/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 05:16:43,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 05:16:43,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 05:16:43,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 05:16:43,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 05:16:43,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 05:16:43,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 05:16:43,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 05:16:43,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 05:16:43,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 05:16:43,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 05:16:43,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 05:16:43,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 05:16:43,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 05:16:43,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 05:16:43,578 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.epf [2021-06-05 05:16:43,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 05:16:43,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 05:16:43,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 05:16:43,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 05:16:43,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 05:16:43,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 05:16:43,617 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 05:16:43,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 05:16:43,618 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 05:16:43,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 05:16:43,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 05:16:43,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 05:16:43,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 05:16:43,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 05:16:43,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 05:16:43,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 05:16:43,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 05:16:43,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 05:16:43,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 05:16:43,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 05:16:43,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 05:16:43,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 05:16:43,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 05:16:43,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 05:16:43,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 05:16:43,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 05:16:43,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 05:16:43,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 05:16:43,983 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 05:16:43,984 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 05:16:43,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl [2021-06-05 05:16:43,985 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl' [2021-06-05 05:16:44,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 05:16:44,019 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 05:16:44,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 05:16:44,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 05:16:44,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 05:16:44,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 05:16:44,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 05:16:44,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 05:16:44,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 05:16:44,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... [2021-06-05 05:16:44,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 05:16:44,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 05:16:44,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 05:16:44,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 05:16:44,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 05:16:44,122 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-05 05:16:44,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 05:16:44,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 05:16:44,123 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-05 05:16:44,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-05 05:16:44,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-05 05:16:44,124 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 05:16:44,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 05:16:44,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 05:16:44,124 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-05 05:16:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-05 05:16:44,126 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-05 05:16:44,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-05 05:16:44,126 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-05 05:16:44,126 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-05 05:16:44,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-05 05:16:44,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-05 05:16:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-05 05:16:44,127 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-05 05:16:44,128 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-05 05:16:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-05 05:16:44,129 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 05:16:44,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 05:16:44,378 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 05:16:44,380 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 05:16:44 BoogieIcfgContainer [2021-06-05 05:16:44,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 05:16:44,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 05:16:44,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 05:16:44,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 05:16:44,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:16:44" (1/2) ... [2021-06-05 05:16:44,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525592bc and model type ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 05:16:44, skipping insertion in model container [2021-06-05 05:16:44,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 05:16:44" (2/2) ... [2021-06-05 05:16:44,385 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-6.wvr.bpl [2021-06-05 05:16:44,389 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 05:16:44,390 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 05:16:44,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 05:16:44,390 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 05:16:44,504 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-06-05 05:16:44,522 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-05 05:16:44,551 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 05:16:44,552 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 05:16:44,552 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 05:16:44,552 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 05:16:44,552 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 05:16:44,552 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 05:16:44,552 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 05:16:44,552 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 05:16:44,566 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 54 transitions, 156 flow [2021-06-05 05:17:00,395 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74654 states, 74652 states have (on average 5.020736216042437) internal successors, (374808), 74653 states have internal predecessors, (374808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 74654 states, 74652 states have (on average 5.020736216042437) internal successors, (374808), 74653 states have internal predecessors, (374808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:17:01,289 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:17:01,290 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:17:01,290 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:17:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:17:01,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1505096666, now seen corresponding path program 1 times [2021-06-05 05:17:01,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:17:01,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405228594] [2021-06-05 05:17:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:17:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:17:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:17:01,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:17:01,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405228594] [2021-06-05 05:17:01,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405228594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:17:01,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:17:01,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 05:17:01,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622285177] [2021-06-05 05:17:01,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 05:17:01,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:17:01,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 05:17:01,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 05:17:01,631 INFO L87 Difference]: Start difference. First operand has 74654 states, 74652 states have (on average 5.020736216042437) internal successors, (374808), 74653 states have internal predecessors, (374808), 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 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:03,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:17:03,831 INFO L93 Difference]: Finished difference Result 201088 states and 980337 transitions. [2021-06-05 05:17:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 05:17:03,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-06-05 05:17:03,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:17:05,523 INFO L225 Difference]: With dead ends: 201088 [2021-06-05 05:17:05,524 INFO L226 Difference]: Without dead ends: 201088 [2021-06-05 05:17:05,526 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.9ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:17:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201088 states. [2021-06-05 05:17:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201088 to 100373. [2021-06-05 05:17:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100373 states, 100372 states have (on average 4.930000398517515) internal successors, (494834), 100372 states have internal predecessors, (494834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100373 states to 100373 states and 494834 transitions. [2021-06-05 05:17:12,636 INFO L78 Accepts]: Start accepts. Automaton has 100373 states and 494834 transitions. Word has length 46 [2021-06-05 05:17:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:17:12,637 INFO L482 AbstractCegarLoop]: Abstraction has 100373 states and 494834 transitions. [2021-06-05 05:17:12,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 100373 states and 494834 transitions. [2021-06-05 05:17:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:17:13,033 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:17:13,033 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:17:13,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 05:17:13,034 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:17:13,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:17:13,035 INFO L82 PathProgramCache]: Analyzing trace with hash 2046490878, now seen corresponding path program 2 times [2021-06-05 05:17:13,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:17:13,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940453679] [2021-06-05 05:17:13,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:17:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:17:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:17:13,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:17:13,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940453679] [2021-06-05 05:17:13,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940453679] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:17:13,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:17:13,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 05:17:13,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873612166] [2021-06-05 05:17:13,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 05:17:13,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:17:13,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 05:17:13,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:17:13,105 INFO L87 Difference]: Start difference. First operand 100373 states and 494834 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:15,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:17:15,924 INFO L93 Difference]: Finished difference Result 237543 states and 1143295 transitions. [2021-06-05 05:17:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 05:17:15,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-05 05:17:15,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:17:17,187 INFO L225 Difference]: With dead ends: 237543 [2021-06-05 05:17:17,187 INFO L226 Difference]: Without dead ends: 237543 [2021-06-05 05:17:17,188 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:17:19,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237543 states. [2021-06-05 05:17:23,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237543 to 124242. [2021-06-05 05:17:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124242 states, 124241 states have (on average 4.865503336257757) internal successors, (604495), 124241 states have internal predecessors, (604495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124242 states to 124242 states and 604495 transitions. [2021-06-05 05:17:24,820 INFO L78 Accepts]: Start accepts. Automaton has 124242 states and 604495 transitions. Word has length 46 [2021-06-05 05:17:24,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:17:24,837 INFO L482 AbstractCegarLoop]: Abstraction has 124242 states and 604495 transitions. [2021-06-05 05:17:24,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 124242 states and 604495 transitions. [2021-06-05 05:17:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:17:25,185 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:17:25,185 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:17:25,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 05:17:25,186 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:17:25,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:17:25,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1539776996, now seen corresponding path program 3 times [2021-06-05 05:17:25,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:17:25,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896318744] [2021-06-05 05:17:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:17:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:17:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:17:25,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:17:25,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896318744] [2021-06-05 05:17:25,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896318744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:17:25,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:17:25,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:17:25,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441053401] [2021-06-05 05:17:25,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:17:25,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:17:25,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:17:25,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:17:25,265 INFO L87 Difference]: Start difference. First operand 124242 states and 604495 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:28,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:17:28,023 INFO L93 Difference]: Finished difference Result 232977 states and 1116666 transitions. [2021-06-05 05:17:28,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 05:17:28,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:17:28,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:17:29,293 INFO L225 Difference]: With dead ends: 232977 [2021-06-05 05:17:29,293 INFO L226 Difference]: Without dead ends: 232977 [2021-06-05 05:17:29,293 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 27.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:17:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232977 states. [2021-06-05 05:17:35,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232977 to 140760. [2021-06-05 05:17:35,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140760 states, 140759 states have (on average 4.84867752683665) internal successors, (682495), 140759 states have internal predecessors, (682495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140760 states to 140760 states and 682495 transitions. [2021-06-05 05:17:37,097 INFO L78 Accepts]: Start accepts. Automaton has 140760 states and 682495 transitions. Word has length 46 [2021-06-05 05:17:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:17:37,097 INFO L482 AbstractCegarLoop]: Abstraction has 140760 states and 682495 transitions. [2021-06-05 05:17:37,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 140760 states and 682495 transitions. [2021-06-05 05:17:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:17:37,490 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:17:37,490 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:17:37,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 05:17:37,490 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:17:37,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:17:37,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1869124714, now seen corresponding path program 4 times [2021-06-05 05:17:37,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:17:37,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124588348] [2021-06-05 05:17:37,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:17:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:17:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:17:37,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:17:37,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124588348] [2021-06-05 05:17:38,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124588348] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:17:38,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:17:38,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:17:38,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090357426] [2021-06-05 05:17:38,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:17:38,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:17:38,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:17:38,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:17:38,100 INFO L87 Difference]: Start difference. First operand 140760 states and 682495 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:40,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:17:40,605 INFO L93 Difference]: Finished difference Result 207060 states and 995129 transitions. [2021-06-05 05:17:40,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:17:40,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:17:40,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:17:41,976 INFO L225 Difference]: With dead ends: 207060 [2021-06-05 05:17:41,976 INFO L226 Difference]: Without dead ends: 207060 [2021-06-05 