/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/pthread_inc.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:36:08,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:36:08,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:36:08,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 20:36:08,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 20:36:08,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 20:36:08,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 20:36:08,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 20:36:08,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 20:36:08,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 20:36:08,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 20:36:08,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 20:36:08,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 20:36:08,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 20:36:08,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 20:36:08,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 20:36:08,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 20:36:08,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 20:36:08,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 20:36:08,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 20:36:08,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 20:36:08,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 20:36:08,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 20:36:08,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 20:36:08,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 20:36:08,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-10 20:36:08,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-10 20:36:08,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-10 20:36:08,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-10 20:36:08,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-10 20:36:08,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-10 20:36:08,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-10 20:36:08,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-10 20:36:08,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 20:36:08,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 20:36:08,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 20:36:08,997 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-NoLbe.epf [2021-03-10 20:36:09,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:36:09,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:36:09,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:36:09,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:36:09,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:36:09,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:36:09,026 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:36:09,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:36:09,026 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:36:09,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:36:09,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:36:09,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:36:09,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:36:09,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:36:09,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:36:09,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:36:09,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:36:09,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:36:09,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:36:09,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:36:09,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:36:09,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:36:09,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:36:09,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:36:09,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:36:09,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:36:09,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:36:09,283 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-10 20:36:09,284 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-10 20:36:09,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl [2021-03-10 20:36:09,285 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl' [2021-03-10 20:36:09,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:36:09,320 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-10 20:36:09,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:36:09,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:36:09,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:36:09,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:36:09,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:36:09,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:36:09,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:36:09,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/1) ... [2021-03-10 20:36:09,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:36:09,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:36:09,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:36:09,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:36:09,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (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 [2021-03-10 20:36:09,406 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-10 20:36:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:36:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:36:09,407 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2021-03-10 20:36:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-03-10 20:36:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-03-10 20:36:09,408 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 20:36:09,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:36:09,500 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-03-10 20:36:09,501 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:36:09 BoogieIcfgContainer [2021-03-10 20:36:09,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:36:09,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:36:09,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:36:09,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:36:09,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 08:36:09" (1/2) ... [2021-03-10 20:36:09,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b47c2a and model type pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:36:09, skipping insertion in model container [2021-03-10 20:36:09,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:36:09" (2/2) ... [2021-03-10 20:36:09,506 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread_inc.bpl [2021-03-10 20:36:09,509 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:36:09,509 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:36:09,512 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 20:36:09,512 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:36:09,523 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,523 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,523 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,523 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,524 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,524 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,524 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,524 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,525 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,527 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:36:09,537 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-10 20:36:09,550 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:36:09,550 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:36:09,550 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:36:09,550 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:36:09,550 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:36:09,550 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:36:09,550 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:36:09,550 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:36:09,556 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 11 transitions, 27 flow [2021-03-10 20:36:09,562 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 27 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 26 states have internal predecessors, (40), 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) [2021-03-10 20:36:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 26 states have internal predecessors, (40), 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) [2021-03-10 20:36:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-03-10 20:36:09,567 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:36:09,567 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-03-10 20:36:09,567 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 20:36:09,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:36:09,571 INFO L82 PathProgramCache]: Analyzing trace with hash 50162, now seen corresponding path program 1 times [2021-03-10 20:36:09,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:36:09,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160611314] [2021-03-10 20:36:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:36:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:09,630 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:09,639 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:09,649 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 20:36:09,649 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 20:36:09,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:36:09,650 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-10 20:36:09,650 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-10 20:36:09,670 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,670 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,673 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,673 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,675 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,677 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:36:09,677 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 20:36:09,678 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:36:09,679 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:36:09,679 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:36:09,679 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:36:09,679 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:36:09,679 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:36:09,679 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:36:09,679 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:36:09,680 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 19 transitions, 50 flow [2021-03-10 