/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/LBE_bigexample_safe_BA.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 13:11:33,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 13:11:33,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 13:11:33,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 13:11:33,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 13:11:33,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 13:11:33,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 13:11:33,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 13:11:33,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 13:11:33,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 13:11:33,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 13:11:33,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 13:11:33,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 13:11:33,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 13:11:33,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 13:11:33,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 13:11:33,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 13:11:33,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 13:11:33,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 13:11:33,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 13:11:33,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 13:11:33,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 13:11:33,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 13:11:33,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 13:11:33,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 13:11:33,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 13:11:33,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 13:11:33,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 13:11:33,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 13:11:33,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 13:11:33,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 13:11:33,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 13:11:33,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 13:11:33,306 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 13:11:33,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 13:11:33,306 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 13:11:33,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 13:11:33,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 13:11:33,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 13:11:33,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 13:11:33,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 13:11:33,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 13:11:33,308 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 13:11:33,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 13:11:33,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 13:11:33,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 13:11:33,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 13:11:33,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 13:11:33,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 13:11:33,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 13:11:33,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:11:33,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 13:11:33,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 13:11:33,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 13:11:33,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 13:11:33,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 13:11:33,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 13:11:33,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 13:11:33,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 13:11:33,310 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 13:11:33,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 13:11:33,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 13:11:33,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 13:11:33,615 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 13:11:33,616 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 13:11:33,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl [2021-03-26 13:11:33,618 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl' [2021-03-26 13:11:33,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 13:11:33,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 13:11:33,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 13:11:33,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 13:11:33,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 13:11:33,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 13:11:33,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 13:11:33,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 13:11:33,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 13:11:33,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... [2021-03-26 13:11:33,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 13:11:33,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 13:11:33,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 13:11:33,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 13:11:33,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:11:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-03-26 13:11:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-03-26 13:11:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 13:11:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 13:11:33,724 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 13:11:33,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 13:11:33,905 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 13:11:33,921 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:11:33 BoogieIcfgContainer [2021-03-26 13:11:33,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 13:11:33,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 13:11:33,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 13:11:33,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 13:11:33,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:11:33" (1/2) ... [2021-03-26 13:11:33,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a6a0f8 and model type LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 01:11:33, skipping insertion in model container [2021-03-26 13:11:33,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:11:33" (2/2) ... [2021-03-26 13:11:33,927 INFO L111 eAbstractionObserver]: Analyzing ICFG LBE_bigexample_safe_BA.bpl [2021-03-26 13:11:33,942 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 13:11:33,947 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-03-26 13:11:33,948 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 13:11:34,009 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-26 13:11:34,026 INFO L253 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2021-03-26 13:11:34,043 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:11:34,043 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:11:34,043 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:11:34,044 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:11:34,044 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:11:34,044 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:11:34,044 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:11:34,044 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:11:34,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 106 transitions, 280 flow [2021-03-26 13:11:34,091 INFO L129 PetriNetUnfolder]: 17/118 cut-off events. [2021-03-26 13:11:34,091 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-26 13:11:34,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 118 events. 17/118 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 470 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2021-03-26 13:11:34,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 106 transitions, 280 flow [2021-03-26 13:11:34,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 242 flow [2021-03-26 13:11:34,103 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:11:34,116 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 97 transitions, 242 flow [2021-03-26 13:11:34,119 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 97 transitions, 242 flow [2021-03-26 13:11:34,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 242 flow [2021-03-26 13:11:34,139 INFO L129 PetriNetUnfolder]: 14/113 cut-off events. [2021-03-26 13:11:34,139 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-26 13:11:34,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 113 events. 