/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 14:44:02,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 14:44:02,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 14:44:02,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 14:44:02,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 14:44:02,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 14:44:02,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 14:44:02,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 14:44:02,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 14:44:02,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 14:44:02,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 14:44:02,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 14:44:02,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 14:44:02,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 14:44:02,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 14:44:02,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 14:44:02,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 14:44:02,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 14:44:02,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 14:44:02,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 14:44:02,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 14:44:02,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 14:44:02,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 14:44:02,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 14:44:02,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 14:44:02,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 14:44:02,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 14:44:02,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 14:44:02,240 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 14:44:02,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 14:44:02,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 14:44:02,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 14:44:02,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 14:44:02,277 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 14:44:02,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 14:44:02,277 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 14:44:02,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 14:44:02,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 14:44:02,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 14:44:02,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 14:44:02,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 14:44:02,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 14:44:02,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 14:44:02,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 14:44:02,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 14:44:02,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 14:44:02,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 14:44:02,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 14:44:02,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 14:44:02,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 14:44:02,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 14:44:02,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 14:44:02,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 14:44:02,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 14:44:02,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 14:44:02,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 14:44:02,280 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 14:44:02,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 14:44:02,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 14:44:02,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 14:44:02,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 14:44:02,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 14:44:02,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 14:44:02,579 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 14:44:02,580 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 14:44:02,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl [2021-03-26 14:44:02,582 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl' [2021-03-26 14:44:02,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 14:44:02,616 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 14:44:02,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 14:44:02,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 14:44:02,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 14:44:02,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 14:44:02,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 14:44:02,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 14:44:02,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 14:44:02,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/1) ... [2021-03-26 14:44:02,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 14:44:02,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 14:44:02,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 14:44:02,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 14:44:02,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (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 14:44:02,723 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 14:44:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 14:44:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 14:44:02,724 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 14:44:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 14:44:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 14:44:02,724 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 14:44:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 14:44:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 14:44:02,725 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 14:44:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 14:44:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 14:44:02,726 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 14:44:02,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 14:44:02,914 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 14:44:02,916 INFO L202 PluginConnector]: Adding new model node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 02:44:02 BoogieIcfgContainer [2021-03-26 14:44:02,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 14:44:02,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 14:44:02,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 14:44:02,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 14:44:02,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 02:44:02" (1/2) ... [2021-03-26 14:44:02,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c30f1a and model type node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 02:44:02, skipping insertion in model container [2021-03-26 14:44:02,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 02:44:02" (2/2) ... [2021-03-26 14:44:02,921 INFO L111 eAbstractionObserver]: Analyzing ICFG node-subst.wvr.bpl [2021-03-26 14:44:02,926 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 14:44:02,929 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 14:44:02,929 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 14:44:02,955 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-26 14:44:02,971 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 14:44:03,017 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 14:44:03,017 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 14:44:03,017 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 14:44:03,018 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 14:44:03,018 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 14:44:03,018 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 14:44:03,018 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 14:44:03,018 