/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 00:03:29,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 00:03:29,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 00:03:29,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 00:03:29,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-10 00:03:30,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 00:03:30,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 00:03:30,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 00:03:30,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 00:03:30,002 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 00:03:30,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 00:03:30,003 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 00:03:30,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 00:03:30,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 00:03:30,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 00:03:30,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 00:03:30,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 00:03:30,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 00:03:30,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 00:03:30,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 00:03:30,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 00:03:30,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 00:03:30,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 00:03:30,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 00:03:30,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 00:03:30,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 00:03:30,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 00:03:30,005 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-10 00:03:30,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 00:03:30,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 00:03:30,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 00:03:30,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 00:03:30,300 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 00:03:30,301 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 00:03:30,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2021-07-10 00:03:30,302 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2021-07-10 00:03:30,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 00:03:30,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 00:03:30,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 00:03:30,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 00:03:30,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 00:03:30,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 00:03:30,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 00:03:30,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 00:03:30,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 00:03:30,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/1) ... [2021-07-10 00:03:30,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 00:03:30,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 00:03:30,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 00:03:30,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 00:03:30,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (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 [2021-07-10 00:03:30,423 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 00:03:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 00:03:30,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 00:03:30,425 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 00:03:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 00:03:30,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 00:03:30,425 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 00:03:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 00:03:30,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 00:03:30,425 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 00:03:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 00:03:30,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 00:03:30,426 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-10 00:03:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-10 00:03:30,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-10 00:03:30,427 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 00:03:30,613 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 00:03:30,613 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 00:03:30,615 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:03:30 BoogieIcfgContainer [2021-07-10 00:03:30,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 00:03:30,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 00:03:30,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 00:03:30,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 00:03:30,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 12:03:30" (1/2) ... [2021-07-10 00:03:30,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232a4d38 and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 12:03:30, skipping insertion in model container [2021-07-10 00:03:30,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 12:03:30" (2/2) ... [2021-07-10 00:03:30,621 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2021-07-10 00:03:30,625 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 00:03:30,625 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 00:03:30,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 00:03:30,625 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 00:03:30,663 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-10 00:03:30,679 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-10 00:03:30,693 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 00:03:30,694 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 00:03:30,694 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 00:03:30,694 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 00:03:30,694 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 00:03:30,694 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 00:03:30,694 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 00:03:30,694 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 00:03:31,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 5269 states, 4236 states have (on average 1.5915958451369216) internal successors, (6742), 5268 states have internal predecessors, (6742), 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) [2021-07-10 00:03:31,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:31,172 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:31,173 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:31,173 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:31,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1110402912, now seen corresponding path program 1 times [2021-07-10 00:03:31,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:31,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420476834] [2021-07-10 00:03:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:31,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-10 00:03:31,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:31,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:31,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420476834] [2021-07-10 00:03:31,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420476834] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:31,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:31,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 00:03:31,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059581368] [2021-07-10 00:03:31,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 00:03:31,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:31,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 00:03:31,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:31,315 INFO L87 Difference]: Start difference. First operand has 5269 states, 4236 states have (on average 1.5915958451369216) internal successors, (6742), 5268 states have internal predecessors, (6742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:31,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:31,374 INFO L93 Difference]: Finished difference Result 4197 states and 5379 transitions. [2021-07-10 00:03:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 00:03:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:31,382 INFO L225 Difference]: With dead ends: 4197 [2021-07-10 00:03:31,382 INFO L226 Difference]: Without dead ends: 112 [2021-07-10 00:03:31,383 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-07-10 00:03:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-07-10 00:03:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.3153153153153154) internal successors, (146), 111 states have internal predecessors, (146), 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) [2021-07-10 00:03:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 146 transitions. [2021-07-10 00:03:31,420 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 146 transitions. Word has length 39 [2021-07-10 00:03:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:31,421 INFO L482 AbstractCegarLoop]: Abstraction has 112 states and 146 transitions. [2021-07-10 00:03:31,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 146 transitions. [2021-07-10 00:03:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:31,424 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:31,424 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:31,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 00:03:31,425 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:31,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:31,428 INFO L82 PathProgramCache]: Analyzing trace with hash 759275556, now seen corresponding path program 2 times [2021-07-10 00:03:31,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:31,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728562309] [2021-07-10 00:03:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:31,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-10 00:03:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:31,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:31,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728562309] [2021-07-10 00:03:31,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728562309] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:31,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:31,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 00:03:31,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691360637] [2021-07-10 00:03:31,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 00:03:31,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:31,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 00:03:31,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:31,470 INFO L87 Difference]: Start difference. First operand 112 states and 146 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:31,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:31,482 INFO L93 Difference]: Finished difference Result 100 states and 125 transitions. [2021-07-10 00:03:31,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 00:03:31,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:31,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:31,486 INFO L225 Difference]: With dead ends: 100 [2021-07-10 00:03:31,486 INFO L226 Difference]: Without dead ends: 100 [2021-07-10 00:03:31,487 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-07-10 00:03:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-07-10 00:03:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2626262626262625) internal successors, (125), 99 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 00:03:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2021-07-10 00:03:31,494 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 39 [2021-07-10 00:03:31,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:31,494 INFO L482 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2021-07-10 00:03:31,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2021-07-10 00:03:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:31,495 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:31,495 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:31,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 00:03:31,495 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:31,496 INFO L82 PathProgramCache]: Analyzing trace with hash 381206504, now seen corresponding path program 3 times [2021-07-10 00:03:31,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:31,496 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130153522] [2021-07-10 00:03:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:31,664 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:31,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:31,687 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:31,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:31,714 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:31,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:31,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:31,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:31,943 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-07-10 00:03:31,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:31,958 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:31,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:31,981 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:31,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:31,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:31,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:31,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:31,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:31,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130153522] [2021-07-10 00:03:31,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130153522] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:31,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:31,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-10 00:03:31,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219687319] [2021-07-10 00:03:31,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-10 00:03:31,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:31,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-10 00:03:31,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-07-10 00:03:31,989 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 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) [2021-07-10 00:03:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:32,668 INFO L93 Difference]: Finished difference Result 147 states and 190 transitions. [2021-07-10 00:03:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 00:03:32,669 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:32,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:32,670 INFO L225 Difference]: With dead ends: 147 [2021-07-10 00:03:32,670 INFO L226 Difference]: Without dead ends: 134 [2021-07-10 00:03:32,670 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 602.7ms TimeCoverageRelationStatistics Valid=127, Invalid=1063, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-07-10 00:03:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 113. [2021-07-10 00:03:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 112 states have internal predecessors, (144), 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) [2021-07-10 00:03:32,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2021-07-10 00:03:32,675 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 39 [2021-07-10 00:03:32,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:32,675 INFO L482 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2021-07-10 00:03:32,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 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) [2021-07-10 00:03:32,675 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2021-07-10 00:03:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:32,676 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:32,676 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:32,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-10 00:03:32,676 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:32,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:32,676 INFO L82 PathProgramCache]: Analyzing trace with hash 2061703144, now seen corresponding path program 4 times [2021-07-10 00:03:32,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:32,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571823457] [2021-07-10 00:03:32,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:32,719 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:32,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:32,723 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:32,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:32,730 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:32,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:32,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:32,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:32,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:32,877 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:32,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:32,897 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:32,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:32,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:32,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:32,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:32,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571823457] [2021-07-10 00:03:32,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571823457] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:32,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:32,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:32,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666100571] [2021-07-10 00:03:32,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:32,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:32,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:32,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:32,902 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:33,523 INFO L93 Difference]: Finished difference Result 154 states and 195 transitions. [2021-07-10 00:03:33,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 00:03:33,524 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:33,525 INFO L225 Difference]: With dead ends: 154 [2021-07-10 00:03:33,525 INFO L226 Difference]: Without dead ends: 145 [2021-07-10 00:03:33,525 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 539.9ms TimeCoverageRelationStatistics Valid=137, Invalid=1195, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-07-10 00:03:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 115. [2021-07-10 00:03:33,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.280701754385965) internal successors, (146), 114 states have internal predecessors, (146), 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) [2021-07-10 00:03:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 146 transitions. [2021-07-10 00:03:33,529 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 