/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/pthread_inc.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:09:45,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:09:45,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:09:45,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 14:09:45,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 14:09:45,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 14:09:45,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 14:09:45,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 14:09:45,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 14:09:45,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 14:09:45,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 14:09:45,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 14:09:45,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:09:45,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:09:45,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:09:45,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:09:45,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:09:45,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:09:45,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:09:45,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:09:45,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:09:45,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:09:45,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:09:45,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:09:45,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 14:09:45,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 14:09:45,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 14:09:45,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 14:09:45,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 14:09:45,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 14:09:45,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 14:09:45,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 14:09:45,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 14:09:45,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 14:09:45,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 14:09:45,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 14:09:45,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 14:09:45,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 14:09:45,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:09:45,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:09:45,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:09:45,602 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 14:09:45,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:09:45,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:09:45,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:09:45,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:09:45,642 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:09:45,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:09:45,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:09:45,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:09:45,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:09:45,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:09:45,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:09:45,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:09:45,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:09:45,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:09:45,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:09:45,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:09:45,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:09:45,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:09:45,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:09:45,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:09:45,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:09:45,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:09:45,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:09:45,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:09:45,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:09:45,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:09:45,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:09:45,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:09:45,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:09:45,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:09:45,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:09:45,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:09:45,995 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 14:09:45,996 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 14:09:45,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl [2021-03-11 14:09:45,997 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl' [2021-03-11 14:09:46,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:09:46,033 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 14:09:46,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:09:46,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:09:46,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:09:46,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:09:46,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:09:46,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:09:46,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:09:46,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/1) ... [2021-03-11 14:09:46,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:09:46,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:09:46,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:09:46,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:09:46,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (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 14:09:46,143 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 14:09:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:09:46,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:09:46,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2021-03-11 14:09:46,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-03-11 14:09:46,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-03-11 14:09:46,145 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 14:09:46,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:09:46,289 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-03-11 14:09:46,295 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:09:46 BoogieIcfgContainer [2021-03-11 14:09:46,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:09:46,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:09:46,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:09:46,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:09:46,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:09:46" (1/2) ... [2021-03-11 14:09:46,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54747446 and model type pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:09:46, skipping insertion in model container [2021-03-11 14:09:46,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:09:46" (2/2) ... [2021-03-11 14:09:46,305 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread_inc.bpl [2021-03-11 14:09:46,313 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:09:46,313 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:09:46,316 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 14:09:46,317 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:09:46,335 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,336 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,336 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,337 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,339 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,339 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,340 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,341 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,351 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,354 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:09:46,368 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 14:09:46,394 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:09:46,395 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:09:46,395 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:09:46,395 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:09:46,395 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:09:46,395 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:09:46,395 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:09:46,395 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:09:46,406 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:09:46,416 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 11 transitions, 27 flow [2021-03-11 14:09:46,419 