/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/pthread_inc.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 23:53:17,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 23:53:17,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 23:53:17,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 23:53:17,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 23:53:17,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 23:53:17,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 23:53:17,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 23:53:17,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 23:53:17,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 23:53:17,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 23:53:17,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 23:53:17,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 23:53:17,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 23:53:17,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 23:53:17,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 23:53:17,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 23:53:17,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 23:53:17,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 23:53:17,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 23:53:17,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 23:53:17,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 23:53:17,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 23:53:17,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 23:53:17,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 23:53:17,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 23:53:17,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 23:53:17,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 23:53:17,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 23:53:17,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 23:53:17,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 23:53:17,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 23:53:17,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 23:53:17,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 23:53:17,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 23:53:17,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 23:53:17,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-06-10 23:53:17,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 23:53:17,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 23:53:17,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 23:53:17,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 23:53:17,484 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 23:53:17,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 23:53:17,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 23:53:17,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 23:53:17,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 23:53:17,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 23:53:17,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 23:53:17,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 23:53:17,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 23:53:17,486 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 23:53:17,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 23:53:17,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 23:53:17,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 23:53:17,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 23:53:17,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 23:53:17,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 23:53:17,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 23:53:17,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 23:53:17,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 23:53:17,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 23:53:17,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 23:53:17,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 23:53:17,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 23:53:17,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 23:53:17,488 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 23:53:17,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 23:53:17,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 23:53:17,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 23:53:17,795 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-10 23:53:17,796 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-10 23:53:17,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl [2021-06-10 23:53:17,797 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl' [2021-06-10 23:53:17,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 23:53:17,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-10 23:53:17,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 23:53:17,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 23:53:17,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 23:53:17,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 23:53:17,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 23:53:17,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 23:53:17,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 23:53:17,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/1) ... [2021-06-10 23:53:17,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 23:53:17,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 23:53:17,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 23:53:17,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 23:53:17,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (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 [2021-06-10 23:53:17,926 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-10 23:53:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 23:53:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 23:53:17,927 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2021-06-10 23:53:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-06-10 23:53:17,928 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-06-10 23:53:17,929 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 23:53:18,072 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 23:53:18,072 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-10 23:53:18,078 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:53:18 BoogieIcfgContainer [2021-06-10 23:53:18,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 23:53:18,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 23:53:18,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 23:53:18,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 23:53:18,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 11:53:17" (1/2) ... [2021-06-10 23:53:18,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49975303 and model type pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:53:18, skipping insertion in model container [2021-06-10 23:53:18,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:53:18" (2/2) ... [2021-06-10 23:53:18,092 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread_inc.bpl [2021-06-10 23:53:18,100 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 23:53:18,104 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 23:53:18,104 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 23:53:18,125 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,125 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,126 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,126 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,128 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,129 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,130 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,131 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,143 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,146 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:53:18,162 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-10 23:53:18,192 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:53:18,192 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:53:18,193 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:53:18,193 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:53:18,193 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:53:18,193 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:53:18,193 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:53:18,193 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:53:18,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 11 transitions, 27 flow [2021-06-10 23:53:18,222 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-06-10 23:53:18,222 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,223 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. [2021-06-10 23:53:18,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 14 places, 11 transitions, 27 flow [2021-06-10 23:53:18,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 14 places, 11 transitions, 27 flow [2021-06-10 23:53:18,228 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:53:18,244 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 11 transitions, 27 flow [2021-06-10 23:53:18,248 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 11 transitions, 27 flow [2021-06-10 23:53:18,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 11 transitions, 27 flow [2021-06-10 23:53:18,276 