47:29,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 16 transitions, 85 flow [2021-03-26 04:47:29,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 78 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 04:47:29,247 INFO L241 Difference]: Finished difference. Result has 25 places, 11 transitions, 51 flow [2021-03-26 04:47:29,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=11} [2021-03-26 04:47:29,248 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 5 predicate places. [2021-03-26 04:47:29,248 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:47:29,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 11 transitions, 51 flow [2021-03-26 04:47:29,248 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 11 transitions, 51 flow [2021-03-26 04:47:29,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 11 transitions, 51 flow [2021-03-26 04:47:29,252 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 04:47:29,253 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-03-26 04:47:29,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 17 events. 0/17 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 24 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 04:47:29,253 INFO L142 LiptonReduction]: Number of co-enabled transitions 14 [2021-03-26 04:47:29,254 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:47:29,254 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:47:29,254 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 04:47:29,255 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 11 transitions, 51 flow [2021-03-26 04:47:29,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:29,255 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:47:29,255 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:47:29,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 04:47:29,256 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:47:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:47:29,256 INFO L82 PathProgramCache]: Analyzing trace with hash -31273989, now seen corresponding path program 3 times [2021-03-26 04:47:29,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:47:29,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516603260] [2021-03-26 04:47:29,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:47:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:47:29,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:47:29,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:47:29,404 INFO L142 QuantifierPusher]: treesize reduction 1571, result has 13.7 percent of original size [2021-03-26 04:47:29,406 INFO L147 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size 244 [2021-03-26 04:47:29,565 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 50 [2021-03-26 04:47:29,585 INFO L142 QuantifierPusher]: treesize reduction 2459, result has 22.0 percent of original size [2021-03-26 04:47:29,590 INFO L147 QuantifierPusher]: treesize reduction 122, result has 82.4 percent of original size 572 [2021-03-26 04:47:29,959 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-03-26 04:47:29,962 INFO L142 QuantifierPusher]: treesize reduction 226, result has 27.8 percent of original size [2021-03-26 04:47:29,968 INFO L147 QuantifierPusher]: treesize reduction 4, result has 95.4 percent of original size 83 [2021-03-26 04:47:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:47:30,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516603260] [2021-03-26 04:47:30,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:47:30,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:47:30,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005234236] [2021-03-26 04:47:30,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:47:30,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:47:30,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:47:30,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:47:30,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 04:47:30,021 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 11 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:30,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:47:30,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 04:47:30,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:47:30,202 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-03-26 04:47:30,364 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-03-26 04:47:30,374 INFO L129 PetriNetUnfolder]: 1/23 cut-off events. [2021-03-26 04:47:30,374 INFO L130 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2021-03-26 04:47:30,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 23 events. 1/23 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 1 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 56. Up to 5 conditions per place. [2021-03-26 04:47:30,375 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 3 changer transitions 1/15 dead transitions. [2021-03-26 04:47:30,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 15 transitions, 93 flow [2021-03-26 04:47:30,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:47:30,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:47:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-03-26 04:47:30,376 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-03-26 04:47:30,376 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-03-26 04:47:30,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-03-26 04:47:30,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:47:30,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-03-26 04:47:30,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:30,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:30,378 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:30,378 INFO L185 Difference]: Start difference. First operand has 24 places, 11 transitions, 51 flow. Second operand 5 states and 79 transitions. [2021-03-26 04:47:30,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 15 transitions, 93 flow [2021-03-26 04:47:30,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 74 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-26 04:47:30,380 INFO L241 Difference]: Finished difference. Result has 27 places, 12 transitions, 62 flow [2021-03-26 04:47:30,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=62, PETRI_PLACES=27, PETRI_TRANSITIONS=12} [2021-03-26 04:47:30,381 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 7 predicate places. [2021-03-26 04:47:30,381 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:47:30,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 12 transitions, 62 flow [2021-03-26 04:47:30,381 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 12 transitions, 62 flow [2021-03-26 04:47:30,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 12 transitions, 62 flow [2021-03-26 04:47:30,386 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 04:47:30,386 INFO L130 PetriNetUnfolder]: For 23/24 co-relation queries the response was YES. [2021-03-26 04:47:30,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 19 events. 