146 transitions. Word has length 39 [2021-07-10 00:03:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:33,529 INFO L482 AbstractCegarLoop]: Abstraction has 115 states and 146 transitions. [2021-07-10 00:03:33,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 146 transitions. [2021-07-10 00:03:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:33,530 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:33,530 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:33,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-10 00:03:33,530 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:33,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:33,530 INFO L82 PathProgramCache]: Analyzing trace with hash 626635654, now seen corresponding path program 5 times [2021-07-10 00:03:33,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:33,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689825808] [2021-07-10 00:03:33,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:33,574 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:33,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:33,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:33,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:33,585 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:33,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:33,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:33,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:33,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:33,735 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:33,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:33,757 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:33,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:33,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:33,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:33,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:33,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689825808] [2021-07-10 00:03:33,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689825808] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:33,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:33,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:33,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765649148] [2021-07-10 00:03:33,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:33,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:33,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:33,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:33,761 INFO L87 Difference]: Start difference. First operand 115 states and 146 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:34,276 INFO L93 Difference]: Finished difference Result 143 states and 183 transitions. [2021-07-10 00:03:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 00:03:34,276 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:34,277 INFO L225 Difference]: With dead ends: 143 [2021-07-10 00:03:34,277 INFO L226 Difference]: Without dead ends: 132 [2021-07-10 00:03:34,277 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 458.4ms TimeCoverageRelationStatistics Valid=129, Invalid=1131, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:34,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-07-10 00:03:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 112. [2021-07-10 00:03:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 111 states have internal predecessors, (142), 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) [2021-07-10 00:03:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 142 transitions. [2021-07-10 00:03:34,281 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 142 transitions. Word has length 39 [2021-07-10 00:03:34,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:34,281 INFO L482 AbstractCegarLoop]: Abstraction has 112 states and 142 transitions. [2021-07-10 00:03:34,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:34,281 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2021-07-10 00:03:34,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:34,282 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:34,282 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:34,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-10 00:03:34,289 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:34,290 INFO L82 PathProgramCache]: Analyzing trace with hash 124125446, now seen corresponding path program 6 times [2021-07-10 00:03:34,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:34,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130720549] [2021-07-10 00:03:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:34,318 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:34,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:34,323 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:34,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:34,329 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:34,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:34,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:34,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:34,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:34,501 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:34,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:34,522 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:34,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:34,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:34,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:34,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:34,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130720549] [2021-07-10 00:03:34,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130720549] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:34,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:34,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:34,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798953928] [2021-07-10 00:03:34,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:34,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:34,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:34,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:34,533 INFO L87 Difference]: Start difference. First operand 112 states and 142 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:35,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:35,138 INFO L93 Difference]: Finished difference Result 152 states and 190 transitions. [2021-07-10 00:03:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:35,138 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:35,139 INFO L225 Difference]: With dead ends: 152 [2021-07-10 00:03:35,139 INFO L226 Difference]: Without dead ends: 143 [2021-07-10 00:03:35,139 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 532.8ms TimeCoverageRelationStatistics Valid=129, Invalid=1131, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-07-10 00:03:35,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 122. [2021-07-10 00:03:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.28099173553719) internal successors, (155), 121 states have internal predecessors, (155), 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) [2021-07-10 00:03:35,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 155 transitions. [2021-07-10 00:03:35,143 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 155 transitions. Word has length 39 [2021-07-10 00:03:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:35,143 INFO L482 AbstractCegarLoop]: Abstraction has 122 states and 155 transitions. [2021-07-10 00:03:35,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 155 transitions. [2021-07-10 00:03:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:35,143 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:35,144 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:35,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-10 00:03:35,144 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1310942044, now seen corresponding path program 7 times [2021-07-10 00:03:35,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:35,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094245474] [2021-07-10 00:03:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:35,169 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:35,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:35,173 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:35,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:35,180 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:35,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:35,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:35,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:35,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:35,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:35,346 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:35,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:35,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:35,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:35,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094245474] [2021-07-10 00:03:35,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094245474] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:35,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:35,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:35,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51757114] [2021-07-10 00:03:35,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:35,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:35,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:35,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:35,351 INFO L87 Difference]: Start difference. First operand 122 states and 155 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:35,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:35,865 INFO L93 Difference]: Finished difference Result 151 states and 187 transitions. [2021-07-10 00:03:35,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:35,866 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:35,866 INFO L225 Difference]: With dead ends: 151 [2021-07-10 00:03:35,866 INFO L226 Difference]: Without dead ends: 142 [2021-07-10 00:03:35,867 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 447.8ms TimeCoverageRelationStatistics Valid=124, Invalid=1066, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-07-10 00:03:35,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 121. [2021-07-10 00:03:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.275) internal successors, (153), 120 states have internal predecessors, (153), 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) [2021-07-10 00:03:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 153 transitions. [2021-07-10 00:03:35,870 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 153 transitions. Word has length 39 [2021-07-10 00:03:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:35,870 INFO L482 AbstractCegarLoop]: Abstraction has 121 states and 153 transitions. [2021-07-10 00:03:35,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:35,870 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2021-07-10 00:03:35,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:35,871 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:35,871 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:35,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-10 00:03:35,871 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:35,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:35,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1229542988, now seen corresponding path program 8 times [2021-07-10 00:03:35,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:35,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751265747] [2021-07-10 00:03:35,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:35,895 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:35,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:35,920 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:35,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:35,926 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:35,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:35,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:35,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:35,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:36,053 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-07-10 00:03:36,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:36,071 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:36,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:36,090 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:36,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:36,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:36,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:36,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:36,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751265747] [2021-07-10 00:03:36,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751265747] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:36,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:36,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:36,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554377944] [2021-07-10 00:03:36,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:36,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:36,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:36,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:36,094 INFO L87 Difference]: Start difference. First operand 121 states and 153 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:36,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:36,564 INFO L93 Difference]: Finished difference Result 140 states and 176 transitions. [2021-07-10 00:03:36,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:36,565 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:36,565 INFO L225 Difference]: With dead ends: 140 [2021-07-10 00:03:36,565 INFO L226 Difference]: Without dead ends: 114 [2021-07-10 00:03:36,566 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 441.0ms TimeCoverageRelationStatistics Valid=116, Invalid=1006, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 00:03:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-07-10 00:03:36,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2021-07-10 00:03:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.2666666666666666) internal successors, (133), 105 states have internal predecessors, (133), 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) [2021-07-10 00:03:36,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 133 transitions. [2021-07-10 00:03:36,568 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 133 transitions. Word has length 39 [2021-07-10 00:03:36,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:36,569 INFO L482 AbstractCegarLoop]: Abstraction has 106 states and 133 transitions. [2021-07-10 00:03:36,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:36,569 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 133 transitions. [2021-07-10 00:03:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:36,569 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:36,569 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:36,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-10 00:03:36,569 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:36,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:36,570 INFO L82 PathProgramCache]: Analyzing trace with hash 396161610, now seen corresponding path program 9 times [2021-07-10 00:03:36,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:36,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338591938] [2021-07-10 00:03:36,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:36,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-10 00:03:36,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:36,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:36,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338591938] [2021-07-10 00:03:36,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338591938] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:36,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:36,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 00:03:36,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310677974] [2021-07-10 00:03:36,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 00:03:36,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:36,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 00:03:36,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:36,583 INFO L87 Difference]: Start difference. First operand 106 states and 133 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:36,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:36,585 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2021-07-10 00:03:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 00:03:36,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:36,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:36,586 INFO L225 Difference]: With dead ends: 97 [2021-07-10 00:03:36,586 INFO L226 Difference]: Without dead ends: 78 [2021-07-10 00:03:36,586 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-07-10 00:03:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-07-10 00:03:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 77 states have internal predecessors, (96), 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) [2021-07-10 00:03:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2021-07-10 00:03:36,588 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 39 [2021-07-10 00:03:36,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:36,588 INFO L482 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2021-07-10 00:03:36,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:36,588 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2021-07-10 00:03:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:36,589 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:36,589 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:36,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-10 00:03:36,589 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:36,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:36,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1441339368, now seen corresponding path program 10 times [2021-07-10 00:03:36,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:36,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449357336] [2021-07-10 00:03:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:36,610 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:36,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:36,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:36,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:36,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:36,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:36,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:36,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:36,790 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-07-10 00:03:36,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:36,794 