05:17:41,976 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 37.0ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:17:43,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207060 states. [2021-06-05 05:17:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207060 to 146091. [2021-06-05 05:17:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146091 states, 146090 states have (on average 4.832856458347594) internal successors, (706032), 146090 states have internal predecessors, (706032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146091 states to 146091 states and 706032 transitions. [2021-06-05 05:17:48,936 INFO L78 Accepts]: Start accepts. Automaton has 146091 states and 706032 transitions. Word has length 46 [2021-06-05 05:17:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:17:48,936 INFO L482 AbstractCegarLoop]: Abstraction has 146091 states and 706032 transitions. [2021-06-05 05:17:48,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 146091 states and 706032 transitions. [2021-06-05 05:17:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:17:50,126 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:17:50,126 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:17:50,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 05:17:50,127 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:17:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:17:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash -813595456, now seen corresponding path program 5 times [2021-06-05 05:17:50,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:17:50,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220499477] [2021-06-05 05:17:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:17:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:17:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:17:50,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:17:50,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220499477] [2021-06-05 05:17:50,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220499477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:17:50,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:17:50,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:17:50,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230804544] [2021-06-05 05:17:50,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:17:50,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:17:50,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:17:50,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:17:50,220 INFO L87 Difference]: Start difference. First operand 146091 states and 706032 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:17:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:17:52,430 INFO L93 Difference]: Finished difference Result 271147 states and 1272171 transitions. [2021-06-05 05:17:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:17:52,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:17:52,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:17:54,201 INFO L225 Difference]: With dead ends: 271147 [2021-06-05 05:17:54,202 INFO L226 Difference]: Without dead ends: 271147 [2021-06-05 05:17:54,202 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 48.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:17:55,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271147 states. [2021-06-05 05:18:00,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271147 to 164447. [2021-06-05 05:18:01,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164447 states, 164446 states have (on average 4.712294613429332) internal successors, (774918), 164446 states have internal predecessors, (774918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164447 states to 164447 states and 774918 transitions. [2021-06-05 05:18:02,429 INFO L78 Accepts]: Start accepts. Automaton has 164447 states and 774918 transitions. Word has length 46 [2021-06-05 05:18:02,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:18:02,430 INFO L482 AbstractCegarLoop]: Abstraction has 164447 states and 774918 transitions. [2021-06-05 05:18:02,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 164447 states and 774918 transitions. [2021-06-05 05:18:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:18:02,910 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:18:02,910 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:18:02,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 05:18:02,910 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:18:02,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:18:02,911 INFO L82 PathProgramCache]: Analyzing trace with hash 39659516, now seen corresponding path program 6 times [2021-06-05 05:18:02,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:18:02,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601847340] [2021-06-05 05:18:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:18:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:18:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:18:02,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:18:02,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601847340] [2021-06-05 05:18:02,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601847340] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:18:02,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:18:02,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:18:02,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584258603] [2021-06-05 05:18:02,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:18:02,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:18:02,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:18:02,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:18:02,990 INFO L87 Difference]: Start difference. First operand 164447 states and 774918 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:18:06,112 INFO L93 Difference]: Finished difference Result 281393 states and 1303094 transitions. [2021-06-05 05:18:06,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 05:18:06,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:18:06,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:18:07,277 INFO L225 Difference]: With dead ends: 281393 [2021-06-05 05:18:07,277 INFO L226 Difference]: Without dead ends: 281393 [2021-06-05 05:18:07,277 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:18:08,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281393 states. [2021-06-05 05:18:14,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281393 to 185569. [2021-06-05 05:18:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185569 states, 185568 states have (on average 4.64495494912916) internal successors, (861955), 185568 states have internal predecessors, (861955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185569 states to 185569 states and 861955 transitions. [2021-06-05 05:18:15,790 INFO L78 Accepts]: Start accepts. Automaton has 185569 states and 861955 transitions. Word has length 46 [2021-06-05 05:18:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:18:15,790 INFO L482 AbstractCegarLoop]: Abstraction has 185569 states and 861955 transitions. [2021-06-05 05:18:15,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 185569 states and 861955 transitions. [2021-06-05 05:18:17,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:18:17,248 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:18:17,248 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:18:17,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 05:18:17,249 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:18:17,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:18:17,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1449595654, now seen corresponding path program 7 times [2021-06-05 05:18:17,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:18:17,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826064598] [2021-06-05 05:18:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:18:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:18:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:18:17,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:18:17,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826064598] [2021-06-05 05:18:17,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826064598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:18:17,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:18:17,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 05:18:17,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558654753] [2021-06-05 05:18:17,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 05:18:17,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:18:17,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 05:18:17,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-05 05:18:17,379 INFO L87 Difference]: Start difference. First operand 185569 states and 861955 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:20,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:18:20,145 INFO L93 Difference]: Finished difference Result 292927 states and 1358658 transitions. [2021-06-05 05:18:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 05:18:20,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-06-05 05:18:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:18:22,132 INFO L225 Difference]: With dead ends: 292927 [2021-06-05 05:18:22,133 INFO L226 Difference]: Without dead ends: 196405 [2021-06-05 05:18:22,133 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-05 05:18:23,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196405 states. [2021-06-05 05:18:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196405 to 196405. [2021-06-05 05:18:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196405 states, 196404 states have (on average 4.545100914441661) internal successors, (892676), 196404 states have internal predecessors, (892676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:30,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196405 states to 196405 states and 892676 transitions. [2021-06-05 05:18:30,421 INFO L78 Accepts]: Start accepts. Automaton has 196405 states and 892676 transitions. Word has length 46 [2021-06-05 05:18:30,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:18:30,422 INFO L482 AbstractCegarLoop]: Abstraction has 196405 states and 892676 transitions. [2021-06-05 05:18:30,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:30,423 INFO L276 IsEmpty]: Start isEmpty. Operand 196405 states and 892676 transitions. [2021-06-05 05:18:30,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:18:30,962 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:18:30,962 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:18:30,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 05:18:30,962 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:18:30,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:18:30,963 INFO L82 PathProgramCache]: Analyzing trace with hash 272315946, now seen corresponding path program 8 times [2021-06-05 05:18:30,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:18:30,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14263201] [2021-06-05 05:18:30,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:18:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:18:31,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:18:31,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:18:31,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14263201] [2021-06-05 05:18:31,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14263201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:18:31,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:18:31,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:18:31,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409470350] [2021-06-05 05:18:31,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:18:31,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:18:31,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:18:31,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:18:31,014 INFO L87 Difference]: Start difference. First operand 196405 states and 892676 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:34,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:18:34,015 INFO L93 Difference]: Finished difference Result 311447 states and 1399231 transitions. [2021-06-05 05:18:34,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 05:18:34,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:18:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:18:35,236 INFO L225 Difference]: With dead ends: 311447 [2021-06-05 05:18:35,236 INFO L226 Difference]: Without dead ends: 311255 [2021-06-05 05:18:35,236 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 29.8ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:18:37,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311255 states. [2021-06-05 05:18:42,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311255 to 207417. [2021-06-05 05:18:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207417 states, 207416 states have (on average 4.523006903999692) internal successors, (938144), 207416 states have internal predecessors, (938144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207417 states to 207417 states and 938144 transitions. [2021-06-05 05:18:44,960 INFO L78 Accepts]: Start accepts. Automaton has 207417 states and 938144 transitions. Word has length 46 [2021-06-05 05:18:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:18:44,960 INFO L482 AbstractCegarLoop]: Abstraction has 207417 states and 938144 transitions. [2021-06-05 05:18:44,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:44,960 INFO L276 IsEmpty]: Start isEmpty. Operand 207417 states and 938144 transitions. [2021-06-05 05:18:45,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:18:45,529 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:18:45,529 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:18:45,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 05:18:45,530 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:18:45,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:18:45,530 INFO L82 PathProgramCache]: Analyzing trace with hash 862533974, now seen corresponding path program 9 times [2021-06-05 05:18:45,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:18:45,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788020682] [2021-06-05 05:18:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:18:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:18:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:18:45,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:18:45,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788020682] [2021-06-05 05:18:45,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788020682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:18:45,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:18:45,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 05:18:45,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411712619] [2021-06-05 05:18:45,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 05:18:45,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:18:45,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 05:18:45,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:18:45,589 INFO L87 Difference]: Start difference. First operand 207417 states and 938144 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:18:48,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:18:48,688 INFO L93 Difference]: Finished difference Result 334168 states and 1492333 transitions. [2021-06-05 05:18:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 05:18:48,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-05 05:18:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:18:50,710 INFO L225 Difference]: With dead ends: 334168 [2021-06-05 05:18:50,710 INFO L226 Difference]: Without dead ends: 333766 [2021-06-05 05:18:50,710 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:18:51,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333766 states. [2021-06-05 05:18:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333766 to 214179. [2021-06-05 05:18:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214179 states, 214178 states have (on average 4.497025838321396) internal successors, (963164), 214178 states have internal predecessors, (963164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214179 states to 214179 states and 963164 transitions. [2021-06-05 05:19:00,414 INFO L78 Accepts]: Start accepts. Automaton has 214179 states and 963164 transitions. Word has length 46 [2021-06-05 05:19:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:19:00,414 INFO L482 AbstractCegarLoop]: Abstraction has 214179 states and 963164 transitions. [2021-06-05 05:19:00,414 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 214179 states and 963164 transitions. [2021-06-05 05:19:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:19:02,370 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:19:02,370 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:19:02,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 05:19:02,370 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:19:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:19:02,371 INFO L82 PathProgramCache]: Analyzing trace with hash -939509874, now seen corresponding path program 10 times [2021-06-05 05:19:02,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:19:02,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959644892] [2021-06-05 05:19:02,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:19:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:19:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:19:02,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:19:02,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959644892] [2021-06-05 05:19:02,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959644892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:19:02,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:19:02,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:19:02,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596182994] [2021-06-05 05:19:02,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:19:02,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:19:02,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:19:02,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:19:02,498 INFO L87 Difference]: Start difference. First operand 214179 states and 963164 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:06,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:19:06,578 INFO L93 Difference]: Finished difference Result 354188 states and 1551857 transitions. [2021-06-05 05:19:06,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 05:19:06,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:19:06,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:19:08,812 INFO L225 Difference]: With dead ends: 354188 [2021-06-05 05:19:08,813 INFO L226 Difference]: Without dead ends: 353624 [2021-06-05 05:19:08,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 70.4ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:19:11,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353624 states. [2021-06-05 05:19:18,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353624 to 224674. [2021-06-05 05:19:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224674 states, 224673 states have (on average 4.434026340503754) internal successors, (996206), 224673 states have internal predecessors, (996206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:20,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224674 