/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/container-trans.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 15:35:46,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 15:35:46,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 15:35:46,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 15:35:46,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 15:35:46,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 15:35:46,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 15:35:46,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 15:35:46,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 15:35:46,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 15:35:46,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 15:35:46,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 15:35:46,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 15:35:46,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 15:35:46,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 15:35:46,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 15:35:46,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 15:35:46,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 15:35:46,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 15:35:46,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 15:35:46,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2021-03-11 15:35:46,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 15:35:46,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 15:35:46,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 15:35:46,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 15:35:46,351 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 15:35:46,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 15:35:46,352 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 15:35:46,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 15:35:46,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 15:35:46,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 15:35:46,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 15:35:46,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 15:35:46,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 15:35:46,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 15:35:46,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 15:35:46,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 15:35:46,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 15:35:46,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 15:35:46,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 15:35:46,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 15:35:46,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 15:35:46,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 15:35:46,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 15:35:46,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 15:35:46,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 15:35:46,629 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 15:35:46,631 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 15:35:46,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/container-trans.wvr.bpl [2021-03-11 15:35:46,632 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/container-trans.wvr.bpl' [2021-03-11 15:35:46,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 15:35:46,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 15:35:46,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 15:35:46,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 15:35:46,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 15:35:46,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 15:35:46,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 15:35:46,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 15:35:46,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 15:35:46,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... [2021-03-11 15:35:46,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 15:35:46,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 15:35:46,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 15:35:46,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 15:35:46,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 15:35:46,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 15:35:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 15:35:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 15:35:46,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 15:35:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 15:35:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 15:35:46,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 15:35:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 15:35:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 15:35:46,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 15:35:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 15:35:46,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 15:35:46,754 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 15:35:47,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 15:35:47,007 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 15:35:47,023 INFO L202 PluginConnector]: Adding new model container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:35:47 BoogieIcfgContainer [2021-03-11 15:35:47,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 15:35:47,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 15:35:47,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 15:35:47,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 15:35:47,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:46" (1/2) ... [2021-03-11 15:35:47,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3636293 and model type container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:35:47, skipping insertion in model container [2021-03-11 15:35:47,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:35:47" (2/2) ... [2021-03-11 15:35:47,029 INFO L111 eAbstractionObserver]: Analyzing ICFG container-trans.wvr.bpl [2021-03-11 15:35:47,033 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 15:35:47,034 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 15:35:47,036 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 15:35:47,037 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 15:35:47,104 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-11 15:35:47,115 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 15:35:47,140 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 15:35:47,140 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 15:35:47,141 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 15:35:47,141 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 15:35:47,141 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 15:35:47,141 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 15:35:47,141 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 15:35:47,141 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 15:35:47,157 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 15:35:47,167 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:47,173 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:47,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:47,207 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-11 15:35:47,208 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 15:35:47,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 15:35:47,211 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-11 15:35:47,327 INFO L131 LiptonReduction]: Checked pairs total: 54 [2021-03-11 15:35:47,328 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-11 15:35:47,336 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 14 transitions, 52 flow [2021-03-11 15:35:47,345 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:47,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:47,353 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:47,353 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:47,353 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:47,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:47,360 INFO L82 PathProgramCache]: Analyzing trace with hash 648784382, now seen corresponding path program 1 times [2021-03-11 15:35:47,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:47,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834680666] [2021-03-11 15:35:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:47,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:47,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:47,829 INFO L142 QuantifierPusher]: treesize reduction 2158, result has 21.3 percent of original size [2021-03-11 15:35:47,842 INFO L147 QuantifierPusher]: treesize reduction 113, result has 80.6 percent of original size 470 [2021-03-11 15:35:48,011 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 33 [2021-03-11 15:35:48,170 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 129 [2021-03-11 15:35:48,172 INFO L142 QuantifierPusher]: treesize reduction 17130, result has 13.3 percent of original size [2021-03-11 15:35:48,192 INFO L147 QuantifierPusher]: treesize reduction 1126, result has 57.2 percent of original size 1506 [2021-03-11 15:35:48,546 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 44 [2021-03-11 15:35:48,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:48,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 15:35:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:48,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834680666] [2021-03-11 15:35:48,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:48,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:48,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704557409] [2021-03-11 15:35:48,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:48,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:48,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:48,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:48,578 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:48,754 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-03-11 15:35:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:48,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 15:35:48,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:48,760 INFO L225 Difference]: With dead ends: 36 [2021-03-11 15:35:48,761 INFO L226 Difference]: Without dead ends: 28 [2021-03-11 15:35:48,761 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 671.