/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 05:35:03,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 05:35:03,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 05:35:03,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 05:35:03,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 05:35:03,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 05:35:03,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 05:35:03,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 05:35:03,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 05:35:03,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 05:35:03,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 05:35:03,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 05:35:03,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 05:35:03,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 05:35:03,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 05:35:03,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 05:35:03,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 05:35:03,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 05:35:03,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 05:35:03,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 05:35:03,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 05:35:03,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 05:35:03,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 05:35:03,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 05:35:03,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 05:35:03,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 05:35:03,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 05:35:03,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 05:35:03,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 05:35:03,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 05:35:03,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 05:35:03,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 05:35:03,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 05:35:03,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 05:35:03,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 05:35:03,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 05:35:03,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 05:35:03,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 05:35:03,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 05:35:03,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 05:35:03,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 05:35:03,952 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 05:35:03,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 05:35:03,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 05:35:03,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 05:35:03,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 05:35:03,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 05:35:03,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 05:35:03,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 05:35:03,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 05:35:03,955 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 05:35:03,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 05:35:03,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 05:35:03,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 05:35:03,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 05:35:03,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 05:35:03,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 05:35:03,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 05:35:03,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:35:03,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 05:35:03,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 05:35:03,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 05:35:03,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 05:35:03,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 05:35:03,959 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 05:35:03,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 05:35:03,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 05:35:03,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 05:35:04,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 05:35:04,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 05:35:04,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 05:35:04,480 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 05:35:04,482 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 05:35:04,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl [2021-04-29 05:35:04,484 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl' [2021-04-29 05:35:04,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 05:35:04,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 05:35:04,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 05:35:04,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 05:35:04,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 05:35:04,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 05:35:04,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 05:35:04,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 05:35:04,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 05:35:04,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/1) ... [2021-04-29 05:35:04,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 05:35:04,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 05:35:04,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 05:35:04,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 05:35:04,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (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 [2021-04-29 05:35:04,763 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 05:35:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 05:35:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 05:35:04,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 05:35:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 05:35:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 05:35:04,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 05:35:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 05:35:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 05:35:04,766 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 05:35:04,996 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 05:35:04,997 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 05:35:04,999 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:35:04 BoogieIcfgContainer [2021-04-29 05:35:04,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 05:35:05,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 05:35:05,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 05:35:05,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 05:35:05,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:04" (1/2) ... [2021-04-29 05:35:05,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca7097 and model type bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 05:35:05, skipping insertion in model container [2021-04-29 05:35:05,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:35:04" (2/2) ... [2021-04-29 05:35:05,008 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.bpl [2021-04-29 05:35:05,017 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 05:35:05,023 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 05:35:05,024 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 05:35:05,074 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-04-29 05:35:05,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 05:35:05,135 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 05:35:05,135 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 05:35:05,135 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 05:35:05,135 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 05:35:05,136 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 05:35:05,136 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 05:35:05,136 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 05:35:05,136 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 05:35:05,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 76 flow [2021-04-29 05:35:05,190 