14/113 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 488 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2021-03-26 13:11:34,145 INFO L142 LiptonReduction]: Number of co-enabled transitions 6536 [2021-03-26 13:11:34,548 INFO L154 LiptonReduction]: Checked pairs total: 4430 [2021-03-26 13:11:34,548 INFO L156 LiptonReduction]: Total number of compositions: 70 [2021-03-26 13:11:34,550 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 448 [2021-03-26 13:11:34,555 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-03-26 13:11:34,556 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:11:34,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:11:34,556 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-26 13:11:34,557 INFO L428 AbstractCegarLoop]: === Iteration 1 === [barErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, barErr6ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3INUSE_VIOLATION, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:11:34,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:11:34,560 INFO L82 PathProgramCache]: Analyzing trace with hash 91137, now seen corresponding path program 1 times [2021-03-26 13:11:34,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:11:34,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633652187] [2021-03-26 13:11:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:11:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:11:34,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:11:34,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:11:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:11:34,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633652187] [2021-03-26 13:11:34,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:11:34,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:11:34,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382820175] [2021-03-26 13:11:34,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-26 13:11:34,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:11:34,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-26 13:11:34,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-26 13:11:34,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2021-03-26 13:11:34,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:11:34,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2021-03-26 13:11:34,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:11:34,655 INFO L129 PetriNetUnfolder]: 14/55 cut-off events. [2021-03-26 13:11:34,655 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-26 13:11:34,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 55 events. 14/55 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 161 event pairs, 0 based on Foata normal form. 13/59 useless extension candidates. Maximal degree in co-relation 91. Up to 12 conditions per place. [2021-03-26 13:11:34,657 INFO L132 encePairwiseOnDemand]: 147/176 looper letters, 0 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2021-03-26 13:11:34,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 39 transitions, 126 flow [2021-03-26 13:11:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-26 13:11:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-26 13:11:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2021-03-26 13:11:34,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8494318181818182 [2021-03-26 13:11:34,666 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2021-03-26 13:11:34,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2021-03-26 13:11:34,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:11:34,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2021-03-26 13:11:34,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,684 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,685 INFO L185 Difference]: Start difference. First operand has 72 places, 68 transitions, 184 flow. Second operand 2 states and 299 transitions. [2021-03-26 13:11:34,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 39 transitions, 126 flow [2021-03-26 13:11:34,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 94 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-26 13:11:34,689 INFO L241 Difference]: Finished difference. Result has 36 places, 39 transitions, 94 flow [2021-03-26 13:11:34,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=36, PETRI_TRANSITIONS=39} [2021-03-26 13:11:34,690 INFO L343 CegarLoopForPetriNet]: 72 programPoint places, -36 predicate places. [2021-03-26 13:11:34,690 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:11:34,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 39 transitions, 94 flow [2021-03-26 13:11:34,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 39 transitions, 94 flow [2021-03-26 13:11:34,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 39 transitions, 94 flow [2021-03-26 13:11:34,695 INFO L129 PetriNetUnfolder]: 14/55 cut-off events. [2021-03-26 13:11:34,695 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:11:34,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 14/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 181 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 35. Up to 12 conditions per place. [2021-03-26 13:11:34,696 INFO L142 LiptonReduction]: Number of co-enabled transitions 800 [2021-03-26 13:11:34,752 INFO L154 LiptonReduction]: Checked pairs total: 387 [2021-03-26 13:11:34,752 INFO L156 LiptonReduction]: Total number of compositions: 15 [2021-03-26 13:11:34,752 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-26 13:11:34,753 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 31 transitions, 78 flow [2021-03-26 13:11:34,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,754 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:11:34,754 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-26 13:11:34,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 13:11:34,754 INFO L428 AbstractCegarLoop]: === Iteration 2 === [barErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, barErr6ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3INUSE_VIOLATION, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr7ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr8ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr3ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr4ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr6ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, barErr5ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr1ASSERT_VIOLATIONASSERT, barErr2ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:11:34,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:11:34,755 INFO L82 PathProgramCache]: Analyzing trace with hash 90989, now seen corresponding path program 1 times [2021-03-26 13:11:34,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:11:34,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11549378] [2021-03-26 13:11:34,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:11:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:11:34,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:11:34,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:11:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:11:34,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11549378] [2021-03-26 13:11:34,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:11:34,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:11:34,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556827747] [2021-03-26 13:11:34,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:11:34,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:11:34,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:11:34,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:11:34,771 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 191 [2021-03-26 13:11:34,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 31 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:11:34,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 191 [2021-03-26 13:11:34,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:11:34,791 INFO L129 PetriNetUnfolder]: 80/155 cut-off events. [2021-03-26 13:11:34,791 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:11:34,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 155 events. 