20:36:09,708 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 211 states, 200 states have (on average 2.485) internal successors, (497), 210 states have internal predecessors, (497), 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) [2021-03-10 20:36:09,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 200 states have (on average 2.485) internal successors, (497), 210 states have internal predecessors, (497), 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) [2021-03-10 20:36:09,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-03-10 20:36:09,709 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:36:09,709 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-03-10 20:36:09,710 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:36:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:36:09,710 INFO L82 PathProgramCache]: Analyzing trace with hash 2146966, now seen corresponding path program 1 times [2021-03-10 20:36:09,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:36:09,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508261592] [2021-03-10 20:36:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:36:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:09,714 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:09,716 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:09,717 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 20:36:09,717 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 20:36:09,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 20:36:09,717 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-10 20:36:09,718 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-10 20:36:09,731 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,731 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,732 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,732 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,732 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,732 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,733 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,733 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,733 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,734 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,734 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,734 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,735 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,735 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,736 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,736 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,737 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,737 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,737 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,739 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,739 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,742 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,756 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,766 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:36:09,766 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-10 20:36:09,767 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:36:09,767 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:36:09,767 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:36:09,768 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:36:09,768 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:36:09,768 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:36:09,768 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:36:09,768 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:36:09,769 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 27 transitions, 75 flow [2021-03-10 20:36:09,856 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1683 states, 1660 states have (on average 3.277710843373494) internal successors, (5441), 1682 states have internal predecessors, (5441), 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) [2021-03-10 20:36:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 1683 states, 1660 states have (on average 3.277710843373494) internal successors, (5441), 1682 states have internal predecessors, (5441), 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) [2021-03-10 20:36:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-03-10 20:36:09,861 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:36:09,861 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-03-10 20:36:09,861 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:36:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:36:09,862 INFO L82 PathProgramCache]: Analyzing trace with hash 92537823, now seen corresponding path program 1 times [2021-03-10 20:36:09,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:36:09,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565617170] [2021-03-10 20:36:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:36:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:09,866 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:09,868 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:09,869 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 20:36:09,870 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 20:36:09,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 20:36:09,870 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-10 20:36:09,870 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-10 20:36:09,875 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,875 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,875 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,875 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,876 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,876 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,876 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,876 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,876 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,879 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,880 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,880 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,880 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,880 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,880 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,881 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,882 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,883 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:09,884 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:36:09,884 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-10 20:36:09,885 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:36:09,885 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:36:09,885 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:36:09,885 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:36:09,885 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:36:09,885 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:36:09,885 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:36:09,885 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:36:09,887 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 35 transitions, 102 flow [2021-03-10 20:36:11,028 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13459 states, 13412 states have (on average 4.122949597375484) internal successors, (55297), 13458 states have internal predecessors, (55297), 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) [2021-03-10 20:36:11,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 13459 states, 13412 states have (on average 4.122949597375484) internal successors, (55297), 13458 states have internal predecessors, (55297), 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) [2021-03-10 20:36:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-03-10 20:36:11,064 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:36:11,064 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-10 20:36:11,064 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:36:11,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:36:11,065 INFO L82 PathProgramCache]: Analyzing trace with hash -384193469, now seen corresponding path program 1 times [2021-03-10 20:36:11,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:36:11,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939156136] [2021-03-10 20:36:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:36:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:11,069 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:36:11,071 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:36:11,073 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 20:36:11,073 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 20:36:11,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 20:36:11,073 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-10 20:36:11,073 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-10 20:36:11,078 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,078 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,078 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,079 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,079 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,079 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,079 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,079 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,079 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,079 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,080 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,081 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,081 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,081 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,081 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,081 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,081 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,081 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,082 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,083 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,083 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,083 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,083 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,083 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,083 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,083 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,084 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,085 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,085 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,086 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,087 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:36:11,087 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:36:11,088 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-10 