0/19 cut-off events. For 23/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 04:47:30,386 INFO L142 LiptonReduction]: Number of co-enabled transitions 14 [2021-03-26 04:47:30,387 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:47:30,387 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:47:30,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 04:47:30,388 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 12 transitions, 62 flow [2021-03-26 04:47:30,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:30,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:47:30,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:47:30,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 04:47:30,389 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:47:30,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:47:30,389 INFO L82 PathProgramCache]: Analyzing trace with hash -15909717, now seen corresponding path program 4 times [2021-03-26 04:47:30,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:47:30,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913941405] [2021-03-26 04:47:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:47:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:47:30,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:47:30,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:47:30,540 INFO L142 QuantifierPusher]: treesize reduction 8924, result has 2.1 percent of original size [2021-03-26 04:47:30,542 INFO L147 QuantifierPusher]: treesize reduction 71, result has 62.0 percent of original size 116 [2021-03-26 04:47:30,673 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2021-03-26 04:47:30,737 INFO L142 QuantifierPusher]: treesize reduction 11452, result has 8.5 percent of original size [2021-03-26 04:47:30,742 INFO L147 QuantifierPusher]: treesize reduction 263, result has 75.4 percent of original size 806 [2021-03-26 04:47:31,065 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-03-26 04:47:31,071 INFO L142 QuantifierPusher]: treesize reduction 105, result has 46.7 percent of original size [2021-03-26 04:47:31,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 04:47:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:47:31,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913941405] [2021-03-26 04:47:31,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:47:31,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:47:31,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304706450] [2021-03-26 04:47:31,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:47:31,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:47:31,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:47:31,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:47:31,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 04:47:31,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 12 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:31,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:47:31,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 04:47:31,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:47:31,331 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2021-03-26 04:47:31,577 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2021-03-26 04:47:31,586 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-03-26 04:47:31,586 INFO L130 PetriNetUnfolder]: For 34/37 co-relation queries the response was YES. [2021-03-26 04:47:31,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 20 events. 1/20 cut-off events. For 34/37 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 1 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 55. Up to 5 conditions per place. [2021-03-26 04:47:31,587 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 3 selfloop transitions, 1 changer transitions 4/14 dead transitions. [2021-03-26 04:47:31,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 14 transitions, 92 flow [2021-03-26 04:47:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:47:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:47:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-03-26 04:47:31,588 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6782608695652174 [2021-03-26 04:47:31,588 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-03-26 04:47:31,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-03-26 04:47:31,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:47:31,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-03-26 04:47:31,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:31,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:31,589 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:31,590 INFO L185 Difference]: Start difference. First operand has 26 places, 12 transitions, 62 flow. Second operand 5 states and 78 transitions. [2021-03-26 04:47:31,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 14 transitions, 92 flow [2021-03-26 04:47:31,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 14 transitions, 88 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 04:47:31,592 INFO L241 Difference]: Finished difference. Result has 30 places, 10 transitions, 49 flow [2021-03-26 04:47:31,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=49, PETRI_PLACES=30, PETRI_TRANSITIONS=10} [2021-03-26 04:47:31,592 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 10 predicate places. [2021-03-26 04:47:31,593 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:47:31,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 10 transitions, 49 flow [2021-03-26 04:47:31,593 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 10 transitions, 49 flow [2021-03-26 04:47:31,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 10 transitions, 49 flow [2021-03-26 04:47:31,595 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 04:47:31,595 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-03-26 04:47:31,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 10 events. 0/10 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 04:47:31,595 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 04:47:31,597 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:47:31,597 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:47:31,597 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-26 04:47:31,602 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 10 transitions, 49 flow [2021-03-26 04:47:31,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:31,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:47:31,602 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:47:31,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 04:47:31,603 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:47:31,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:47:31,603 INFO L82 PathProgramCache]: Analyzing trace with hash 815259183, now seen corresponding path program 5 times [2021-03-26 04:47:31,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:47:31,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742527865] [2021-03-26 04:47:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:47:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:47:31,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:47:31,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:47:31,778 