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-06-10 23:53:18,276 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,276 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 4. Compared 9 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. [2021-06-10 23:53:18,278 INFO L151 LiptonReduction]: Number of co-enabled transitions 28 [2021-06-10 23:53:18,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:18,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:53:18,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:18,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:53:18,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:18,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:53:18,750 INFO L163 LiptonReduction]: Checked pairs total: 16 [2021-06-10 23:53:18,751 INFO L165 LiptonReduction]: Total number of compositions: 8 [2021-06-10 23:53:18,753 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 526 [2021-06-10 23:53:18,760 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-06-10 23:53:18,760 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:18,771 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-06-10 23:53:18,771 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 23:53:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:18,776 INFO L82 PathProgramCache]: Analyzing trace with hash 50162, now seen corresponding path program 1 times [2021-06-10 23:53:18,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:18,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018036597] [2021-06-10 23:53:18,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:18,831 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:18,834 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:18,844 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 23:53:18,844 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 23:53:18,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 23:53:18,845 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-10 23:53:18,845 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-10 23:53:18,849 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,849 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,849 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,850 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,850 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,850 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,850 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,850 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,851 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,851 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,851 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,851 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,852 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,852 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,852 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,852 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,853 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,854 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,855 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:53:18,855 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-10 23:53:18,857 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:53:18,857 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:53:18,857 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:53:18,858 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:53:18,858 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:53:18,858 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:53:18,858 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:53:18,858 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:53:18,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 50 flow [2021-06-10 23:53:18,863 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-06-10 23:53:18,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,864 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. [2021-06-10 23:53:18,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 19 transitions, 50 flow [2021-06-10 23:53:18,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 19 transitions, 50 flow [2021-06-10 23:53:18,865 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:53:18,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 19 transitions, 50 flow [2021-06-10 23:53:18,865 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 50 flow [2021-06-10 23:53:18,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 50 flow [2021-06-10 23:53:18,870 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-06-10 23:53:18,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,870 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 5. Compared 39 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. [2021-06-10 23:53:18,870 INFO L151 LiptonReduction]: Number of co-enabled transitions 168 [2021-06-10 23:53:18,938 INFO L163 LiptonReduction]: Checked pairs total: 360 [2021-06-10 23:53:18,938 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-10 23:53:18,939 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-06-10 23:53:18,941 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-06-10 23:53:18,942 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:18,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-06-10 23:53:18,942 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:18,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:18,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2393238, now seen corresponding path program 1 times [2021-06-10 23:53:18,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:18,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870694940] [2021-06-10 23:53:18,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:18,947 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:18,949 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:18,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 23:53:18,956 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 23:53:18,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 23:53:18,957 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-10 23:53:18,958 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-10 23:53:18,962 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,963 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,963 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,963 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,963 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,963 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,964 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,964 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,964 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,964 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,965 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,965 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,965 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,965 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,965 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,966 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,967 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,967 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,967 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,967 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,968 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,969 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,970 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:18,970 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:53:18,971 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-10 23:53:18,972 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:53:18,972 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:53:18,972 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:53:18,972 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:53:18,973 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:53:18,973 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:53:18,973 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:53:18,973 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:53:18,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 75 flow [2021-06-10 23:53:18,984 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-06-10 23:53:18,984 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,985 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 66 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. [2021-06-10 23:53:18,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 27 transitions, 75 flow [2021-06-10 23:53:18,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 75 flow [2021-06-10 23:53:18,986 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:53:18,986 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 27 transitions, 75 flow [2021-06-10 23:53:18,986 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 27 transitions, 75 flow [2021-06-10 23:53:18,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 75 flow [2021-06-10 23:53:18,992 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-06-10 23:53:18,992 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:18,992 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 6. Compared 79 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. [2021-06-10 23:53:18,993 INFO L151 LiptonReduction]: Number of co-enabled transitions 420 [2021-06-10 23:53:19,125 