/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/sum_invariant.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:54:07,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:54:07,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:54:07,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:54:07,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:54:07,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:54:07,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:54:07,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:54:07,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:54:07,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:54:07,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:54:07,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:54:07,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:54:07,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:54:07,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:54:07,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:54:07,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:54:07,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:54:07,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:54:07,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:54:07,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:54:07,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:54:07,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:54:07,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:54:07,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:54:07,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:54:07,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:54:07,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:54:07,193 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:54:07,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:54:07,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:54:07,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:54:07,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:54:07,222 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:54:07,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:54:07,222 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:54:07,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:54:07,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:54:07,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:54:07,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:54:07,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:54:07,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:54:07,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:54:07,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:54:07,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:54:07,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:54:07,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:54:07,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:54:07,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:54:07,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:54:07,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:54:07,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:54:07,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:54:07,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:54:07,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:54:07,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:54:07,228 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:54:07,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:54:07,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:54:07,229 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:54:07,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:54:07,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:54:07,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:54:07,634 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 03:54:07,636 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 03:54:07,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl [2021-04-29 03:54:07,639 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl' [2021-04-29 03:54:07,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:54:07,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 03:54:07,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:54:07,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:54:07,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:54:07,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:54:07,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:54:07,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:54:07,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:54:07,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/1) ... [2021-04-29 03:54:07,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:54:07,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:54:07,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:54:07,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:54:07,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (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 [2021-04-29 03:54:07,897 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 03:54:07,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:54:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:54:07,900 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-04-29 03:54:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-04-29 03:54:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-04-29 03:54:07,902 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:54:08,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:54:08,113 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 03:54:08,118 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:54:08 BoogieIcfgContainer [2021-04-29 03:54:08,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:54:08,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:54:08,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:54:08,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:54:08,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:54:07" (1/2) ... [2021-04-29 03:54:08,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae2a9f7 and model type sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:54:08, skipping insertion in model container [2021-04-29 03:54:08,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:54:08" (2/2) ... [2021-04-29 03:54:08,131 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_invariant.bpl [2021-04-29 03:54:08,144 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:54:08,154 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:54:08,156 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:54:08,202 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,203 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,205 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,206 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,207 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,209 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,215 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,216 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,218 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,220 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,221 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,221 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,221 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,223 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,224 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,224 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,224 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,224 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,225 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,226 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,232 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,254 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,258 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,262 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:54:08,317 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-04-29 03:54:08,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 03:54:08,371 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:54:08,371 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:54:08,372 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:54:08,372 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:54:08,372 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:54:08,372 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:54:08,373 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:54:08,373 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:54:08,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 44 transitions, 156 flow [2021-04-29 03:54:08,475 INFO L129 PetriNetUnfolder]: 17/56 cut-off events. [2021-04-29 03:54:08,475 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-29 03:54:08,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 56 events. 17/56 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 140 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 49. Up to 12 conditions per place. [2021-04-29 03:54:08,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 44 transitions, 156 flow [2021-04-29 03:54:08,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 38 transitions, 136 flow [2021-04-29 03:54:08,490 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:08,508 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 38 transitions, 136 flow [2021-04-29 03:54:08,513 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 38 transitions, 136 flow [2021-04-29 03:54:08,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 136 flow [2021-04-29 03:54:08,538 INFO L129 PetriNetUnfolder]: 17/54 cut-off events. [2021-04-29 03:54:08,539 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-29 03:54:08,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 54 events. 