states to 224674 states and 996206 transitions. [2021-06-05 05:19:20,286 INFO L78 Accepts]: Start accepts. Automaton has 224674 states and 996206 transitions. Word has length 46 [2021-06-05 05:19:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:19:20,286 INFO L482 AbstractCegarLoop]: Abstraction has 224674 states and 996206 transitions. [2021-06-05 05:19:20,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 224674 states and 996206 transitions. [2021-06-05 05:19:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:19:20,873 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:19:20,873 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:19:20,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 05:19:20,873 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:19:20,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:19:20,874 INFO L82 PathProgramCache]: Analyzing trace with hash 642236716, now seen corresponding path program 11 times [2021-06-05 05:19:20,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:19:20,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529267958] [2021-06-05 05:19:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:19:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:19:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:19:20,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:19:20,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529267958] [2021-06-05 05:19:20,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529267958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:19:20,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:19:20,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:19:20,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567789523] [2021-06-05 05:19:20,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:19:20,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:19:20,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:19:20,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:19:20,926 INFO L87 Difference]: Start difference. First operand 224674 states and 996206 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:24,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:19:24,047 INFO L93 Difference]: Finished difference Result 313135 states and 1375062 transitions. [2021-06-05 05:19:24,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:19:24,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:19:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:19:26,011 INFO L225 Difference]: With dead ends: 313135 [2021-06-05 05:19:26,011 INFO L226 Difference]: Without dead ends: 313027 [2021-06-05 05:19:26,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:19:27,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313027 states. [2021-06-05 05:19:33,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313027 to 222693. [2021-06-05 05:19:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222693 states, 222692 states have (on average 4.4333384225746775) internal successors, (987269), 222692 states have internal predecessors, (987269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222693 states to 222693 states and 987269 transitions. [2021-06-05 05:19:35,357 INFO L78 Accepts]: Start accepts. Automaton has 222693 states and 987269 transitions. Word has length 46 [2021-06-05 05:19:35,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:19:35,357 INFO L482 AbstractCegarLoop]: Abstraction has 222693 states and 987269 transitions. [2021-06-05 05:19:35,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 222693 states and 987269 transitions. [2021-06-05 05:19:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:19:35,940 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:19:35,940 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:19:35,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 05:19:35,941 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:19:35,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:19:35,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1853602572, now seen corresponding path program 12 times [2021-06-05 05:19:35,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:19:35,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721604328] [2021-06-05 05:19:35,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:19:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:19:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:19:35,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:19:35,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721604328] [2021-06-05 05:19:35,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721604328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:19:35,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:19:35,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 05:19:35,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696481256] [2021-06-05 05:19:35,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 05:19:35,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:19:35,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 05:19:35,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 05:19:35,990 INFO L87 Difference]: Start difference. First operand 222693 states and 987269 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:40,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:19:40,036 INFO L93 Difference]: Finished difference Result 393699 states and 1713546 transitions. [2021-06-05 05:19:40,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 05:19:40,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-06-05 05:19:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:19:43,018 INFO L225 Difference]: With dead ends: 393699 [2021-06-05 05:19:43,019 INFO L226 Difference]: Without dead ends: 393021 [2021-06-05 05:19:43,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 20.3ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:19:44,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393021 states. [2021-06-05 05:19:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393021 to 222310. [2021-06-05 05:19:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222310 states, 222309 states have (on average 4.428525160924659) internal successors, (984501), 222309 states have internal predecessors, (984501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222310 states to 222310 states and 984501 transitions. [2021-06-05 05:19:54,059 INFO L78 Accepts]: Start accepts. Automaton has 222310 states and 984501 transitions. Word has length 46 [2021-06-05 05:19:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:19:54,059 INFO L482 AbstractCegarLoop]: Abstraction has 222310 states and 984501 transitions. [2021-06-05 05:19:54,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 222310 states and 984501 transitions. [2021-06-05 05:19:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:19:55,508 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:19:55,508 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:19:55,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 05:19:55,508 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:19:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:19:55,509 INFO L82 PathProgramCache]: Analyzing trace with hash 48602460, now seen corresponding path program 13 times [2021-06-05 05:19:55,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:19:55,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260755178] [2021-06-05 05:19:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:19:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:19:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:19:55,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:19:55,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260755178] [2021-06-05 05:19:55,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260755178] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:19:55,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:19:55,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 05:19:55,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342433759] [2021-06-05 05:19:55,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 05:19:55,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:19:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 05:19:55,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 05:19:55,570 INFO L87 Difference]: Start difference. First operand 222310 states and 984501 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:19:58,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:19:58,697 INFO L93 Difference]: Finished difference Result 389126 states and 1691004 transitions. [2021-06-05 05:19:58,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 05:19:58,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-06-05 05:19:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:20:00,124 INFO L225 Difference]: With dead ends: 389126 [2021-06-05 05:20:00,124 INFO L226 Difference]: Without dead ends: 388292 [2021-06-05 05:20:00,124 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.3ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:20:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388292 states. [2021-06-05 05:20:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388292 to 218179. [2021-06-05 05:20:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218179 states, 218178 states have (on average 4.420143185839086) internal successors, (964378), 218178 states have internal predecessors, (964378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218179 states to 218179 states and 964378 transitions. [2021-06-05 05:20:10,806 INFO L78 Accepts]: Start accepts. Automaton has 218179 states and 964378 transitions. Word has length 46 [2021-06-05 05:20:10,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:20:10,806 INFO L482 AbstractCegarLoop]: Abstraction has 218179 states and 964378 transitions. [2021-06-05 05:20:10,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 218179 states and 964378 transitions. [2021-06-05 05:20:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:20:11,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:20:11,393 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:20:11,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 05:20:11,394 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:20:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:20:11,394 INFO L82 PathProgramCache]: Analyzing trace with hash 136450120, now seen corresponding path program 14 times [2021-06-05 05:20:11,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:20:11,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571384867] [2021-06-05 05:20:11,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:20:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:20:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:20:11,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:20:11,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571384867] [2021-06-05 05:20:11,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571384867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:20:11,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:20:11,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 05:20:11,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455446698] [2021-06-05 05:20:11,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 05:20:11,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:20:11,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 05:20:11,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-05 05:20:11,445 INFO L87 Difference]: Start difference. First operand 218179 states and 964378 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:14,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:20:14,417 INFO L93 Difference]: Finished difference Result 346552 states and 1495008 transitions. [2021-06-05 05:20:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 05:20:14,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-06-05 05:20:14,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:20:16,503 INFO L225 Difference]: With dead ends: 346552 [2021-06-05 05:20:16,503 INFO L226 Difference]: Without dead ends: 345856 [2021-06-05 05:20:16,503 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.0ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:20:17,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345856 states. [2021-06-05 05:20:23,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345856 to 215344. [2021-06-05 05:20:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215344 states, 215343 states have (on average 4.33035204301974) internal successors, (932511), 215343 states have internal predecessors, (932511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215344 states to 215344 states and 932511 transitions. [2021-06-05 05:20:26,521 INFO L78 Accepts]: Start accepts. Automaton has 215344 states and 932511 transitions. Word has length 46 [2021-06-05 05:20:26,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:20:26,523 INFO L482 AbstractCegarLoop]: Abstraction has 215344 states and 932511 transitions. [2021-06-05 05:20:26,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:26,523 INFO L276 IsEmpty]: Start isEmpty. Operand 215344 states and 932511 transitions. [2021-06-05 05:20:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:20:27,583 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:20:27,583 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:20:27,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 05:20:27,583 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:20:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:20:27,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1139991830, now seen corresponding path program 15 times [2021-06-05 05:20:27,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:20:27,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027589042] [2021-06-05 05:20:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:20:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:20:27,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:20:27,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:20:27,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027589042] [2021-06-05 05:20:27,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027589042] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:20:27,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:20:27,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 05:20:27,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500827684] [2021-06-05 05:20:27,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 05:20:27,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:20:27,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 05:20:27,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:20:27,694 INFO L87 Difference]: Start difference. First operand 215344 states and 932511 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:20:31,277 INFO L93 Difference]: Finished difference Result 325590 states and 1394296 transitions. [2021-06-05 05:20:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 05:20:31,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-05 05:20:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:20:33,362 INFO L225 Difference]: With dead ends: 325590 [2021-06-05 05:20:33,362 INFO L226 Difference]: Without dead ends: 324958 [2021-06-05 05:20:33,364 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:20:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324958 states. [2021-06-05 05:20:42,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324958 to 210014. [2021-06-05 05:20:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210014 states, 210013 states have (on average 4.320808711841648) internal successors, (907426), 210013 states have internal predecessors, (907426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210014 states to 210014 states and 907426 transitions. [2021-06-05 05:20:43,568 INFO L78 Accepts]: Start accepts. Automaton has 210014 states and 907426 transitions. Word has length 46 [2021-06-05 05:20:43,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:20:43,569 INFO L482 AbstractCegarLoop]: Abstraction has 210014 states and 907426 transitions. [2021-06-05 05:20:43,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:43,569 INFO L276 IsEmpty]: Start isEmpty. Operand 210014 states and 907426 transitions. [2021-06-05 05:20:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:20:44,923 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:20:44,923 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:20:44,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 05:20:44,923 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:20:44,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:20:44,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1171918840, now seen corresponding path program 16 times [2021-06-05 05:20:44,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:20:44,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697875958] [2021-06-05 05:20:44,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:20:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:20:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:20:44,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:20:44,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697875958] [2021-06-05 05:20:44,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697875958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:20:44,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:20:44,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:20:44,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133693586] [2021-06-05 05:20:44,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:20:44,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:20:44,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:20:44,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:20:44,971 INFO L87 Difference]: Start difference. First operand 210014 states and 907426 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:47,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:20:47,213 INFO L93 Difference]: Finished difference Result 316757 states and 1325452 transitions. [2021-06-05 05:20:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:20:47,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:20:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:20:49,039 INFO L225 Difference]: With dead ends: 316757 [2021-06-05 05:20:49,040 INFO L226 Difference]: Without dead ends: 314453 [2021-06-05 05:20:49,040 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 40.