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 11 transitions, 27 flow [2021-03-11 14:09:46,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 11 transitions, 27 flow [2021-03-11 14:09:46,440 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-11 14:09:46,441 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:09:46,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 5 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 14:09:46,444 INFO L116 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-11 14:09:46,809 INFO L131 LiptonReduction]: Checked pairs total: 12 [2021-03-11 14:09:46,809 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-11 14:09:46,816 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 6 transitions, 17 flow [2021-03-11 14:09:46,821 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12 states, 7 states have (on average 2.142857142857143) internal successors, (15), 11 states have internal predecessors, (15), 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 14:09:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 2.142857142857143) internal successors, (15), 11 states have internal predecessors, (15), 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 14:09:46,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-03-11 14:09:46,826 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:09:46,826 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-03-11 14:09:46,827 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:09:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:09:46,831 INFO L82 PathProgramCache]: Analyzing trace with hash 50162, now seen corresponding path program 1 times [2021-03-11 14:09:46,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:09:46,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54386945] [2021-03-11 14:09:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:09:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:46,892 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:46,895 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:46,906 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 14:09:46,906 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 14:09:46,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:09:46,907 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 14:09:46,907 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-11 14:09:46,912 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,913 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,913 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,913 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,913 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,913 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,913 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,914 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,914 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,914 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,914 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,914 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,915 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,915 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,915 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,915 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,916 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,917 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:46,918 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:09:46,918 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 14:09:46,920 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:09:46,920 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:09:46,920 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:09:46,920 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:09:46,920 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:09:46,920 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:09:46,920 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:09:46,920 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:09:46,921 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:09:46,922 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-11 14:09:46,922 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-11 14:09:46,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 50 flow [2021-03-11 14:09:46,927 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-11 14:09:46,927 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:09:46,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-11 14:09:46,931 INFO L116 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-11 14:09:47,056 INFO L131 LiptonReduction]: Checked pairs total: 378 [2021-03-11 14:09:47,057 INFO L133 LiptonReduction]: Total number of compositions: 2 [2021-03-11 14:09:47,058 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions, 46 flow [2021-03-11 14:09:47,084 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 164 states, 153 states have (on average 2.477124183006536) internal successors, (379), 163 states have internal predecessors, (379), 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 14:09:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 153 states have (on average 2.477124183006536) internal successors, (379), 163 states have internal predecessors, (379), 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 14:09:47,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-03-11 14:09:47,086 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:09:47,086 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-03-11 14:09:47,086 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:09:47,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:09:47,087 INFO L82 PathProgramCache]: Analyzing trace with hash 2331670, now seen corresponding path program 1 times [2021-03-11 14:09:47,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:09:47,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175999541] [2021-03-11 14:09:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:09:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:47,091 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:47,093 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:47,094 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 14:09:47,094 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 14:09:47,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:09:47,095 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 14:09:47,096 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-11 14:09:47,128 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,129 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,129 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,129 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,129 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,130 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,130 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,130 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,130 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,131 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,131 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,131 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,131 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,131 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,132 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,132 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,132 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,133 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,133 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,133 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,133 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,133 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,134 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,134 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,134 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,144 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,156 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:09:47,156 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 14:09:47,157 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:09:47,157 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:09:47,158 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:09:47,158 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:09:47,158 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:09:47,158 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:09:47,158 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:09:47,158 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:09:47,159 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:09:47,160 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 27 transitions, 75 flow [2021-03-11 