INFO L142 QuantifierPusher]: treesize reduction 19423, result has 17.1 percent of original size [2021-03-26 04:47:31,799 INFO L147 QuantifierPusher]: treesize reduction 828, result has 79.3 percent of original size 3166 [2021-03-26 04:47:32,241 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 64 [2021-03-26 04:47:32,251 INFO L142 QuantifierPusher]: treesize reduction 1106, result has 42.2 percent of original size [2021-03-26 04:47:32,256 INFO L147 QuantifierPusher]: treesize reduction 193, result has 76.1 percent of original size 616 [2021-03-26 04:47:32,514 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-03-26 04:47:32,519 INFO L142 QuantifierPusher]: treesize reduction 230, result has 36.3 percent of original size [2021-03-26 04:47:32,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 04:47:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:47:32,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742527865] [2021-03-26 04:47:32,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:47:32,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:47:32,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49315717] [2021-03-26 04:47:32,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:47:32,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:47:32,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:47:32,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:47:32,601 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 04:47:32,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 10 transitions, 49 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:32,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:47:32,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 04:47:32,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:47:32,883 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2021-03-26 04:47:33,260 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2021-03-26 04:47:33,277 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 04:47:33,277 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-26 04:47:33,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 16 events. 0/16 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 04:47:33,277 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 3 selfloop transitions, 1 changer transitions 2/12 dead transitions. [2021-03-26 04:47:33,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 12 transitions, 80 flow [2021-03-26 04:47:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:47:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:47:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2021-03-26 04:47:33,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6695652173913044 [2021-03-26 04:47:33,279 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 77 transitions. [2021-03-26 04:47:33,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 77 transitions. [2021-03-26 04:47:33,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:47:33,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 77 transitions. [2021-03-26 04:47:33,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:33,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:33,280 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:33,280 INFO L185 Difference]: Start difference. First operand has 27 places, 10 transitions, 49 flow. Second operand 5 states and 77 transitions. [2021-03-26 04:47:33,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 12 transitions, 80 flow [2021-03-26 04:47:33,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 12 transitions, 47 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-26 04:47:33,282 INFO L241 Difference]: Finished difference. Result has 23 places, 10 transitions, 35 flow [2021-03-26 04:47:33,282 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=35, PETRI_PLACES=23, PETRI_TRANSITIONS=10} [2021-03-26 04:47:33,282 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2021-03-26 04:47:33,282 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:47:33,282 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 10 transitions, 35 flow [2021-03-26 04:47:33,282 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 10 transitions, 35 flow [2021-03-26 04:47:33,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 10 transitions, 35 flow [2021-03-26 04:47:33,285 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 04:47:33,285 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 04:47:33,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 11 events. 0/11 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 04:47:33,286 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 04:47:33,286 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:47:33,286 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:47:33,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-26 04:47:33,287 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 10 transitions, 35 flow [2021-03-26 04:47:33,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:33,287 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:47:33,287 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:47:33,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 04:47:33,287 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:47:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:47:33,288 INFO L82 PathProgramCache]: Analyzing trace with hash -902489877, now seen corresponding path program 6 times [2021-03-26 04:47:33,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:47:33,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328629633] [2021-03-26 04:47:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:47:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:47:33,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:47:33,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:47:33,501 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 276 [2021-03-26 04:47:33,502 INFO L142 QuantifierPusher]: treesize reduction 40311, result has 14.2 percent of original size [2021-03-26 04:47:33,532 INFO L147 QuantifierPusher]: treesize reduction 1800, result has 73.0 percent of original size 4862 [2021-03-26 04:47:34,053 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 59 [2021-03-26 04:47:34,062 INFO L142 QuantifierPusher]: treesize reduction 1108, result has 41.5 percent of original size [2021-03-26 04:47:34,067 INFO L147 QuantifierPusher]: treesize reduction 218, result has 72.3 percent of original size 569 [2021-03-26 04:47:34,350 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2021-03-26 04:47:34,353 INFO L142 QuantifierPusher]: treesize reduction 230, result has 36.3 percent of original size [2021-03-26 04:47:34,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 04:47:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:47:34,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328629633] [2021-03-26 04:47:34,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:47:34,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:47:34,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053210228] [2021-03-26 04:47:34,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:47:34,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:47:34,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:47:34,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:47:34,418 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 04:47:34,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 10 transitions, 35 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:34,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:47:34,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 04:47:34,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:47:34,586 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-26 04:47:34,761 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-03-26 04:47:34,763 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 04:47:34,763 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-26 04:47:34,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 10 events. 