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 14:44:03,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-03-26 14:44:03,050 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 14:44:03,050 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 14:44:03,052 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 14:44:03,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 62 flow [2021-03-26 14:44:03,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 14 transitions, 46 flow [2021-03-26 14:44:03,057 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:44:03,079 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 14 transitions, 46 flow [2021-03-26 14:44:03,081 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 14 transitions, 46 flow [2021-03-26 14:44:03,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 14 transitions, 46 flow [2021-03-26 14:44:03,090 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-26 14:44:03,090 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 14:44:03,090 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 11 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 14:44:03,092 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 14:44:03,314 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-26 14:44:03,315 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 14:44:03,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 260 [2021-03-26 14:44:03,326 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-03-26 14:44:03,326 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 14:44:03,326 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:44:03,327 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:44:03,327 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:44:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:44:03,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1174649455, now seen corresponding path program 1 times [2021-03-26 14:44:03,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:44:03,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437282144] [2021-03-26 14:44:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:44:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:44:03,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:44:03,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:44:03,676 INFO L142 QuantifierPusher]: treesize reduction 220, result has 46.2 percent of original size [2021-03-26 14:44:03,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-03-26 14:44:03,796 INFO L142 QuantifierPusher]: treesize reduction 376, result has 39.5 percent of original size [2021-03-26 14:44:03,807 INFO L147 QuantifierPusher]: treesize reduction 9, result has 96.3 percent of original size 237 [2021-03-26 14:44:03,979 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2021-03-26 14:44:04,006 INFO L142 QuantifierPusher]: treesize reduction 149, result has 47.3 percent of original size [2021-03-26 14:44:04,012 INFO L147 QuantifierPusher]: treesize reduction 46, result has 65.7 percent of original size 88 [2021-03-26 14:44:04,166 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2021-03-26 14:44:04,168 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 14:44:04,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437282144] [2021-03-26 14:44:04,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:44:04,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:44:04,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945348258] [2021-03-26 14:44:04,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:44:04,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:44:04,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:44:04,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:44:04,193 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 14:44:04,197 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 14:44:04,198 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:44:04,198 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 14:44:04,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:44:04,423 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-26 14:44:04,434 INFO L129 PetriNetUnfolder]: 3/27 cut-off events. [2021-03-26 14:44:04,434 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-26 14:44:04,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 27 events. 3/27 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 65 event pairs, 1 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 38. Up to 7 conditions per place. [2021-03-26 14:44:04,436 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 2 changer transitions 1/14 dead transitions. [2021-03-26 14:44:04,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 14 transitions, 62 flow [2021-03-26 14:44:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:44:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:44:04,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-03-26 14:44:04,446 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-03-26 14:44:04,446 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-03-26 14:44:04,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-03-26 14:44:04,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:44:04,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-03-26 14:44:04,452 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 14:44:04,459 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 14:44:04,460 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 14:44:04,484 INFO L185 Difference]: Start difference. First operand has 20 places, 10 transitions, 38 flow. Second operand 5 states and 79 transitions. [2021-03-26 14:44:04,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 14 transitions, 62 flow [2021-03-26 14:44:04,499 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 14:44:04,500 INFO L241 Difference]: Finished difference. Result has 21 places, 11 transitions, 41 flow [2021-03-26 14:44:04,501 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 14:44:04,502 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2021-03-26 14:44:04,502 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:44:04,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 11 transitions, 41 flow [2021-03-26 14:44:04,503 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 11 transitions, 41 flow [2021-03-26 14:44:04,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 11 transitions, 41 flow [2021-03-26 14:44:04,507 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 14:44:04,507 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 14:44:04,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 16 events. 0/16 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 14:44:04,507 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 14:44:04,510 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:44:04,510 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:44:04,510 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 14:44:04,512 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 41 flow [2021-03-26 14:44:04,513 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 14:44:04,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:44:04,514 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:44:04,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 14:44:04,515 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:44:04,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:44:04,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1445140561, now seen corresponding path program 2 times [2021-03-26 14:44:04,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:44:04,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071297546] [2021-03-26 14:44:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:44:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:44:04,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:44:04,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:44:04,711 INFO L142 