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:20:49,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314453 states. [2021-06-05 05:20:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314453 to 209291. [2021-06-05 05:20:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209291 states, 209290 states have (on average 4.209207319986621) internal successors, (880945), 209290 states have internal predecessors, (880945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209291 states to 209291 states and 880945 transitions. [2021-06-05 05:20:57,826 INFO L78 Accepts]: Start accepts. Automaton has 209291 states and 880945 transitions. Word has length 46 [2021-06-05 05:20:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:20:57,826 INFO L482 AbstractCegarLoop]: Abstraction has 209291 states and 880945 transitions. [2021-06-05 05:20:57,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:20:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand 209291 states and 880945 transitions. [2021-06-05 05:20:58,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:20:58,347 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:20:58,347 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:20:58,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 05:20:58,347 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:20:58,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:20:58,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1000072394, now seen corresponding path program 17 times [2021-06-05 05:20:58,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:20:58,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285305176] [2021-06-05 05:20:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:20:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:20:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:20:58,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:20:58,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285305176] [2021-06-05 05:20:58,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285305176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:20:58,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:20:58,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 05:20:58,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414724613] [2021-06-05 05:20:58,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 05:20:58,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:20:58,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 05:20:58,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 05:20:58,393 INFO L87 Difference]: Start difference. First operand 209291 states and 880945 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:01,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:21:01,652 INFO L93 Difference]: Finished difference Result 301671 states and 1254865 transitions. [2021-06-05 05:21:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 05:21:01,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-05 05:21:01,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:21:03,552 INFO L225 Difference]: With dead ends: 301671 [2021-06-05 05:21:03,552 INFO L226 Difference]: Without dead ends: 300815 [2021-06-05 05:21:03,552 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:21:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300815 states. [2021-06-05 05:21:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300815 to 205867. [2021-06-05 05:21:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205867 states, 205866 states have (on average 4.184071191940388) internal successors, (861358), 205866 states have internal predecessors, (861358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205867 states to 205867 states and 861358 transitions. [2021-06-05 05:21:12,562 INFO L78 Accepts]: Start accepts. Automaton has 205867 states and 861358 transitions. Word has length 46 [2021-06-05 05:21:12,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:21:12,562 INFO L482 AbstractCegarLoop]: Abstraction has 205867 states and 861358 transitions. [2021-06-05 05:21:12,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 205867 states and 861358 transitions. [2021-06-05 05:21:13,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:21:13,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:21:13,068 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:21:13,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 05:21:13,068 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:21:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:21:13,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1790180840, now seen corresponding path program 18 times [2021-06-05 05:21:13,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:21:13,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317923096] [2021-06-05 05:21:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:21:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:21:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:21:13,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:21:13,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317923096] [2021-06-05 05:21:13,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317923096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:21:13,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:21:13,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:21:13,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287001077] [2021-06-05 05:21:13,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:21:13,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:21:13,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:21:13,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:21:13,124 INFO L87 Difference]: Start difference. First operand 205867 states and 861358 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:21:15,904 INFO L93 Difference]: Finished difference Result 301500 states and 1218655 transitions. [2021-06-05 05:21:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:21:15,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:21:15,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:21:16,939 INFO L225 Difference]: With dead ends: 301500 [2021-06-05 05:21:16,939 INFO L226 Difference]: Without dead ends: 298930 [2021-06-05 05:21:16,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:21:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298930 states. [2021-06-05 05:21:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298930 to 203045. [2021-06-05 05:21:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203045 states, 203044 states have (on average 4.065946297354268) internal successors, (825566), 203044 states have internal predecessors, (825566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203045 states to 203045 states and 825566 transitions. [2021-06-05 05:21:24,973 INFO L78 Accepts]: Start accepts. Automaton has 203045 states and 825566 transitions. Word has length 46 [2021-06-05 05:21:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:21:24,973 INFO L482 AbstractCegarLoop]: Abstraction has 203045 states and 825566 transitions. [2021-06-05 05:21:24,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:24,974 INFO L276 IsEmpty]: Start isEmpty. Operand 203045 states and 825566 transitions. [2021-06-05 05:21:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:21:25,471 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:21:25,471 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:21:25,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 05:21:25,471 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:21:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:21:25,471 INFO L82 PathProgramCache]: Analyzing trace with hash 709518024, now seen corresponding path program 19 times [2021-06-05 05:21:25,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:21:25,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487483141] [2021-06-05 05:21:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:21:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:21:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:21:25,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:21:25,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487483141] [2021-06-05 05:21:25,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487483141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:21:25,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:21:25,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:21:25,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22048112] [2021-06-05 05:21:25,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:21:25,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:21:25,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:21:25,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:21:25,514 INFO L87 Difference]: Start difference. First operand 203045 states and 825566 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:28,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:21:28,164 INFO L93 Difference]: Finished difference Result 288060 states and 1146724 transitions. [2021-06-05 05:21:28,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:21:28,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:21:28,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:21:29,217 INFO L225 Difference]: With dead ends: 288060 [2021-06-05 05:21:29,218 INFO L226 Difference]: Without dead ends: 284768 [2021-06-05 05:21:29,218 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 43.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:21:30,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284768 states. [2021-06-05 05:21:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284768 to 191781. [2021-06-05 05:21:35,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191781 states, 191780 states have (on average 4.031426634685578) internal successors, (773147), 191780 states have internal predecessors, (773147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191781 states to 191781 states and 773147 transitions. [2021-06-05 05:21:37,394 INFO L78 Accepts]: Start accepts. Automaton has 191781 states and 773147 transitions. Word has length 46 [2021-06-05 05:21:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:21:37,394 INFO L482 AbstractCegarLoop]: Abstraction has 191781 states and 773147 transitions. [2021-06-05 05:21:37,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:37,394 INFO L276 IsEmpty]: Start isEmpty. Operand 191781 states and 773147 transitions. [2021-06-05 05:21:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:21:37,963 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:21:37,963 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:21:37,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 05:21:37,963 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:21:37,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:21:37,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1639152820, now seen corresponding path program 20 times [2021-06-05 05:21:37,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:21:37,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362925156] [2021-06-05 05:21:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:21:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:21:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:21:38,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:21:38,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362925156] [2021-06-05 05:21:38,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362925156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:21:38,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:21:38,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:21:38,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810310206] [2021-06-05 05:21:38,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:21:38,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:21:38,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:21:38,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:21:38,025 INFO L87 Difference]: Start difference. First operand 191781 states and 773147 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:40,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:21:40,194 INFO L93 Difference]: Finished difference Result 289421 states and 1160347 transitions. [2021-06-05 05:21:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:21:40,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:21:40,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:21:42,220 INFO L225 Difference]: With dead ends: 289421 [2021-06-05 05:21:42,220 INFO L226 Difference]: Without dead ends: 289101 [2021-06-05 05:21:42,220 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 41.7ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:21:43,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289101 states. [2021-06-05 05:21:49,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289101 to 192581. [2021-06-05 05:21:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192581 states, 192580 states have (on average 4.028969778793229) internal successors, (775899), 192580 states have internal predecessors, (775899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192581 states to 192581 states and 775899 transitions. [2021-06-05 05:21:51,260 INFO L78 Accepts]: Start accepts. Automaton has 192581 states and 775899 transitions. Word has length 46 [2021-06-05 05:21:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:21:51,260 INFO L482 AbstractCegarLoop]: Abstraction has 192581 states and 775899 transitions. [2021-06-05 05:21:51,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 192581 states and 775899 transitions. [2021-06-05 05:21:51,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:21:51,696 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:21:51,696 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:21:51,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 05:21:51,697 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:21:51,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:21:51,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1671079830, now seen corresponding path program 21 times [2021-06-05 05:21:51,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:21:51,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436972102] [2021-06-05 05:21:51,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:21:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:21:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:21:51,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:21:51,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436972102] [2021-06-05 05:21:51,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436972102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:21:51,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:21:51,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:21:51,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703714443] [2021-06-05 05:21:51,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:21:51,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:21:51,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:21:51,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:21:51,753 INFO L87 Difference]: Start difference. First operand 192581 states and 775899 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:21:54,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:21:54,654 INFO L93 Difference]: Finished difference Result 289605 states and 1158403 transitions. [2021-06-05 05:21:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 05:21:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:21:54,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:21:55,623 INFO L225 Difference]: With dead ends: 289605 [2021-06-05 05:21:55,623 INFO L226 Difference]: Without dead ends: 287589 [2021-06-05 05:21:55,623 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 41.3ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:21:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287589 states. [2021-06-05 05:22:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287589 to 190411. [2021-06-05 05:22:01,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190411 states, 190410 states have (on average 4.019452759834042) internal successors, (765344), 190410 states have internal predecessors, (765344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190411 states to 190411 states and 765344 transitions. [2021-06-05 05:22:03,326 INFO L78 Accepts]: Start accepts. Automaton has 190411 states and 765344 transitions. Word has length 46 [2021-06-05 05:22:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:22:03,326 INFO L482 AbstractCegarLoop]: Abstraction has 190411 states and 765344 transitions. [2021-06-05 05:22:03,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 190411 states and 765344 transitions. [2021-06-05 05:22:03,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:22:03,783 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:22:03,784 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:22:03,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 05:22:03,784 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:22:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:22:03,784 INFO L82 PathProgramCache]: Analyzing trace with hash -300064282, now seen corresponding path program 22 times [2021-06-05 05:22:03,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:22:03,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078235007] [2021-06-05 05:22:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:22:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:22:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:22:03,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:22:03,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078235007] [2021-06-05 05:22:03,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078235007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:22:03,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:22:03,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:22:03,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992122589] [2021-06-05 05:22:03,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:22:03,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:22:03,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:22:03,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:22:03,840 INFO L87 Difference]: Start difference. First operand 190411 states and 765344 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:06,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:22:06,220 INFO L93 Difference]: Finished difference Result 295333 states and 1175576 transitions. [2021-06-05 05:22:06,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 05:22:06,220 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:22:06,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:22:07,873 INFO L225 Difference]: With dead ends: 295333 [2021-06-05 05:22:07,873 INFO L226 Difference]: Without dead ends: 289109 [2021-06-05 05:22:07,874 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 78.5ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 05:22:08,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289109 states. [2021-06-05 05:22:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289109 to 197773. [2021-06-05 05:22:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197773 states, 197772 states have (on average 3.9816859818376718) internal successors, (787466), 197772 states have internal predecessors, (787466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197773 states to 197773 states and 787466 transitions. [2021-06-05 05:22:15,315 INFO L78 Accepts]: Start accepts. Automaton has 197773 states and 787466 transitions. Word has length 46 [2021-06-05 05:22:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:22:15,316 INFO L482 AbstractCegarLoop]: Abstraction has 197773 states and 787466 transitions. [2021-06-05 05:22:15,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 197773 states and 787466 transitions. [2021-06-05 05:22:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:22:16,682 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:22:16,682 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:22:16,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 05:22:16,682 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:22:16,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:22:16,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1536830164, now seen corresponding path program 23 times [2021-06-05 05:22:16,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:22:16,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055859008] [2021-06-05 