/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-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:03:59,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:03:59,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:03:59,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 14:03:59,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 14:03:59,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 14:03:59,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 14:03:59,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 14:03:59,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 14:03:59,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 14:03:59,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 14:03:59,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 14:03:59,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:03:59,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:03:59,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:03:59,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:03:59,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:03:59,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:03:59,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:03:59,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:03:59,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:03:59,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:03:59,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:03:59,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:03:59,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 14:03:59,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 14:03:59,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 14:03:59,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 14:03:59,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 14:03:59,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 14:03:59,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 14:03:59,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 14:03:59,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 14:03:59,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 14:03:59,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 14:03:59,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 14:03:59,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 14:03:59,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 14:03:59,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:03:59,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:03:59,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:03:59,941 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-FA-SemanticLbe.epf [2021-03-11 14:03:59,972 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:03:59,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:03:59,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:03:59,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:03:59,980 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:03:59,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:03:59,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:03:59,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:03:59,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:03:59,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:03:59,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:03:59,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:03:59,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:03:59,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:03:59,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:03:59,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:03:59,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:03:59,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:03:59,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:03:59,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:03:59,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:03:59,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:03:59,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:03:59,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:03:59,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:03:59,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:03:59,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:03:59,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:03:59,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:04:00,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:04:00,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:04:00,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:04:00,271 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 14:04:00,272 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 14:04:00,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl [2021-03-11 14:04:00,273 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/LBE_bigexample_safe_BA.bpl' [2021-03-11 14:04:00,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:04:00,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 14:04:00,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:04:00,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:04:00,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:04:00,318 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,323 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:04:00,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:04:00,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:04:00,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:04:00,336 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,337 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,338 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,338 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,340 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,340 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,341 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 11.03 02:04:00" (1/1) ... [2021-03-11 14:04:00,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:04:00,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:04:00,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:04:00,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:04:00,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:04:00" (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 [2021-03-11 14:04:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-03-11 14:04:00,402 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-03-11 14:04:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:04:00,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:04:00,404 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 14:04:00,512 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:04:00,512 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 14:04:00,513 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:04:00 BoogieIcfgContainer [2021-03-11 14:04:00,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:04:00,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:04:00,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:04:00,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:04:00,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:04:00" (1/2) ... [2021-03-11 14:04:00,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d1e030 and model type LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:04:00, skipping insertion in model container [2021-03-11 14:04:00,546 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 11.03 02:04:00" (2/2) ... [2021-03-11 14:04:00,547 INFO L111 eAbstractionObserver]: Analyzing ICFG LBE_bigexample_safe_BA.bpl [2021-03-11 14:04:00,552 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:04:00,552 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:04:00,555 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-03-11 14:04:00,555 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:04:00,640 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-11 14:04:00,667 INFO L253 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2021-03-11 14:04:00,682 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:04:00,682 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:04:00,683 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:04:00,683 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:04:00,683 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:04:00,683 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:04:00,683 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:04:00,683 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:04:00,703 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:04:00,711 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 106 transitions, 280 flow [2021-03-11 14:04:00,713 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 106 transitions, 280 flow [2021-03-11 14:04:00,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 106 transitions, 280 flow [2021-03-11 14:04:00,758 INFO L129 PetriNetUnfolder]: 17/118 cut-off events. [2021-03-11 14:04:00,758 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-11 14:04:00,766 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. [2021-03-11 14:04:00,774 INFO L116 LiptonReduction]: Number of co-enabled transitions 6536 [2021-03-11 14:04:01,544 INFO L131 LiptonReduction]: Checked pairs total: 13001 [2021-03-11 14:04:01,545 INFO L133 LiptonReduction]: Total number of compositions: 117 [2021-03-11 14:04:01,552 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 69 transitions, 206 flow [2021-03-11 14:04:10,234 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 66125 states, 36125 states have (on average 7.889301038062284) internal successors, (285001), 66124 states have internal predecessors, (285001), 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) [2021-03-11 14:04:10,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 66125 states, 36125 states have (on average 7.889301038062284) internal successors, (285001), 66124 states have internal