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:48,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-03-11 15:35:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2021-03-11 15:35:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:48,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2021-03-11 15:35:48,780 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 34 transitions. Word has length 10 [2021-03-11 15:35:48,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:48,780 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-03-11 15:35:48,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2021-03-11 15:35:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:48,781 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:48,781 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:48,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 15:35:48,781 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:48,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:48,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1563664818, now seen corresponding path program 2 times [2021-03-11 15:35:48,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:48,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735627792] [2021-03-11 15:35:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:48,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:48,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:48,997 INFO L142 QuantifierPusher]: treesize reduction 17289, result has 6.1 percent of original size [2021-03-11 15:35:49,007 INFO L147 QuantifierPusher]: treesize reduction 623, result has 44.8 percent of original size 505 [2021-03-11 15:35:49,175 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 34 [2021-03-11 15:35:49,214 INFO L142 QuantifierPusher]: treesize reduction 8666, result has 4.5 percent of original size [2021-03-11 15:35:49,218 INFO L147 QuantifierPusher]: treesize reduction 195, result has 52.8 percent of original size 218 [2021-03-11 15:35:49,390 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 46 [2021-03-11 15:35:49,396 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.7 percent of original size [2021-03-11 15:35:49,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 15:35:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:49,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735627792] [2021-03-11 15:35:49,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:49,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:49,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841577413] [2021-03-11 15:35:49,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:49,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:49,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:49,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:49,417 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:49,578 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2021-03-11 15:35:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 15:35:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:49,579 INFO L225 Difference]: With dead ends: 34 [2021-03-11 15:35:49,579 INFO L226 Difference]: Without dead ends: 24 [2021-03-11 15:35:49,580 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 496.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:49,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-03-11 15:35:49,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-03-11 15:35:49,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-03-11 15:35:49,582 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 10 [2021-03-11 15:35:49,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:49,583 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-03-11 15:35:49,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:49,583 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-03-11 15:35:49,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:49,583 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:49,583 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:49,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 15:35:49,583 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:49,584 INFO L82 PathProgramCache]: Analyzing trace with hash -29523470, now seen corresponding path program 3 times [2021-03-11 15:35:49,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:49,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193080343] [2021-03-11 15:35:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:49,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:49,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:49,723 INFO L142 QuantifierPusher]: treesize reduction 14222, result has 10.5 percent of original size [2021-03-11 15:35:49,732 INFO L147 QuantifierPusher]: treesize reduction 786, result has 53.1 percent of original size 891 [2021-03-11 15:35:49,887 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 35 [2021-03-11 15:35:49,981 INFO L142 QuantifierPusher]: treesize reduction 10433, result has 28.5 percent of original size [2021-03-11 15:35:49,999 INFO L147 QuantifierPusher]: treesize reduction 1403, result has 66.2 percent of original size 2746 [2021-03-11 15:35:50,312 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 48 [2021-03-11 15:35:50,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:50,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 15:35:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:50,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193080343] [2021-03-11 15:35:50,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:50,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:50,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970562711] [2021-03-11 15:35:50,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:50,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:50,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:50,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:50,328 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:50,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:50,502 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2021-03-11 15:35:50,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:50,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 15:35:50,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:50,503 INFO L225 Difference]: With dead ends: 28 [2021-03-11 15:35:50,503 INFO L226 Difference]: Without dead ends: 20 [2021-03-11 15:35:50,503 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 628.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:50,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-03-11 15:35:50,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-03-11 15:35:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-03-11 15:35:50,505 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2021-03-11 15:35:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:50,505 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-03-11 15:35:50,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-03-11 15:35:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:50,506 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:50,506 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:50,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 15:35:50,506 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:50,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:50,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1774383514, now seen corresponding path program 4 times [2021-03-11 15:35:50,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:50,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715692314] [2021-03-11 15:35:50,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:50,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:50,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:50,569 INFO L142 QuantifierPusher]: treesize reduction 3803, result has 24.0 percent of original size [2021-03-11 15:35:50,576 INFO L147 QuantifierPusher]: treesize reduction 624, result has 48.0 percent of original size 576 [2021-03-11 15:35:50,777 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 40 [2021-03-11 15:35:50,787 INFO L142 QuantifierPusher]: treesize reduction 721, result has 28.0 percent of original size [2021-03-11 15:35:50,789 INFO L147 QuantifierPusher]: treesize reduction 57, result has 79.6 percent of original size 223 [2021-03-11 15:35:50,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:50,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 15:35:50,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:50,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715692314] [2021-03-11 15:35:50,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:50,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:50,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100845369] [2021-03-11 15:35:50,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:50,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:50,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:50,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:50,905 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:51,023 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-03-11 15:35:51,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:51,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 15:35:51,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:51,024 INFO L225 Difference]: With dead ends: 20 [2021-03-11 15:35:51,024 INFO L226 Difference]: Without dead ends: 13 [2021-03-11 15:35:51,024 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 409.