INFO L163 LiptonReduction]: Checked pairs total: 1030 [2021-06-10 23:53:19,125 INFO L165 LiptonReduction]: Total number of compositions: 3 [2021-06-10 23:53:19,125 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-06-10 23:53:19,129 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-06-10 23:53:19,129 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:19,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:19,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-06-10 23:53:19,129 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:19,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:19,130 INFO L82 PathProgramCache]: Analyzing trace with hash 102080873, now seen corresponding path program 1 times [2021-06-10 23:53:19,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:19,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967812081] [2021-06-10 23:53:19,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:19,134 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:19,138 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:19,139 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 23:53:19,140 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 23:53:19,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 23:53:19,140 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-10 23:53:19,140 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-10 23:53:19,147 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,147 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,148 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,148 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,148 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,148 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,148 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,148 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,149 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,149 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,149 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,149 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,149 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,150 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,150 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,150 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,150 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,150 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,150 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,151 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,151 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,151 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,151 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,151 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,152 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,152 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,152 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,152 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,152 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,152 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,152 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,153 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,153 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,154 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,155 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,156 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,156 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:53:19,157 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-10 23:53:19,158 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:53:19,158 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:53:19,158 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:53:19,158 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:53:19,158 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:53:19,158 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:53:19,158 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:53:19,159 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:53:19,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 102 flow [2021-06-10 23:53:19,167 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-06-10 23:53:19,167 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:19,167 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. [2021-06-10 23:53:19,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 35 transitions, 102 flow [2021-06-10 23:53:19,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 35 transitions, 102 flow [2021-06-10 23:53:19,168 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:53:19,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 35 transitions, 102 flow [2021-06-10 23:53:19,169 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 35 transitions, 102 flow [2021-06-10 23:53:19,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 102 flow [2021-06-10 23:53:19,176 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-06-10 23:53:19,176 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:19,177 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 113 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. [2021-06-10 23:53:19,179 INFO L151 LiptonReduction]: Number of co-enabled transitions 784 [2021-06-10 23:53:19,367 INFO L163 LiptonReduction]: Checked pairs total: 1938 [2021-06-10 23:53:19,367 INFO L165 LiptonReduction]: Total number of compositions: 4 [2021-06-10 23:53:19,367 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 199 [2021-06-10 23:53:19,372 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-10 23:53:19,372 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:19,372 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:19,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-06-10 23:53:19,373 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:19,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:19,373 INFO L82 PathProgramCache]: Analyzing trace with hash 391459, now seen corresponding path program 1 times [2021-06-10 23:53:19,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:19,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211463802] [2021-06-10 23:53:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:19,382 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:19,384 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:19,386 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 23:53:19,386 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 23:53:19,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 23:53:19,386 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-10 23:53:19,387 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-06-10 23:53:19,395 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,396 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,396 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,396 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,396 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,396 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,396 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,396 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,397 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,397 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,397 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,397 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,397 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,397 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,397 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,398 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,398 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,398 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,398 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,398 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,399 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,399 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,399 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,399 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,400 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,400 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,400 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,400 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,400 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,401 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,401 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,401 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,401 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,401 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,401 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,401 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,402 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,402 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,402 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,402 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,402 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,403 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,404 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,405 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,405 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:19,406 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:53:19,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-10 