80/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 595 event pairs, 49 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 90. Up to 81 conditions per place. [2021-03-26 13:11:34,792 INFO L132 encePairwiseOnDemand]: 181/191 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-03-26 13:11:34,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 22 transitions, 72 flow [2021-03-26 13:11:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:11:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:11:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2021-03-26 13:11:34,794 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17801047120418848 [2021-03-26 13:11:34,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 102 transitions. [2021-03-26 13:11:34,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 102 transitions. [2021-03-26 13:11:34,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:11:34,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 102 transitions. [2021-03-26 13:11:34,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,796 INFO L185 Difference]: Start difference. First operand has 27 places, 31 transitions, 78 flow. Second operand 3 states and 102 transitions. [2021-03-26 13:11:34,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 22 transitions, 72 flow [2021-03-26 13:11:34,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 22 transitions, 72 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 13:11:34,796 INFO L241 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2021-03-26 13:11:34,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2021-03-26 13:11:34,797 INFO L343 CegarLoopForPetriNet]: 72 programPoint places, -52 predicate places. [2021-03-26 13:11:34,797 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:11:34,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 0 transitions, 0 flow [2021-03-26 13:11:34,798 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 0 transitions, 0 flow [2021-03-26 13:11:34,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 13:11:34,798 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 13:11:34,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:11:34,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 13:11:34,798 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 13:11:34,798 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:11:34,798 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:11:34,798 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 13:11:34,799 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 13:11:34,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:11:34,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 13:11:34,802 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 01:11:34 BasicIcfg [2021-03-26 13:11:34,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 13:11:34,803 INFO L168 Benchmark]: Toolchain (without parser) took 1157.82 ms. Allocated memory was 255.9 MB in the beginning and 455.1 MB in the end (delta: 199.2 MB). Free memory was 236.7 MB in the beginning and 409.4 MB in the end (delta: -172.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.0 GB. [2021-03-26 13:11:34,803 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.51 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 174.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:11:34,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.75 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 13:11:34,804 INFO L168 Benchmark]: Boogie Preprocessor took 11.14 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.2 MB in the end (delta: 730.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:11:34,804 INFO L168 Benchmark]: RCFGBuilder took 244.25 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 240.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.0 GB. [2021-03-26 13:11:34,805 INFO L168 Benchmark]: TraceAbstraction took 879.38 ms. Allocated memory was 255.9 MB in the beginning and 455.1 MB in the end (delta: 199.2 MB). Free memory was 240.7 MB in the beginning and 409.4 MB in the end (delta: -168.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB. [2021-03-26 13:11:34,806 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 0.51 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 174.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.75 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.14 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.2 MB in the end (delta: 730.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 244.25 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 240.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 879.38 ms. Allocated memory was 255.9 MB in the beginning and 455.1 MB in the end (delta: 199.2 MB). Free memory was 240.7 MB in the beginning and 409.4 MB in the end (delta: -168.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 429.5ms, 101 PlacesBefore, 72 PlacesAfterwards, 97 TransitionsBefore, 68 TransitionsAfterwards, 6536 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 70 TotalNumberOfCompositions, 4430 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4430, positive: 4430, positive conditional: 4430, 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: 4430, positive: 4430, positive conditional: 0, positive unconditional: 4430, 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: 4430, positive: 4430, positive conditional: 0, positive unconditional: 4430, 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: 2240, positive: 2240, positive conditional: 0, positive unconditional: 2240, 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: 2240, positive: 2240, positive conditional: 0, positive unconditional: 2240, 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: 4430, positive: 2190, positive conditional: 0, positive unconditional: 2190, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2240, unknown conditional: 0, unknown unconditional: 2240] , Statistics on independence cache: Total cache size (in pairs): 2240, Positive cache size: 2240, Positive conditional cache size: 0, Positive unconditional cache size: 2240, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.5ms, 36 PlacesBefore, 27 PlacesAfterwards, 39 TransitionsBefore, 31 TransitionsAfterwards, 800 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 387 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 387, positive: 387, positive conditional: 387, 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: 387, positive: 387, positive conditional: 0, positive unconditional: 387, 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: 387, positive: 387, positive conditional: 0, positive unconditional: 387, 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: 122, positive: 122, positive conditional: 0, positive unconditional: 122, 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: 122, positive: 122, positive conditional: 0, positive unconditional: 122, 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: 387, positive: 265, positive conditional: 0, positive unconditional: 265, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 122, unknown conditional: 0, unknown unconditional: 122] , Statistics on independence cache: Total cache size (in pairs): 2362, Positive cache size: 2362, Positive conditional cache size: 0, Positive unconditional cache size: 2362, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 20 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): 2362, Positive cache size: 2362, Positive conditional cache size: 0, Positive unconditional cache size: 2362, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - PositiveResult [Line: 40]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 43]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 39]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 41]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 38]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 42]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 35]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 24]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 759.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 77.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 510.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 5 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 2.4ms SsaConstructionTime, 7.3ms SatisfiabilityAnalysisTime, 26.0ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...