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-03-11 15:35:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-03-11 15:35:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-03-11 15:35:51,026 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2021-03-11 15:35:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:51,026 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-03-11 15:35:51,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-03-11 15:35:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:51,026 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:51,027 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:51,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 15:35:51,027 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:51,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:51,027 INFO L82 PathProgramCache]: Analyzing trace with hash 817106226, now seen corresponding path program 5 times [2021-03-11 15:35:51,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:51,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111632552] [2021-03-11 15:35:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:51,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:51,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:51,160 INFO L142 QuantifierPusher]: treesize reduction 9928, result has 15.8 percent of original size [2021-03-11 15:35:51,168 INFO L147 QuantifierPusher]: treesize reduction 229, result has 87.7 percent of original size 1635 [2021-03-11 15:35:51,495 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 55 [2021-03-11 15:35:51,507 INFO L142 QuantifierPusher]: treesize reduction 1509, result has 35.1 percent of original size [2021-03-11 15:35:51,514 INFO L147 QuantifierPusher]: treesize reduction 168, result has 79.4 percent of original size 649 [2021-03-11 15:35:51,702 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 48 [2021-03-11 15:35:51,706 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 15:35:51,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 15:35:51,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:51,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111632552] [2021-03-11 15:35:51,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:51,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:51,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925309369] [2021-03-11 15:35:51,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:51,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:51,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:51,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:51,726 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:51,963 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2021-03-11 15:35:52,200 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2021-03-11 15:35:52,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:52,205 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-03-11 15:35:52,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:52,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 15:35:52,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:52,206 INFO L225 Difference]: With dead ends: 17 [2021-03-11 15:35:52,206 INFO L226 Difference]: Without dead ends: 12 [2021-03-11 15:35:52,206 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 981.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-03-11 15:35:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-03-11 15:35:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-03-11 15:35:52,208 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2021-03-11 15:35:52,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:52,208 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-03-11 15:35:52,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:52,208 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-03-11 15:35:52,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:52,208 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:52,208 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:52,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 15:35:52,209 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:52,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:52,209 INFO L82 PathProgramCache]: Analyzing trace with hash 900223116, now seen corresponding path program 6 times [2021-03-11 15:35:52,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:52,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639630291] [2021-03-11 15:35:52,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:52,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:52,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:52,293 INFO L142 QuantifierPusher]: treesize reduction 9928, result has 15.8 percent of original size [2021-03-11 15:35:52,300 INFO L147 QuantifierPusher]: treesize reduction 229, result has 87.7 percent of original size 1635 [2021-03-11 15:35:52,621 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 55 [2021-03-11 15:35:52,633 INFO L142 QuantifierPusher]: treesize reduction 1460, result has 37.2 percent of original size [2021-03-11 15:35:52,636 INFO L147 QuantifierPusher]: treesize reduction 149, result has 82.8 percent of original size 716 [2021-03-11 15:35:52,813 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 49 [2021-03-11 15:35:52,814 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 15:35:52,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 15:35:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:35:52,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639630291] [2021-03-11 15:35:52,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:52,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:52,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083192799] [2021-03-11 15:35:52,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:52,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:52,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:52,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:52,831 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:53,085 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2021-03-11 15:35:53,301 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2021-03-11 15:35:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:53,302 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-03-11 15:35:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:53,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 15:35:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:53,303 INFO L225 Difference]: With dead ends: 11 [2021-03-11 15:35:53,303 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 15:35:53,303 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 964.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 15:35:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 15:35:53,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:53,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 15:35:53,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-03-11 15:35:53,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:53,304 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 15:35:53,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:35:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 15:35:53,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 15:35:53,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 15:35:53,307 INFO L202 PluginConnector]: Adding new model container-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:35:53 BasicIcfg [2021-03-11 15:35:53,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 15:35:53,308 INFO L168 Benchmark]: Toolchain (without parser) took 6647.38 ms. Allocated memory was 255.9 MB in the beginning and 513.8 MB in the end (delta: 257.9 MB). Free memory was 236.5 MB in the beginning and 423.0 MB in the end (delta: -186.4 MB). Peak memory consumption was 71.9 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:53,309 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 15:35:53,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.55 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:53,309 INFO L168 Benchmark]: Boogie Preprocessor took 13.99 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:53,309 INFO L168 Benchmark]: RCFGBuilder took 324.38 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 233.5 MB in the end (delta: 31.4 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:53,310 INFO L168 Benchmark]: TraceAbstraction took 6282.58 ms. Allocated memory was 255.9 MB in the beginning and 513.8 MB in the end (delta: 257.9 MB). Free memory was 232.8 MB in the beginning and 423.0 MB in the end (delta: -190.2 MB). Peak memory consumption was 67.0 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:53,313 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 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.55 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.99 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 324.38 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 233.5 MB in the end (delta: 31.4 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6282.58 ms. Allocated memory was 255.9 MB in the beginning and 513.8 MB in the end (delta: 257.9 MB). Free memory was 232.8 MB in the beginning and 423.0 MB in the end (delta: -190.2 MB). Peak memory consumption was 67.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 154.7ms, 29 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, 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: 34, positive: 34, positive conditional: 0, positive unconditional: 34, 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: 54, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 34, unknown conditional: 0, unknown unconditional: 34] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 68]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6167.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 9.2ms, AutomataDifference: 1603.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 203.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 91 SDslu, 106 SDs, 0 SdLazy, 80 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4153.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.8ms SsaConstructionTime, 189.1ms SatisfiabilityAnalysisTime, 4038.9ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...