23:53:19,407 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:53:19,407 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:53:19,407 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:53:19,407 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:53:19,408 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:53:19,408 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:53:19,408 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:53:19,408 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:53:19,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 131 flow [2021-06-10 23:53:19,434 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-06-10 23:53:19,434 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:19,434 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 150 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. [2021-06-10 23:53:19,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 43 transitions, 131 flow [2021-06-10 23:53:19,435 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 43 transitions, 131 flow [2021-06-10 23:53:19,435 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:53:19,435 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 43 transitions, 131 flow [2021-06-10 23:53:19,435 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 43 transitions, 131 flow [2021-06-10 23:53:19,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 131 flow [2021-06-10 23:53:19,441 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-06-10 23:53:19,441 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:19,442 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 8. Compared 153 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. [2021-06-10 23:53:19,443 INFO L151 LiptonReduction]: Number of co-enabled transitions 1260 [2021-06-10 23:53:19,637 INFO L163 LiptonReduction]: Checked pairs total: 3194 [2021-06-10 23:53:19,638 INFO L165 LiptonReduction]: Total number of compositions: 5 [2021-06-10 23:53:19,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 203 [2021-06-10 23:53:19,653 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-06-10 23:53:19,653 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:19,654 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:19,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:53:19,654 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:19,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:19,654 INFO L82 PathProgramCache]: Analyzing trace with hash 337332926, now seen corresponding path program 1 times [2021-06-10 23:53:19,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:19,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303518204] [2021-06-10 23:53:19,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:53:19,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:19,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:53:19,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:19,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 23:53:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 23:53:19,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303518204] [2021-06-10 23:53:19,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:53:19,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 23:53:19,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062596201] [2021-06-10 23:53:19,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 23:53:19,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:53:19,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 23:53:19,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 23:53:19,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2021-06-10 23:53:19,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-06-10 23:53:19,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:53:19,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2021-06-10 23:53:19,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:53:21,587 INFO L129 PetriNetUnfolder]: 12575/18290 cut-off events. [2021-06-10 23:53:21,587 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 23:53:21,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35224 conditions, 18290 events. 12575/18290 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 129516 event pairs, 7859 based on Foata normal form. 0/14055 useless extension candidates. Maximal degree in co-relation 35179. Up to 12044 conditions per place. [2021-06-10 23:53:21,827 INFO L132 encePairwiseOnDemand]: 41/48 looper letters, 32 selfloop transitions, 6 changer transitions 0/55 dead transitions. [2021-06-10 23:53:21,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 231 flow [2021-06-10 23:53:21,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 23:53:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 23:53:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2021-06-10 23:53:21,841 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-06-10 23:53:21,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 105 transitions. [2021-06-10 23:53:21,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 105 transitions. [2021-06-10 23:53:21,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:53:21,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 105 transitions. [2021-06-10 23:53:21,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2021-06-10 23:53:21,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2021-06-10 23:53:21,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2021-06-10 23:53:21,876 INFO L185 Difference]: Start difference. First operand has 49 places, 38 transitions, 121 flow. Second operand 3 states and 105 transitions. [2021-06-10 23:53:21,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 231 flow [2021-06-10 23:53:21,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 55 transitions, 211 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-06-10 23:53:21,882 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 147 flow [2021-06-10 23:53:21,884 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-06-10 23:53:21,885 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2021-06-10 23:53:21,885 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 147 flow [2021-06-10 23:53:21,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-06-10 23:53:21,885 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:21,885 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:53:21,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 23:53:21,886 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:21,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:21,886 INFO L82 PathProgramCache]: Analyzing trace with hash 372642205, now seen corresponding path program 1 times [2021-06-10 23:53:21,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:21,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650118549] [2021-06-10 23:53:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:21,894 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:21,900 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:21,902 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 23:53:21,902 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 23:53:21,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 23:53:21,902 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-10 23:53:21,917 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-06-10 23:53:21,925 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,925 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,925 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,925 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,926 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,928 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,929 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,929 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,929 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,929 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,929 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,929 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,929 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,930 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,931 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,931 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,931 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,933 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,933 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,934 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,935 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,935 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:21,936 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:53:21,936 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-10 23:53:21,937 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:53:21,937 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:53:21,937 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:53:21,937 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:53:21,937 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:53:21,937 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:53:21,937 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:53:21,938 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:53:21,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 162 flow [2021-06-10 23:53:21,944 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-06-10 23:53:21,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:21,944 