14:09:47,160 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 27 transitions, 75 flow [2021-03-11 14:09:47,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 75 flow [2021-03-11 14:09:47,166 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-11 14:09:47,166 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:09:47,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-11 14:09:47,168 INFO L116 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-11 14:09:47,318 INFO L131 LiptonReduction]: Checked pairs total: 1030 [2021-03-11 14:09:47,319 INFO L133 LiptonReduction]: Total number of compositions: 3 [2021-03-11 14:09:47,320 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 24 transitions, 69 flow [2021-03-11 14:09:47,393 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1144 states, 1121 states have (on average 3.2355040142729705) internal successors, (3627), 1143 states have internal predecessors, (3627), 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 14:09:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 1144 states, 1121 states have (on average 3.2355040142729705) internal successors, (3627), 1143 states have internal predecessors, (3627), 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 14:09:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-03-11 14:09:47,400 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:09:47,400 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 14:09:47,401 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:09:47,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:09:47,401 INFO L82 PathProgramCache]: Analyzing trace with hash 100172263, now seen corresponding path program 1 times [2021-03-11 14:09:47,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:09:47,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824018572] [2021-03-11 14:09:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:09:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:47,406 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:47,408 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:47,410 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 14:09:47,410 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 14:09:47,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 14:09:47,410 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 14:09:47,410 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-11 14:09:47,414 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,415 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,415 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,415 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,415 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,415 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,415 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,416 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,416 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,416 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,416 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,416 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,417 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,417 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,417 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,417 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,417 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,417 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,418 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,418 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,418 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,418 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,418 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,418 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,419 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,419 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,419 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,419 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,419 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,419 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,420 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,420 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,420 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,421 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,422 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,423 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:47,423 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:09:47,423 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-11 14:09:47,424 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:09:47,424 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:09:47,424 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:09:47,425 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:09:47,425 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:09:47,425 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:09:47,425 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:09:47,425 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:09:47,426 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:09:47,426 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 35 transitions, 102 flow [2021-03-11 14:09:47,426 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 35 transitions, 102 flow [2021-03-11 14:09:47,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 102 flow [2021-03-11 14:09:47,433 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-03-11 14:09:47,433 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:09:47,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-11 14:09:47,435 INFO L116 LiptonReduction]: Number of co-enabled transitions 784 [2021-03-11 14:09:47,564 INFO L131 LiptonReduction]: Checked pairs total: 1984 [2021-03-11 14:09:47,564 INFO L133 LiptonReduction]: Total number of compositions: 4 [2021-03-11 14:09:47,566 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 31 transitions, 94 flow [2021-03-11 14:09:48,163 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8004 states, 7957 states have (on average 4.0521553349252235) internal successors, (32243), 8003 states have internal predecessors, (32243), 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 14:09:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 8004 states, 7957 states have (on average 4.0521553349252235) internal successors, (32243), 8003 states have internal predecessors, (32243), 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 14:09:48,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-03-11 14:09:48,202 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:09:48,202 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-11 14:09:48,202 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:09:48,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:09:48,203 INFO L82 PathProgramCache]: Analyzing trace with hash -58775453, now seen corresponding path program 1 times [2021-03-11 14:09:48,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:09:48,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329562132] [2021-03-11 14:09:48,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:09:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:48,213 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:09:48,216 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:09:48,220 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 14:09:48,221 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 14:09:48,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 14:09:48,221 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 14:09:48,221 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-11 14:09:48,228 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,228 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,229 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,230 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,232 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,233 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,233 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,233 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,237 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,237 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,238 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,239 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,240 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,241 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,241 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,241 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,241 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,241 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,241 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,244 