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:36,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:36,813 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:36,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:36,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:36,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:36,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449357336] [2021-07-10 00:03:36,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449357336] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:36,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:36,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:36,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671387782] [2021-07-10 00:03:36,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:36,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:36,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:36,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:36,817 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:37,355 INFO L93 Difference]: Finished difference Result 124 states and 157 transitions. [2021-07-10 00:03:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 00:03:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:37,355 INFO L225 Difference]: With dead ends: 124 [2021-07-10 00:03:37,356 INFO L226 Difference]: Without dead ends: 111 [2021-07-10 00:03:37,356 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 527.2ms TimeCoverageRelationStatistics Valid=143, Invalid=1189, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:37,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-07-10 00:03:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 92. [2021-07-10 00:03:37,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 91 states have internal predecessors, (114), 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) [2021-07-10 00:03:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2021-07-10 00:03:37,358 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 39 [2021-07-10 00:03:37,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:37,358 INFO L482 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2021-07-10 00:03:37,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:37,358 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2021-07-10 00:03:37,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:37,359 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:37,359 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:37,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-10 00:03:37,359 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:37,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:37,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1173131288, now seen corresponding path program 11 times [2021-07-10 00:03:37,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:37,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390401135] [2021-07-10 00:03:37,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:37,378 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:37,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:37,382 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:37,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:37,388 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:37,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:37,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:37,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:37,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:37,584 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:37,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:37,604 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:37,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:37,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:37,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:37,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:37,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390401135] [2021-07-10 00:03:37,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390401135] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:37,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:37,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:37,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095028707] [2021-07-10 00:03:37,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:37,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:37,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:37,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:37,609 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:38,212 INFO L93 Difference]: Finished difference Result 131 states and 162 transitions. [2021-07-10 00:03:38,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 00:03:38,213 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:38,213 INFO L225 Difference]: With dead ends: 131 [2021-07-10 00:03:38,214 INFO L226 Difference]: Without dead ends: 122 [2021-07-10 00:03:38,214 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 552.3ms TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2021-07-10 00:03:38,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-07-10 00:03:38,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 94. [2021-07-10 00:03:38,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.2473118279569892) internal successors, (116), 93 states have internal predecessors, (116), 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) [2021-07-10 00:03:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 116 transitions. [2021-07-10 00:03:38,216 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 116 transitions. Word has length 39 [2021-07-10 00:03:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:38,216 INFO L482 AbstractCegarLoop]: Abstraction has 94 states and 116 transitions. [2021-07-10 00:03:38,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 116 transitions. [2021-07-10 00:03:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:38,217 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:38,217 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:38,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-10 00:03:38,217 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:38,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:38,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1686768518, now seen corresponding path program 12 times [2021-07-10 00:03:38,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:38,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915276141] [2021-07-10 00:03:38,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:38,236 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:38,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:38,240 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:38,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:38,247 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:38,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:38,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:38,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:38,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:38,401 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:38,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:38,424 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:38,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:38,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:38,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:38,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:38,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:38,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915276141] [2021-07-10 00:03:38,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915276141] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:38,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:38,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:38,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654797530] [2021-07-10 00:03:38,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:38,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:38,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:38,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:38,428 INFO L87 Difference]: Start difference. First operand 94 states and 116 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:38,950 INFO L93 Difference]: Finished difference Result 120 states and 150 transitions. [2021-07-10 00:03:38,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 00:03:38,950 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:38,951 INFO L225 Difference]: With dead ends: 120 [2021-07-10 00:03:38,951 INFO L226 Difference]: Without dead ends: 109 [2021-07-10 00:03:38,952 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 454.8ms TimeCoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2021-07-10 00:03:38,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-07-10 00:03:38,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 91. [2021-07-10 00:03:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 90 states have internal predecessors, (112), 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) [2021-07-10 00:03:38,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2021-07-10 00:03:38,958 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 39 [2021-07-10 00:03:38,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:38,958 INFO L482 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2021-07-10 00:03:38,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2021-07-10 00:03:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:38,958 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:38,959 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:38,959 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-10 00:03:38,959 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:38,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:38,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1184258310, now seen corresponding path program 13 times [2021-07-10 00:03:38,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:38,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626123055] [2021-07-10 00:03:38,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:39,015 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:39,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:39,018 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:39,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:39,023 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:39,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:39,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:39,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:39,168 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:39,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:39,184 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:39,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:39,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:39,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:39,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626123055] [2021-07-10 00:03:39,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626123055] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:39,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:39,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:39,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116356900] [2021-07-10 00:03:39,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:39,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:39,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:39,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:39,188 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:39,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:39,684 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2021-07-10 00:03:39,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 00:03:39,684 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:39,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:39,689 INFO L225 Difference]: With dead ends: 128 [2021-07-10 00:03:39,690 INFO L226 Difference]: Without dead ends: 119 [2021-07-10 00:03:39,690 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 453.2ms TimeCoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2021-07-10 00:03:39,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-07-10 00:03:39,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2021-07-10 00:03:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.2526315789473683) internal successors, (119), 95 states have internal predecessors, (119), 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) [2021-07-10 00:03:39,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 119 transitions. [2021-07-10 00:03:39,704 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 119 transitions. Word has length 39 [2021-07-10 00:03:39,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:39,704 INFO L482 AbstractCegarLoop]: Abstraction has 96 states and 119 transitions. [2021-07-10 00:03:39,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:39,704 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 119 transitions. [2021-07-10 00:03:39,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:39,705 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:39,705 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:39,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-10 00:03:39,705 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:39,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:39,706 INFO L82 PathProgramCache]: Analyzing trace with hash -250809180, now seen corresponding path program 14 times [2021-07-10 00:03:39,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:39,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25214369] [2021-07-10 00:03:39,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:39,765 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:39,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:39,769 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:39,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:39,775 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:39,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:39,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:39,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:39,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:39,943 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:39,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:39,963 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:39,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:39,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:39,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:39,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:39,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25214369] [2021-07-10 00:03:39,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25214369] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:39,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:39,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:39,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891312105] [2021-07-10 00:03:39,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:39,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:39,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:39,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:39,967 INFO L87 Difference]: Start difference. First operand 96 states and 119 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:40,517 INFO L93 Difference]: Finished difference Result 127 states and 153 transitions. [2021-07-10 00:03:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 00:03:40,517 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:40,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:40,518 INFO L225 Difference]: With dead ends: 127 [2021-07-10 00:03:40,518 INFO L226 Difference]: Without dead ends: 118 [2021-07-10 00:03:40,518 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 538.4ms TimeCoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:40,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-07-10 00:03:40,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 95. [2021-07-10 00:03:40,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 00:03:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2021-07-10 00:03:40,520 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 39 [2021-07-10 00:03:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:40,520 INFO L482 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2021-07-10 00:03:40,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2021-07-10 00:03:40,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:40,521 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:40,521 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:40,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-10 00:03:40,521 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:40,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:40,521 INFO L82 PathProgramCache]: Analyzing trace with hash -169410124, now seen corresponding path program 15 times [2021-07-10 00:03:40,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:40,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239850434] [2021-07-10 00:03:40,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:40,536 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:40,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:40,540 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:40,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:40,546 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:40,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:40,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:40,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:40,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-07-10 00:03:40,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:40,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:40,736 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:40,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:40,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:40,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:40,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:40,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239850434] [2021-07-10 00:03:40,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239850434] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:40,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:40,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:40,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887282773] [2021-07-10 00:03:40,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:40,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:40,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:40,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:40,741 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:41,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:41,278 INFO L93 Difference]: Finished difference Result 116 states and 142 transitions. [2021-07-10 00:03:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 00:03:41,278 