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-04-29 05:35:05,190 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:35:05,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 2/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2021-04-29 05:35:05,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 30 transitions, 76 flow [2021-04-29 05:35:05,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 26 transitions, 64 flow [2021-04-29 05:35:05,210 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:05,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 26 transitions, 64 flow [2021-04-29 05:35:05,255 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 26 transitions, 64 flow [2021-04-29 05:35:05,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 64 flow [2021-04-29 05:35:05,291 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-04-29 05:35:05,291 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:35:05,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 2/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2021-04-29 05:35:05,299 INFO L146 LiptonReduction]: Number of co-enabled transitions 124 [2021-04-29 05:35:06,149 INFO L158 LiptonReduction]: Checked pairs total: 653 [2021-04-29 05:35:06,150 INFO L160 LiptonReduction]: Total number of compositions: 18 [2021-04-29 05:35:06,153 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 948 [2021-04-29 05:35:06,169 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2021-04-29 05:35:06,169 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:35:06,170 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:06,170 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:06,171 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:06,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:06,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1290706497, now seen corresponding path program 1 times [2021-04-29 05:35:06,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:06,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205963151] [2021-04-29 05:35:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:06,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:06,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:35:06,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:06,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:06,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205963151] [2021-04-29 05:35:06,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:06,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 05:35:06,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392454052] [2021-04-29 05:35:06,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 05:35:06,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:06,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 05:35:06,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 05:35:06,379 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 48 [2021-04-29 05:35:06,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-04-29 05:35:06,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:06,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 48 [2021-04-29 05:35:06,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:06,432 INFO L129 PetriNetUnfolder]: 1/41 cut-off events. [2021-04-29 05:35:06,432 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-29 05:35:06,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 41 events. 1/41 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 97 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 39. Up to 5 conditions per place. [2021-04-29 05:35:06,434 INFO L132 encePairwiseOnDemand]: 41/48 looper letters, 2 selfloop transitions, 3 changer transitions 9/27 dead transitions. [2021-04-29 05:35:06,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 82 flow [2021-04-29 05:35:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:35:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:35:06,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 195 transitions. [2021-04-29 05:35:06,450 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8125 [2021-04-29 05:35:06,451 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 195 transitions. [2021-04-29 05:35:06,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 195 transitions. [2021-04-29 05:35:06,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:06,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 195 transitions. [2021-04-29 05:35:06,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-04-29 05:35:06,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 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) [2021-04-29 05:35:06,467 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 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) [2021-04-29 05:35:06,470 INFO L185 Difference]: Start difference. First operand has 32 places, 26 transitions, 64 flow. Second operand 5 states and 195 transitions. [2021-04-29 05:35:06,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 82 flow [2021-04-29 05:35:06,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 74 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 05:35:06,476 INFO L241 Difference]: Finished difference. Result has 33 places, 18 transitions, 52 flow [2021-04-29 05:35:06,479 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=52, PETRI_PLACES=33, PETRI_TRANSITIONS=18} [2021-04-29 05:35:06,480 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-04-29 05:35:06,480 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:06,480 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 18 transitions, 52 flow [2021-04-29 05:35:06,481 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 18 transitions, 52 flow [2021-04-29 05:35:06,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 18 transitions, 52 flow [2021-04-29 05:35:06,487 INFO L129 PetriNetUnfolder]: 1/25 cut-off events. [2021-04-29 05:35:06,487 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:35:06,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 25 events. 1/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2021-04-29 05:35:06,488 INFO L146 LiptonReduction]: Number of co-enabled transitions 80 [2021-04-29 05:35:06,558 INFO L158 LiptonReduction]: Checked pairs total: 216 [2021-04-29 05:35:06,558 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 05:35:06,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-04-29 05:35:06,561 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 57 flow [2021-04-29 05:35:06,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-04-29 05:35:06,561 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:06,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:06,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 05:35:06,562 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:06,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:06,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1620753923, now seen corresponding path program 2 times [2021-04-29 05:35:06,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:06,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187030040] [2021-04-29 05:35:06,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:06,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:06,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:06,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:06,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:06,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:06,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:06,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187030040] [2021-04-29 05:35:06,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:06,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:35:06,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084431239] [2021-04-29 05:35:06,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 05:35:06,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:06,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 05:35:06,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 05:35:06,611 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 49 [2021-04-29 05:35:06,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2021-04-29 05:35:06,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:06,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 49 [2021-04-29 05:35:06,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:06,633 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-04-29 05:35:06,633 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-04-29 05:35:06,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 40 events. 