/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/weaver-benchmarks/generated/chl/time-trans.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 15:54:52,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 15:54:52,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 15:54:52,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 15:54:52,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 15:54:52,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 15:54:52,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 15:54:52,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 15:54:52,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 15:54:52,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 15:54:52,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 15:54:52,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 15:54:52,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 15:54:52,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 15:54:52,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 15:54:52,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 15:54:52,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 15:54:52,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 15:54:52,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 15:54:52,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 15:54:52,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 15:54:52,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 15:54:52,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 15:54:52,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 15:54:52,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 15:54:52,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 15:54:52,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 15:54:52,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 15:54:52,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 15:54:52,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 15:54:52,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 15:54:52,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 15:54:52,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 15:54:52,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 15:54:52,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 15:54:52,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 15:54:52,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 15:54:52,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 15:54:52,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 15:54:52,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 15:54:52,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 15:54:52,472 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 15:54:52,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 15:54:52,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 15:54:52,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 15:54:52,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 15:54:52,506 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 15:54:52,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 15:54:52,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 15:54:52,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 15:54:52,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 15:54:52,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 15:54:52,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 15:54:52,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 15:54:52,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 15:54:52,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 15:54:52,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 15:54:52,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 15:54:52,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 15:54:52,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 15:54:52,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 15:54:52,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 15:54:52,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 15:54:52,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 15:54:52,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 15:54:52,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 15:54:52,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 15:54:52,771 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 15:54:52,771 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 15:54:52,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/time-trans.wvr.bpl [2021-03-11 15:54:52,772 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/time-trans.wvr.bpl' [2021-03-11 15:54:52,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 15:54:52,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 15:54:52,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 15:54:52,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 15:54:52,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 15:54:52,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 15:54:52,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 15:54:52,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 15:54:52,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 15:54:52,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/1) ... [2021-03-11 15:54:52,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 15:54:52,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 15:54:52,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 15:54:52,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 15:54:52,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (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 15:54:52,885 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 15:54:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 15:54:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 15:54:52,885 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 15:54:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 15:54:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 15:54:52,886 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 15:54:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 15:54:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 15:54:52,886 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 15:54:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 15:54:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 15:54:52,886 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 15:54:53,107 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 15:54:53,107 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 15:54:53,108 INFO L202 PluginConnector]: Adding new model time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:54:53 BoogieIcfgContainer [2021-03-11 15:54:53,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 15:54:53,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 15:54:53,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 15:54:53,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 15:54:53,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:54:52" (1/2) ... [2021-03-11 15:54:53,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313ee1a9 and model type time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:54:53, skipping insertion in model container [2021-03-11 15:54:53,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:54:53" (2/2) ... [2021-03-11 15:54:53,113 INFO L111 eAbstractionObserver]: Analyzing ICFG time-trans.wvr.bpl [2021-03-11 15:54:53,116 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 15:54:53,116 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 15:54:53,118 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 15:54:53,118 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 15:54:53,164 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-11 15:54:53,174 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 15:54:53,194 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 15:54:53,195 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 15:54:53,195 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 15:54:53,195 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 15:54:53,195 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 15:54:53,195 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 15:54:53,195 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 15:54:53,195 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 15:54:53,206 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 15:54:53,213 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:54:53,215 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:54:53,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-03-11 15:54:53,242 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-11 15:54:53,242 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 15:54:53,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 15:54:53,244 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-11 15:54:53,326 INFO L131 LiptonReduction]: Checked pairs total: 42 [2021-03-11 15:54:53,326 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-11 15:54:53,333 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 14 transitions, 52 flow [2021-03-11 15:54:53,339 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 15:54:53,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 15:54:53,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:54:53,345 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:54:53,346 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:54:53,346 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:54:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:54:53,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1025465478, now seen corresponding path program 1 times [2021-03-11 15:54:53,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:54:53,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940433169] [2021-03-11 15:54:53,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:54:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:54:53,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:53,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:54:53,477 