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 205 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. [2021-06-10 23:53:21,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 51 transitions, 162 flow [2021-06-10 23:53:21,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 51 transitions, 162 flow [2021-06-10 23:53:21,945 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:53:21,946 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 51 transitions, 162 flow [2021-06-10 23:53:21,946 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 51 transitions, 162 flow [2021-06-10 23:53:21,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 162 flow [2021-06-10 23:53:21,967 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-06-10 23:53:21,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:21,968 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 10. Compared 213 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. [2021-06-10 23:53:21,969 INFO L151 LiptonReduction]: Number of co-enabled transitions 1848 [2021-06-10 23:53:22,340 INFO L163 LiptonReduction]: Checked pairs total: 4594 [2021-06-10 23:53:22,340 INFO L165 LiptonReduction]: Total number of compositions: 6 [2021-06-10 23:53:22,341 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 396 [2021-06-10 23:53:22,357 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-06-10 23:53:22,357 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:22,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:22,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:53:22,357 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:22,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:22,358 INFO L82 PathProgramCache]: Analyzing trace with hash 388409778, now seen corresponding path program 1 times [2021-06-10 23:53:22,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:22,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278405645] [2021-06-10 23:53:22,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:53:22,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:22,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:53:22,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:22,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 23:53:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 23:53:22,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278405645] [2021-06-10 23:53:22,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:53:22,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 23:53:22,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564395709] [2021-06-10 23:53:22,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 23:53:22,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:53:22,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 23:53:22,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 23:53:22,385 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 57 [2021-06-10 23:53:22,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-06-10 23:53:22,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:53:22,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 57 [2021-06-10 23:53:22,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:53:34,978 INFO L129 PetriNetUnfolder]: 80803/109551 cut-off events. [2021-06-10 23:53:34,978 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 23:53:35,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212174 conditions, 109551 events. 80803/109551 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4866. Compared 803915 event pairs, 51919 based on Foata normal form. 0/83863 useless extension candidates. Maximal degree in co-relation 212118. Up to 74490 conditions per place. [2021-06-10 23:53:36,233 INFO L132 encePairwiseOnDemand]: 49/57 looper letters, 39 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2021-06-10 23:53:36,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 284 flow [2021-06-10 23:53:36,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 23:53:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 23:53:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2021-06-10 23:53:36,238 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7309941520467836 [2021-06-10 23:53:36,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2021-06-10 23:53:36,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2021-06-10 23:53:36,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:53:36,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2021-06-10 23:53:36,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-06-10 23:53:36,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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) [2021-06-10 23:53:36,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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) [2021-06-10 23:53:36,243 INFO L185 Difference]: Start difference. First operand has 58 places, 45 transitions, 150 flow. Second operand 3 states and 125 transitions. [2021-06-10 23:53:36,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 284 flow [2021-06-10 23:53:36,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 66 transitions, 254 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-06-10 23:53:36,245 INFO L241 Difference]: Finished difference. Result has 62 places, 51 transitions, 174 flow [2021-06-10 23:53:36,245 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2021-06-10 23:53:36,246 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2021-06-10 23:53:36,246 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 174 flow [2021-06-10 23:53:36,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-06-10 23:53:36,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:36,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:53:36,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 23:53:36,246 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash -577947408, now seen corresponding path program 1 times [2021-06-10 23:53:36,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:36,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146645486] [2021-06-10 23:53:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:36,253 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 23:53:36,259 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 23:53:36,262 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 23:53:36,262 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 23:53:36,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 23:53:36,263 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-10 23:53:36,263 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-06-10 23:53:36,271 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,272 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,272 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,272 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,272 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,272 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,272 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,273 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,273 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,273 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,274 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,275 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,275 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,275 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,275 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,275 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,275 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,275 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,276 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,277 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,277 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,277 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,278 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,279 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,280 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,280 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,280 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,280 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,280 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,280 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,281 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,282 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,283 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,284 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,285 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,285 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:53:36,286 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:53:36,286 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-06-10 23:53:36,288 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:53:36,288 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:53:36,288 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:53:36,288 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:53:36,288 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:53:36,288 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:53:36,288 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:53:36,288 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:53:36,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 59 transitions, 195 flow [2021-06-10 23:53:36,295 