QuantifierPusher]: treesize reduction 331, result has 41.7 percent of original size [2021-03-26 14:44:04,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-03-26 14:44:04,842 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2021-03-26 14:44:04,863 INFO L142 QuantifierPusher]: treesize reduction 863, result has 42.4 percent of original size [2021-03-26 14:44:04,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 635 [2021-03-26 14:44:05,087 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2021-03-26 14:44:05,111 INFO L142 QuantifierPusher]: treesize reduction 764, result has 26.0 percent of original size [2021-03-26 14:44:05,129 INFO L147 QuantifierPusher]: treesize reduction 45, result has 83.3 percent of original size 224 [2021-03-26 14:44:05,320 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2021-03-26 14:44:05,322 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 14:44:05,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071297546] [2021-03-26 14:44:05,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:44:05,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:44:05,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494607191] [2021-03-26 14:44:05,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:44:05,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:44:05,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:44:05,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:44:05,338 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 14:44:05,339 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 14:44:05,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:44:05,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 14:44:05,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:44:05,466 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-03-26 14:44:05,642 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-03-26 14:44:05,658 INFO L129 PetriNetUnfolder]: 1/31 cut-off events. [2021-03-26 14:44:05,659 INFO L130 PetriNetUnfolder]: For 25/28 co-relation queries the response was YES. [2021-03-26 14:44:05,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 31 events. 1/31 cut-off events. For 25/28 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 102 event pairs, 1 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2021-03-26 14:44:05,659 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 3 changer transitions 1/15 dead transitions. [2021-03-26 14:44:05,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 15 transitions, 77 flow [2021-03-26 14:44:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:44:05,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:44:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-03-26 14:44:05,663 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-03-26 14:44:05,663 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-03-26 14:44:05,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-03-26 14:44:05,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:44:05,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-03-26 14:44:05,667 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 14:44:05,668 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 14:44:05,669 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 14:44:05,669 INFO L185 Difference]: Start difference. First operand has 20 places, 11 transitions, 41 flow. Second operand 5 states and 79 transitions. [2021-03-26 14:44:05,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 15 transitions, 77 flow [2021-03-26 14:44:05,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 70 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 14:44:05,672 INFO L241 Difference]: Finished difference. Result has 25 places, 12 transitions, 58 flow [2021-03-26 14:44:05,673 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=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=25, PETRI_TRANSITIONS=12} [2021-03-26 14:44:05,673 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 5 predicate places. [2021-03-26 14:44:05,673 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:44:05,674 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 12 transitions, 58 flow [2021-03-26 14:44:05,674 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 12 transitions, 58 flow [2021-03-26 14:44:05,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 12 transitions, 58 flow [2021-03-26 14:44:05,686 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-26 14:44:05,686 INFO L130 PetriNetUnfolder]: For 30/32 co-relation queries the response was YES. [2021-03-26 14:44:05,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 26 events. 0/26 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 67 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 14:44:05,687 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 14:44:05,687 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:44:05,688 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:44:05,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 14:44:05,689 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 58 flow [2021-03-26 14:44:05,689 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 14:44:05,689 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:44:05,689 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:44:05,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 14:44:05,689 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:44:05,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:44:05,690 INFO L82 PathProgramCache]: Analyzing trace with hash 328116283, now seen corresponding path program 3 times [2021-03-26 14:44:05,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:44:05,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396879993] [2021-03-26 14:44:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:44:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:44:05,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:44:05,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:44:05,780 INFO L142 QuantifierPusher]: treesize reduction 2488, result has 9.2 percent of original size [2021-03-26 14:44:05,782 INFO L147 QuantifierPusher]: treesize reduction 82, result has 67.3 percent of original size 169 [2021-03-26 14:44:05,872 INFO L142 QuantifierPusher]: treesize reduction 1925, result has 17.1 percent of original size [2021-03-26 14:44:05,875 INFO L147 QuantifierPusher]: treesize reduction 108, result has 72.7 percent of original size 288 [2021-03-26 14:44:05,988 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-03-26 14:44:06,004 INFO L142 QuantifierPusher]: treesize reduction 1099, result has 23.3 percent of original size [2021-03-26 14:44:06,008 INFO L147 QuantifierPusher]: treesize reduction 179, result has 46.4 percent of original size 155 [2021-03-26 14:44:06,128 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 21 [2021-03-26 14:44:06,129 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 14:44:06,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396879993] [2021-03-26 14:44:06,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:44:06,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:44:06,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986986939] [2021-03-26 14:44:06,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:44:06,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:44:06,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:44:06,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:44:06,134 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 14:44:06,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 12 transitions, 58 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 14:44:06,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:44:06,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 14:44:06,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:44:06,286 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2021-03-26 14:44:06,286 INFO L130 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2021-03-26 14:44:06,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 28 events. 