/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/security.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 19:22:35,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 19:22:35,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 19:22:35,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 19:22:35,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 19:22:35,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 19:22:35,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 19:22:35,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 19:22:35,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 19:22:35,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 19:22:35,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 19:22:35,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 19:22:35,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 19:22:35,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 19:22:35,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 19:22:35,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 19:22:35,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 19:22:35,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 19:22:35,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 19:22:35,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 19:22:35,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 19:22:35,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 19:22:35,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 19:22:35,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 19:22:35,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 19:22:35,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 19:22:35,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 19:22:35,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 19:22:35,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 19:22:35,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 19:22:35,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 19:22:35,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 19:22:35,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 19:22:35,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 19:22:35,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 19:22:35,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 19:22:35,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 19:22:35,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 19:22:35,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 19:22:35,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 19:22:35,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 19:22:35,291 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 [2021-06-11 19:22:35,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 19:22:35,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 19:22:35,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 19:22:35,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 19:22:35,305 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 19:22:35,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 19:22:35,305 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 19:22:35,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 19:22:35,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 19:22:35,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 19:22:35,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 19:22:35,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 19:22:35,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 19:22:35,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 19:22:35,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 19:22:35,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 19:22:35,514 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 19:22:35,516 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 19:22:35,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/security.wvr.bpl [2021-06-11 19:22:35,531 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/security.wvr.bpl' [2021-06-11 19:22:35,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 19:22:35,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 19:22:35,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 19:22:35,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 19:22:35,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 19:22:35,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 19:22:35,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 19:22:35,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 19:22:35,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 19:22:35,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/1) ... [2021-06-11 19:22:35,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 19:22:35,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 19:22:35,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 19:22:35,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 19:22:35,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (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 [2021-06-11 19:22:35,647 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-11 19:22:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 19:22:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 19:22:35,649 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-11 19:22:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 19:22:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 19:22:35,649 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 19:22:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 19:22:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 19:22:35,650 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 19:22:35,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 19:22:35,761 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 19:22:35,762 INFO L202 PluginConnector]: Adding new model security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:22:35 BoogieIcfgContainer [2021-06-11 19:22:35,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 19:22:35,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 19:22:35,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 19:22:35,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 19:22:35,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:22:35" (1/2) ... [2021-06-11 19:22:35,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@882005e and model type security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:22:35, skipping insertion in model container [2021-06-11 19:22:35,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:22:35" (2/2) ... [2021-06-11 19:22:35,766 INFO L111 eAbstractionObserver]: Analyzing ICFG security.wvr.bpl [2021-06-11 19:22:35,770 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 19:22:35,772 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 19:22:35,772 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 19:22:35,792 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-11 19:22:35,803 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 19:22:35,816 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 19:22:35,816 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 19:22:35,817 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 19:22:35,817 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 19:22:35,817 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 19:22:35,817 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 19:22:35,817 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 19:22:35,817 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 19:22:35,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 72 flow [2021-06-11 19:22:35,838 INFO L129 PetriNetUnfolder]: 4/26 cut-off events. [2021-06-11 19:22:35,838 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 19:22:35,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 4/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-06-11 19:22:35,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 28 transitions, 72 flow [2021-06-11 19:22:35,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 24 transitions, 60 flow [2021-06-11 19:22:35,850 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:22:35,859 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 24 transitions, 60 flow [2021-06-11 19:22:35,878 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 24 transitions, 60 flow [2021-06-11 19:22:35,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 60 flow [2021-06-11 19:22:35,886 INFO L129 PetriNetUnfolder]: 4/24 cut-off events. [2021-06-11 19:22:35,886 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 19:22:35,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 24 events. 