17/54 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 49. Up to 12 conditions per place. [2021-04-29 03:54:08,543 INFO L146 LiptonReduction]: Number of co-enabled transitions 528 [2021-04-29 03:54:09,337 INFO L158 LiptonReduction]: Checked pairs total: 384 [2021-04-29 03:54:09,337 INFO L160 LiptonReduction]: Total number of compositions: 17 [2021-04-29 03:54:09,341 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 853 [2021-04-29 03:54:09,364 INFO L129 PetriNetUnfolder]: 17/54 cut-off events. [2021-04-29 03:54:09,364 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-29 03:54:09,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:09,365 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:54:09,366 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:09,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1205629892, now seen corresponding path program 1 times [2021-04-29 03:54:09,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:09,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011944921] [2021-04-29 03:54:09,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:54:09,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:54:09,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:54:09,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:54:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:54:09,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011944921] [2021-04-29 03:54:09,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:54:09,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 03:54:09,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397385508] [2021-04-29 03:54:09,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:54:09,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:54:09,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:54:09,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:54:09,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 61 [2021-04-29 03:54:09,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-04-29 03:54:09,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:54:09,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 61 [2021-04-29 03:54:09,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:54:09,601 INFO L129 PetriNetUnfolder]: 5/36 cut-off events. [2021-04-29 03:54:09,602 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-04-29 03:54:09,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 36 events. 5/36 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 88 event pairs, 0 based on Foata normal form. 7/30 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2021-04-29 03:54:09,604 INFO L132 encePairwiseOnDemand]: 57/61 looper letters, 1 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2021-04-29 03:54:09,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 112 flow [2021-04-29 03:54:09,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:54:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:54:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2021-04-29 03:54:09,619 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9453551912568307 [2021-04-29 03:54:09,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 173 transitions. [2021-04-29 03:54:09,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 173 transitions. [2021-04-29 03:54:09,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:54:09,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 173 transitions. [2021-04-29 03:54:09,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2021-04-29 03:54:09,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-04-29 03:54:09,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-04-29 03:54:09,637 INFO L185 Difference]: Start difference. First operand has 40 places, 39 transitions, 138 flow. Second operand 3 states and 173 transitions. [2021-04-29 03:54:09,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 112 flow [2021-04-29 03:54:09,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 84 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-04-29 03:54:09,644 INFO L241 Difference]: Finished difference. Result has 34 places, 33 transitions, 82 flow [2021-04-29 03:54:09,646 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2021-04-29 03:54:09,647 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2021-04-29 03:54:09,648 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:09,648 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 33 transitions, 82 flow [2021-04-29 03:54:09,648 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 33 transitions, 82 flow [2021-04-29 03:54:09,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 33 transitions, 82 flow [2021-04-29 03:54:09,662 INFO L129 PetriNetUnfolder]: 5/36 cut-off events. [2021-04-29 03:54:09,663 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:09,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 36 events. 5/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 106 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 31. Up to 6 conditions per place. [2021-04-29 03:54:09,666 INFO L146 LiptonReduction]: Number of co-enabled transitions 446 [2021-04-29 03:54:09,670 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:54:09,670 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:54:09,671 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-29 03:54:09,676 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 82 flow [2021-04-29 03:54:09,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-04-29 03:54:09,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:09,677 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:54:09,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:54:09,677 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:09,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:09,679 INFO L82 PathProgramCache]: Analyzing trace with hash 510042796, now seen corresponding path program 1 times [2021-04-29 03:54:09,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:09,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358656930] [2021-04-29 03:54:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:54:09,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:54:09,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:54:09,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:54:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:54:09,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358656930] [2021-04-29 03:54:09,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:54:09,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 03:54:09,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513564656] [2021-04-29 03:54:09,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:54:09,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:54:09,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:54:09,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:54:09,740 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 61 [2021-04-29 03:54:09,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-04-29 03:54:09,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:54:09,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 61 [2021-04-29 03:54:09,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:54:09,752 INFO L129 PetriNetUnfolder]: 1/29 cut-off events. [2021-04-29 03:54:09,752 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 03:54:09,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 29 events. 1/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 67 event pairs, 0 based on Foata normal form. 3/19 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-04-29 03:54:09,753 INFO L132 encePairwiseOnDemand]: 58/61 looper letters, 1 selfloop transitions, 1 changer transitions 7/29 dead transitions. [2021-04-29 03:54:09,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 74 flow [2021-04-29 03:54:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:54:09,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:54:09,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2021-04-29 03:54:09,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9398907103825137 [2021-04-29 03:54:09,756 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2021-04-29 03:54:09,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2021-04-29 03:54:09,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:54:09,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2021-04-29 03:54:09,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-04-29 03:54:09,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-04-29 03:54:09,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-04-29 03:54:09,761 INFO L185 Difference]: Start difference. First operand has 34 places, 33 transitions, 82 flow. Second operand 3 states and 172 transitions. [2021-04-29 03:54:09,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 74 flow [2021-04-29 03:54:09,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 73 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:54:09,763 INFO L241 Difference]: Finished difference. Result has 35 places, 22 transitions, 57 flow [2021-04-29 03:54:09,764 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2021-04-29 03:54:09,764 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -5 predicate places. [2021-04-29 03:54:09,764 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:09,765 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 22 transitions, 57 flow [2021-04-29 03:54:09,765 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 22 transitions, 57 flow [2021-04-29 03:54:09,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 57 flow [2021-04-29 03:54:09,771 INFO L129 PetriNetUnfolder]: 1/22 cut-off events. [2021-04-29 03:54:09,771 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:09,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 22 events. 