0/10 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 04:47:34,763 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-03-26 04:47:34,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 10 transitions, 44 flow [2021-03-26 04:47:34,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:47:34,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:47:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2021-03-26 04:47:34,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2021-03-26 04:47:34,764 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 75 transitions. [2021-03-26 04:47:34,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 75 transitions. [2021-03-26 04:47:34,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:47:34,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 75 transitions. [2021-03-26 04:47:34,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:34,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:34,766 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:34,766 INFO L185 Difference]: Start difference. First operand has 21 places, 10 transitions, 35 flow. Second operand 5 states and 75 transitions. [2021-03-26 04:47:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 10 transitions, 44 flow [2021-03-26 04:47:34,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 10 transitions, 40 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 04:47:34,767 INFO L241 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2021-03-26 04:47:34,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2021-03-26 04:47:34,767 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2021-03-26 04:47:34,767 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:47:34,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 0 transitions, 0 flow [2021-03-26 04:47:34,767 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 0 transitions, 0 flow [2021-03-26 04:47:34,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 04:47:34,768 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 04:47:34,768 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 04:47:34,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 04:47:34,768 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 04:47:34,768 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:47:34,768 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:47:34,768 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 04:47:34,768 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 04:47:34,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:47:34,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 04:47:34,772 INFO L202 PluginConnector]: Adding new model collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 04:47:34 BasicIcfg [2021-03-26 04:47:34,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 04:47:34,773 INFO L168 Benchmark]: Toolchain (without parser) took 10358.24 ms. Allocated memory was 255.9 MB in the beginning and 654.3 MB in the end (delta: 398.5 MB). Free memory was 236.2 MB in the beginning and 580.5 MB in the end (delta: -344.2 MB). Peak memory consumption was 56.0 MB. Max. memory is 16.0 GB. [2021-03-26 04:47:34,773 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory was 237.4 MB in the beginning and 237.3 MB in the end (delta: 92.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 04:47:34,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.91 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 04:47:34,774 INFO L168 Benchmark]: Boogie Preprocessor took 16.72 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 901.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 04:47:34,774 INFO L168 Benchmark]: RCFGBuilder took 315.61 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 233.4 MB in the end (delta: 346.9 kB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. [2021-03-26 04:47:34,774 INFO L168 Benchmark]: TraceAbstraction took 10000.07 ms. Allocated memory was 255.9 MB in the beginning and 654.3 MB in the end (delta: 398.5 MB). Free memory was 232.9 MB in the beginning and 580.5 MB in the end (delta: -347.6 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.0 GB. [2021-03-26 04:47:34,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory was 237.4 MB in the beginning and 237.3 MB in the end (delta: 92.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.91 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.72 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 901.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 315.61 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 233.4 MB in the end (delta: 346.9 kB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10000.07 ms. Allocated memory was 255.9 MB in the beginning and 654.3 MB in the end (delta: 398.5 MB). Free memory was 232.9 MB in the beginning and 580.5 MB in the end (delta: -347.6 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 213.0ms, 24 PlacesBefore, 20 PlacesAfterwards, 14 TransitionsBefore, 10 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2ms, 21 PlacesBefore, 20 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6ms, 25 PlacesBefore, 24 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 14 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1ms, 27 PlacesBefore, 26 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 14 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8ms, 30 PlacesBefore, 27 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7ms, 23 PlacesBefore, 21 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 22 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 68]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 9898.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2639.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 291.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 27 SDslu, 0 SDs, 0 SdLazy, 94 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 166.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6988.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.9ms SsaConstructionTime, 220.3ms SatisfiabilityAnalysisTime, 6543.6ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 4242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...