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-06-10 23:53:36,296 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:36,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 239 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-06-10 23:53:36,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 59 transitions, 195 flow [2021-06-10 23:53:36,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 59 transitions, 195 flow [2021-06-10 23:53:36,297 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:53:36,297 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 59 transitions, 195 flow [2021-06-10 23:53:36,297 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 59 transitions, 195 flow [2021-06-10 23:53:36,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 59 transitions, 195 flow [2021-06-10 23:53:36,302 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-06-10 23:53:36,302 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:36,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 266 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-06-10 23:53:36,304 INFO L151 LiptonReduction]: Number of co-enabled transitions 2548 [2021-06-10 23:53:36,667 INFO L163 LiptonReduction]: Checked pairs total: 6252 [2021-06-10 23:53:36,667 INFO L165 LiptonReduction]: Total number of compositions: 7 [2021-06-10 23:53:36,667 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 370 [2021-06-10 23:53:36,670 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-06-10 23:53:36,670 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:53:36,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:53:36,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:53:36,670 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:53:36,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:53:36,671 INFO L82 PathProgramCache]: Analyzing trace with hash 43215056, now seen corresponding path program 1 times [2021-06-10 23:53:36,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:53:36,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762146000] [2021-06-10 23:53:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:53:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:53:36,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:36,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:53:36,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:53:36,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 23:53:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 23:53:36,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762146000] [2021-06-10 23:53:36,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:53:36,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 23:53:36,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255347542] [2021-06-10 23:53:36,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 23:53:36,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:53:36,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 23:53:36,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 23:53:36,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2021-06-10 23:53:36,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 52 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-06-10 23:53:36,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:53:36,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2021-06-10 23:53:36,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:56:35,084 INFO L129 PetriNetUnfolder]: 492663/629000 cut-off events. [2021-06-10 23:56:35,084 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 23:56:39,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1230897 conditions, 629000 events. 492663/629000 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21173. Compared 4518850 event pairs, 287331 based on Foata normal form. 0/480400 useless extension candidates. Maximal degree in co-relation 1230829. Up to 442536 conditions per place. [2021-06-10 23:56:42,332 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 46 selfloop transitions, 8 changer transitions 0/77 dead transitions. [2021-06-10 23:56:42,332 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 77 transitions, 339 flow [2021-06-10 23:56:42,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 23:56:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 23:56:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2021-06-10 23:56:42,335 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7323232323232324 [2021-06-10 23:56:42,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 145 transitions. [2021-06-10 23:56:42,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 145 transitions. [2021-06-10 23:56:42,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:56:42,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 145 transitions. [2021-06-10 23:56:42,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-06-10 23:56:42,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2021-06-10 23:56:42,337 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2021-06-10 23:56:42,337 INFO L185 Difference]: Start difference. First operand has 67 places, 52 transitions, 181 flow. Second operand 3 states and 145 transitions. [2021-06-10 23:56:42,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 77 transitions, 339 flow [2021-06-10 23:56:42,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 77 transitions, 297 flow, removed 21 selfloop flow, removed 0 redundant places. [2021-06-10 23:56:42,339 INFO L241 Difference]: Finished difference. Result has 71 places, 59 transitions, 201 flow [2021-06-10 23:56:42,340 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2021-06-10 23:56:42,340 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, 4 predicate places. [2021-06-10 23:56:42,340 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 201 flow [2021-06-10 23:56:42,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-06-10 23:56:42,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:56:42,340 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 23:56:42,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 23:56:42,340 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:56:42,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:56:42,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1663171244, now seen corresponding path program 1 times [2021-06-10 23:56:42,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:56:42,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305545103] [2021-06-10 23:56:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:56:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:56:42,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:56:42,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:56:42,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:56:42,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 23:56:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-10 23:56:42,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305545103] [2021-06-10 23:56:42,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:56:42,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 23:56:42,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187365359] [2021-06-10 23:56:42,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 23:56:42,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:56:42,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 23:56:42,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 23:56:42,355 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2021-06-10 23:56:42,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-06-10 23:56:42,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:56:42,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2021-06-10 23:56:42,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 00:02:26,386 INFO L129 PetriNetUnfolder]: 658792/850429 cut-off events. [2021-06-11 00:02:26,399 INFO L130 PetriNetUnfolder]: For 267170/267170 co-relation queries the response was YES. [2021-06-11 00:02:31,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2003039 conditions, 850429 events. 