20:36:11,088 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:36:11,088 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:36:11,088 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:36:11,088 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:36:11,089 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:36:11,089 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:36:11,089 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:36:11,089 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:36:11,094 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 43 transitions, 131 flow [2021-03-10 20:36:57,613 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107667 states, 107572 states have (on average 4.988073104525341) internal successors, (536577), 107666 states have internal predecessors, (536577), 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) [2021-03-10 20:36:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 107667 states, 107572 states have (on average 4.988073104525341) internal successors, (536577), 107666 states have internal predecessors, (536577), 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) [2021-03-10 20:36:57,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-03-10 20:36:57,794 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:36:57,794 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:36:57,794 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:36:57,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:36:57,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1926720781, now seen corresponding path program 1 times [2021-03-10 20:36:57,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:36:57,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749797565] [2021-03-10 20:36:57,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:36:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:36:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:36:57,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749797565] [2021-03-10 20:36:57,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:36:57,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-10 20:36:57,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218452651] [2021-03-10 20:36:57,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 20:36:57,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:36:57,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 20:36:57,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:36:57,968 INFO L87 Difference]: Start difference. First operand has 107667 states, 107572 states have (on average 4.988073104525341) internal successors, (536577), 107666 states have internal predecessors, (536577), 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) [2021-03-10 20:36:59,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:36:59,821 INFO L93 Difference]: Finished difference Result 159884 states and 789753 transitions. [2021-03-10 20:36:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 20:36:59,824 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 [2021-03-10 20:36:59,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:37:01,166 INFO L225 Difference]: With dead ends: 159884 [2021-03-10 20:37:01,167 INFO L226 Difference]: Without dead ends: 159606 [2021-03-10 20:37:01,167 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:37:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159606 states. [2021-03-10 20:37:07,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159606 to 133396. [2021-03-10 20:37:07,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133396 states, 133308 states have (on average 5.0090167131755035) internal successors, (667742), 133395 states have internal predecessors, (667742), 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) [2021-03-10 20:37:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133396 states to 133396 states and 667742 transitions. [2021-03-10 20:37:08,711 INFO L78 Accepts]: Start accepts. Automaton has 133396 states and 667742 transitions. Word has length 7 [2021-03-10 20:37:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:37:08,711 INFO L480 AbstractCegarLoop]: Abstraction has 133396 states and 667742 transitions. [2021-03-10 20:37:08,711 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) [2021-03-10 20:37:08,711 INFO L276 IsEmpty]: Start isEmpty. Operand 133396 states and 667742 transitions. [2021-03-10 20:37:08,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-03-10 20:37:08,712 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:37:08,713 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:37:08,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 20:37:08,713 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:37:08,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:37:08,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1962030060, now seen corresponding path program 1 times [2021-03-10 20:37:08,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:37:08,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264378576] [2021-03-10 20:37:08,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:37:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:37:08,719 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:37:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:37:08,721 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:37:08,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 20:37:08,722 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 20:37:08,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 20:37:08,722 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-10 20:37:08,723 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-03-10 20:37:08,728 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,728 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,728 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,728 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,728 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,728 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,729 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,730 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,731 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,732 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,734 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,734 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,734 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,735 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,736 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,736 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,737 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,738 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:37:08,738 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:37:08,739 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-10 20:37:08,739 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:37:08,739 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:37:08,739 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:37:08,739 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:37:08,739 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:37:08,739 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:37:08,740 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:37:08,740 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:37:08,741 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 51 transitions, 162 flow Received shutdown request... [2021-03-10 20:50:44,245 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-10 20:50:44,247 WARN L224 ceAbstractionStarter]: Timeout [2021-03-10 20:50:44,248 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:50:44 BasicIcfg [2021-03-10 20:50:44,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:50:44,249 INFO L168 Benchmark]: Toolchain (without parser) took 874931.20 ms. Allocated memory was 379.6 MB in the beginning and 9.6 GB in the end (delta: 9.2 GB). Free memory was 360.1 MB in the beginning and 5.6 GB in the end (delta: -5.3 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. [2021-03-10 20:50:44,249 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 379.6 MB. Free memory was 361.1 MB in the beginning and 361.1 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:50:44,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.64 ms. Allocated memory is still 379.6 MB. Free memory was 359.6 MB in the beginning and 358.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:50:44,250 INFO L168 Benchmark]: Boogie Preprocessor took 11.37 ms. Allocated memory is still 379.6 MB. Free memory was 358.1 MB in the beginning and 357.3 MB in the end (delta: 872.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:50:44,250 INFO L168 Benchmark]: RCFGBuilder took 149.23 ms. Allocated memory is still 379.6 MB. Free memory was 357.2 MB in the beginning and 347.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-10 20:50:44,251 INFO L168 Benchmark]: TraceAbstraction took 874745.76 ms. Allocated memory was 379.6 MB in the beginning and 9.6 GB in the end (delta: 9.2 GB). Free memory was 347.1 MB in the beginning and 5.6 GB in the end (delta: -5.3 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. [2021-03-10 20:50:44,253 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 379.6 MB. Free memory was 361.1 MB in the beginning and 361.1 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.64 ms. Allocated memory is still 379.6 MB. Free memory was 359.6 MB in the beginning and 358.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.37 ms. Allocated memory is still 379.6 MB. Free memory was 358.1 MB in the beginning and 357.3 MB in the end (delta: 872.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 149.23 ms. Allocated memory is still 379.6 MB. Free memory was 357.2 MB in the beginning and 347.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 874745.76 ms. Allocated memory was 379.6 MB in the beginning and 9.6 GB in the end (delta: 9.2 GB). Free memory was 347.1 MB in the beginning and 5.6 GB in the end (delta: -5.3 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 64 places, 51 transitions, 162 flow. Already constructed 423884 states. Currently 67195 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 874571.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 226.2ms, AutomataDifference: 3331.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 863302.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 64 SDtfs, 32 SDslu, 22 SDs, 0 SdLazy, 36 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=133396occurred 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: 7535.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 26210 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.4ms SsaConstructionTime, 16.9ms SatisfiabilityAnalysisTime, 29.2ms 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