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:41,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:41,279 INFO L225 Difference]: With dead ends: 116 [2021-07-10 00:03:41,279 INFO L226 Difference]: Without dead ends: 90 [2021-07-10 00:03:41,279 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 519.5ms TimeCoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:41,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-07-10 00:03:41,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 79. [2021-07-10 00:03:41,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 78 states have internal predecessors, (97), 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) [2021-07-10 00:03:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2021-07-10 00:03:41,281 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 39 [2021-07-10 00:03:41,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:41,281 INFO L482 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2021-07-10 00:03:41,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:41,281 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2021-07-10 00:03:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:41,281 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:41,281 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:41,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-10 00:03:41,282 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:41,282 INFO L82 PathProgramCache]: Analyzing trace with hash -929036538, now seen corresponding path program 16 times [2021-07-10 00:03:41,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:41,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676777902] [2021-07-10 00:03:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:41,324 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:41,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:41,328 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:41,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:41,334 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:41,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:41,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:41,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:41,479 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-07-10 00:03:41,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:41,484 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:41,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:41,505 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:41,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:41,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:41,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:41,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:41,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676777902] [2021-07-10 00:03:41,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676777902] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:41,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:41,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:41,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889139688] [2021-07-10 00:03:41,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:41,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:41,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:41,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:41,511 INFO L87 Difference]: Start difference. First operand 79 states and 97 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:42,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:42,063 INFO L93 Difference]: Finished difference Result 118 states and 149 transitions. [2021-07-10 00:03:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 00:03:42,064 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:42,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:42,064 INFO L225 Difference]: With dead ends: 118 [2021-07-10 00:03:42,064 INFO L226 Difference]: Without dead ends: 105 [2021-07-10 00:03:42,065 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 517.1ms TimeCoverageRelationStatistics Valid=135, Invalid=1125, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-07-10 00:03:42,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 91. [2021-07-10 00:03:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.2333333333333334) internal successors, (111), 90 states have internal predecessors, (111), 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) [2021-07-10 00:03:42,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 111 transitions. [2021-07-10 00:03:42,066 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 111 transitions. Word has length 39 [2021-07-10 00:03:42,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:42,066 INFO L482 AbstractCegarLoop]: Abstraction has 91 states and 111 transitions. [2021-07-10 00:03:42,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:42,067 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 111 transitions. [2021-07-10 00:03:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:42,067 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:42,067 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:42,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-10 00:03:42,067 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:42,067 INFO L82 PathProgramCache]: Analyzing trace with hash 751460102, now seen corresponding path program 17 times [2021-07-10 00:03:42,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:42,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139494833] [2021-07-10 00:03:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:42,089 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:42,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:42,092 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:42,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:42,098 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:42,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:42,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:42,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:42,248 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:42,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:42,284 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:42,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:42,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:42,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:42,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:42,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139494833] [2021-07-10 00:03:42,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139494833] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:42,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:42,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:42,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100038533] [2021-07-10 00:03:42,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:42,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:42,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:42,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:42,290 INFO L87 Difference]: Start difference. First operand 91 states and 111 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:42,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:42,881 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2021-07-10 00:03:42,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 00:03:42,882 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:42,882 INFO L225 Difference]: With dead ends: 125 [2021-07-10 00:03:42,882 INFO L226 Difference]: Without dead ends: 116 [2021-07-10 00:03:42,883 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 572.4ms TimeCoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2021-07-10 00:03:42,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-07-10 00:03:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 93. [2021-07-10 00:03:42,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 92 states have internal predecessors, (113), 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) [2021-07-10 00:03:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2021-07-10 00:03:42,885 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 39 [2021-07-10 00:03:42,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:42,886 INFO L482 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2021-07-10 00:03:42,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:42,886 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2021-07-10 00:03:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:42,886 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:42,886 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:42,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-10 00:03:42,886 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:42,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:42,886 INFO L82 PathProgramCache]: Analyzing trace with hash -683607388, now seen corresponding path program 18 times [2021-07-10 00:03:42,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:42,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194622355] [2021-07-10 00:03:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:42,908 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:42,912 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:42,918 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:42,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:42,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:42,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:42,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:43,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:43,103 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:43,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:43,127 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:43,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:43,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:43,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:43,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:43,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194622355] [2021-07-10 00:03:43,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194622355] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:43,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:43,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:43,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126973439] [2021-07-10 00:03:43,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:43,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:43,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:43,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:43,132 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:43,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:43,648 INFO L93 Difference]: Finished difference Result 114 states and 142 transitions. [2021-07-10 00:03:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 00:03:43,648 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:43,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:43,649 INFO L225 Difference]: With dead ends: 114 [2021-07-10 00:03:43,649 INFO L226 Difference]: Without dead ends: 103 [2021-07-10 00:03:43,650 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 536.1ms TimeCoverageRelationStatistics Valid=137, Invalid=1195, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-07-10 00:03:43,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 90. [2021-07-10 00:03:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 89 states have internal predecessors, (109), 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) [2021-07-10 00:03:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 109 transitions. [2021-07-10 00:03:43,652 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 109 transitions. Word has length 39 [2021-07-10 00:03:43,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:43,653 INFO L482 AbstractCegarLoop]: Abstraction has 90 states and 109 transitions. [2021-07-10 00:03:43,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 109 transitions. [2021-07-10 00:03:43,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:43,653 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:43,653 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:43,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-10 00:03:43,653 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:43,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:43,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1186117596, now seen corresponding path program 19 times [2021-07-10 00:03:43,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:43,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496570375] [2021-07-10 00:03:43,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:43,681 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:43,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:43,684 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:43,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:43,690 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:43,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:43,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:43,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:43,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:43,857 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:43,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:43,884 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:43,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:43,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:43,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:43,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:43,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496570375] [2021-07-10 00:03:43,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496570375] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:43,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:43,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:43,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325011104] [2021-07-10 00:03:43,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:43,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:43,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:43,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:43,889 INFO L87 Difference]: Start difference. First operand 90 states and 109 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:44,445 INFO L93 Difference]: Finished difference Result 122 states and 148 transitions. [2021-07-10 00:03:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:44,445 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:44,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:44,446 INFO L225 Difference]: With dead ends: 122 [2021-07-10 00:03:44,446 INFO L226 Difference]: Without dead ends: 113 [2021-07-10 00:03:44,446 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 507.2ms TimeCoverageRelationStatistics Valid=137, Invalid=1195, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-07-10 00:03:44,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95. [2021-07-10 00:03:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 94 states have internal predecessors, (116), 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) [2021-07-10 00:03:44,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 116 transitions. [2021-07-10 00:03:44,448 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 116 transitions. Word has length 39 [2021-07-10 00:03:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:44,448 INFO L482 AbstractCegarLoop]: Abstraction has 95 states and 116 transitions. [2021-07-10 00:03:44,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:44,448 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 116 transitions. [2021-07-10 00:03:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:44,448 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:44,449 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:44,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-10 00:03:44,449 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:44,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:44,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1673782210, now seen corresponding path program 20 times [2021-07-10 00:03:44,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:44,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35277966] [2021-07-10 00:03:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:44,479 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:44,483 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:44,489 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:44,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:44,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:44,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:44,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:44,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:44,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:44,695 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:44,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:44,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:44,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:44,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:44,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:44,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35277966] [2021-07-10 00:03:44,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35277966] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:44,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:44,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:44,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657273674] [2021-07-10 00:03:44,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:44,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:44,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:44,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:44,699 INFO L87 Difference]: Start difference. First operand 95 states and 116 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:45,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:45,189 INFO L93 Difference]: Finished difference Result 121 states and 145 transitions. [2021-07-10 00:03:45,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:45,190 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:45,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:45,190 INFO L225 Difference]: With dead ends: 121 [2021-07-10 00:03:45,190 INFO L226 Difference]: Without dead ends: 112 [2021-07-10 00:03:45,191 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 512.4ms TimeCoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:45,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-07-10 00:03:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2021-07-10 00:03:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.2258064516129032) internal successors, (114), 93 states have internal predecessors, (114), 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) [2021-07-10 00:03:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2021-07-10 00:03:45,193 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 114 transitions. Word has length 39 [2021-07-10 00:03:45,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:45,193 