3/40 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 127 event pairs, 0 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2021-04-29 05:35:06,634 INFO L132 encePairwiseOnDemand]: 45/49 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2021-04-29 05:35:06,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 71 flow [2021-04-29 05:35:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:35:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:35:06,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 186 transitions. [2021-04-29 05:35:06,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7591836734693878 [2021-04-29 05:35:06,638 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 186 transitions. [2021-04-29 05:35:06,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 186 transitions. [2021-04-29 05:35:06,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:06,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 186 transitions. [2021-04-29 05:35:06,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 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) [2021-04-29 05:35:06,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 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) [2021-04-29 05:35:06,642 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 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) [2021-04-29 05:35:06,643 INFO L185 Difference]: Start difference. First operand has 24 places, 19 transitions, 57 flow. Second operand 5 states and 186 transitions. [2021-04-29 05:35:06,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 71 flow [2021-04-29 05:35:06,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:35:06,644 INFO L241 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2021-04-29 05:35:06,645 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2021-04-29 05:35:06,645 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -7 predicate places. [2021-04-29 05:35:06,646 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:06,646 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 0 transitions, 0 flow [2021-04-29 05:35:06,646 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 0 transitions, 0 flow [2021-04-29 05:35:06,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 05:35:06,647 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 05:35:06,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 05:35:06,647 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. [2021-04-29 05:35:06,647 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 05:35:06,648 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:35:06,648 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:06,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 05:35:06,650 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 05:35:06,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2021-04-29 05:35:06,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 05:35:06,655 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 05:35:06 BasicIcfg [2021-04-29 05:35:06,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 05:35:06,658 INFO L168 Benchmark]: Toolchain (without parser) took 2135.59 ms. Allocated memory was 308.3 MB in the beginning and 371.2 MB in the end (delta: 62.9 MB). Free memory was 277.5 MB in the beginning and 347.3 MB in the end (delta: -69.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:35:06,660 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.36 ms. Allocated memory is still 308.3 MB. Free memory is still 278.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:35:06,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.10 ms. Allocated memory is still 308.3 MB. Free memory was 291.6 MB in the beginning and 290.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 05:35:06,665 INFO L168 Benchmark]: Boogie Preprocessor took 21.96 ms. Allocated memory is still 308.3 MB. Free memory was 290.1 MB in the beginning and 289.3 MB in the end (delta: 797.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:35:06,667 INFO L168 Benchmark]: RCFGBuilder took 349.72 ms. Allocated memory is still 308.3 MB. Free memory was 289.2 MB in the beginning and 283.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-29 05:35:06,668 INFO L168 Benchmark]: TraceAbstraction took 1654.47 ms. Allocated memory was 308.3 MB in the beginning and 371.2 MB in the end (delta: 62.9 MB). Free memory was 283.1 MB in the beginning and 347.3 MB in the end (delta: -64.1 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.0 GB. [2021-04-29 05:35:06,674 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 0.36 ms. Allocated memory is still 308.3 MB. Free memory is still 278.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 36.10 ms. Allocated memory is still 308.3 MB. Free memory was 291.6 MB in the beginning and 290.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.96 ms. Allocated memory is still 308.3 MB. Free memory was 290.1 MB in the beginning and 289.3 MB in the end (delta: 797.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 349.72 ms. Allocated memory is still 308.3 MB. Free memory was 289.2 MB in the beginning and 283.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1654.47 ms. Allocated memory was 308.3 MB in the beginning and 371.2 MB in the end (delta: 62.9 MB). Free memory was 283.1 MB in the beginning and 347.3 MB in the end (delta: -64.1 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 895.0ms, 31 PlacesBefore, 32 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 4 FixpointIterations, 8 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 18 TotalNumberOfCompositions, 653 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 288, positive: 215, positive conditional: 215, positive unconditional: 0, negative: 73, negative conditional: 73, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 126, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 126, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 126, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 223, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 137, negative conditional: 0, negative unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 288, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 52, negative conditional: 52, negative unconditional: 0, unknown: 126, unknown conditional: 126, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 87, Positive conditional cache size: 87, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.0ms, 33 PlacesBefore, 24 PlacesAfterwards, 18 TransitionsBefore, 19 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 216 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 12, positive conditional: 3, positive unconditional: 9, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 12, positive conditional: 3, positive unconditional: 9, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 25, positive conditional: 8, positive unconditional: 17, negative: 25, negative conditional: 6, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 63, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 99, Positive conditional cache size: 99, Positive unconditional cache size: 0, Negative cache size: 23, Negative conditional cache size: 23, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6ms, 25 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 99, Positive conditional cache size: 99, Positive unconditional cache size: 0, Negative cache size: 23, Negative conditional cache size: 23, Negative unconditional cache size: 0 - PositiveResult [Line: 57]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1523.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 142.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1025.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9 SDtfs, 2 SDslu, 4 SDs, 0 SdLazy, 11 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 10, 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: 6.2ms SsaConstructionTime, 33.9ms SatisfiabilityAnalysisTime, 90.5ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...