/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/weaver-benchmarks/generated/chl/exp-term-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 05:07:49,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 05:07:49,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 05:07:49,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 05:07:49,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 05:07:49,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 05:07:49,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 05:07:49,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 05:07:49,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 05:07:49,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 05:07:49,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 05:07:49,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 05:07:49,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 05:07:49,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 05:07:49,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 05:07:49,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 05:07:49,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 05:07:49,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 05:07:49,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 05:07:49,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 05:07:49,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 05:07:49,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 05:07:49,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 05:07:49,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 05:07:49,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 05:07:49,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 05:07:49,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 05:07:49,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 05:07:49,618 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 05:07:49,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 05:07:49,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 05:07:49,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 05:07:49,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 05:07:49,680 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 05:07:49,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 05:07:49,681 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 05:07:49,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 05:07:49,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 05:07:49,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 05:07:49,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 05:07:49,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 05:07:49,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 05:07:49,683 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 05:07:49,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 05:07:49,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 05:07:49,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 05:07:49,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 05:07:49,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 05:07:49,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 05:07:49,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 05:07:49,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:07:49,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 05:07:49,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 05:07:49,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 05:07:49,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 05:07:49,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 05:07:49,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 05:07:49,688 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 05:07:49,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 05:07:49,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 05:07:50,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 05:07:50,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 05:07:50,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 05:07:50,166 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 05:07:50,168 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 05:07:50,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/exp-term-symm.wvr.bpl [2021-04-29 05:07:50,170 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/exp-term-symm.wvr.bpl' [2021-04-29 05:07:50,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 05:07:50,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 05:07:50,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 05:07:50,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 05:07:50,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 05:07:50,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 05:07:50,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 05:07:50,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 05:07:50,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 05:07:50,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/1) ... [2021-04-29 05:07:50,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 05:07:50,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 05:07:50,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 05:07:50,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 05:07:50,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (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 05:07:50,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 05:07:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 05:07:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 05:07:50,503 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 05:07:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 05:07:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 05:07:50,504 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 05:07:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 05:07:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 05:07:50,506 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 05:07:50,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 05:07:50,713 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 05:07:50,715 INFO L202 PluginConnector]: Adding new model exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:07:50 BoogieIcfgContainer [2021-04-29 05:07:50,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 05:07:50,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 05:07:50,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 05:07:50,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 05:07:50,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:07:50" (1/2) ... [2021-04-29 05:07:50,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d97d05b and model type exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 05:07:50, skipping insertion in model container [2021-04-29 05:07:50,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:07:50" (2/2) ... [2021-04-29 05:07:50,724 INFO L111 eAbstractionObserver]: Analyzing ICFG exp-term-symm.wvr.bpl [2021-04-29 05:07:50,731 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 05:07:50,736 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 05:07:50,737 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 05:07:50,772 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-04-29 05:07:50,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 05:07:50,826 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 05:07:50,826 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 05:07:50,826 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 05:07:50,827 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 05:07:50,827 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 05:07:50,827 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 05:07:50,827 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 05:07:50,827 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 05:07:50,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 44 flow [2021-04-29 05:07:50,890 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-04-29 05:07:50,890 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:07:50,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 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. [2021-04-29 05:07:50,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 14 transitions, 44 flow [2021-04-29 05:07:50,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 17 places, 10 transitions, 32 flow [2021-04-29 05:07:50,908 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:07:50,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 10 transitions, 32 flow [2021-04-29 05:07:50,963 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 10 transitions, 32 flow [2021-04-29 05:07:50,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 10 transitions, 32 flow [2021-04-29 05:07:50,981 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-04-29 05:07:50,981 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:07:50,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 10 events. 0/10 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:07:50,986 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 05:07:51,064 INFO L158 LiptonReduction]: Checked pairs total: 6 [2021-04-29 05:07:51,065 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 05:07:51,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 162 [2021-04-29 05:07:51,092 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-04-29 05:07:51,092 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:07:51,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:07:51,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:07:51,097 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:07:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:07:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1663540027, now seen corresponding path program 1 times [2021-04-29 05:07:51,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:07:51,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604941779] [2021-04-29 05:07:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:07:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:07:51,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:07:51,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:07:51,516 INFO L142 QuantifierPusher]: treesize reduction 142, result has 31.1 percent of original size [2021-04-29 05:07:51,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-04-29 05:07:51,682 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2021-04-29 05:07:51,730 INFO L142 QuantifierPusher]: treesize reduction 111, result has 39.3 percent of original size [2021-04-29 05:07:51,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-04-29 05:07:51,845 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 05:07:51,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604941779] [2021-04-29 05:07:51,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:07:51,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:07:51,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001440471] [2021-04-29 05:07:51,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 05:07:51,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:07:51,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 05:07:51,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 05:07:51,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 17 [2021-04-29 05:07:51,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 10 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 05:07:51,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:07:51,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 17 [2021-04-29 05:07:51,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:07:52,008 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-04-29 05:07:52,008 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-29 05:07:52,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 21 events. 