1/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 50 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 20. Up to 2 conditions per place. [2021-04-29 03:54:09,772 INFO L146 LiptonReduction]: Number of co-enabled transitions 160 [2021-04-29 03:54:09,774 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:54:09,774 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:54:09,774 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-04-29 03:54:09,776 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 57 flow [2021-04-29 03:54:09,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-04-29 03:54:09,776 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:09,777 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:54:09,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:54:09,777 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:09,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:09,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2009340972, now seen corresponding path program 1 times [2021-04-29 03:54:09,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:09,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374870155] [2021-04-29 03:54:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:54:09,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:54:09,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:54:09,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:54:09,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:09,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:54:09,853 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-29 03:54:09,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 03:54:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:54:09,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374870155] [2021-04-29 03:54:09,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:54:09,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:54:09,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774363498] [2021-04-29 03:54:09,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:54:09,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:54:09,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:54:09,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:54:09,863 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 61 [2021-04-29 03:54:09,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 57 flow. Second operand has 3 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) [2021-04-29 03:54:09,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:54:09,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 61 [2021-04-29 03:54:09,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:54:09,955 INFO L129 PetriNetUnfolder]: 102/196 cut-off events. [2021-04-29 03:54:09,956 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:09,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 196 events. 102/196 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 927 event pairs, 49 based on Foata normal form. 1/125 useless extension candidates. Maximal degree in co-relation 354. Up to 85 conditions per place. [2021-04-29 03:54:09,958 INFO L132 encePairwiseOnDemand]: 57/61 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2021-04-29 03:54:09,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 105 flow [2021-04-29 03:54:09,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:54:09,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:54:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2021-04-29 03:54:09,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.639344262295082 [2021-04-29 03:54:09,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 117 transitions. [2021-04-29 03:54:09,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 117 transitions. [2021-04-29 03:54:09,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:54:09,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 117 transitions. [2021-04-29 03:54:09,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2021-04-29 03:54:09,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-04-29 03:54:09,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-04-29 03:54:09,966 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 57 flow. Second operand 3 states and 117 transitions. [2021-04-29 03:54:09,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 105 flow [2021-04-29 03:54:09,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:54:09,967 INFO L241 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2021-04-29 03:54:09,967 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2021-04-29 03:54:09,968 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -12 predicate places. [2021-04-29 03:54:09,968 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:09,968 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 0 transitions, 0 flow [2021-04-29 03:54:09,969 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 0 transitions, 0 flow [2021-04-29 03:54:09,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:54:09,969 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:54:09,969 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:09,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:54:09,970 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:54:09,970 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:54:09,970 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:54:09,971 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 03:54:09,972 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:54:09,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 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) [2021-04-29 03:54:09,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 03:54:09,977 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:54:09 BasicIcfg [2021-04-29 03:54:09,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:54:09,979 INFO L168 Benchmark]: Toolchain (without parser) took 2305.86 ms. Allocated memory was 323.0 MB in the beginning and 388.0 MB in the end (delta: 65.0 MB). Free memory was 290.7 MB in the beginning and 354.9 MB in the end (delta: -64.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 16.0 GB. [2021-04-29 03:54:09,980 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.79 ms. Allocated memory is still 323.0 MB. Free memory is still 291.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:54:09,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.31 ms. Allocated memory is still 323.0 MB. Free memory was 305.2 MB in the beginning and 303.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:54:09,981 INFO L168 Benchmark]: Boogie Preprocessor took 20.80 ms. Allocated memory is still 323.0 MB. Free memory was 303.7 MB in the beginning and 302.9 MB in the end (delta: 797.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:54:09,982 INFO L168 Benchmark]: RCFGBuilder took 326.22 ms. Allocated memory is still 323.0 MB. Free memory was 302.9 MB in the beginning and 300.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 03:54:09,983 INFO L168 Benchmark]: TraceAbstraction took 1854.64 ms. Allocated memory was 323.0 MB in the beginning and 388.0 MB in the end (delta: 65.0 MB). Free memory was 300.2 MB in the beginning and 354.9 MB in the end (delta: -54.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.0 GB. [2021-04-29 03:54:09,987 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 0.79 ms. Allocated memory is still 323.0 MB. Free memory is still 291.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.31 ms. Allocated memory is still 323.0 MB. Free memory was 305.2 MB in the beginning and 303.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.80 ms. Allocated memory is still 323.0 MB. Free memory was 303.7 MB in the beginning and 302.9 MB in the end (delta: 797.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 326.22 ms. Allocated memory is still 323.0 MB. Free memory was 302.9 MB in the beginning and 300.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1854.64 ms. Allocated memory was 323.0 MB in the beginning and 388.0 MB in the end (delta: 65.0 MB). Free memory was 300.2 MB in the beginning and 354.9 MB in the end (delta: -54.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 824.0ms, 39 PlacesBefore, 40 PlacesAfterwards, 38 TransitionsBefore, 39 TransitionsAfterwards, 528 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 17 TotalNumberOfCompositions, 384 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 384, positive: 384, positive conditional: 384, positive unconditional: 0, 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: 276, positive: 276, positive conditional: 0, positive unconditional: 276, 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: 276, positive: 276, positive conditional: 0, positive unconditional: 276, 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: 276, positive: 219, positive conditional: 0, positive unconditional: 219, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 400, positive: 400, positive conditional: 0, positive unconditional: 400, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 384, positive: 108, positive conditional: 108, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 276, unknown conditional: 276, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 276, Positive conditional cache size: 276, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.5ms, 34 PlacesBefore, 34 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 446 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 276, Positive conditional cache size: 276, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 35 PlacesBefore, 28 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 276, Positive conditional cache size: 276, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7ms, 28 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 276, Positive conditional cache size: 276, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1609.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 214.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 976.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 19 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 9, 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: 14.8ms SsaConstructionTime, 36.4ms SatisfiabilityAnalysisTime, 131.4ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...