1/28 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 82 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 69. Up to 6 conditions per place. [2021-03-26 14:44:06,286 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 3 changer transitions 3/17 dead transitions. [2021-03-26 14:44:06,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 112 flow [2021-03-26 14:44:06,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:44:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:44:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-03-26 14:44:06,290 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-03-26 14:44:06,291 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-03-26 14:44:06,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-03-26 14:44:06,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:44:06,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-03-26 14:44:06,292 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 14:44:06,292 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 14:44:06,293 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 14:44:06,293 INFO L185 Difference]: Start difference. First operand has 24 places, 12 transitions, 58 flow. Second operand 5 states and 79 transitions. [2021-03-26 14:44:06,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 112 flow [2021-03-26 14:44:06,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 102 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 14:44:06,297 INFO L241 Difference]: Finished difference. Result has 29 places, 12 transitions, 68 flow [2021-03-26 14:44:06,298 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=68, PETRI_PLACES=29, PETRI_TRANSITIONS=12} [2021-03-26 14:44:06,298 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 9 predicate places. [2021-03-26 14:44:06,298 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:44:06,298 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 12 transitions, 68 flow [2021-03-26 14:44:06,300 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 12 transitions, 68 flow [2021-03-26 14:44:06,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 12 transitions, 68 flow [2021-03-26 14:44:06,309 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 14:44:06,309 INFO L130 PetriNetUnfolder]: For 37/39 co-relation queries the response was YES. [2021-03-26 14:44:06,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 20 events. 0/20 cut-off events. For 37/39 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 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 14:44:06,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 14 [2021-03-26 14:44:06,310 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:44:06,310 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:44:06,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 14:44:06,312 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 12 transitions, 68 flow [2021-03-26 14:44:06,312 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 14:44:06,312 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:44:06,312 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:44:06,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 14:44:06,312 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:44:06,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:44:06,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1202355085, now seen corresponding path program 4 times [2021-03-26 14:44:06,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:44:06,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119078946] [2021-03-26 14:44:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:44:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:44:06,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:44:06,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:44:06,426 INFO L142 QuantifierPusher]: treesize reduction 631, result has 22.7 percent of original size [2021-03-26 14:44:06,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-26 14:44:06,515 INFO L142 QuantifierPusher]: treesize reduction 344, result has 42.3 percent of original size [2021-03-26 14:44:06,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-03-26 14:44:06,618 INFO L142 QuantifierPusher]: treesize reduction 353, result has 26.5 percent of original size [2021-03-26 14:44:06,620 INFO L147 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 124 [2021-03-26 14:44:06,718 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 14:44:06,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119078946] [2021-03-26 14:44:06,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:44:06,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:44:06,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358832795] [2021-03-26 14:44:06,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:44:06,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:44:06,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:44:06,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:44:06,720 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 14:44:06,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 12 transitions, 68 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 14:44:06,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:44:06,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 14:44:06,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:44:06,931 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-26 14:44:06,932 INFO L130 PetriNetUnfolder]: For 70/76 co-relation queries the response was YES. [2021-03-26 14:44:06,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 26 events. 0/26 cut-off events. For 70/76 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 14:44:06,932 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 2 changer transitions 3/16 dead transitions. [2021-03-26 14:44:06,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 16 transitions, 122 flow [2021-03-26 14:44:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:44:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:44:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-03-26 14:44:06,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2021-03-26 14:44:06,940 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-03-26 14:44:06,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-03-26 14:44:06,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:44:06,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-03-26 14:44:06,941 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 14:44:06,942 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 14:44:06,942 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 14:44:06,942 INFO L185 Difference]: Start difference. First operand has 28 places, 12 transitions, 68 flow. Second operand 5 states and 79 transitions. [2021-03-26 14:44:06,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 16 transitions, 122 flow [2021-03-26 14:44:06,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 16 transitions, 104 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-26 14:44:06,945 INFO L241 Difference]: Finished difference. Result has 31 places, 12 transitions, 71 flow [2021-03-26 14:44:06,945 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=71, PETRI_PLACES=31, PETRI_TRANSITIONS=12} [2021-03-26 14:44:06,945 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 11 predicate places. [2021-03-26 14:44:06,945 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:44:06,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 12 transitions, 71 flow [2021-03-26 14:44:06,946 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 12 transitions, 71 flow [2021-03-26 14:44:06,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 12 transitions, 71 flow [2021-03-26 14:44:06,950 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 14:44:06,950 INFO L130 PetriNetUnfolder]: For 35/37 co-relation queries the response was YES. [2021-03-26 14:44:06,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 18 events. 