INFO L482 AbstractCegarLoop]: Abstraction has 94 states and 114 transitions. [2021-07-10 00:03:45,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 114 transitions. [2021-07-10 00:03:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:45,194 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:45,194 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:45,194 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-10 00:03:45,194 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:45,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:45,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1755181266, now seen corresponding path program 21 times [2021-07-10 00:03:45,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:45,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268772046] [2021-07-10 00:03:45,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:45,220 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:45,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:45,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:45,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:45,230 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:45,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:45,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:45,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-07-10 00:03:45,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:45,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:45,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:45,430 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:45,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:45,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:45,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:45,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268772046] [2021-07-10 00:03:45,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268772046] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:45,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:45,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:45,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767639223] [2021-07-10 00:03:45,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:45,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:45,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:45,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:45,435 INFO L87 Difference]: Start difference. First operand 94 states and 114 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:45,939 INFO L93 Difference]: Finished difference Result 110 states and 134 transitions. [2021-07-10 00:03:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:45,939 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:45,940 INFO L225 Difference]: With dead ends: 110 [2021-07-10 00:03:45,940 INFO L226 Difference]: Without dead ends: 82 [2021-07-10 00:03:45,940 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 507.0ms TimeCoverageRelationStatistics Valid=124, Invalid=1066, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:45,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-07-10 00:03:45,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2021-07-10 00:03:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 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) [2021-07-10 00:03:45,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2021-07-10 00:03:45,941 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 39 [2021-07-10 00:03:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:45,942 INFO L482 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2021-07-10 00:03:45,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:45,942 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2021-07-10 00:03:45,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:45,942 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:45,942 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:45,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-10 00:03:45,942 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:45,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:45,942 INFO L82 PathProgramCache]: Analyzing trace with hash 307672198, now seen corresponding path program 22 times [2021-07-10 00:03:45,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:45,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004528674] [2021-07-10 00:03:45,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:45,956 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:45,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:45,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:45,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:45,966 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:45,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:45,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:45,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:45,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:46,109 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-07-10 00:03:46,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:46,114 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:46,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:46,135 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:46,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:46,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:46,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:46,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004528674] [2021-07-10 00:03:46,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004528674] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:46,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:46,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:46,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596539696] [2021-07-10 00:03:46,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:46,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:46,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:46,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:46,139 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:46,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:46,589 INFO L93 Difference]: Finished difference Result 122 states and 152 transitions. [2021-07-10 00:03:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:46,589 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:46,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:46,604 INFO L225 Difference]: With dead ends: 122 [2021-07-10 00:03:46,604 INFO L226 Difference]: Without dead ends: 109 [2021-07-10 00:03:46,605 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 452.6ms TimeCoverageRelationStatistics Valid=131, Invalid=1129, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-07-10 00:03:46,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2021-07-10 00:03:46,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.2717391304347827) internal successors, (117), 92 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 00:03:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2021-07-10 00:03:46,607 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 39 [2021-07-10 00:03:46,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:46,607 INFO L482 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions. [2021-07-10 00:03:46,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2021-07-10 00:03:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:46,607 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:46,607 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:46,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-10 00:03:46,607 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:46,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:46,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1988168838, now seen corresponding path program 23 times [2021-07-10 00:03:46,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:46,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360653322] [2021-07-10 00:03:46,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:46,633 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:46,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:46,636 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:46,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:46,642 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:46,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:46,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:46,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:46,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:46,813 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:46,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:46,830 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:46,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:46,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:46,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:46,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:46,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:46,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360653322] [2021-07-10 00:03:46,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360653322] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:46,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:46,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:46,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180639196] [2021-07-10 00:03:46,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:46,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:46,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:46,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:46,835 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:47,338 INFO L93 Difference]: Finished difference Result 129 states and 157 transitions. [2021-07-10 00:03:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 00:03:47,339 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:47,339 INFO L225 Difference]: With dead ends: 129 [2021-07-10 00:03:47,339 INFO L226 Difference]: Without dead ends: 120 [2021-07-10 00:03:47,340 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 518.1ms TimeCoverageRelationStatistics Valid=141, Invalid=1265, Unknown=0, NotChecked=0, Total=1406 [2021-07-10 00:03:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-07-10 00:03:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 95. [2021-07-10 00:03:47,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 94 states have internal predecessors, (119), 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) [2021-07-10 00:03:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 119 transitions. [2021-07-10 00:03:47,357 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 119 transitions. Word has length 39 [2021-07-10 00:03:47,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:47,357 INFO L482 AbstractCegarLoop]: Abstraction has 95 states and 119 transitions. [2021-07-10 00:03:47,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:47,358 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 119 transitions. [2021-07-10 00:03:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:47,358 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:47,358 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:47,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-10 00:03:47,358 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:47,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:47,359 INFO L82 PathProgramCache]: Analyzing trace with hash 553101348, now seen corresponding path program 24 times [2021-07-10 00:03:47,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:47,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746675240] [2021-07-10 00:03:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:47,401 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:47,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:47,405 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:47,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:47,412 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:47,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:47,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:47,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:47,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:47,591 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:47,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:47,614 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:47,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:47,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:47,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:47,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:47,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746675240] [2021-07-10 00:03:47,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746675240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:47,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:47,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:47,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713119528] [2021-07-10 00:03:47,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:47,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:47,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:47,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:47,619 INFO L87 Difference]: Start difference. First operand 95 states and 119 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:48,198 INFO L93 Difference]: Finished difference Result 118 states and 145 transitions. [2021-07-10 00:03:48,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:48,198 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:48,199 INFO L225 Difference]: With dead ends: 118 [2021-07-10 00:03:48,199 INFO L226 Difference]: Without dead ends: 107 [2021-07-10 00:03:48,199 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 561.9ms TimeCoverageRelationStatistics Valid=133, Invalid=1199, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:48,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-07-10 00:03:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 92. [2021-07-10 00:03:48,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 91 states have internal predecessors, (115), 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) [2021-07-10 00:03:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2021-07-10 00:03:48,201 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 39 [2021-07-10 00:03:48,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:48,201 INFO L482 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2021-07-10 00:03:48,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2021-07-10 00:03:48,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:48,201 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:48,201 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:48,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-10 00:03:48,202 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:48,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:48,202 INFO L82 PathProgramCache]: Analyzing trace with hash 50591140, now seen corresponding path program 25 times [2021-07-10 00:03:48,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:48,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166509198] [2021-07-10 00:03:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:48,219 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:48,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:48,223 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:48,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:48,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:48,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:48,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:48,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:48,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:48,387 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:48,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:48,409 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:48,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:48,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:48,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:48,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:48,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166509198] [2021-07-10 00:03:48,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166509198] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:48,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:48,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:48,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432007292] [2021-07-10 00:03:48,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:48,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:48,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:48,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:48,413 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:48,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:48,997 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2021-07-10 00:03:48,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:48,998 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:48,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:48,998 INFO L225 Difference]: With dead ends: 126 [2021-07-10 00:03:48,998 INFO L226 Difference]: Without dead ends: 117 [2021-07-10 00:03:48,999 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 551.2ms TimeCoverageRelationStatistics Valid=133, Invalid=1199, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:48,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-07-10 00:03:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 97. [2021-07-10 00:03:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.2708333333333333) internal successors, (122), 96 states have internal predecessors, (122), 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) [2021-07-10 00:03:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 122 transitions. [2021-07-10 00:03:49,014 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 122 transitions. Word has length 39 [2021-07-10 00:03:49,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:49,014 INFO L482 AbstractCegarLoop]: Abstraction has 97 states and 122 transitions. [2021-07-10 00:03:49,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 122 transitions. [2021-07-10 00:03:49,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:49,015 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:49,015 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:49,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-10 00:03:49,015 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:49,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1384476350, now seen corresponding path program 26 times [2021-07-10 00:03:49,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:49,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815735366] [2021-07-10 00:03:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:49,046 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:49,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:49,050 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:49,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:49,070 