05:22:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:22:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:22:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:22:16,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:22:16,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055859008] [2021-06-05 05:22:16,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055859008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:22:16,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:22:16,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:22:16,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078956423] [2021-06-05 05:22:16,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:22:16,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:22:16,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:22:16,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:22:16,726 INFO L87 Difference]: Start difference. First operand 197773 states and 787466 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:18,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:22:18,874 INFO L93 Difference]: Finished difference Result 299086 states and 1182852 transitions. [2021-06-05 05:22:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:22:18,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:22:18,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:22:20,391 INFO L225 Difference]: With dead ends: 299086 [2021-06-05 05:22:20,391 INFO L226 Difference]: Without dead ends: 298566 [2021-06-05 05:22:20,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:22:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298566 states. [2021-06-05 05:22:25,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298566 to 198823. [2021-06-05 05:22:26,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198823 states, 198822 states have (on average 3.9825371437768458) internal successors, (791816), 198822 states have internal predecessors, (791816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198823 states to 198823 states and 791816 transitions. [2021-06-05 05:22:28,733 INFO L78 Accepts]: Start accepts. Automaton has 198823 states and 791816 transitions. Word has length 46 [2021-06-05 05:22:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:22:28,733 INFO L482 AbstractCegarLoop]: Abstraction has 198823 states and 791816 transitions. [2021-06-05 05:22:28,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 198823 states and 791816 transitions. [2021-06-05 05:22:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:22:29,378 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:22:29,378 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:22:29,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 05:22:29,379 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:22:29,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:22:29,379 INFO L82 PathProgramCache]: Analyzing trace with hash -746721718, now seen corresponding path program 24 times [2021-06-05 05:22:29,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:22:29,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877852643] [2021-06-05 05:22:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:22:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:22:29,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:22:29,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:22:29,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877852643] [2021-06-05 05:22:29,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877852643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:22:29,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:22:29,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:22:29,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19355863] [2021-06-05 05:22:29,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:22:29,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:22:29,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:22:29,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:22:29,495 INFO L87 Difference]: Start difference. First operand 198823 states and 791816 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:32,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:22:32,662 INFO L93 Difference]: Finished difference Result 294761 states and 1162068 transitions. [2021-06-05 05:22:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 05:22:32,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:22:32,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:22:34,366 INFO L225 Difference]: With dead ends: 294761 [2021-06-05 05:22:34,367 INFO L226 Difference]: Without dead ends: 292673 [2021-06-05 05:22:34,367 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 70.8ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:22:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292673 states. [2021-06-05 05:22:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292673 to 193969. [2021-06-05 05:22:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193969 states, 193968 states have (on average 3.976387857790976) internal successors, (771292), 193968 states have internal predecessors, (771292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193969 states to 193969 states and 771292 transitions. [2021-06-05 05:22:43,268 INFO L78 Accepts]: Start accepts. Automaton has 193969 states and 771292 transitions. Word has length 46 [2021-06-05 05:22:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:22:43,268 INFO L482 AbstractCegarLoop]: Abstraction has 193969 states and 771292 transitions. [2021-06-05 05:22:43,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 193969 states and 771292 transitions. [2021-06-05 05:22:43,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:22:43,747 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:22:43,747 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:22:43,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 05:22:43,747 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:22:43,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:22:43,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1798406086, now seen corresponding path program 25 times [2021-06-05 05:22:43,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:22:43,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434590310] [2021-06-05 05:22:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:22:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:22:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:22:43,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:22:43,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434590310] [2021-06-05 05:22:43,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434590310] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:22:43,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:22:43,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:22:43,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026782007] [2021-06-05 05:22:43,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:22:43,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:22:43,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:22:43,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:22:43,799 INFO L87 Difference]: Start difference. First operand 193969 states and 771292 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:46,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:22:46,159 INFO L93 Difference]: Finished difference Result 293030 states and 1142523 transitions. [2021-06-05 05:22:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 05:22:46,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:22:46,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:22:47,739 INFO L225 Difference]: With dead ends: 293030 [2021-06-05 05:22:47,739 INFO L226 Difference]: Without dead ends: 291722 [2021-06-05 05:22:47,739 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 70.3ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 05:22:48,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291722 states. [2021-06-05 05:22:53,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291722 to 200246. [2021-06-05 05:22:54,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200246 states, 200245 states have (on average 3.9184449049913854) internal successors, (784649), 200245 states have internal predecessors, (784649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200246 states to 200246 states and 784649 transitions. [2021-06-05 05:22:55,013 INFO L78 Accepts]: Start accepts. Automaton has 200246 states and 784649 transitions. Word has length 46 [2021-06-05 05:22:55,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:22:55,013 INFO L482 AbstractCegarLoop]: Abstraction has 200246 states and 784649 transitions. [2021-06-05 05:22:55,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 200246 states and 784649 transitions. [2021-06-05 05:22:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:22:56,331 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:22:56,331 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:22:56,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 05:22:56,332 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:22:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:22:56,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1370272520, now seen corresponding path program 26 times [2021-06-05 05:22:56,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:22:56,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619101649] [2021-06-05 05:22:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:22:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:22:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:22:56,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:22:56,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619101649] [2021-06-05 05:22:56,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619101649] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:22:56,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:22:56,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:22:56,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810062937] [2021-06-05 05:22:56,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:22:56,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:22:56,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:22:56,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:22:56,403 INFO L87 Difference]: Start difference. First operand 200246 states and 784649 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:22:58,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:22:58,533 INFO L93 Difference]: Finished difference Result 293831 states and 1136141 transitions. [2021-06-05 05:22:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 05:22:58,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:22:58,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:22:59,449 INFO L225 Difference]: With dead ends: 293831 [2021-06-05 05:22:59,449 INFO L226 Difference]: Without dead ends: 290963 [2021-06-05 05:22:59,449 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 52.4ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:23:00,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290963 states. [2021-06-05 05:23:05,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290963 to 193515. [2021-06-05 05:23:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193515 states, 193514 states have (on average 3.905562388250979) internal successors, (755781), 193514 states have internal predecessors, (755781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:07,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193515 states to 193515 states and 755781 transitions. [2021-06-05 05:23:07,247 INFO L78 Accepts]: Start accepts. Automaton has 193515 states and 755781 transitions. Word has length 46 [2021-06-05 05:23:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:23:07,247 INFO L482 AbstractCegarLoop]: Abstraction has 193515 states and 755781 transitions. [2021-06-05 05:23:07,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 193515 states and 755781 transitions. [2021-06-05 05:23:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:23:08,557 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:23:08,557 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:23:08,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 05:23:08,557 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:23:08,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:23:08,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2029550822, now seen corresponding path program 27 times [2021-06-05 05:23:08,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:23:08,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942486808] [2021-06-05 05:23:08,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:23:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:23:08,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:23:08,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:23:08,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942486808] [2021-06-05 05:23:08,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942486808] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:23:08,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:23:08,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:23:08,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360044235] [2021-06-05 05:23:08,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:23:08,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:23:08,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:23:08,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:23:08,643 INFO L87 Difference]: Start difference. First operand 193515 states and 755781 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:23:11,434 INFO L93 Difference]: Finished difference Result 283290 states and 1078797 transitions. [2021-06-05 05:23:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 05:23:11,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:23:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:23:12,715 INFO L225 Difference]: With dead ends: 283290 [2021-06-05 05:23:12,715 INFO L226 Difference]: Without dead ends: 280266 [2021-06-05 05:23:12,715 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 87.1ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 05:23:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280266 states. [2021-06-05 05:23:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280266 to 193510. [2021-06-05 05:23:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193510 states, 193509 states have (on average 3.849350676195939) internal successors, (744884), 193509 states have internal predecessors, (744884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:21,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193510 states to 193510 states and 744884 transitions. [2021-06-05 05:23:21,182 INFO L78 Accepts]: Start accepts. Automaton has 193510 states and 744884 transitions. Word has length 46 [2021-06-05 05:23:21,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:23:21,182 INFO L482 AbstractCegarLoop]: Abstraction has 193510 states and 744884 transitions. [2021-06-05 05:23:21,182 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:21,182 INFO L276 IsEmpty]: Start isEmpty. Operand 193510 states and 744884 transitions. [2021-06-05 05:23:21,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:23:21,619 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:23:21,619 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:23:21,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 05:23:21,619 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:23:21,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:23:21,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1260957358, now seen corresponding path program 28 times [2021-06-05 05:23:21,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:23:21,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274844224] [2021-06-05 05:23:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:23:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:23:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:23:21,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:23:21,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274844224] [2021-06-05 05:23:21,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274844224] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:23:21,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:23:21,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:23:21,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392475810] [2021-06-05 05:23:21,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:23:21,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:23:21,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:23:21,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:23:21,673 INFO L87 Difference]: Start difference. First operand 193510 states and 744884 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:23:23,812 INFO L93 Difference]: Finished difference Result 270531 states and 1004554 transitions. [2021-06-05 05:23:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 05:23:23,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:23:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:23:25,179 INFO L225 Difference]: With dead ends: 270531 [2021-06-05 05:23:25,179 INFO L226 Difference]: Without dead ends: 262632 [2021-06-05 05:23:25,179 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 73.6ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 05:23:25,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262632 states. [2021-06-05 05:23:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262632 to 177887. [2021-06-05 05:23:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177887 states, 177886 states have (on average 3.7640623770279844) internal successors, (669574), 177886 states have internal predecessors, (669574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177887 states to 177887 states and 669574 transitions. [2021-06-05 05:23:31,436 INFO L78 Accepts]: Start accepts. Automaton has 177887 states and 669574 transitions. Word has length 46 [2021-06-05 05:23:31,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:23:31,436 INFO L482 AbstractCegarLoop]: Abstraction has 177887 states and 669574 transitions. [2021-06-05 05:23:31,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:31,436 INFO L276 IsEmpty]: Start isEmpty. Operand 177887 states and 669574 transitions. [2021-06-05 05:23:31,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:23:31,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:23:31,930 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:23:31,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 05:23:31,930 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:23:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:23:31,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1334758820, now seen corresponding path program 29 times [2021-06-05 05:23:31,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:23:31,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089286665] [2021-06-05 05:23:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:23:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:23:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:23:31,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:23:31,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089286665] [2021-06-05 05:23:31,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089286665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:23:31,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:23:31,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:23:31,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357712530] [2021-06-05 