/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/semi1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 13:47:28,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 13:47:28,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 13:47:28,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 13:47:28,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 13:47:28,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 13:47:28,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 13:47:28,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 13:47:28,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 13:47:28,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 13:47:28,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 13:47:28,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 13:47:28,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 13:47:28,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 13:47:28,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 13:47:28,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 13:47:28,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 13:47:28,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 13:47:28,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 13:47:28,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 13:47:28,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 13:47:28,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 13:47:28,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 13:47:28,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 13:47:28,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 13:47:28,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 13:47:28,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 13:47:28,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 13:47:28,163 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-RepeatedSemanticLbe.epf [2021-06-11 13:47:28,190 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 13:47:28,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 13:47:28,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 13:47:28,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 13:47:28,192 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 13:47:28,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 13:47:28,193 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 13:47:28,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 13:47:28,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 13:47:28,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 13:47:28,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 13:47:28,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 13:47:28,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 13:47:28,194 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 13:47:28,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 13:47:28,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 13:47:28,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 13:47:28,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 13:47:28,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 13:47:28,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 13:47:28,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 13:47:28,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 13:47:28,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 13:47:28,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 13:47:28,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 13:47:28,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 13:47:28,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 13:47:28,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 13:47:28,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 13:47:28,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 13:47:28,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 13:47:28,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 13:47:28,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 13:47:28,490 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 13:47:28,491 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 13:47:28,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/semi1.wvr.bpl [2021-06-11 13:47:28,491 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/semi1.wvr.bpl' [2021-06-11 13:47:28,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 13:47:28,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 13:47:28,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 13:47:28,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 13:47:28,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 13:47:28,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 13:47:28,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 13:47:28,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 13:47:28,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 13:47:28,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/1) ... [2021-06-11 13:47:28,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 13:47:28,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 13:47:28,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 13:47:28,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 13:47:28,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (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 13:47:28,621 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-11 13:47:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 13:47:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 13:47:28,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-11 13:47:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 13:47:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 13:47:28,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 13:47:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 13:47:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 13:47:28,624 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 13:47:28,736 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 13:47:28,736 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 13:47:28,738 INFO L202 PluginConnector]: Adding new model semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 01:47:28 BoogieIcfgContainer [2021-06-11 13:47:28,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 13:47:28,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 13:47:28,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 13:47:28,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 13:47:28,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 01:47:28" (1/2) ... [2021-06-11 13:47:28,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791b339 and model type semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 01:47:28, skipping insertion in model container [2021-06-11 13:47:28,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 01:47:28" (2/2) ... [2021-06-11 13:47:28,744 INFO L111 eAbstractionObserver]: Analyzing ICFG semi1.wvr.bpl [2021-06-11 13:47:28,748 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 13:47:28,751 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 13:47:28,752 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 13:47:28,776 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-11 13:47:28,791 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 13:47:28,810 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 13:47:28,810 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 13:47:28,810 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 13:47:28,810 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 13:47:28,811 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 13:47:28,811 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 13:47:28,811 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 13:47:28,811 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 13:47:28,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 15 transitions, 46 flow [2021-06-11 13:47:28,834 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-11 13:47:28,834 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 13:47:28,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 13 events. 0/13 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-11 13:47:28,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 15 transitions, 46 flow [2021-06-11 13:47:28,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 11 transitions, 34 flow [2021-06-11 13:47:28,840 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 13:47:28,852 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 11 transitions, 34 flow [2021-06-11 13:47:28,855 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 11 transitions, 34 flow [2021-06-11 13:47:28,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 18 places, 11 transitions, 34 flow [2021-06-11 13:47:28,874 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-06-11 13:47:28,875 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 13:47:28,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 11 events. 0/11 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-11 13:47:28,876 INFO L151 LiptonReduction]: Number of co-enabled transitions 16 [2021-06-11 13:47:28,951 INFO L163 LiptonReduction]: Checked pairs total: 9 [2021-06-11 13:47:28,951 INFO L165 LiptonReduction]: Total number of compositions: 3 [2021-06-11 13:47:28,953 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-06-11 13:47:28,963 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-06-11 13:47:28,963 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 13:47:28,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 13:47:28,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 13:47:28,964 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 13:47:28,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 13:47:28,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1049824015, now seen corresponding path program 1 times [2021-06-11 13:47:28,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 13:47:28,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951226088] [2021-06-11 13:47:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 13:47:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 13:47:29,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:47:29,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:47:29,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:47:29,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 13:47:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:47:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:47:29,174 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 13:47:29,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951226088] [2021-06-11 13:47:29,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 13:47:29,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 13:47:29,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119908121] [2021-06-11 13:47:29,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 13:47:29,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 13:47:29,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 13:47:29,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 13:47:29,194 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 18 [2021-06-11 13:47:29,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 8 transitions, 28 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 13:47:29,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 13:47:29,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 18 [2021-06-11 13:47:29,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 13:47:29,215 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-06-11 13:47:29,215 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 13:47:29,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 12 events. 0/12 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-06-11 13:47:29,217 INFO L132 encePairwiseOnDemand]: 14/18 looper letters, 2 selfloop transitions, 2 changer transitions 2/10 dead transitions. [2021-06-11 13:47:29,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 10 transitions, 44 flow [2021-06-11 13:47:29,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 13:47:29,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 13:47:29,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2021-06-11 13:47:29,225 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2021-06-11 13:47:29,226 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 47 transitions. [2021-06-11 13:47:29,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 47 transitions. [2021-06-11 13:47:29,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 13:47:29,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 47 transitions. [2021-06-11 13:47:29,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 13:47:29,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 13:47:29,233 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 13:47:29,234 INFO L185 Difference]: Start difference. First operand has 15 places, 8 transitions, 28 flow. Second operand 4 states and 47 transitions. [2021-06-11 13:47:29,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 10 transitions, 44 flow [2021-06-11 13:47:29,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 10 transitions, 36 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 13:47:29,238 INFO L241 Difference]: Finished difference. Result has 15 places, 8 transitions, 30 flow [2021-06-11 13:47:29,239 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2021-06-11 13:47:29,240 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 0 predicate places. [2021-06-11 13:47:29,240 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 13:47:29,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 8 transitions, 30 flow [2021-06-11 13:47:29,240 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 8 transitions, 30 flow [2021-06-11 13:47:29,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 8 transitions, 30 flow [2021-06-11 13:47:29,244 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-06-11 13:47:29,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 13:47:29,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-06-11 13:47:29,244 INFO L151 LiptonReduction]: Number of co-enabled transitions 4 [2021-06-11 13:47:29,245 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 13:47:29,245 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 13:47:29,245 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 13:47:29,247 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 8 transitions, 30 flow [2021-06-11 13:47:29,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 13:47:29,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 13:47:29,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 13:47:29,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 13:47:29,247 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 13:47:29,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 13:47:29,248 INFO L82 PathProgramCache]: Analyzing trace with hash -938165425, now seen corresponding path program 2 times [2021-06-11 13:47:29,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 13:47:29,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835588963] [2021-06-11 13:47:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 13:47:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 13:47:29,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:47:29,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:47:29,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:47:29,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 13:47:29,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 13:47:29,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 13:47:29,291 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 13:47:29,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835588963] [2021-06-11 13:47:29,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 13:47:29,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 13:47:29,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488729182] [2021-06-11 13:47:29,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 13:47:29,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 13:47:29,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 13:47:29,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 13:47:29,300 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 18 [2021-06-11 13:47:29,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 8 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 13:47:29,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 13:47:29,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 18 [2021-06-11 13:47:29,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 13:47:29,315 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-06-11 13:47:29,316 INFO L130 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2021-06-11 13:47:29,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 7 events. 0/7 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-11 13:47:29,317 INFO L132 encePairwiseOnDemand]: 14/18 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2021-06-11 13:47:29,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 7 transitions, 32 flow [2021-06-11 13:47:29,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 13:47:29,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 13:47:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2021-06-11 13:47:29,325 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2021-06-11 13:47:29,325 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 44 transitions. [2021-06-11 13:47:29,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 44 transitions. [2021-06-11 13:47:29,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 13:47:29,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 44 transitions. [2021-06-11 13:47:29,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 13:47:29,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 13:47:29,327 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 13:47:29,327 INFO L185 Difference]: Start difference. First operand has 14 places, 8 transitions, 30 flow. Second operand 4 states and 44 transitions. [2021-06-11 13:47:29,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 7 transitions, 32 flow [2021-06-11 13:47:29,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 28 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 13:47:29,328 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-06-11 13:47:29,328 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=11, 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=14, PETRI_TRANSITIONS=0} [2021-06-11 13:47:29,328 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, -1 predicate places. [2021-06-11 13:47:29,329 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 13:47:29,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2021-06-11 13:47:29,329 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 0 transitions, 0 flow [2021-06-11 13:47:29,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 13:47:29,329 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 13:47:29,329 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 13:47:29,330 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 13:47:29,330 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 13:47:29,330 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 13:47:29,330 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 13:47:29,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 13:47:29,331 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 13:47:29,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 13:47:29,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 13:47:29,334 INFO L202 PluginConnector]: Adding new model semi1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 01:47:29 BasicIcfg [2021-06-11 13:47:29,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 13:47:29,336 INFO L168 Benchmark]: Toolchain (without parser) took 823.35 ms. Allocated memory is still 354.4 MB. Free memory was 334.2 MB in the beginning and 307.5 MB in the end (delta: 26.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.0 GB. [2021-06-11 13:47:29,337 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 354.4 MB. Free memory was 335.3 MB in the beginning and 335.2 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 13:47:29,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.78 ms. Allocated memory is still 354.4 MB. Free memory was 334.2 MB in the beginning and 332.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 13:47:29,343 INFO L168 Benchmark]: Boogie Preprocessor took 12.83 ms. Allocated memory is still 354.4 MB. Free memory was 332.7 MB in the beginning and 331.9 MB in the end (delta: 815.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 13:47:29,344 INFO L168 Benchmark]: RCFGBuilder took 185.14 ms. Allocated memory is still 354.4 MB. Free memory was 331.8 MB in the beginning and 322.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-11 13:47:29,345 INFO L168 Benchmark]: TraceAbstraction took 595.62 ms. Allocated memory is still 354.4 MB. Free memory was 322.1 MB in the beginning and 307.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.0 GB. [2021-06-11 13:47:29,351 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 0.14 ms. Allocated memory is still 354.4 MB. Free memory was 335.3 MB in the beginning and 335.2 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.78 ms. Allocated memory is still 354.4 MB. Free memory was 334.2 MB in the beginning and 332.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.83 ms. Allocated memory is still 354.4 MB. Free memory was 332.7 MB in the beginning and 331.9 MB in the end (delta: 815.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 185.14 ms. Allocated memory is still 354.4 MB. Free memory was 331.8 MB in the beginning and 322.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 595.62 ms. Allocated memory is still 354.4 MB. Free memory was 322.1 MB in the beginning and 307.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.1ms, 18 PlacesBefore, 15 PlacesAfterwards, 11 TransitionsBefore, 8 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0ms, 15 PlacesBefore, 14 PlacesAfterwards, 8 TransitionsBefore, 8 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 14 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): 8, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 526.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 82.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 148.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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: 3.8ms SsaConstructionTime, 44.3ms SatisfiabilityAnalysisTime, 124.7ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 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...