INFO L142 QuantifierPusher]: treesize reduction 14, result has 56.3 percent of original size [2021-03-11 15:54:53,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 15:54:53,504 INFO L142 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size [2021-03-11 15:54:53,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 15:54:53,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:53,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 15:54:53,571 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 15:54:53,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940433169] [2021-03-11 15:54:53,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:54:53,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:54:53,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120469385] [2021-03-11 15:54:53,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:54:53,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:54:53,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:54:53,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:54:53,591 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:53,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:54:53,732 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-03-11 15:54:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:54:53,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:54:53,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:54:53,738 INFO L225 Difference]: With dead ends: 36 [2021-03-11 15:54:53,738 INFO L226 Difference]: Without dead ends: 28 [2021-03-11 15:54:53,739 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 134.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:54:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-03-11 15:54:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2021-03-11 15:54:53,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 15:54:53,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2021-03-11 15:54:53,757 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 34 transitions. Word has length 10 [2021-03-11 15:54:53,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:54:53,757 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-03-11 15:54:53,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:53,757 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2021-03-11 15:54:53,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:54:53,758 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:54:53,758 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:54:53,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 15:54:53,758 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:54:53,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:54:53,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1024398768, now seen corresponding path program 2 times [2021-03-11 15:54:53,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:54:53,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087680262] [2021-03-11 15:54:53,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:54:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:54:53,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:53,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:54:53,790 INFO L142 QuantifierPusher]: treesize reduction 14, result has 56.3 percent of original size [2021-03-11 15:54:53,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 15:54:53,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:53,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 15:54:53,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:53,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 15:54:53,833 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 15:54:53,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087680262] [2021-03-11 15:54:53,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:54:53,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:54:53,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081776808] [2021-03-11 15:54:53,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:54:53,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:54:53,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:54:53,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:54:53,838 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:53,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:54:53,930 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2021-03-11 15:54:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:54:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:54:53,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:54:53,932 INFO L225 Difference]: With dead ends: 34 [2021-03-11 15:54:53,933 INFO L226 Difference]: Without dead ends: 24 [2021-03-11 15:54:53,933 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:54:53,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-03-11 15:54:53,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-03-11 15:54:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 15:54:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-03-11 15:54:53,938 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 10 [2021-03-11 15:54:53,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:54:53,938 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-03-11 15:54:53,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:53,939 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-03-11 15:54:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:54:53,939 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:54:53,939 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:54:53,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 15:54:53,940 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:54:53,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:54:53,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1877082416, now seen corresponding path program 3 times [2021-03-11 15:54:53,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:54:53,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312577906] [2021-03-11 15:54:53,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:54:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:54:53,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:53,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:54:53,996 INFO L142 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-03-11 15:54:53,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 15:54:54,034 INFO L142 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size [2021-03-11 15:54:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 15:54:54,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 15:54:54,074 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 15:54:54,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312577906] [2021-03-11 15:54:54,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:54:54,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:54:54,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19753057] [2021-03-11 15:54:54,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:54:54,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:54:54,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:54:54,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:54:54,077 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:54:54,177 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2021-03-11 15:54:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:54:54,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:54:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:54:54,178 INFO L225 Difference]: With dead ends: 28 [2021-03-11 15:54:54,178 INFO L226 Difference]: Without dead ends: 20 [2021-03-11 15:54:54,178 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 146.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:54:54,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-03-11 15:54:54,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-03-11 15:54:54,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 15:54:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-03-11 15:54:54,181 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2021-03-11 15:54:54,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:54:54,181 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-03-11 15:54:54,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-03-11 15:54:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:54:54,183 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:54:54,183 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:54:54,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 15:54:54,184 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:54:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:54:54,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1759830806, now seen corresponding path program 4 times [2021-03-11 15:54:54,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:54:54,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106255695] [2021-03-11 15:54:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:54:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:54:54,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:54:54,213 INFO L142 QuantifierPusher]: treesize reduction 89, result has 32.6 percent of original size [2021-03-11 15:54:54,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 15:54:54,236 INFO L142 QuantifierPusher]: treesize reduction 12, result has 88.5 percent of original size [2021-03-11 15:54:54,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-11 15:54:54,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 15:54:54,297 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 15:54:54,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106255695] [2021-03-11 15:54:54,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:54:54,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:54:54,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076559901] [2021-03-11 15:54:54,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:54:54,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:54:54,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:54:54,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:54:54,299 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:54:54,404 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-03-11 15:54:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:54:54,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:54:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:54:54,405 INFO L225 Difference]: With dead ends: 20 [2021-03-11 15:54:54,405 INFO L226 Difference]: Without dead ends: 13 [2021-03-11 15:54:54,405 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 167.