05:23:31,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:23:31,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:23:31,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:23:31,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:23:31,978 INFO L87 Difference]: Start difference. First operand 177887 states and 669574 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:33,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:23:33,996 INFO L93 Difference]: Finished difference Result 248384 states and 919697 transitions. [2021-06-05 05:23:33,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 05:23:33,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:23:33,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:23:34,678 INFO L225 Difference]: With dead ends: 248384 [2021-06-05 05:23:34,678 INFO L226 Difference]: Without dead ends: 248064 [2021-06-05 05:23:34,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 43.4ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:23:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248064 states. [2021-06-05 05:23:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248064 to 177855. [2021-06-05 05:23:39,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177855 states, 177854 states have (on average 3.7614110450144502) internal successors, (668982), 177854 states have internal predecessors, (668982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177855 states to 177855 states and 668982 transitions. [2021-06-05 05:23:40,924 INFO L78 Accepts]: Start accepts. Automaton has 177855 states and 668982 transitions. Word has length 46 [2021-06-05 05:23:40,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:23:40,924 INFO L482 AbstractCegarLoop]: Abstraction has 177855 states and 668982 transitions. [2021-06-05 05:23:40,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:40,924 INFO L276 IsEmpty]: Start isEmpty. Operand 177855 states and 668982 transitions. [2021-06-05 05:23:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:23:41,314 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:23:41,314 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:23:41,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 05:23:41,314 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:23:41,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:23:41,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1029432924, now seen corresponding path program 30 times [2021-06-05 05:23:41,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:23:41,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097129874] [2021-06-05 05:23:41,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:23:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:23:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:23:41,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:23:41,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097129874] [2021-06-05 05:23:41,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097129874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:23:41,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:23:41,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:23:41,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657900735] [2021-06-05 05:23:41,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:23:41,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:23:41,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:23:41,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:23:41,362 INFO L87 Difference]: Start difference. First operand 177855 states and 668982 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:43,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:23:43,446 INFO L93 Difference]: Finished difference Result 251976 states and 930539 transitions. [2021-06-05 05:23:43,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 05:23:43,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:23:43,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:23:44,769 INFO L225 Difference]: With dead ends: 251976 [2021-06-05 05:23:44,769 INFO L226 Difference]: Without dead ends: 249960 [2021-06-05 05:23:44,770 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 59.1ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-06-05 05:23:45,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249960 states. [2021-06-05 05:23:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249960 to 176831. [2021-06-05 05:23:50,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176831 states, 176830 states have (on average 3.750076344511678) internal successors, (663126), 176830 states have internal predecessors, (663126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176831 states to 176831 states and 663126 transitions. [2021-06-05 05:23:52,563 INFO L78 Accepts]: Start accepts. Automaton has 176831 states and 663126 transitions. Word has length 46 [2021-06-05 05:23:52,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:23:52,563 INFO L482 AbstractCegarLoop]: Abstraction has 176831 states and 663126 transitions. [2021-06-05 05:23:52,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:52,564 INFO L276 IsEmpty]: Start isEmpty. Operand 176831 states and 663126 transitions. [2021-06-05 05:23:53,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:23:53,458 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:23:53,458 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:23:53,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 05:23:53,458 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:23:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:23:53,458 INFO L82 PathProgramCache]: Analyzing trace with hash -75273820, now seen corresponding path program 31 times [2021-06-05 05:23:53,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:23:53,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299278500] [2021-06-05 05:23:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:23:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:23:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:23:53,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:23:53,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299278500] [2021-06-05 05:23:53,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299278500] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:23:53,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:23:53,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:23:53,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966609544] [2021-06-05 05:23:53,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:23:53,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:23:53,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:23:53,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:23:53,590 INFO L87 Difference]: Start difference. First operand 176831 states and 663126 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:23:55,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:23:55,743 INFO L93 Difference]: Finished difference Result 243984 states and 901479 transitions. [2021-06-05 05:23:55,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 05:23:55,743 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-05 05:23:55,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:23:56,401 INFO L225 Difference]: With dead ends: 243984 [2021-06-05 05:23:56,401 INFO L226 Difference]: Without dead ends: 237760 [2021-06-05 05:23:56,401 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 115.4ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-05 05:23:57,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237760 states. [2021-06-05 05:24:01,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237760 to 173831. [2021-06-05 05:24:01,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173831 states, 173830 states have (on average 3.735304607950296) internal successors, (649308), 173830 states have internal predecessors, (649308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:02,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173831 states to 173831 states and 649308 transitions. [2021-06-05 05:24:02,497 INFO L78 Accepts]: Start accepts. Automaton has 173831 states and 649308 transitions. Word has length 46 [2021-06-05 05:24:02,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:24:02,497 INFO L482 AbstractCegarLoop]: Abstraction has 173831 states and 649308 transitions. [2021-06-05 05:24:02,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:02,497 INFO L276 IsEmpty]: Start isEmpty. Operand 173831 states and 649308 transitions. [2021-06-05 05:24:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:24:02,901 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:24:02,901 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:24:02,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 05:24:02,901 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:24:02,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:24:02,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1508962954, now seen corresponding path program 32 times [2021-06-05 05:24:02,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:24:02,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323580661] [2021-06-05 05:24:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:24:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:24:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:24:02,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:24:02,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323580661] [2021-06-05 05:24:02,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323580661] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:24:02,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:24:02,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:24:02,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544987956] [2021-06-05 05:24:02,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:24:02,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:24:02,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:24:02,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:24:02,972 INFO L87 Difference]: Start difference. First operand 173831 states and 649308 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:24:05,151 INFO L93 Difference]: Finished difference Result 243411 states and 895074 transitions. [2021-06-05 05:24:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:24:05,152 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-05 05:24:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:24:06,429 INFO L225 Difference]: With dead ends: 243411 [2021-06-05 05:24:06,429 INFO L226 Difference]: Without dead ends: 233779 [2021-06-05 05:24:06,429 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 111.4ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:24:07,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233779 states. [2021-06-05 05:24:11,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233779 to 176360. [2021-06-05 05:24:11,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176360 states, 176359 states have (on average 3.7175307185910555) internal successors, (655620), 176359 states have internal predecessors, (655620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176360 states to 176360 states and 655620 transitions. [2021-06-05 05:24:11,920 INFO L78 Accepts]: Start accepts. Automaton has 176360 states and 655620 transitions. Word has length 46 [2021-06-05 05:24:11,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:24:11,920 INFO L482 AbstractCegarLoop]: Abstraction has 176360 states and 655620 transitions. [2021-06-05 05:24:11,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:11,920 INFO L276 IsEmpty]: Start isEmpty. Operand 176360 states and 655620 transitions. [2021-06-05 05:24:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:24:13,089 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:24:13,089 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:24:13,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 05:24:13,089 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:24:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:24:13,090 INFO L82 PathProgramCache]: Analyzing trace with hash 61777796, now seen corresponding path program 33 times [2021-06-05 05:24:13,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:24:13,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198810235] [2021-06-05 05:24:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:24:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:24:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:24:13,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:24:13,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198810235] [2021-06-05 05:24:13,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198810235] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:24:13,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:24:13,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:24:13,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135772006] [2021-06-05 05:24:13,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:24:13,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:24:13,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:24:13,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:24:13,137 INFO L87 Difference]: Start difference. First operand 176360 states and 655620 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:24:15,031 INFO L93 Difference]: Finished difference Result 252502 states and 922596 transitions. [2021-06-05 05:24:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 05:24:15,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:24:15,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:24:15,821 INFO L225 Difference]: With dead ends: 252502 [2021-06-05 05:24:15,822 INFO L226 Difference]: Without dead ends: 252270 [2021-06-05 05:24:15,822 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 46.4ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:24:16,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252270 states. [2021-06-05 05:24:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252270 to 176292. [2021-06-05 05:24:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176292 states, 176291 states have (on average 3.7161511364732176) internal successors, (655124), 176291 states have internal predecessors, (655124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176292 states to 176292 states and 655124 transitions. [2021-06-05 05:24:22,060 INFO L78 Accepts]: Start accepts. Automaton has 176292 states and 655124 transitions. Word has length 46 [2021-06-05 05:24:22,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:24:22,060 INFO L482 AbstractCegarLoop]: Abstraction has 176292 states and 655124 transitions. [2021-06-05 05:24:22,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 176292 states and 655124 transitions. [2021-06-05 05:24:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:24:22,455 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:24:22,455 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:24:22,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 05:24:22,455 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:24:22,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:24:22,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1480378492, now seen corresponding path program 34 times [2021-06-05 05:24:22,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:24:22,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595731593] [2021-06-05 05:24:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:24:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:24:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:24:22,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:24:22,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595731593] [2021-06-05 05:24:22,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595731593] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:24:22,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:24:22,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:24:22,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401749263] [2021-06-05 05:24:22,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:24:22,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:24:22,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:24:22,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:24:22,510 INFO L87 Difference]: Start difference. First operand 176292 states and 655124 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:24,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:24:24,544 INFO L93 Difference]: Finished difference Result 256485 states and 935781 transitions. [2021-06-05 05:24:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 05:24:24,544 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:24:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:24:25,776 INFO L225 Difference]: With dead ends: 256485 [2021-06-05 05:24:25,776 INFO L226 Difference]: Without dead ends: 255477 [2021-06-05 05:24:25,776 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 60.2ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-06-05 05:24:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255477 states. [2021-06-05 05:24:30,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255477 to 174951. [2021-06-05 05:24:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174951 states, 174950 states have (on average 3.708448128036582) internal successors, (648793), 174950 states have internal predecessors, (648793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174951 states to 174951 states and 648793 transitions. [2021-06-05 05:24:32,168 INFO L78 Accepts]: Start accepts. Automaton has 174951 states and 648793 transitions. Word has length 46 [2021-06-05 05:24:32,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:24:32,168 INFO L482 AbstractCegarLoop]: Abstraction has 174951 states and 648793 transitions. [2021-06-05 05:24:32,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 174951 states and 648793 transitions. [2021-06-05 05:24:32,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:24:32,752 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:24:32,752 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:24:32,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 05:24:32,752 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:24:32,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:24:32,753 INFO L82 PathProgramCache]: Analyzing trace with hash 647892868, now seen corresponding path program 35 times [2021-06-05 05:24:32,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:24:32,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271461838] [2021-06-05 05:24:32,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:24:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:24:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:24:32,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:24:32,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271461838] [2021-06-05 05:24:32,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271461838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:24:32,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:24:32,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:24:32,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505611843] [2021-06-05 05:24:32,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:24:32,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:24:32,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:24:32,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:24:32,829 