predecessors, (285001), 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) [2021-03-11 14:04:10,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-03-11 14:04:10,484 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:04:10,484 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-03-11 14:04:10,485 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]=== [2021-03-11 14:04:10,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:04:10,489 INFO L82 PathProgramCache]: Analyzing trace with hash 91179, now seen corresponding path program 1 times [2021-03-11 14:04:10,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:04:10,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851146212] [2021-03-11 14:04:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:04:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:04:10,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:04:10,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:04:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:04:10,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851146212] [2021-03-11 14:04:10,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:04:10,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 14:04:10,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811700007] [2021-03-11 14:04:10,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 14:04:10,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:04:10,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 14:04:10,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 14:04:10,669 INFO L87 Difference]: Start difference. First operand has 66125 states, 36125 states have (on average 7.889301038062284) internal successors, (285001), 66124 states have internal predecessors, (285001), 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) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-03-11 14:04:10,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:04:10,717 INFO L93 Difference]: Finished difference Result 460 states and 1472 transitions. [2021-03-11 14:04:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 14:04:10,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2021-03-11 14:04:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:04:10,748 INFO L225 Difference]: With dead ends: 460 [2021-03-11 14:04:10,748 INFO L226 Difference]: Without dead ends: 443 [2021-03-11 14:04:10,749 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 14:04:10,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-03-11 14:04:10,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-03-11 14:04:10,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 412 states have (on average 3.412621359223301) internal successors, (1406), 442 states have internal predecessors, (1406), 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) [2021-03-11 14:04:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1406 transitions. [2021-03-11 14:04:10,836 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1406 transitions. Word has length 3 [2021-03-11 14:04:10,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:04:10,836 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 1406 transitions. [2021-03-11 14:04:10,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-03-11 14:04:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1406 transitions. [2021-03-11 14:04:10,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-03-11 14:04:10,837 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:04:10,837 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-03-11 14:04:10,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:04:10,838 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]=== [2021-03-11 14:04:10,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:04:10,840 INFO L82 PathProgramCache]: Analyzing trace with hash 90989, now seen corresponding path program 1 times [2021-03-11 14:04:10,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:04:10,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914881190] [2021-03-11 14:04:10,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:04:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:04:10,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:04:10,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:04:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:04:10,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914881190] [2021-03-11 14:04:10,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:04:10,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 14:04:10,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899476504] [2021-03-11 14:04:10,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:04:10,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:04:10,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:04:10,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:04:10,863 INFO L87 Difference]: Start difference. First operand 443 states and 1406 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-03-11 14:04:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:04:10,875 INFO L93 Difference]: Finished difference Result 97 states and 232 transitions. [2021-03-11 14:04:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:04:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2021-03-11 14:04:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:04:10,876 INFO L225 Difference]: With dead ends: 97 [2021-03-11 14:04:10,876 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 14:04:10,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:04:10,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 14:04:10,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 14:04:10,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-03-11 14:04:10,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 14:04:10,877 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-03-11 14:04:10,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:04:10,878 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 14:04:10,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-03-11 14:04:10,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 14:04:10,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 14:04:10,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:04:10,882 INFO L202 PluginConnector]: Adding new model LBE_bigexample_safe_BA.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:04:10 BasicIcfg [2021-03-11 14:04:10,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:04:10,884 INFO L168 Benchmark]: Toolchain (without parser) took 10579.70 ms. Allocated memory was 255.9 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 236.6 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 225.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:04:10,885 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 93.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:04:10,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.30 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:04:10,887 INFO L168 Benchmark]: Boogie Preprocessor took 11.37 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.8 MB in the end (delta: 810.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:04:10,888 INFO L168 Benchmark]: RCFGBuilder took 171.03 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 224.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-11 14:04:10,892 INFO L168 Benchmark]: TraceAbstraction took 10367.28 ms. Allocated memory was 255.9 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 223.6 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 212.5 MB. Max. memory is 16.0 GB. [2021-03-11 14:04:10,895 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 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 93.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.30 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.37 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.8 MB in the end (delta: 810.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 171.03 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 224.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10367.28 ms. Allocated memory was 255.9 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 223.6 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 212.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 831.9ms, 107 PlacesBefore, 70 PlacesAfterwards, 106 TransitionsBefore, 69 TransitionsAfterwards, 6536 CoEnabledTransitionPairs, 6 FixpointIterations, 0 TrivialSequentialCompositions, 117 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 117 TotalNumberOfCompositions, 13001 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13001, positive: 13001, positive conditional: 0, positive unconditional: 13001, 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: 2834, positive: 2834, positive conditional: 0, positive unconditional: 2834, 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: 2834, positive: 2834, positive conditional: 0, positive unconditional: 2834, 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: 13001, positive: 10167, positive conditional: 0, positive unconditional: 10167, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2834, unknown conditional: 0, unknown unconditional: 2834] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 214, Positive conditional cache size: 0, Positive unconditional cache size: 214, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 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 - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10198.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 249.7ms, AutomataDifference: 185.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9551.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=66125occurred 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: 76.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.5ms SsaConstructionTime, 8.5ms SatisfiabilityAnalysisTime, 32.3ms 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...