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:54:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-03-11 15:54:54,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-03-11 15:54:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 15:54:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-03-11 15:54:54,406 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2021-03-11 15:54:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:54:54,407 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-03-11 15:54:54,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-03-11 15:54:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:54:54,407 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:54:54,407 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:54:54,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 15:54:54,407 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:54:54,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:54:54,411 INFO L82 PathProgramCache]: Analyzing trace with hash -989435546, now seen corresponding path program 5 times [2021-03-11 15:54:54,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:54:54,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304703087] [2021-03-11 15:54:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:54:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:54:54,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:54:54,432 INFO L142 QuantifierPusher]: treesize reduction 27, result has 47.1 percent of original size [2021-03-11 15:54:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 15:54:54,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 15:54:54,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 15:54:54,477 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 15:54:54,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304703087] [2021-03-11 15:54:54,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:54:54,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:54:54,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800063954] [2021-03-11 15:54:54,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:54:54,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:54:54,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:54:54,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:54:54,479 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:54:54,545 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-03-11 15:54:54,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:54:54,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:54:54,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:54:54,546 INFO L225 Difference]: With dead ends: 17 [2021-03-11 15:54:54,546 INFO L226 Difference]: Without dead ends: 11 [2021-03-11 15:54:54,546 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:54:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-03-11 15:54:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-03-11 15:54:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 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 15:54:54,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-03-11 15:54:54,548 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2021-03-11 15:54:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:54:54,548 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-03-11 15:54:54,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-03-11 15:54:54,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:54:54,570 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:54:54,570 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:54:54,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 15:54:54,570 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:54:54,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:54:54,571 INFO L82 PathProgramCache]: Analyzing trace with hash -900956276, now seen corresponding path program 6 times [2021-03-11 15:54:54,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:54:54,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286712412] [2021-03-11 15:54:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:54:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:54:54,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:54:54,599 INFO L142 QuantifierPusher]: treesize reduction 35, result has 40.7 percent of original size [2021-03-11 15:54:54,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 15:54:54,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 15:54:54,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:54:54,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 15:54:54,638 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 15:54:54,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286712412] [2021-03-11 15:54:54,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:54:54,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:54:54,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379664668] [2021-03-11 15:54:54,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:54:54,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:54:54,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:54:54,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:54:54,639 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:54:54,703 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-03-11 15:54:54,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:54:54,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:54:54,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:54:54,704 INFO L225 Difference]: With dead ends: 10 [2021-03-11 15:54:54,704 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 15:54:54,704 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:54:54,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 15:54:54,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 15:54:54,704 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 15:54:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 15:54:54,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-03-11 15:54:54,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:54:54,705 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 15:54:54,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:54:54,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 15:54:54,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 15:54:54,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 15:54:54,707 INFO L202 PluginConnector]: Adding new model time-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:54:54 BasicIcfg [2021-03-11 15:54:54,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 15:54:54,708 INFO L168 Benchmark]: Toolchain (without parser) took 1903.70 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 410.9 MB in the end (delta: -174.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.0 GB. [2021-03-11 15:54:54,708 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 174.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 15:54:54,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.59 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:54:54,709 INFO L168 Benchmark]: Boogie Preprocessor took 10.28 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 901.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:54:54,709 INFO L168 Benchmark]: RCFGBuilder took 266.20 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 237.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-11 15:54:54,709 INFO L168 Benchmark]: TraceAbstraction took 1598.10 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 410.9 MB in the end (delta: -174.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. [2021-03-11 15:54:54,711 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 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 174.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.59 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.28 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 901.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 266.20 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 237.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1598.10 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 410.9 MB in the end (delta: -174.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.3ms, 29 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 0, positive unconditional: 42, 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: 30, positive: 30, positive conditional: 0, positive unconditional: 30, 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: 30, positive: 30, positive conditional: 0, positive unconditional: 30, 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: 42, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 30, unknown conditional: 0, unknown unconditional: 30] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 56]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1512.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 15.3ms, AutomataDifference: 603.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 144.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 67 SDtfs, 92 SDslu, 103 SDs, 0 SdLazy, 80 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 740.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.6ms SsaConstructionTime, 53.8ms SatisfiabilityAnalysisTime, 557.1ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 983 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...