658792/850429 cut-off events. For 267170/267170 co-relation queries the response was YES. Maximal size of possible extension queue 29955. Compared 6539423 event pairs, 385385 based on Foata normal form. 0/673135 useless extension candidates. Maximal degree in co-relation 1722441. Up to 602130 conditions per place. [2021-06-11 00:02:36,165 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 53 selfloop transitions, 14 changer transitions 0/90 dead transitions. [2021-06-11 00:02:36,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 90 transitions, 439 flow [2021-06-11 00:02:36,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 00:02:36,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 00:02:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2021-06-11 00:02:36,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7323232323232324 [2021-06-11 00:02:36,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 145 transitions. [2021-06-11 00:02:36,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 145 transitions. [2021-06-11 00:02:36,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 00:02:36,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 145 transitions. [2021-06-11 00:02:36,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-06-11 00:02:36,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2021-06-11 00:02:36,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2021-06-11 00:02:36,169 INFO L185 Difference]: Start difference. First operand has 71 places, 59 transitions, 201 flow. Second operand 3 states and 145 transitions. [2021-06-11 00:02:36,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 90 transitions, 439 flow [2021-06-11 00:05:39,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 90 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 00:05:39,339 INFO L241 Difference]: Finished difference. Result has 73 places, 71 transitions, 313 flow [2021-06-11 00:05:39,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2021-06-11 00:05:39,340 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, 6 predicate places. [2021-06-11 00:05:39,340 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 313 flow [2021-06-11 00:05:39,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-06-11 00:05:39,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 00:05:39,340 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 00:05:39,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 00:05:39,340 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 00:05:39,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 00:05:39,341 INFO L82 PathProgramCache]: Analyzing trace with hash 277133877, now seen corresponding path program 1 times [2021-06-11 00:05:39,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 00:05:39,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377421819] [2021-06-11 00:05:39,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 00:05:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 00:05:39,344 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 00:05:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 00:05:39,346 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 00:05:39,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-11 00:05:39,348 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-11 00:05:39,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 00:05:39,348 WARN L342 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-11 00:05:39,349 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-06-11 00:05:39,357 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,358 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,359 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,361 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,362 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,363 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,364 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,364 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,364 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,364 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,365 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,366 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,366 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,367 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,368 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,368 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,369 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 00:05:39,370 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 00:05:39,370 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-06-11 00:05:39,371 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 00:05:39,371 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 00:05:39,371 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 00:05:39,371 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 00:05:39,371 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 00:05:39,371 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 00:05:39,371 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 00:05:39,371 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 00:05:39,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 67 transitions, 230 flow [2021-06-11 00:05:39,377 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-06-11 00:05:39,377 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 00:05:39,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 295 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-06-11 00:05:39,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 67 transitions, 230 flow [2021-06-11 00:05:39,378 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 67 transitions, 230 flow [2021-06-11 00:05:39,378 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 00:05:39,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 67 transitions, 230 flow [2021-06-11 00:05:39,379 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 67 transitions, 230 flow [2021-06-11 00:05:39,379 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 67 transitions, 230 flow [2021-06-11 00:05:39,384 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-06-11 00:05:39,384 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 00:05:39,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 303 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-06-11 00:05:39,386 INFO L151 LiptonReduction]: Number of co-enabled transitions 3360 [2021-06-11 00:05:39,707 INFO L163 LiptonReduction]: Checked pairs total: 8602 [2021-06-11 00:05:39,708 INFO L165 LiptonReduction]: Total number of compositions: 8 [2021-06-11 00:05:39,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 330 [2021-06-11 00:05:39,714 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-06-11 00:05:39,714 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 00:05:39,715 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 00:05:39,715 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 00:05:39,715 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 00:05:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 00:05:39,715 INFO L82 PathProgramCache]: Analyzing trace with hash -604729350, now seen corresponding path program 1 times [2021-06-11 00:05:39,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 00:05:39,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552918370] [2021-06-11 00:05:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 00:05:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 00:05:39,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 00:05:39,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 00:05:39,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 00:05:39,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 00:05:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 00:05:39,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552918370] [2021-06-11 00:05:39,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 00:05:39,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 00:05:39,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475085275] [2021-06-11 00:05:39,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 00:05:39,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 00:05:39,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 00:05:39,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 00:05:39,755 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 75 [2021-06-11 00:05:39,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-06-11 00:05:39,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 00:05:39,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 75 [2021-06-11 00:05:39,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-06-11 00:06:25,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 00:06:25,529 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 00:06:25,530 WARN L545 AbstractCegarLoop]: Verification canceled [2021-06-11 00:06:25,532 WARN L224 ceAbstractionStarter]: Timeout [2021-06-11 00:06:25,532 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 12:06:25 BasicIcfg [2021-06-11 00:06:25,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 00:06:25,533 INFO L168 Benchmark]: Toolchain (without parser) took 787698.88 ms. Allocated memory was 362.8 MB in the beginning and 13.9 GB in the end (delta: 13.6 GB). Free memory was 342.3 MB in the beginning and 11.3 GB in the end (delta: -11.0 GB). Peak memory consumption was 9.7 GB. Max. memory is 16.0 GB. [2021-06-11 00:06:25,533 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 362.8 MB. Free memory was 343.4 MB in the beginning and 343.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 00:06:25,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.42 ms. Allocated memory is still 362.8 MB. Free memory was 342.3 MB in the beginning and 340.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 00:06:25,533 INFO L168 Benchmark]: Boogie Preprocessor took 11.89 ms. Allocated memory is still 362.8 MB. Free memory was 340.8 MB in the beginning and 339.9 MB in the end (delta: 933.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 00:06:25,534 INFO L168 Benchmark]: RCFGBuilder took 204.94 ms. Allocated memory is still 362.8 MB. Free memory was 339.9 MB in the beginning and 330.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-11 00:06:25,534 INFO L168 Benchmark]: TraceAbstraction took 787449.99 ms. Allocated memory was 362.8 MB in the beginning and 13.9 GB in the end (delta: 13.6 GB). Free memory was 330.1 MB in the beginning and 11.3 GB in the end (delta: -11.0 GB). Peak memory consumption was 9.7 GB. Max. memory is 16.0 GB. [2021-06-11 00:06:25,535 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 0.13 ms. Allocated memory is still 362.8 MB. Free memory was 343.4 MB in the beginning and 343.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.42 ms. Allocated memory is still 362.8 MB. Free memory was 342.3 MB in the beginning and 340.