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,246 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,246 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,247 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:09:48,247 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:09:48,248 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-11 14:09:48,249 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:09:48,249 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:09:48,249 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:09:48,249 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:09:48,249 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:09:48,249 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:09:48,249 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:09:48,249 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:09:48,253 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:09:48,253 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 43 transitions, 131 flow [2021-03-11 14:09:48,254 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 43 transitions, 131 flow [2021-03-11 14:09:48,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 131 flow [2021-03-11 14:09:48,270 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-03-11 14:09:48,271 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:09:48,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 151 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-11 14:09:48,273 INFO L116 LiptonReduction]: Number of co-enabled transitions 1260 [2021-03-11 14:09:48,420 INFO L131 LiptonReduction]: Checked pairs total: 3126 [2021-03-11 14:09:48,420 INFO L133 LiptonReduction]: Total number of compositions: 5 [2021-03-11 14:09:48,421 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 38 transitions, 121 flow [2021-03-11 14:10:01,510 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 56024 states, 55929 states have (on average 4.893972715407034) internal successors, (273715), 56023 states have internal predecessors, (273715), 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 14:10:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 56024 states, 55929 states have (on average 4.893972715407034) internal successors, (273715), 56023 states have internal predecessors, (273715), 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 14:10:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-03-11 14:10:01,685 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:10:01,685 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:10:01,685 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:10:01,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:10:01,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1496841348, now seen corresponding path program 1 times [2021-03-11 14:10:01,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:10:01,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133102460] [2021-03-11 14:10:01,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:10:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:10:01,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:10:01,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:10:01,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:10:01,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:10:01,749 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 14:10:01,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133102460] [2021-03-11 14:10:01,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:10:01,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 14:10:01,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541475082] [2021-03-11 14:10:01,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:10:01,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:10:01,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:10:01,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:10:01,857 INFO L87 Difference]: Start difference. First operand has 56024 states, 55929 states have (on average 4.893972715407034) internal successors, (273715), 56023 states have internal predecessors, (273715), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 14:10:03,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:10:03,673 INFO L93 Difference]: Finished difference Result 78741 states and 379806 transitions. [2021-03-11 14:10:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:10:03,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-03-11 14:10:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:10:04,518 INFO L225 Difference]: With dead ends: 78741 [2021-03-11 14:10:04,518 INFO L226 Difference]: Without dead ends: 78706 [2021-03-11 14:10:04,519 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:10:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78706 states. [2021-03-11 14:10:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78706 to 71030. [2021-03-11 14:10:09,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71030 states, 70942 states have (on average 4.9175664627442135) internal successors, (348862), 71029 states have internal predecessors, (348862), 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 14:10:10,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71030 states to 71030 states and 348862 transitions. [2021-03-11 14:10:10,293 INFO L78 Accepts]: Start accepts. Automaton has 71030 states and 348862 transitions. Word has length 7 [2021-03-11 14:10:10,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:10:10,294 INFO L480 AbstractCegarLoop]: Abstraction has 71030 states and 348862 transitions. [2021-03-11 14:10:10,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 14:10:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 71030 states and 348862 transitions. [2021-03-11 14:10:10,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-03-11 14:10:10,295 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:10:10,295 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:10:10,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 14:10:10,296 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:10:10,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:10:10,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1461532069, now seen corresponding path program 1 times [2021-03-11 14:10:10,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:10:10,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733818771] [2021-03-11 14:10:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:10:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:10:10,302 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:10:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:10:10,304 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:10:10,305 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 14:10:10,306 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 14:10:10,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 14:10:10,306 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 14:10:10,306 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-03-11 14:10:10,311 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,311 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,312 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,312 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,312 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,312 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,312 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,312 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,313 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,314 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,315 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,316 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,317 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,317 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,317 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,317 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,317 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,317 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,318 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,319 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,320 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,320 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,321 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:10:10,321 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:10:10,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-11 14:10:10,322 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:10:10,322 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:10:10,322 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:10:10,322 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:10:10,322 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:10:10,322 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:10:10,323 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:10:10,323 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:10:10,324 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:10:10,324 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 51 transitions, 162 flow [2021-03-11 14:10:10,324 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 51 transitions, 162 flow [2021-03-11 14:10:10,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 162 flow [2021-03-11 14:10:10,331 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-03-11 14:10:10,331 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:10:10,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 57 events. 0/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 204 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-11 14:10:10,333 INFO L116 LiptonReduction]: Number of co-enabled transitions 1848 [2021-03-11 14:10:10,519 INFO L131 LiptonReduction]: Checked pairs total: 4832 [2021-03-11 14:10:10,519 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-11 14:10:10,521 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 45 transitions, 150 flow Received shutdown request... [2021-03-11 14:24:14,200 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-11 14:24:14,206 WARN L224 ceAbstractionStarter]: Timeout [2021-03-11 14:24:14,206 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:24:14 BasicIcfg [2021-03-11 14:24:14,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:24:14,208 INFO L168 Benchmark]: Toolchain (without parser) took 868177.23 ms. Allocated memory was 335.5 MB in the beginning and 9.9 GB in the end (delta: 9.6 GB). Free memory was 315.8 MB in the beginning and 6.2 GB in the end (delta: -5.9 GB). Peak memory consumption was 4.1 GB. Max. memory is 16.0 GB. [2021-03-11 14:24:14,208 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 335.5 MB. Free memory was 316.8 MB in the beginning and 316.8 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:24:14,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 335.5 MB. Free memory was 315.3 MB in the beginning and 313.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:24:14,212 INFO L168 Benchmark]: Boogie Preprocessor took 16.05 ms. Allocated memory is still 335.5 MB. Free memory was 313.8 MB in the beginning and 312.9 MB in the end (delta: 907.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:24:14,212 INFO L168 Benchmark]: RCFGBuilder took 218.58 ms. Allocated memory is still 335.5 MB. Free memory was 312.8 MB in the beginning and 303.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-11 14:24:14,215 INFO L168 Benchmark]: TraceAbstraction took 867909.43 ms. Allocated memory was 335.5 MB in the beginning and 9.9 GB in the end (delta: 9.6 GB). Free memory was 302.9 MB in the beginning and 6.2 GB in the end (delta: -5.9 GB). Peak memory consumption was 4.1 GB. Max. memory is 16.0 GB. [2021-03-11 14:24:14,221 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 0.12 ms. Allocated memory is still 335.5 MB. Free memory was 316.8 MB in the beginning and 316.8 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 335.5 MB. Free memory was 315.3 MB in the beginning and 313.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.05 ms. Allocated memory is still 335.5 MB. Free memory was 313.8 MB in the beginning and 312.9 MB in the end (delta: 907.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 218.58 ms. Allocated memory is still 335.5 MB. Free memory was 312.8 MB in the beginning and 303.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 867909.43 ms. Allocated memory was 335.5 MB in the beginning and 9.9 GB in the end (delta: 9.6 GB). Free memory was 302.9 MB in the beginning and 6.2 GB in the end (delta: -5.9 GB). Peak memory consumption was 4.1 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 389.9ms, 14 PlacesBefore, 9 PlacesAfterwards, 11 TransitionsBefore, 6 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 12, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.8ms, 24 PlacesBefore, 22 PlacesAfterwards, 19 TransitionsBefore, 17 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 378 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 213, positive: 173, positive conditional: 0, positive unconditional: 173, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 106, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 106, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 87, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 213, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 106, unknown conditional: 0, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 158.9ms, 34 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 24 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1030 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 292, positive: 231, positive conditional: 0, positive unconditional: 231, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 167, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 167, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 292, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 167, unknown conditional: 0, unknown unconditional: 167] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.0ms, 44 PlacesBefore, 40 PlacesAfterwards, 35 TransitionsBefore, 31 TransitionsAfterwards, 784 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1984 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 335, positive: 253, positive conditional: 0, positive unconditional: 253, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 201, positive: 163, positive conditional: 0, positive unconditional: 163, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 201, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 335, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 201, unknown conditional: 0, unknown unconditional: 201] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.4ms, 54 PlacesBefore, 49 PlacesAfterwards, 43 TransitionsBefore, 38 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 3126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 588, positive: 489, positive conditional: 0, positive unconditional: 489, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 382, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 382, positive: 328, positive conditional: 0, positive unconditional: 328, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 113, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 588, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 382, unknown conditional: 0, unknown unconditional: 382] , Statistics on independence cache: Total cache size (in pairs): 181, Positive cache size: 139, Positive conditional cache size: 0, Positive unconditional cache size: 139, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 195.5ms, 64 PlacesBefore, 58 PlacesAfterwards, 51 TransitionsBefore, 45 TransitionsAfterwards, 1848 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 4832 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 772, positive: 648, positive conditional: 0, positive unconditional: 648, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 531, positive: 463, positive conditional: 0, positive unconditional: 463, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 531, positive: 457, positive conditional: 0, positive unconditional: 457, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 139, negative conditional: 0, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 772, positive: 185, positive conditional: 0, positive unconditional: 185, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 531, unknown conditional: 0, unknown unconditional: 531] , Statistics on independence cache: Total cache size (in pairs): 233, Positive cache size: 184, Positive conditional cache size: 0, Positive unconditional cache size: 184, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49 - TimeoutResultAtElement [Line: 22]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 22). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 58 places, 45 transitions, 150 flow. Already constructed 377944 states. Currently 10000 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 867675.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 224.2ms, AutomataDifference: 2764.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 858702.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 27 SDslu, 17 SDs, 0 SdLazy, 36 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=71030occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5632.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 7676 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.4ms SsaConstructionTime, 23.2ms SatisfiabilityAnalysisTime, 46.6ms InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: Timeout Completed graceful shutdown