4/24 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 34 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-06-11 19:22:35,888 INFO L151 LiptonReduction]: Number of co-enabled transitions 198 [2021-06-11 19:22:36,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,564 INFO L163 LiptonReduction]: Checked pairs total: 127 [2021-06-11 19:22:36,564 INFO L165 LiptonReduction]: Total number of compositions: 21 [2021-06-11 19:22:36,574 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 725 [2021-06-11 19:22:36,584 INFO L129 PetriNetUnfolder]: 1/7 cut-off events. [2021-06-11 19:22:36,584 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 19:22:36,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:22:36,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:22:36,585 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:22:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:22:36,591 INFO L82 PathProgramCache]: Analyzing trace with hash 4548963, now seen corresponding path program 1 times [2021-06-11 19:22:36,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:22:36,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402237221] [2021-06-11 19:22:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:22:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:22:36,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:22:36,695 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-11 19:22:36,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:22:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:22:36,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402237221] [2021-06-11 19:22:36,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 19:22:36,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 19:22:36,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393921012] [2021-06-11 19:22:36,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 19:22:36,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:22:36,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 19:22:36,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 19:22:36,725 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 49 [2021-06-11 19:22:36,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 8 transitions, 28 flow. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2021-06-11 19:22:36,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:22:36,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 49 [2021-06-11 19:22:36,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:22:36,757 INFO L129 PetriNetUnfolder]: 2/13 cut-off events. [2021-06-11 19:22:36,758 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 19:22:36,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 13 events. 2/13 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 16. Up to 4 conditions per place. [2021-06-11 19:22:36,759 INFO L132 encePairwiseOnDemand]: 45/49 looper letters, 3 selfloop transitions, 1 changer transitions 2/10 dead transitions. [2021-06-11 19:22:36,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 10 transitions, 44 flow [2021-06-11 19:22:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 19:22:36,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 19:22:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 147 transitions. [2021-06-11 19:22:36,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-06-11 19:22:36,769 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 147 transitions. [2021-06-11 19:22:36,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 147 transitions. [2021-06-11 19:22:36,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:22:36,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 147 transitions. [2021-06-11 19:22:36,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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) [2021-06-11 19:22:36,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2021-06-11 19:22:36,776 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2021-06-11 19:22:36,777 INFO L185 Difference]: Start difference. First operand has 14 places, 8 transitions, 28 flow. Second operand 4 states and 147 transitions. [2021-06-11 19:22:36,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 10 transitions, 44 flow [2021-06-11 19:22:36,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 10 transitions, 36 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 19:22:36,780 INFO L241 Difference]: Finished difference. Result has 15 places, 8 transitions, 29 flow [2021-06-11 19:22:36,781 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=29, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2021-06-11 19:22:36,782 INFO L343 CegarLoopForPetriNet]: 14 programPoint places, 1 predicate places. [2021-06-11 19:22:36,782 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:22:36,782 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 8 transitions, 29 flow [2021-06-11 19:22:36,782 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 8 transitions, 29 flow [2021-06-11 19:22:36,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 8 transitions, 29 flow [2021-06-11 19:22:36,785 INFO L129 PetriNetUnfolder]: 1/10 cut-off events. [2021-06-11 19:22:36,785 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 19:22:36,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 10 events. 1/10 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 15. Up to 3 conditions per place. [2021-06-11 19:22:36,785 INFO L151 LiptonReduction]: Number of co-enabled transitions 2 [2021-06-11 19:22:36,786 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:22:36,786 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:22:36,786 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-06-11 19:22:36,787 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 8 transitions, 29 flow [2021-06-11 19:22:36,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2021-06-11 19:22:36,787 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:22:36,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:22:36,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 19:22:36,787 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:22:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:22:36,788 INFO L82 PathProgramCache]: Analyzing trace with hash 6076953, now seen corresponding path program 2 times [2021-06-11 19:22:36,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:22:36,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537268416] [2021-06-11 19:22:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:22:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:22:36,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:22:36,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:22:36,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:22:36,810 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-11 19:22:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:22:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:22:36,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537268416] [2021-06-11 19:22:36,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 19:22:36,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 19:22:36,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418138968] [2021-06-11 19:22:36,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 19:22:36,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:22:36,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 19:22:36,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 19:22:36,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 49 [2021-06-11 19:22:36,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 8 transitions, 29 flow. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2021-06-11 19:22:36,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:22:36,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 49 [2021-06-11 19:22:36,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:22:36,833 INFO L129 PetriNetUnfolder]: 1/9 cut-off events. [2021-06-11 19:22:36,833 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-06-11 19:22:36,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 9 events. 1/9 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2021-06-11 19:22:36,833 INFO L132 encePairwiseOnDemand]: 45/49 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2021-06-11 19:22:36,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 8 transitions, 38 flow [2021-06-11 19:22:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 19:22:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 19:22:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2021-06-11 19:22:36,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7397959183673469 [2021-06-11 19:22:36,835 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 145 transitions. [2021-06-11 19:22:36,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 145 transitions. [2021-06-11 19:22:36,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:22:36,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 145 transitions. [2021-06-11 19:22:36,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2021-06-11 19:22:36,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2021-06-11 19:22:36,837 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2021-06-11 19:22:36,837 INFO L185 Difference]: Start difference. First operand has 14 places, 8 transitions, 29 flow. Second operand 4 states and 145 transitions. [2021-06-11 19:22:36,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 8 transitions, 38 flow [2021-06-11 19:22:36,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 8 transitions, 36 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 19:22:36,838 INFO L241 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2021-06-11 19:22:36,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2021-06-11 19:22:36,838 INFO L343 CegarLoopForPetriNet]: 14 programPoint places, 1 predicate places. [2021-06-11 19:22:36,839 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:22:36,839 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 0 transitions, 0 flow [2021-06-11 19:22:36,839 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 0 transitions, 0 flow [2021-06-11 19:22:36,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 19:22:36,839 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 19:22:36,839 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 19:22:36,839 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. [2021-06-11 19:22:36,839 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 19:22:36,840 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:22:36,840 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:22:36,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 19:22:36,841 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 19:22:36,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2021-06-11 19:22:36,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 19:22:36,843 INFO L202 PluginConnector]: Adding new model security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 07:22:36 BasicIcfg [2021-06-11 19:22:36,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 19:22:36,844 INFO L168 Benchmark]: Toolchain (without parser) took 1286.11 ms. Allocated memory is still 362.8 MB. Free memory was 342.5 MB in the beginning and 199.1 MB in the end (delta: 143.4 MB). Peak memory consumption was 143.4 MB. Max. memory is 16.0 GB. [2021-06-11 19:22:36,844 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.38 ms. Allocated memory is still 362.8 MB. Free memory is still 343.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 19:22:36,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.79 ms. Allocated memory is still 362.8 MB. Free memory was 342.5 MB in the beginning and 341.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 19:22:36,845 INFO L168 Benchmark]: Boogie Preprocessor took 10.03 ms. Allocated memory is still 362.8 MB. Free memory was 341.0 MB in the beginning and 340.1 MB in the end (delta: 842.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 19:22:36,845 INFO L168 Benchmark]: RCFGBuilder took 172.36 ms. Allocated memory is still 362.8 MB. Free memory was 340.0 MB in the beginning and 329.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-11 19:22:36,846 INFO L168 Benchmark]: TraceAbstraction took 1080.57 ms. Allocated memory is still 362.8 MB. Free memory was 329.2 MB in the beginning and 199.1 MB in the end (delta: 130.1 MB). Peak memory consumption was 128.7 MB. Max. memory is 16.0 GB. [2021-06-11 19:22:36,847 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 0.38 ms. Allocated memory is still 362.8 MB. Free memory is still 343.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 16.79 ms. Allocated memory is still 362.8 MB. Free memory was 342.5 MB in the beginning and 341.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.03 ms. Allocated memory is still 362.8 MB. Free memory was 341.0 MB in the beginning and 340.1 MB in the end (delta: 842.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 172.36 ms. Allocated memory is still 362.8 MB. Free memory was 340.0 MB in the beginning and 329.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1080.57 ms. Allocated memory is still 362.8 MB. Free memory was 329.2 MB in the beginning and 199.1 MB in the end (delta: 130.1 MB). Peak memory consumption was 128.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 686.3ms, 27 PlacesBefore, 14 PlacesAfterwards, 24 TransitionsBefore, 8 TransitionsAfterwards, 198 CoEnabledTransitionPairs, 5 FixpointIterations, 1 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 21 TotalNumberOfCompositions, 127 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 127, positive: 127, positive conditional: 127, 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: 127, positive: 127, positive conditional: 0, positive unconditional: 127, 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: 127, positive: 127, positive conditional: 0, positive unconditional: 127, 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: 104, positive: 104, positive conditional: 0, positive unconditional: 104, 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: 104, positive: 104, positive conditional: 0, positive unconditional: 104, 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: 127, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 104, unknown conditional: 0, unknown unconditional: 104] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3ms, 15 PlacesBefore, 14 PlacesAfterwards, 8 TransitionsBefore, 8 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): 104, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 15 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): 104, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - PositiveResult [Line: 69]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1027.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 82.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 762.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=1, InterpolantAutomatonStates: 8, 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: 2.8ms SsaConstructionTime, 15.4ms SatisfiabilityAnalysisTime, 80.9ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 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...