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.89 ms. Allocated memory is still 362.8 MB. Free memory was 340.8 MB in the beginning and 339.9 MB in the end (delta: 933.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 204.94 ms. Allocated memory is still 362.8 MB. Free memory was 339.9 MB in the beginning and 330.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 787449.99 ms. Allocated memory was 362.8 MB in the beginning and 13.9 GB in the end (delta: 13.6 GB). Free memory was 330.1 MB in the beginning and 11.3 GB in the end (delta: -11.0 GB). Peak memory consumption was 9.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 502.6ms, 14 PlacesBefore, 10 PlacesAfterwards, 11 TransitionsBefore, 7 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 16, positive: 6, positive conditional: 0, positive unconditional: 6, 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): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.1ms, 24 PlacesBefore, 22 PlacesAfterwards, 19 TransitionsBefore, 17 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 360 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 81, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 81, positive: 65, positive conditional: 0, positive unconditional: 65, 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: 81, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 144, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 81, unknown conditional: 0, unknown unconditional: 81] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.7ms, 34 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 24 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1030 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 225, positive: 164, positive conditional: 0, positive unconditional: 164, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 127, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 127, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 127, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 225, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 127, unknown conditional: 0, unknown unconditional: 127] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 198.3ms, 44 PlacesBefore, 40 PlacesAfterwards, 35 TransitionsBefore, 31 TransitionsAfterwards, 784 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1938 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 539, positive: 459, positive conditional: 0, positive unconditional: 459, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 372, positive: 325, positive conditional: 0, positive unconditional: 325, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 372, positive: 325, positive conditional: 0, positive unconditional: 325, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 372, positive: 316, positive conditional: 0, positive unconditional: 316, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 539, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 372, unknown conditional: 0, unknown unconditional: 372] , Statistics on independence cache: Total cache size (in pairs): 440, Positive cache size: 393, Positive conditional cache size: 0, Positive unconditional cache size: 393, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 202.4ms, 54 PlacesBefore, 49 PlacesAfterwards, 43 TransitionsBefore, 38 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 3194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 681, positive: 580, positive conditional: 0, positive unconditional: 580, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 443, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 443, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 443, positive: 384, positive conditional: 0, positive unconditional: 384, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 140, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 681, positive: 189, positive conditional: 0, positive unconditional: 189, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 443, unknown conditional: 0, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 517, Positive cache size: 465, Positive conditional cache size: 0, Positive unconditional cache size: 465, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 394.6ms, 64 PlacesBefore, 58 PlacesAfterwards, 51 TransitionsBefore, 45 TransitionsAfterwards, 1848 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 4594 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 695, positive: 577, positive conditional: 0, positive unconditional: 577, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 461, positive: 401, positive conditional: 0, positive unconditional: 401, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 461, positive: 401, positive conditional: 0, positive unconditional: 401, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 461, positive: 381, positive conditional: 0, positive unconditional: 381, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 289, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 249, negative conditional: 0, negative unconditional: 249, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 695, positive: 176, positive conditional: 0, positive unconditional: 176, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 461, unknown conditional: 0, unknown unconditional: 461] , Statistics on independence cache: Total cache size (in pairs): 517, Positive cache size: 457, Positive conditional cache size: 0, Positive unconditional cache size: 457, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 370.2ms, 74 PlacesBefore, 67 PlacesAfterwards, 59 TransitionsBefore, 52 TransitionsAfterwards, 2548 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 6252 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 974, positive: 839, positive conditional: 0, positive unconditional: 839, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 723, positive: 646, positive conditional: 0, positive unconditional: 646, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 723, positive: 646, positive conditional: 0, positive unconditional: 646, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 723, positive: 628, positive conditional: 0, positive unconditional: 628, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 95, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 188, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 165, negative conditional: 0, negative unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 974, positive: 193, positive conditional: 0, positive unconditional: 193, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 723, unknown conditional: 0, unknown unconditional: 723] , Statistics on independence cache: Total cache size (in pairs): 800, Positive cache size: 723, Positive conditional cache size: 0, Positive unconditional cache size: 723, Negative cache size: 77, Negative conditional cache size: 0, Negative unconditional cache size: 77 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 328.9ms, 84 PlacesBefore, 76 PlacesAfterwards, 67 TransitionsBefore, 59 TransitionsAfterwards, 3360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 8602 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1553, positive: 1393, positive conditional: 0, positive unconditional: 1393, negative: 160, negative conditional: 0, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1150, positive: 1039, positive conditional: 0, positive unconditional: 1039, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1150, positive: 1039, positive conditional: 0, positive unconditional: 1039, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1150, positive: 1019, positive conditional: 0, positive unconditional: 1019, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 131, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 246, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 224, negative conditional: 0, negative unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1553, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 1150, unknown conditional: 0, unknown unconditional: 1150] , Statistics on independence cache: Total cache size (in pairs): 1277, Positive cache size: 1166, Positive conditional cache size: 0, Positive unconditional cache size: 1166, Negative cache size: 111, Negative conditional cache size: 0, Negative unconditional cache size: 111 - TimeoutResultAtElement [Line: 22]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 22). Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 34/75 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 528684 conditions, 270257 events (219983/270256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 47479. Compared 2003339 event pairs, 162801 based on Foata normal form. 0/270705 useless extension candidates. Maximal degree in co-relation 528603. Up to 206932 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 locations, 1 error locations. Started 8 CEGAR loops. EmptinessCheckTime: 35.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 787196.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 784451.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2372.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 89 SDslu, 0 SDs, 0 SdLazy, 244 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.1ms SsaConstructionTime, 41.4ms SatisfiabilityAnalysisTime, 90.5ms InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 1/1 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