0/21 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 72 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-04-29 05:07:52,010 INFO L132 encePairwiseOnDemand]: 11/17 looper letters, 2 selfloop transitions, 1 changer transitions 5/12 dead transitions. [2021-04-29 05:07:52,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 12 transitions, 52 flow [2021-04-29 05:07:52,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 05:07:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 05:07:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2021-04-29 05:07:52,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7352941176470589 [2021-04-29 05:07:52,024 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 50 transitions. [2021-04-29 05:07:52,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 50 transitions. [2021-04-29 05:07:52,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:07:52,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 50 transitions. [2021-04-29 05:07:52,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 05:07:52,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 05:07:52,036 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 05:07:52,039 INFO L185 Difference]: Start difference. First operand has 17 places, 10 transitions, 32 flow. Second operand 4 states and 50 transitions. [2021-04-29 05:07:52,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 12 transitions, 52 flow [2021-04-29 05:07:52,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 12 transitions, 44 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 05:07:52,045 INFO L241 Difference]: Finished difference. Result has 18 places, 7 transitions, 25 flow [2021-04-29 05:07:52,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=25, PETRI_PLACES=18, PETRI_TRANSITIONS=7} [2021-04-29 05:07:52,048 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 1 predicate places. [2021-04-29 05:07:52,049 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:07:52,049 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 7 transitions, 25 flow [2021-04-29 05:07:52,050 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 7 transitions, 25 flow [2021-04-29 05:07:52,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 7 transitions, 25 flow [2021-04-29 05:07:52,054 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-04-29 05:07:52,054 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 05:07:52,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 9 events. 0/9 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:07:52,055 INFO L146 LiptonReduction]: Number of co-enabled transitions 2 [2021-04-29 05:07:52,056 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:07:52,056 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:07:52,056 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-29 05:07:52,058 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 25 flow [2021-04-29 05:07:52,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 05:07:52,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:07:52,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:07:52,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 05:07:52,059 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:07:52,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:07:52,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1664376097, now seen corresponding path program 2 times [2021-04-29 05:07:52,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:07:52,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173337582] [2021-04-29 05:07:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:07:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:07:52,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:07:52,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:07:52,267 INFO L142 QuantifierPusher]: treesize reduction 144, result has 31.1 percent of original size [2021-04-29 05:07:52,273 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.9 percent of original size 63 [2021-04-29 05:07:52,365 INFO L142 QuantifierPusher]: treesize reduction 173, result has 31.3 percent of original size [2021-04-29 05:07:52,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-04-29 05:07:52,400 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 05:07:52,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173337582] [2021-04-29 05:07:52,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:07:52,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:07:52,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129081056] [2021-04-29 05:07:52,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 05:07:52,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:07:52,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 05:07:52,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 05:07:52,405 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 17 [2021-04-29 05:07:52,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 7 transitions, 25 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 05:07:52,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:07:52,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 17 [2021-04-29 05:07:52,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:07:52,465 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-04-29 05:07:52,465 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2021-04-29 05:07:52,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 8 events. 0/8 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:07:52,466 INFO L132 encePairwiseOnDemand]: 14/17 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2021-04-29 05:07:52,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 7 transitions, 32 flow [2021-04-29 05:07:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 05:07:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 05:07:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2021-04-29 05:07:52,467 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2021-04-29 05:07:52,468 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 44 transitions. [2021-04-29 05:07:52,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 44 transitions. [2021-04-29 05:07:52,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:07:52,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 44 transitions. [2021-04-29 05:07:52,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 05:07:52,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 05:07:52,470 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 05:07:52,471 INFO L185 Difference]: Start difference. First operand has 14 places, 7 transitions, 25 flow. Second operand 4 states and 44 transitions. [2021-04-29 05:07:52,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 7 transitions, 32 flow [2021-04-29 05:07:52,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 05:07:52,472 INFO L241 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2021-04-29 05:07:52,472 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2021-04-29 05:07:52,473 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, -2 predicate places. [2021-04-29 05:07:52,473 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:07:52,473 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 0 transitions, 0 flow [2021-04-29 05:07:52,474 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 0 transitions, 0 flow [2021-04-29 05:07:52,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 05:07:52,474 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 05:07:52,474 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 05:07:52,474 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 05:07:52,474 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 05:07:52,475 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:07:52,475 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:07:52,475 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 05:07:52,477 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 05:07:52,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 05:07:52,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 05:07:52,482 INFO L202 PluginConnector]: Adding new model exp-term-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 05:07:52 BasicIcfg [2021-04-29 05:07:52,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 05:07:52,483 INFO L168 Benchmark]: Toolchain (without parser) took 2257.17 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 214.8 MB in the end (delta: 55.9 MB). Peak memory consumption was 53.8 MB. Max. memory is 16.0 GB. [2021-04-29 05:07:52,484 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:07:52,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.39 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 283.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 05:07:52,486 INFO L168 Benchmark]: Boogie Preprocessor took 28.85 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 282.5 MB in the end (delta: 835.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:07:52,486 INFO L168 Benchmark]: RCFGBuilder took 341.67 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 280.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 05:07:52,487 INFO L168 Benchmark]: TraceAbstraction took 1765.06 ms. Allocated memory is still 302.0 MB. Free memory was 279.6 MB in the beginning and 214.8 MB in the end (delta: 64.9 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.0 GB. [2021-04-29 05:07:52,490 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 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.39 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 283.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.85 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 282.5 MB in the end (delta: 835.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 341.67 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 280.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1765.06 ms. Allocated memory is still 302.0 MB. Free memory was 279.6 MB in the beginning and 214.8 MB in the end (delta: 64.9 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 102.2ms, 17 PlacesBefore, 17 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, 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: 6.1ms, 18 PlacesBefore, 14 PlacesAfterwards, 7 TransitionsBefore, 7 TransitionsAfterwards, 2 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): 6, Positive cache size: 6, Positive conditional cache size: 6, 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: 1.2ms, 15 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): 6, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1657.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 246.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 255.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 5 SDslu, 0 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 487.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 7.4ms SsaConstructionTime, 96.5ms SatisfiabilityAnalysisTime, 874.4ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...