0/18 cut-off events. For 35/37 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 14:44:06,951 INFO L142 LiptonReduction]: Number of co-enabled transitions 10 [2021-03-26 14:44:06,952 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:44:06,952 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:44:06,952 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 14:44:06,953 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 12 transitions, 71 flow [2021-03-26 14:44:06,953 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 14:44:06,953 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:44:06,953 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:44:06,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 14:44:06,954 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:44:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:44:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash 343480555, now seen corresponding path program 5 times [2021-03-26 14:44:06,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:44:06,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498335945] [2021-03-26 14:44:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:44:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:44:07,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:44:07,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:44:07,027 INFO L142 QuantifierPusher]: treesize reduction 1394, result has 9.6 percent of original size [2021-03-26 14:44:07,031 INFO L147 QuantifierPusher]: treesize reduction 22, result has 85.1 percent of original size 126 [2021-03-26 14:44:07,116 INFO L142 QuantifierPusher]: treesize reduction 686, result has 37.4 percent of original size [2021-03-26 14:44:07,121 INFO L147 QuantifierPusher]: treesize reduction 10, result has 97.6 percent of original size 399 [2021-03-26 14:44:07,331 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 46 [2021-03-26 14:44:07,344 INFO L142 QuantifierPusher]: treesize reduction 487, result has 25.6 percent of original size [2021-03-26 14:44:07,346 INFO L147 QuantifierPusher]: treesize reduction 6, result has 96.4 percent of original size 162 [2021-03-26 14:44:07,463 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2021-03-26 14:44:07,472 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 14:44:07,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498335945] [2021-03-26 14:44:07,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:44:07,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:44:07,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971710803] [2021-03-26 14:44:07,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:44:07,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:44:07,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:44:07,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:44:07,474 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 14:44:07,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 12 transitions, 71 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 14:44:07,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:44:07,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 14:44:07,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:44:07,670 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 14:44:07,671 INFO L130 PetriNetUnfolder]: For 56/62 co-relation queries the response was YES. [2021-03-26 14:44:07,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 17 events. 0/17 cut-off events. For 56/62 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 14:44:07,671 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 3 selfloop transitions, 1 changer transitions 3/13 dead transitions. [2021-03-26 14:44:07,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 13 transitions, 94 flow [2021-03-26 14:44:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:44:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:44:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2021-03-26 14:44:07,672 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6695652173913044 [2021-03-26 14:44:07,672 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 77 transitions. [2021-03-26 14:44:07,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 77 transitions. [2021-03-26 14:44:07,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:44:07,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 77 transitions. [2021-03-26 14:44:07,673 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 14:44:07,674 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 14:44:07,674 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 14:44:07,674 INFO L185 Difference]: Start difference. First operand has 30 places, 12 transitions, 71 flow. Second operand 5 states and 77 transitions. [2021-03-26 14:44:07,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 13 transitions, 94 flow [2021-03-26 14:44:07,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 13 transitions, 79 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-26 14:44:07,693 INFO L241 Difference]: Finished difference. Result has 31 places, 10 transitions, 49 flow [2021-03-26 14:44:07,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=31, PETRI_TRANSITIONS=10} [2021-03-26 14:44:07,693 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 11 predicate places. [2021-03-26 14:44:07,693 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:44:07,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 10 transitions, 49 flow [2021-03-26 14:44:07,694 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 10 transitions, 49 flow [2021-03-26 14:44:07,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 10 transitions, 49 flow [2021-03-26 14:44:07,696 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 14:44:07,696 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-03-26 14:44:07,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 11 events. 0/11 cut-off events. For 15/15 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 3 conditions per place. [2021-03-26 14:44:07,697 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 14:44:07,697 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:44:07,697 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:44:07,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 14:44:07,698 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 10 transitions, 49 flow [2021-03-26 14:44:07,698 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 14:44:07,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 14:44:07,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 14:44:07,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 14:44:07,699 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 14:44:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 14:44:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1416840285, now seen corresponding path program 6 times [2021-03-26 14:44:07,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 14:44:07,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274824375] [2021-03-26 14:44:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 14:44:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 14:44:07,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 14:44:07,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 14:44:07,815 INFO L142 QuantifierPusher]: treesize reduction 3710, result has 14.3 percent of original size [2021-03-26 14:44:07,820 INFO L147 QuantifierPusher]: treesize reduction 81, result has 86.9 percent of original size 536 [2021-03-26 14:44:07,961 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2021-03-26 14:44:07,990 INFO L142 QuantifierPusher]: treesize reduction 3717, result has 29.2 percent of original size [2021-03-26 14:44:07,997 