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:49,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:49,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:49,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:49,242 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:49,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:49,264 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:49,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:49,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:49,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:49,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:49,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815735366] [2021-07-10 00:03:49,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815735366] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:49,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:49,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:49,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502446526] [2021-07-10 00:03:49,269 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:49,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:49,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:49,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:49,270 INFO L87 Difference]: Start difference. First operand 97 states and 122 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:49,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:49,811 INFO L93 Difference]: Finished difference Result 125 states and 148 transitions. [2021-07-10 00:03:49,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:49,811 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:49,812 INFO L225 Difference]: With dead ends: 125 [2021-07-10 00:03:49,812 INFO L226 Difference]: Without dead ends: 116 [2021-07-10 00:03:49,812 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 526.1ms TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:49,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-07-10 00:03:49,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 96. [2021-07-10 00:03:49,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.263157894736842) internal successors, (120), 95 states have internal predecessors, (120), 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) [2021-07-10 00:03:49,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 120 transitions. [2021-07-10 00:03:49,814 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 120 transitions. Word has length 39 [2021-07-10 00:03:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:49,814 INFO L482 AbstractCegarLoop]: Abstraction has 96 states and 120 transitions. [2021-07-10 00:03:49,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 120 transitions. [2021-07-10 00:03:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:49,814 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:49,814 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:49,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-10 00:03:49,815 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:49,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1303077294, now seen corresponding path program 27 times [2021-07-10 00:03:49,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:49,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795308756] [2021-07-10 00:03:49,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:49,827 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:49,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:49,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:49,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:49,837 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:49,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:49,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:49,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:49,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:49,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-07-10 00:03:49,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:50,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:50,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:50,031 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:50,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:50,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:50,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:50,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795308756] [2021-07-10 00:03:50,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795308756] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:50,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:50,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:50,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108001459] [2021-07-10 00:03:50,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:50,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:50,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:50,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:50,035 INFO L87 Difference]: Start difference. First operand 96 states and 120 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:50,528 INFO L93 Difference]: Finished difference Result 114 states and 137 transitions. [2021-07-10 00:03:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:50,528 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:50,528 INFO L225 Difference]: With dead ends: 114 [2021-07-10 00:03:50,528 INFO L226 Difference]: Without dead ends: 88 [2021-07-10 00:03:50,529 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 501.7ms TimeCoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:50,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-07-10 00:03:50,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2021-07-10 00:03:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 79 states have internal predecessors, (100), 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) [2021-07-10 00:03:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 100 transitions. [2021-07-10 00:03:50,530 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 100 transitions. Word has length 39 [2021-07-10 00:03:50,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:50,530 INFO L482 AbstractCegarLoop]: Abstraction has 80 states and 100 transitions. [2021-07-10 00:03:50,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 100 transitions. [2021-07-10 00:03:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:50,531 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:50,531 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:50,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-10 00:03:50,531 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:50,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:50,531 INFO L82 PathProgramCache]: Analyzing trace with hash -2062703708, now seen corresponding path program 28 times [2021-07-10 00:03:50,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:50,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994417627] [2021-07-10 00:03:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:50,544 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:50,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:50,548 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:50,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:50,553 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:50,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:50,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:50,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:50,701 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-07-10 00:03:50,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:50,706 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:50,726 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:50,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:50,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:50,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:50,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:50,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994417627] [2021-07-10 00:03:50,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994417627] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:50,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:50,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:50,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610128548] [2021-07-10 00:03:50,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:50,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:50,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:50,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:50,730 INFO L87 Difference]: Start difference. First operand 80 states and 100 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:51,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:51,259 INFO L93 Difference]: Finished difference Result 121 states and 149 transitions. [2021-07-10 00:03:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:51,259 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:51,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:51,260 INFO L225 Difference]: With dead ends: 121 [2021-07-10 00:03:51,260 INFO L226 Difference]: Without dead ends: 108 [2021-07-10 00:03:51,260 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 506.2ms TimeCoverageRelationStatistics Valid=125, Invalid=1065, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:51,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-07-10 00:03:51,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 92. [2021-07-10 00:03:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 91 states have internal predecessors, (114), 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) [2021-07-10 00:03:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2021-07-10 00:03:51,262 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 39 [2021-07-10 00:03:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:51,262 INFO L482 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2021-07-10 00:03:51,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:51,262 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2021-07-10 00:03:51,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:51,262 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:51,262 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:51,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-10 00:03:51,263 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:51,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:51,263 INFO L82 PathProgramCache]: Analyzing trace with hash -382207068, now seen corresponding path program 29 times [2021-07-10 00:03:51,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:51,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939534386] [2021-07-10 00:03:51,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:51,275 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:51,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:51,279 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:51,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:51,285 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:51,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:51,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:51,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:51,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:51,449 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:51,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:51,471 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:51,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:51,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:51,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:51,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:51,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939534386] [2021-07-10 00:03:51,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939534386] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:51,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:51,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:51,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080945963] [2021-07-10 00:03:51,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:51,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:51,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:51,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:51,475 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:52,067 INFO L93 Difference]: Finished difference Result 128 states and 154 transitions. [2021-07-10 00:03:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 00:03:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:52,068 INFO L225 Difference]: With dead ends: 128 [2021-07-10 00:03:52,068 INFO L226 Difference]: Without dead ends: 119 [2021-07-10 00:03:52,069 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 563.5ms TimeCoverageRelationStatistics Valid=135, Invalid=1197, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 00:03:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-07-10 00:03:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 94. [2021-07-10 00:03:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.2473118279569892) internal successors, (116), 93 states have internal predecessors, (116), 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) [2021-07-10 00:03:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 116 transitions. [2021-07-10 00:03:52,071 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 116 transitions. Word has length 39 [2021-07-10 00:03:52,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:52,071 INFO L482 AbstractCegarLoop]: Abstraction has 94 states and 116 transitions. [2021-07-10 00:03:52,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 116 transitions. [2021-07-10 00:03:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:52,071 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:52,071 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:52,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-10 00:03:52,072 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:52,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1817274558, now seen corresponding path program 30 times [2021-07-10 00:03:52,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:52,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895398954] [2021-07-10 00:03:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:52,099 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:52,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:52,103 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:52,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:52,109 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:52,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:52,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:52,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:52,283 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:52,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:52,301 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:52,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:52,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:52,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:52,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895398954] [2021-07-10 00:03:52,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895398954] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:52,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:52,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:52,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305526268] [2021-07-10 00:03:52,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:52,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:52,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:52,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:52,305 INFO L87 Difference]: Start difference. First operand 94 states and 116 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:52,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:52,901 INFO L93 Difference]: Finished difference Result 117 states and 142 transitions. [2021-07-10 00:03:52,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:52,901 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:52,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:52,902 INFO L225 Difference]: With dead ends: 117 [2021-07-10 00:03:52,902 INFO L226 Difference]: Without dead ends: 106 [2021-07-10 00:03:52,902 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 563.2ms TimeCoverageRelationStatistics Valid=127, Invalid=1133, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:52,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-07-10 00:03:52,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 91. [2021-07-10 00:03:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 90 states have internal predecessors, (112), 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) [2021-07-10 00:03:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2021-07-10 00:03:52,904 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 39 [2021-07-10 00:03:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:52,904 INFO L482 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2021-07-10 00:03:52,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:52,904 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2021-07-10 00:03:52,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:52,904 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:52,904 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:52,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-10 00:03:52,905 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:52,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:52,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1975182530, now seen corresponding path program 31 times [2021-07-10 00:03:52,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:52,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946560005] [2021-07-10 00:03:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:52,922 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:52,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:52,926 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:52,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:52,934 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:52,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:52,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:52,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:52,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:53,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:53,095 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:53,117 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:53,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:53,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:53,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:53,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946560005] [2021-07-10 00:03:53,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946560005] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:53,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:53,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:53,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625761456] [2021-07-10 00:03:53,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:53,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:53,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:53,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:53,121 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:53,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:53,670 INFO L93 Difference]: Finished difference Result 125 states and 148 transitions. [2021-07-10 00:03:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:53,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:53,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:53,671 INFO L225 Difference]: With dead ends: 125 [2021-07-10 00:03:53,671 INFO L226 Difference]: Without dead ends: 116 [2021-07-10 00:03:53,672 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 527.7ms TimeCoverageRelationStatistics Valid=127, Invalid=1133, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-07-10 00:03:53,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 96. [2021-07-10 00:03:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.2526315789473683) internal successors, (119), 95 states have internal predecessors, (119), 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) [2021-07-10 00:03:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 119 transitions. [2021-07-10 00:03:53,673 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 119 transitions. Word has length 39 [2021-07-10 00:03:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:53,673 INFO L482 AbstractCegarLoop]: Abstraction has 96 states and 119 transitions. [2021-07-10 00:03:53,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:53,673 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 119 transitions. [2021-07-10 00:03:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:53,674 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:53,674 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:53,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-10 00:03:53,674 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:53,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:53,674 INFO L82 PathProgramCache]: Analyzing trace with hash 540115040, now seen corresponding path program 32 times [2021-07-10 00:03:53,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:53,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11628392] [2021-07-10 00:03:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:53,685 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:53,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:53,689 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:53,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:53,695 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:53,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:53,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:53,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:53,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:53,868 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:53,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:53,890 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:53,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:53,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:53,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:53,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:53,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11628392] [2021-07-10 00:03:53,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11628392] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:53,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:53,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:53,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865471558] [2021-07-10 00:03:53,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:53,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:53,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:53,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:53,894 INFO L87 Difference]: Start difference. First operand 96 states and 119 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:54,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:54,416 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2021-07-10 00:03:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 00:03:54,416 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:54,417 INFO L225 Difference]: With dead ends: 124 [2021-07-10 00:03:54,417 INFO L226 Difference]: Without dead ends: 115 [2021-07-10 00:03:54,417 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 517.9ms TimeCoverageRelationStatistics Valid=122, Invalid=1068, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:54,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-07-10 00:03:54,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2021-07-10 00:03:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 00:03:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2021-07-10 00:03:54,419 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 39 [2021-07-10 00:03:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:54,419 INFO L482 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2021-07-10 00:03:54,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:54,419 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2021-07-10 00:03:54,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:54,419 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:54,419 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:54,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-10 00:03:54,419 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:54,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:54,420 INFO L82 PathProgramCache]: Analyzing trace with hash 621514096, now seen corresponding path program 33 times [2021-07-10 00:03:54,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:54,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983343576] [2021-07-10 00:03:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:54,435 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:54,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:54,439 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:54,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:54,446 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:54,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:54,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:54,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:54,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-07-10 00:03:54,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:54,627 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:54,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:54,649 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:54,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:54,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:54,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:54,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:54,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983343576] [2021-07-10 00:03:54,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983343576] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:54,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:54,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:54,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935884028] [2021-07-10 00:03:54,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:54,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:54,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:54,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:54,653 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:55,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:55,120 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2021-07-10 00:03:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:55,120 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:55,120 INFO L225 Difference]: With dead ends: 113 [2021-07-10 00:03:55,121 INFO L226 Difference]: Without dead ends: 87 [2021-07-10 00:03:55,121 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 488.8ms TimeCoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 00:03:55,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-07-10 00:03:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 79. [2021-07-10 00:03:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 78 states have internal predecessors, (98), 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) [2021-07-10 00:03:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions. [2021-07-10 00:03:55,122 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 39 [2021-07-10 00:03:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:55,122 INFO L482 AbstractCegarLoop]: Abstraction has 79 states and 98 transitions. [2021-07-10 00:03:55,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions. [2021-07-10 00:03:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:55,123 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:55,123 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:55,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-10 00:03:55,123 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:55,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:55,123 INFO L82 PathProgramCache]: Analyzing trace with hash -964455244, now seen corresponding path program 34 times [2021-07-10 00:03:55,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:55,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856041563] [2021-07-10 00:03:55,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:55,140 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:55,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:55,144 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:55,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:55,150 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:55,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:55,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:55,308 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-07-10 00:03:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:55,312 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:55,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:55,329 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:55,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:55,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:55,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:55,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856041563] [2021-07-10 00:03:55,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856041563] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:55,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:55,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-10 00:03:55,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838413349] [2021-07-10 00:03:55,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 00:03:55,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:55,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 00:03:55,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-07-10 00:03:55,333 INFO L87 Difference]: Start difference. First operand 79 states and 98 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:55,841 INFO L93 Difference]: Finished difference Result 115 states and 142 transitions. [2021-07-10 00:03:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:55,842 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:55,842 INFO L225 Difference]: With dead ends: 115 [2021-07-10 00:03:55,842 INFO L226 Difference]: Without dead ends: 102 [2021-07-10 00:03:55,843 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 510.3ms TimeCoverageRelationStatistics Valid=116, Invalid=1006, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 00:03:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-07-10 00:03:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2021-07-10 00:03:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 93 states have internal predecessors, (115), 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) [2021-07-10 00:03:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2021-07-10 00:03:55,844 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 39 [2021-07-10 00:03:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:55,844 INFO L482 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2021-07-10 00:03:55,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-07-10 00:03:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2021-07-10 00:03:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:55,844 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:55,844 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:55,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-10 00:03:55,845 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:55,845 INFO L82 PathProgramCache]: Analyzing trace with hash 716041396, now seen corresponding path program 35 times [2021-07-10 00:03:55,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:55,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102470142] [2021-07-10 00:03:55,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:55,856 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:55,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:55,860 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:55,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:55,865 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:55,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:55,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:55,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:55,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:56,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:56,026 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:56,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:56,048 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:56,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:56,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:56,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:56,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102470142] [2021-07-10 00:03:56,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102470142] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:56,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:56,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:56,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083281570] [2021-07-10 00:03:56,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:56,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:56,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:56,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:56,052 INFO L87 Difference]: Start difference. First operand 94 states and 115 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:56,606 INFO L93 Difference]: Finished difference Result 122 states and 147 transitions. [2021-07-10 00:03:56,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 00:03:56,607 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:56,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:56,607 INFO L225 Difference]: With dead ends: 122 [2021-07-10 00:03:56,607 INFO L226 Difference]: Without dead ends: 113 [2021-07-10 00:03:56,608 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 527.3ms TimeCoverageRelationStatistics Valid=126, Invalid=1134, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 00:03:56,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-07-10 00:03:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2021-07-10 00:03:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.231578947368421) internal successors, (117), 95 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 00:03:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2021-07-10 00:03:56,609 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 39 [2021-07-10 00:03:56,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:56,609 INFO L482 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2021-07-10 00:03:56,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:56,610 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2021-07-10 00:03:56,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:56,610 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:56,610 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:56,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-10 00:03:56,610 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:56,610 INFO L82 PathProgramCache]: Analyzing trace with hash -719026094, now seen corresponding path program 36 times [2021-07-10 00:03:56,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:56,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157142575] [2021-07-10 00:03:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:56,621 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:56,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:56,625 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:56,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:56,631 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:56,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:56,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:56,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:56,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:56,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:56,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:56,812 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:56,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:56,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:56,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:56,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:56,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157142575] [2021-07-10 00:03:56,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157142575] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:56,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:56,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:56,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548367582] [2021-07-10 00:03:56,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:56,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:56,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:56,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:56,816 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:57,321 INFO L93 Difference]: Finished difference Result 111 states and 135 transitions. [2021-07-10 00:03:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:57,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:57,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:57,322 INFO L225 Difference]: With dead ends: 111 [2021-07-10 00:03:57,322 INFO L226 Difference]: Without dead ends: 100 [2021-07-10 00:03:57,323 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 481.4ms TimeCoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:57,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-07-10 00:03:57,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2021-07-10 00:03:57,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 92 states have internal predecessors, (113), 