INFO L87 Difference]: Start difference. First operand 174951 states and 648793 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:35,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:24:35,205 INFO L93 Difference]: Finished difference Result 244216 states and 893757 transitions. [2021-06-05 05:24:35,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 05:24:35,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-05 05:24:35,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:24:36,711 INFO L225 Difference]: With dead ends: 244216 [2021-06-05 05:24:36,711 INFO L226 Difference]: Without dead ends: 241900 [2021-06-05 05:24:36,712 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 98.3ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-05 05:24:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241900 states. [2021-06-05 05:24:42,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241900 to 172803. [2021-06-05 05:24:42,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172803 states, 172802 states have (on average 3.7055358155576905) internal successors, (640324), 172802 states have internal predecessors, (640324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:42,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172803 states to 172803 states and 640324 transitions. [2021-06-05 05:24:42,897 INFO L78 Accepts]: Start accepts. Automaton has 172803 states and 640324 transitions. Word has length 46 [2021-06-05 05:24:42,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:24:42,898 INFO L482 AbstractCegarLoop]: Abstraction has 172803 states and 640324 transitions. [2021-06-05 05:24:42,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:42,898 INFO L276 IsEmpty]: Start isEmpty. Operand 172803 states and 640324 transitions. [2021-06-05 05:24:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:24:43,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:24:43,241 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:24:43,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 05:24:43,241 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:24:43,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:24:43,241 INFO L82 PathProgramCache]: Analyzing trace with hash -771547030, now seen corresponding path program 36 times [2021-06-05 05:24:43,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:24:43,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137817913] [2021-06-05 05:24:43,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:24:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:24:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:24:43,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:24:43,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137817913] [2021-06-05 05:24:43,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137817913] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:24:43,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:24:43,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:24:43,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899405904] [2021-06-05 05:24:43,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:24:43,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:24:43,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:24:43,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:24:43,308 INFO L87 Difference]: Start difference. First operand 172803 states and 640324 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:46,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:24:46,065 INFO L93 Difference]: Finished difference Result 246288 states and 898984 transitions. [2021-06-05 05:24:46,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:24:46,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-05 05:24:46,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:24:46,877 INFO L225 Difference]: With dead ends: 246288 [2021-06-05 05:24:46,877 INFO L226 Difference]: Without dead ends: 244180 [2021-06-05 05:24:46,877 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 112.2ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:24:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244180 states. [2021-06-05 05:24:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244180 to 178415. [2021-06-05 05:24:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178415 states, 178414 states have (on average 3.689693633907653) internal successors, (658293), 178414 states have internal predecessors, (658293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178415 states to 178415 states and 658293 transitions. [2021-06-05 05:24:53,329 INFO L78 Accepts]: Start accepts. Automaton has 178415 states and 658293 transitions. Word has length 46 [2021-06-05 05:24:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:24:53,329 INFO L482 AbstractCegarLoop]: Abstraction has 178415 states and 658293 transitions. [2021-06-05 05:24:53,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 178415 states and 658293 transitions. [2021-06-05 05:24:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:24:53,733 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:24:53,733 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:24:53,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 05:24:53,733 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:24:53,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:24:53,734 INFO L82 PathProgramCache]: Analyzing trace with hash -268062650, now seen corresponding path program 37 times [2021-06-05 05:24:53,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:24:53,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810102384] [2021-06-05 05:24:53,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:24:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:24:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:24:53,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:24:53,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810102384] [2021-06-05 05:24:53,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810102384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:24:53,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:24:53,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:24:53,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46186125] [2021-06-05 05:24:53,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:24:53,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:24:53,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:24:53,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:24:53,800 INFO L87 Difference]: Start difference. First operand 178415 states and 658293 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:24:56,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:24:56,039 INFO L93 Difference]: Finished difference Result 264778 states and 956726 transitions. [2021-06-05 05:24:56,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:24:56,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-05 05:24:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:24:56,721 INFO L225 Difference]: With dead ends: 264778 [2021-06-05 05:24:56,721 INFO L226 Difference]: Without dead ends: 255788 [2021-06-05 05:24:56,721 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 104.7ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:24:57,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255788 states. [2021-06-05 05:25:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255788 to 170344. [2021-06-05 05:25:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170344 states, 170343 states have (on average 3.651931690765103) internal successors, (622081), 170343 states have internal predecessors, (622081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170344 states to 170344 states and 622081 transitions. [2021-06-05 05:25:02,727 INFO L78 Accepts]: Start accepts. Automaton has 170344 states and 622081 transitions. Word has length 46 [2021-06-05 05:25:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:02,727 INFO L482 AbstractCegarLoop]: Abstraction has 170344 states and 622081 transitions. [2021-06-05 05:25:02,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:02,727 INFO L276 IsEmpty]: Start isEmpty. Operand 170344 states and 622081 transitions. [2021-06-05 05:25:03,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:03,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:03,081 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:03,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 05:25:03,081 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:03,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2109582830, now seen corresponding path program 38 times [2021-06-05 05:25:03,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:03,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070208828] [2021-06-05 05:25:03,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:03,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:03,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070208828] [2021-06-05 05:25:03,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070208828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:03,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:03,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:25:03,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696326645] [2021-06-05 05:25:03,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:25:03,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:03,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:25:03,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:25:03,145 INFO L87 Difference]: Start difference. First operand 170344 states and 622081 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:05,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:05,806 INFO L93 Difference]: Finished difference Result 259177 states and 926835 transitions. [2021-06-05 05:25:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:25:05,821 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:05,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:06,718 INFO L225 Difference]: With dead ends: 259177 [2021-06-05 05:25:06,718 INFO L226 Difference]: Without dead ends: 250948 [2021-06-05 05:25:06,718 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 113.0ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:25:07,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250948 states. [2021-06-05 05:25:11,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250948 to 163203. [2021-06-05 05:25:11,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163203 states, 163202 states have (on average 3.632841509295229) internal successors, (592887), 163202 states have internal predecessors, (592887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:12,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163203 states to 163203 states and 592887 transitions. [2021-06-05 05:25:12,926 INFO L78 Accepts]: Start accepts. Automaton has 163203 states and 592887 transitions. Word has length 46 [2021-06-05 05:25:12,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:12,926 INFO L482 AbstractCegarLoop]: Abstraction has 163203 states and 592887 transitions. [2021-06-05 05:25:12,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:12,926 INFO L276 IsEmpty]: Start isEmpty. Operand 163203 states and 592887 transitions. [2021-06-05 05:25:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:13,477 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:13,477 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:13,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 05:25:13,493 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:13,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:13,493 INFO L82 PathProgramCache]: Analyzing trace with hash 877862332, now seen corresponding path program 39 times [2021-06-05 05:25:13,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:13,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100756898] [2021-06-05 05:25:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:13,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:13,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100756898] [2021-06-05 05:25:13,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100756898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:13,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:13,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 05:25:13,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684127078] [2021-06-05 05:25:13,554 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 05:25:13,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:13,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 05:25:13,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-05 05:25:13,555 INFO L87 Difference]: Start difference. First operand 163203 states and 592887 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:15,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:15,798 INFO L93 Difference]: Finished difference Result 261836 states and 927885 transitions. [2021-06-05 05:25:15,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 05:25:15,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:16,860 INFO L225 Difference]: With dead ends: 261836 [2021-06-05 05:25:16,860 INFO L226 Difference]: Without dead ends: 258726 [2021-06-05 05:25:16,861 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 42.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:25:18,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258726 states. [2021-06-05 05:25:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258726 to 149085. [2021-06-05 05:25:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149085 states, 149084 states have (on average 3.572361889941241) internal successors, (532582), 149084 states have internal predecessors, (532582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:23,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149085 states to 149085 states and 532582 transitions. [2021-06-05 05:25:23,152 INFO L78 Accepts]: Start accepts. Automaton has 149085 states and 532582 transitions. Word has length 46 [2021-06-05 05:25:23,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:23,152 INFO L482 AbstractCegarLoop]: Abstraction has 149085 states and 532582 transitions. [2021-06-05 05:25:23,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 149085 states and 532582 transitions. [2021-06-05 05:25:23,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:23,563 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:23,563 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:23,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 05:25:23,563 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:23,563 INFO L82 PathProgramCache]: Analyzing trace with hash 371477210, now seen corresponding path program 40 times [2021-06-05 05:25:23,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:23,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292971986] [2021-06-05 05:25:23,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:23,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:23,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292971986] [2021-06-05 05:25:23,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292971986] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:23,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:23,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:25:23,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359120597] [2021-06-05 05:25:23,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:25:23,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:23,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:25:23,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:25:23,612 INFO L87 Difference]: Start difference. First operand 149085 states and 532582 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:25,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:25,503 INFO L93 Difference]: Finished difference Result 223326 states and 751109 transitions. [2021-06-05 05:25:25,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 05:25:25,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:25,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:26,053 INFO L225 Difference]: With dead ends: 223326 [2021-06-05 05:25:26,053 INFO L226 Difference]: Without dead ends: 212581 [2021-06-05 05:25:26,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 73.7ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-05 05:25:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212581 states. [2021-06-05 05:25:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212581 to 131099. [2021-06-05 05:25:29,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131099 states, 131098 states have (on average 3.4141787060061937) internal successors, (447592), 131098 states have internal predecessors, (447592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:30,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131099 states to 131099 states and 447592 transitions. [2021-06-05 05:25:30,268 INFO L78 Accepts]: Start accepts. Automaton has 131099 states and 447592 transitions. Word has length 46 [2021-06-05 05:25:30,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:30,268 INFO L482 AbstractCegarLoop]: Abstraction has 131099 states and 447592 transitions. [2021-06-05 05:25:30,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:30,268 INFO L276 IsEmpty]: Start isEmpty. Operand 131099 states and 447592 transitions. [2021-06-05 05:25:30,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:30,635 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:30,635 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:30,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 05:25:30,635 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:30,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:30,635 INFO L82 PathProgramCache]: Analyzing trace with hash 132428666, now seen corresponding path program 41 times [2021-06-05 05:25:30,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:30,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887071362] [2021-06-05 05:25:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:30,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:30,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887071362] [2021-06-05 05:25:30,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887071362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:30,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:30,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:25:30,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366493298] [2021-06-05 05:25:30,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:25:30,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:30,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:25:30,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:25:30,693 INFO L87 Difference]: Start difference. First operand 131099 states and 447592 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:32,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:32,370 INFO L93 Difference]: Finished difference Result 188860 states and 626123 transitions. [2021-06-05 05:25:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 05:25:32,385 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:32,885 INFO L225 Difference]: With dead ends: 188860 [2021-06-05 05:25:32,885 INFO L226 Difference]: Without dead ends: 183900 [2021-06-05 05:25:32,886 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 76.3ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-05 05:25:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183900 states. [2021-06-05 