INFO L147 QuantifierPusher]: treesize reduction 704, result has 54.1 percent of original size 831 [2021-03-26 14:44:08,465 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 58 [2021-03-26 14:44:08,486 INFO L142 QuantifierPusher]: treesize reduction 1976, result has 22.8 percent of original size [2021-03-26 14:44:08,490 INFO L147 QuantifierPusher]: treesize reduction 383, result has 34.3 percent of original size 200 [2021-03-26 14:44:08,622 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 21 [2021-03-26 14:44:08,623 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 14:44:08,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274824375] [2021-03-26 14:44:08,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 14:44:08,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 14:44:08,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195837360] [2021-03-26 14:44:08,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 14:44:08,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 14:44:08,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 14:44:08,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 14:44:08,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 23 [2021-03-26 14:44:08,625 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 14:44:08,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 14:44:08,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 23 [2021-03-26 14:44:08,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 14:44:08,858 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-26 14:44:08,859 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 14:44:08,860 INFO L130 PetriNetUnfolder]: For 25/27 co-relation queries the response was YES. [2021-03-26 14:44:08,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 10 events. 0/10 cut-off events. For 25/27 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 14:44:08,860 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-03-26 14:44:08,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 10 transitions, 60 flow [2021-03-26 14:44:08,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 14:44:08,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 14:44:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2021-03-26 14:44:08,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2021-03-26 14:44:08,861 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 75 transitions. [2021-03-26 14:44:08,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 75 transitions. [2021-03-26 14:44:08,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 14:44:08,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 75 transitions. [2021-03-26 14:44:08,861 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 14:44:08,862 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 14:44:08,862 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 14:44:08,862 INFO L185 Difference]: Start difference. First operand has 27 places, 10 transitions, 49 flow. Second operand 5 states and 75 transitions. [2021-03-26 14:44:08,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 10 transitions, 60 flow [2021-03-26 14:44:08,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 10 transitions, 40 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-26 14:44:08,863 INFO L241 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2021-03-26 14:44:08,863 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 14:44:08,863 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2021-03-26 14:44:08,863 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 14:44:08,863 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 0 transitions, 0 flow [2021-03-26 14:44:08,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 0 transitions, 0 flow [2021-03-26 14:44:08,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 14:44:08,864 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 14:44:08,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 14:44:08,864 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 14:44:08,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 14:44:08,864 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 14:44:08,864 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 14:44:08,864 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 14:44:08,865 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 14:44:08,865 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 14:44:08,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 14:44:08,868 INFO L202 PluginConnector]: Adding new model node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 02:44:08 BasicIcfg [2021-03-26 14:44:08,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 14:44:08,869 INFO L168 Benchmark]: Toolchain (without parser) took 6252.75 ms. Allocated memory was 255.9 MB in the beginning and 444.6 MB in the end (delta: 188.7 MB). Free memory was 236.1 MB in the beginning and 410.7 MB in the end (delta: -174.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.0 GB. [2021-03-26 14:44:08,869 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 14:44:08,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.82 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 14:44:08,870 INFO L168 Benchmark]: Boogie Preprocessor took 10.69 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.6 MB in the end (delta: 944.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 14:44:08,870 INFO L168 Benchmark]: RCFGBuilder took 260.79 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 234.6 MB in the end (delta: -940.9 kB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-26 14:44:08,871 INFO L168 Benchmark]: TraceAbstraction took 5951.20 ms. Allocated memory was 255.9 MB in the beginning and 444.6 MB in the end (delta: 188.7 MB). Free memory was 233.9 MB in the beginning and 410.7 MB in the end (delta: -176.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.0 GB. [2021-03-26 14:44:08,872 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 0.50 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.82 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.69 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.6 MB in the end (delta: 944.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 260.79 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 234.6 MB in the end (delta: -940.9 kB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5951.20 ms. Allocated memory was 255.9 MB in the beginning and 444.6 MB in the end (delta: 188.7 MB). Free memory was 233.9 MB in the beginning and 410.7 MB in the end (delta: -176.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 233.6ms, 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: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.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: 0, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.6ms, 25 PlacesBefore, 24 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.9ms, 29 PlacesBefore, 28 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0ms, 31 PlacesBefore, 30 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 10 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9ms, 31 PlacesBefore, 27 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 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: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5851.9ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1505.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 303.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 28 SDslu, 0 SDs, 0 SdLazy, 94 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 113.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3783.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=4, 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: 13.3ms SsaConstructionTime, 152.8ms SatisfiabilityAnalysisTime, 3676.6ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2902 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...