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) [2021-07-10 00:03:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2021-07-10 00:03:57,324 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 39 [2021-07-10 00:03:57,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:57,324 INFO L482 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2021-07-10 00:03:57,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2021-07-10 00:03:57,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:57,324 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:57,324 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:57,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-10 00:03:57,325 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:57,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1221536302, now seen corresponding path program 37 times [2021-07-10 00:03:57,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:57,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044577109] [2021-07-10 00:03:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:57,338 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:57,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:57,342 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:57,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:57,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:57,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:57,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:57,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:57,518 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-07-10 00:03:57,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:57,540 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:57,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:57,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:57,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:57,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:57,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044577109] [2021-07-10 00:03:57,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044577109] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:57,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:57,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:57,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041395718] [2021-07-10 00:03:57,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:57,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:57,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:57,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:57,544 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:58,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:58,054 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2021-07-10 00:03:58,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:58,054 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:58,055 INFO L225 Difference]: With dead ends: 119 [2021-07-10 00:03:58,055 INFO L226 Difference]: Without dead ends: 110 [2021-07-10 00:03:58,055 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 508.5ms TimeCoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2021-07-10 00:03:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-07-10 00:03:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2021-07-10 00:03:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.2371134020618557) internal successors, (120), 97 states have internal predecessors, (120), 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) [2021-07-10 00:03:58,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2021-07-10 00:03:58,057 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 39 [2021-07-10 00:03:58,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:58,057 INFO L482 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2021-07-10 00:03:58,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2021-07-10 00:03:58,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:58,057 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:58,057 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:58,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-10 00:03:58,057 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:58,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:58,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1638363504, now seen corresponding path program 38 times [2021-07-10 00:03:58,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:58,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099469144] [2021-07-10 00:03:58,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:58,068 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:58,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:58,072 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:58,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:58,079 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:58,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:58,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:58,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-10 00:03:58,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:58,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:58,278 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:58,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:58,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:58,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099469144] [2021-07-10 00:03:58,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099469144] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:58,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:58,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:58,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171146739] [2021-07-10 00:03:58,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:58,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:58,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:58,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:58,282 INFO L87 Difference]: Start difference. First operand 98 states and 120 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:58,775 INFO L93 Difference]: Finished difference Result 118 states and 138 transitions. [2021-07-10 00:03:58,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 00:03:58,775 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:58,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:58,776 INFO L225 Difference]: With dead ends: 118 [2021-07-10 00:03:58,776 INFO L226 Difference]: Without dead ends: 109 [2021-07-10 00:03:58,776 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 496.0ms TimeCoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 00:03:58,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-07-10 00:03:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2021-07-10 00:03:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.2291666666666667) internal successors, (118), 96 states have internal predecessors, (118), 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) [2021-07-10 00:03:58,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 118 transitions. [2021-07-10 00:03:58,777 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 118 transitions. Word has length 39 [2021-07-10 00:03:58,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:58,778 INFO L482 AbstractCegarLoop]: Abstraction has 97 states and 118 transitions. [2021-07-10 00:03:58,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 118 transitions. [2021-07-10 00:03:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:58,778 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:58,778 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:58,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-10 00:03:58,778 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:58,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:58,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1719762560, now seen corresponding path program 39 times [2021-07-10 00:03:58,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:58,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709072689] [2021-07-10 00:03:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:58,789 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-07-10 00:03:58,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-10 00:03:58,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:58,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:58,799 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-10 00:03:58,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-10 00:03:58,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-10 00:03:58,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:58,940 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-07-10 00:03:58,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-10 00:03:58,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-07-10 00:03:58,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-10 00:03:58,983 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-07-10 00:03:58,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-10 00:03:58,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:58,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:58,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:58,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709072689] [2021-07-10 00:03:58,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709072689] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:58,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:58,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-10 00:03:58,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907659604] [2021-07-10 00:03:58,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 00:03:58,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:58,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 00:03:58,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-07-10 00:03:58,987 INFO L87 Difference]: Start difference. First operand 97 states and 118 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:59,454 INFO L93 Difference]: Finished difference Result 107 states and 127 transitions. [2021-07-10 00:03:59,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 00:03:59,454 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:59,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:59,454 INFO L225 Difference]: With dead ends: 107 [2021-07-10 00:03:59,454 INFO L226 Difference]: Without dead ends: 64 [2021-07-10 00:03:59,455 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 463.4ms TimeCoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056 [2021-07-10 00:03:59,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-07-10 00:03:59,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-07-10 00:03:59,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 63 states have internal predecessors, (78), 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) [2021-07-10 00:03:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2021-07-10 00:03:59,456 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 39 [2021-07-10 00:03:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:59,456 INFO L482 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2021-07-10 00:03:59,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 00:03:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2021-07-10 00:03:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-10 00:03:59,456 INFO L500 BasicCegarLoop]: Found error trace [2021-07-10 00:03:59,456 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-10 00:03:59,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-10 00:03:59,456 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 00:03:59,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 00:03:59,457 INFO L82 PathProgramCache]: Analyzing trace with hash -111403318, now seen corresponding path program 40 times [2021-07-10 00:03:59,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 00:03:59,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851710731] [2021-07-10 00:03:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 00:03:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 00:03:59,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:59,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-10 00:03:59,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 00:03:59,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-10 00:03:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 00:03:59,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 00:03:59,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851710731] [2021-07-10 00:03:59,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851710731] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 00:03:59,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 00:03:59,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 00:03:59,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106709614] [2021-07-10 00:03:59,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 00:03:59,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 00:03:59,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 00:03:59,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:59,464 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-10 00:03:59,464 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-07-10 00:03:59,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 00:03:59,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-07-10 00:03:59,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-10 00:03:59,464 INFO L225 Difference]: With dead ends: 13 [2021-07-10 00:03:59,464 INFO L226 Difference]: Without dead ends: 0 [2021-07-10 00:03:59,464 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 00:03:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-10 00:03:59,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-10 00:03:59,465 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) [2021-07-10 00:03:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-10 00:03:59,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-07-10 00:03:59,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-10 00:03:59,465 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-10 00:03:59,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-07-10 00:03:59,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-10 00:03:59,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-10 00:03:59,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-10 00:03:59,466 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-10 00:03:59,468 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 12:03:59 BasicIcfg [2021-07-10 00:03:59,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-10 00:03:59,468 INFO L168 Benchmark]: Toolchain (without parser) took 29147.37 ms. Allocated memory was 190.8 MB in the beginning and 471.9 MB in the end (delta: 281.0 MB). Free memory was 171.0 MB in the beginning and 422.7 MB in the end (delta: -251.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2021-07-10 00:03:59,468 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 190.8 MB. Free memory is still 172.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 00:03:59,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.85 ms. Allocated memory is still 190.8 MB. Free memory was 170.9 MB in the beginning and 169.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 00:03:59,468 INFO L168 Benchmark]: Boogie Preprocessor took 17.76 ms. Allocated memory is still 190.8 MB. Free memory was 169.4 MB in the beginning and 168.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-10 00:03:59,468 INFO L168 Benchmark]: RCFGBuilder took 250.51 ms. Allocated memory is still 190.8 MB. Free memory was 168.4 MB in the beginning and 155.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-10 00:03:59,468 INFO L168 Benchmark]: TraceAbstraction took 28851.66 ms. Allocated memory was 190.8 MB in the beginning and 471.9 MB in the end (delta: 281.0 MB). Free memory was 154.9 MB in the beginning and 422.7 MB in the end (delta: -267.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-10 00:03:59,469 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 0.16 ms. Allocated memory is still 190.8 MB. Free memory is still 172.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.85 ms. Allocated memory is still 190.8 MB. Free memory was 170.9 MB in the beginning and 169.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.76 ms. Allocated memory is still 190.8 MB. Free memory was 169.4 MB in the beginning and 168.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 250.51 ms. Allocated memory is still 190.8 MB. Free memory was 168.4 MB in the beginning and 155.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28851.66 ms. Allocated memory was 190.8 MB in the beginning and 471.9 MB in the end (delta: 281.0 MB). Free memory was 154.9 MB in the beginning and 422.7 MB in the end (delta: -267.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15675, positive: 15206, positive conditional: 15206, positive unconditional: 0, negative: 469, negative conditional: 469, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15675, positive: 15206, positive conditional: 0, positive unconditional: 15206, negative: 469, negative conditional: 0, negative unconditional: 469, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 378, positive: 364, positive conditional: 0, positive unconditional: 364, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 378, positive: 362, positive conditional: 0, positive unconditional: 362, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 96, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15675, positive: 14842, positive conditional: 0, positive unconditional: 14842, negative: 455, negative conditional: 0, negative unconditional: 455, unknown: 378, unknown conditional: 0, unknown unconditional: 378] , Statistics on independence cache: Total cache size (in pairs): 378, Positive cache size: 364, Positive conditional cache size: 0, Positive unconditional cache size: 364, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 0 - PositiveResult [Line: 79]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28773.8ms, OverallIterations: 40, TraceHistogramMax: 1, EmptinessCheckTime: 56.1ms, AutomataDifference: 19493.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 435.5ms, PartialOrderReductionTime: 423.4ms, HoareTripleCheckerStatistics: 1561 SDtfs, 2150 SDslu, 15375 SDs, 0 SdLazy, 16277 SolverSat, 636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5733.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1352 GetRequests, 82 SyntacticMatches, 42 SemanticMatches, 1228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6190 ImplicationChecksByTransitivity, 18500.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5269occurred in iteration=0, InterpolantAutomatonStates: 891, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 146.3ms AutomataMinimizationTime, 40 MinimizatonAttempts, 599 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.4ms SsaConstructionTime, 187.3ms SatisfiabilityAnalysisTime, 8130.9ms InterpolantComputationTime, 1560 NumberOfCodeBlocks, 1560 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1520 ConstructedInterpolants, 0 QuantifiedInterpolants, 20860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 40 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...