05:25:35,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183900 to 124043. [2021-06-05 05:25:36,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124043 states, 124042 states have (on average 3.3897067122426274) internal successors, (420466), 124042 states have internal predecessors, (420466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124043 states to 124043 states and 420466 transitions. [2021-06-05 05:25:36,333 INFO L78 Accepts]: Start accepts. Automaton has 124043 states and 420466 transitions. Word has length 46 [2021-06-05 05:25:36,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:36,333 INFO L482 AbstractCegarLoop]: Abstraction has 124043 states and 420466 transitions. [2021-06-05 05:25:36,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 124043 states and 420466 transitions. [2021-06-05 05:25:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:36,554 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:36,554 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:36,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 05:25:36,554 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:36,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:36,554 INFO L82 PathProgramCache]: Analyzing trace with hash -750228296, now seen corresponding path program 42 times [2021-06-05 05:25:36,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:36,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039264072] [2021-06-05 05:25:36,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:36,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:36,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:36,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039264072] [2021-06-05 05:25:36,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039264072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:36,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:36,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:25:36,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106870288] [2021-06-05 05:25:36,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:25:36,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:36,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:25:36,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:25:36,615 INFO L87 Difference]: Start difference. First operand 124043 states and 420466 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:38,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:38,308 INFO L93 Difference]: Finished difference Result 175203 states and 571916 transitions. [2021-06-05 05:25:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:25:38,308 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:38,673 INFO L225 Difference]: With dead ends: 175203 [2021-06-05 05:25:38,673 INFO L226 Difference]: Without dead ends: 170645 [2021-06-05 05:25:38,673 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 104.0ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:25:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170645 states. [2021-06-05 05:25:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170645 to 119703. [2021-06-05 05:25:41,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119703 states, 119702 states have (on average 3.384379542530618) internal successors, (405117), 119702 states have internal predecessors, (405117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119703 states to 119703 states and 405117 transitions. [2021-06-05 05:25:42,679 INFO L78 Accepts]: Start accepts. Automaton has 119703 states and 405117 transitions. Word has length 46 [2021-06-05 05:25:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:42,679 INFO L482 AbstractCegarLoop]: Abstraction has 119703 states and 405117 transitions. [2021-06-05 05:25:42,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:42,680 INFO L276 IsEmpty]: Start isEmpty. Operand 119703 states and 405117 transitions. [2021-06-05 05:25:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:42,920 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:42,920 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:42,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 05:25:42,920 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:42,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:42,920 INFO L82 PathProgramCache]: Analyzing trace with hash -860211164, now seen corresponding path program 43 times [2021-06-05 05:25:42,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:42,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807980750] [2021-06-05 05:25:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:42,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:42,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807980750] [2021-06-05 05:25:42,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807980750] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:42,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:42,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 05:25:42,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910018280] [2021-06-05 05:25:42,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 05:25:42,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:42,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 05:25:42,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-06-05 05:25:42,967 INFO L87 Difference]: Start difference. First operand 119703 states and 405117 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:44,728 INFO L93 Difference]: Finished difference Result 209332 states and 694424 transitions. [2021-06-05 05:25:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 05:25:44,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:44,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:45,266 INFO L225 Difference]: With dead ends: 209332 [2021-06-05 05:25:45,266 INFO L226 Difference]: Without dead ends: 209012 [2021-06-05 05:25:45,266 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 56.3ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-06-05 05:25:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209012 states. [2021-06-05 05:25:48,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209012 to 119543. [2021-06-05 05:25:48,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119543 states, 119542 states have (on average 3.380477154472905) internal successors, (404109), 119542 states have internal predecessors, (404109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119543 states to 119543 states and 404109 transitions. [2021-06-05 05:25:48,746 INFO L78 Accepts]: Start accepts. Automaton has 119543 states and 404109 transitions. Word has length 46 [2021-06-05 05:25:48,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:48,746 INFO L482 AbstractCegarLoop]: Abstraction has 119543 states and 404109 transitions. [2021-06-05 05:25:48,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 119543 states and 404109 transitions. [2021-06-05 05:25:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:48,967 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:48,968 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:48,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 05:25:48,968 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:48,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1070564388, now seen corresponding path program 44 times [2021-06-05 05:25:48,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:48,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755667516] [2021-06-05 05:25:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:49,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:49,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755667516] [2021-06-05 05:25:49,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755667516] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:49,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:49,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:25:49,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670367319] [2021-06-05 05:25:49,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:25:49,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:49,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:25:49,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:25:49,025 INFO L87 Difference]: Start difference. First operand 119543 states and 404109 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:50,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:50,786 INFO L93 Difference]: Finished difference Result 210764 states and 697768 transitions. [2021-06-05 05:25:50,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 05:25:50,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:52,073 INFO L225 Difference]: With dead ends: 210764 [2021-06-05 05:25:52,073 INFO L226 Difference]: Without dead ends: 208556 [2021-06-05 05:25:52,073 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 82.0ms TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-06-05 05:25:52,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208556 states. [2021-06-05 05:25:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208556 to 118519. [2021-06-05 05:25:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118519 states, 118518 states have (on average 3.368239423547478) internal successors, (399197), 118518 states have internal predecessors, (399197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:56,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118519 states to 118519 states and 399197 transitions. [2021-06-05 05:25:56,401 INFO L78 Accepts]: Start accepts. Automaton has 118519 states and 399197 transitions. Word has length 46 [2021-06-05 05:25:56,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:25:56,401 INFO L482 AbstractCegarLoop]: Abstraction has 118519 states and 399197 transitions. [2021-06-05 05:25:56,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:56,401 INFO L276 IsEmpty]: Start isEmpty. Operand 118519 states and 399197 transitions. [2021-06-05 05:25:56,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:25:56,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:25:56,594 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:25:56,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 05:25:56,594 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:25:56,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:25:56,594 INFO L82 PathProgramCache]: Analyzing trace with hash 2024723492, now seen corresponding path program 45 times [2021-06-05 05:25:56,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:25:56,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929419834] [2021-06-05 05:25:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:25:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:25:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:25:56,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:25:56,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929419834] [2021-06-05 05:25:56,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929419834] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:25:56,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:25:56,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:25:56,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176748738] [2021-06-05 05:25:56,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:25:56,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:25:56,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:25:56,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:25:56,653 INFO L87 Difference]: Start difference. First operand 118519 states and 399197 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:25:58,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:25:58,340 INFO L93 Difference]: Finished difference Result 204952 states and 677928 transitions. [2021-06-05 05:25:58,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 05:25:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-05 05:25:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:25:58,820 INFO L225 Difference]: With dead ends: 204952 [2021-06-05 05:25:58,820 INFO L226 Difference]: Without dead ends: 199448 [2021-06-05 05:25:58,820 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 110.1ms TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2021-06-05 05:25:59,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199448 states. [2021-06-05 05:26:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199448 to 116359. [2021-06-05 05:26:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116359 states, 116358 states have (on average 3.3593994396603586) internal successors, (390893), 116358 states have internal predecessors, (390893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:26:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116359 states to 116359 states and 390893 transitions. [2021-06-05 05:26:02,211 INFO L78 Accepts]: Start accepts. Automaton has 116359 states and 390893 transitions. Word has length 46 [2021-06-05 05:26:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:26:02,211 INFO L482 AbstractCegarLoop]: Abstraction has 116359 states and 390893 transitions. [2021-06-05 05:26:02,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:26:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 116359 states and 390893 transitions. [2021-06-05 05:26:02,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 05:26:02,976 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:26:02,976 INFO L521 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:26:02,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 05:26:02,993 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 05:26:02,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:26:02,993 INFO L82 PathProgramCache]: Analyzing trace with hash -686007030, now seen corresponding path program 46 times [2021-06-05 05:26:02,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:26:02,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932542563] [2021-06-05 05:26:02,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:26:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:26:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:26:03,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:26:03,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932542563] [2021-06-05 05:26:03,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932542563] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:26:03,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:26:03,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:26:03,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102751987] [2021-06-05 05:26:03,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:26:03,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:26:03,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:26:03,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:26:03,107 INFO L87 Difference]: Start difference. First operand 116359 states and 390893 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:26:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:26:05,070 INFO L93 Difference]: Finished difference Result 199224 states and 659408 transitions. [2021-06-05 05:26:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:26:05,070 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-05 05:26:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:26:05,558 INFO L225 Difference]: With dead ends: 199224 [2021-06-05 05:26:05,558 INFO L226 Difference]: Without dead ends: 191416 [2021-06-05 05:26:05,558 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 163.1ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 Received shutdown request... [2021-06-05 05:26:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191416 states. [2021-06-05 05:26:05,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 05:26:05,968 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 05:26:05,969 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 05:26:05,971 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 05:26:05,971 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 05:26:05 BasicIcfg [2021-06-05 05:26:05,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 05:26:05,972 INFO L168 Benchmark]: Toolchain (without parser) took 561952.46 ms. Allocated memory was 356.5 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 335.8 MB in the beginning and 12.5 GB in the end (delta: -12.1 GB). Peak memory consumption was 3.9 GB. Max. memory is 16.0 GB. [2021-06-05 05:26:05,973 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 356.5 MB. Free memory was 337.0 MB in the beginning and 336.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 05:26:05,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.84 ms. Allocated memory is still 356.5 MB. Free memory was 335.7 MB in the beginning and 334.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 05:26:05,973 INFO L168 Benchmark]: Boogie Preprocessor took 13.85 ms. Allocated memory is still 356.5 MB. Free memory was 334.2 MB in the beginning and 333.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 05:26:05,973 INFO L168 Benchmark]: RCFGBuilder took 313.46 ms. Allocated memory is still 356.5 MB. Free memory was 333.1 MB in the beginning and 316.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-05 05:26:05,973 INFO L168 Benchmark]: TraceAbstraction took 561590.02 ms. Allocated memory was 356.5 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 316.3 MB in the beginning and 12.5 GB in the end (delta: -12.1 GB). Peak memory consumption was 3.8 GB. Max. memory is 16.0 GB. [2021-06-05 05:26:05,973 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 0.15 ms. Allocated memory is still 356.5 MB. Free memory was 337.0 MB in the beginning and 336.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.84 ms. Allocated memory is still 356.5 MB. Free memory was 335.7 MB in the beginning and 334.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.85 ms. Allocated memory is still 356.5 MB. Free memory was 334.2 MB in the beginning and 333.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 313.46 ms. Allocated memory is still 356.5 MB. Free memory was 333.1 MB in the beginning and 316.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 561590.02 ms. Allocated memory was 356.5 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 316.3 MB in the beginning and 12.5 GB in the end (delta: -12.1 GB). Peak memory consumption was 3.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 98 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 561419.2ms, OverallIterations: 46, TraceHistogramMax: 1, EmptinessCheckTime: 30750.3ms, AutomataDifference: 176271.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15843.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5213 SDtfs, 8299 SDslu, 18521 SDs, 0 SdLazy, 19278 SolverSat, 3305 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10964.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 688 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 514 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 2794.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=224674occurred in iteration=10, InterpolantAutomatonStates: 511, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 334601.2ms AutomataMinimizationTime, 46 MinimizatonAttempts, 4125361 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 73.2ms SsaConstructionTime, 374.2ms SatisfiabilityAnalysisTime, 2604.5ms InterpolantComputationTime, 2116 NumberOfCodeBlocks, 2116 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 2070 ConstructedInterpolants, 0 QuantifiedInterpolants, 6336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 46 InterpolantComputations, 46 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown