/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/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 03:42:04,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:42:04,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:42:05,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 03:42:05,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 03:42:05,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 03:42:05,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 03:42:05,042 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 03:42:05,060 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:42:05,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:42:05,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:42:05,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:42:05,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:42:05,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:42:05,062 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:42:05,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:42:05,063 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:42:05,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:42:05,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:42:05,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:42:05,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:42:05,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:42:05,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:42:05,064 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:42:05,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:42:05,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:42:05,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:42:05,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:42:05,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:42:05,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:42:05,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:42:05,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:42:05,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:42:05,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:42:05,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:42:05,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:42:05,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:42:05,065 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:42:05,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:42:05,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:42:05,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:42:05,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:42:05,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:42:05,373 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 03:42:05,375 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 03:42:05,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2021-06-05 03:42:05,376 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2021-06-05 03:42:05,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:42:05,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 03:42:05,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:42:05,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:42:05,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:42:05,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:42:05,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:42:05,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:42:05,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:42:05,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/1) ... [2021-06-05 03:42:05,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:42:05,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:42:05,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:42:05,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:42:05,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (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 03:42:05,539 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-05 03:42:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-05 03:42:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-05 03:42:05,539 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-05 03:42:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-05 03:42:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-05 03:42:05,540 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-05 03:42:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-05 03:42:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-05 03:42:05,540 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-05 03:42:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-05 03:42:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-05 03:42:05,540 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-05 03:42:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-05 03:42:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-05 03:42:05,541 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 03:42:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:42:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:42:05,541 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-05 03:42:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-05 03:42:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-05 03:42:05,541 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-05 03:42:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-05 03:42:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-05 03:42:05,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-05 03:42:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-05 03:42:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-05 03:42:05,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-06-05 03:42:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-06-05 03:42:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-06-05 03:42:05,543 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 03:42:05,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:42:05,668 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 03:42:05,669 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:42:05 BoogieIcfgContainer [2021-06-05 03:42:05,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:42:05,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:42:05,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:42:05,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:42:05,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:42:05" (1/2) ... [2021-06-05 03:42:05,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f84743 and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:42:05, skipping insertion in model container [2021-06-05 03:42:05,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:42:05" (2/2) ... [2021-06-05 03:42:05,675 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2021-06-05 03:42:05,680 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:42:05,680 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:42:05,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 03:42:05,681 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:42:05,804 INFO L149 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2021-06-05 03:42:05,822 INFO L255 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-06-05 03:42:05,837 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:42:05,838 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:42:05,838 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:42:05,838 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:42:05,838 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:42:05,838 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:42:05,838 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:42:05,838 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:42:05,849 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 120 transitions, 528 flow [2021-06-05 03:45:01,497 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 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 03:45:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 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 03:45:04,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:45:04,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:04,359 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] [2021-06-05 03:45:04,359 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:04,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:04,364 INFO L82 PathProgramCache]: Analyzing trace with hash -579927567, now seen corresponding path program 1 times [2021-06-05 03:45:04,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:04,370 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223629357] [2021-06-05 03:45:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:04,504 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 03:45:04,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:04,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223629357] [2021-06-05 03:45:04,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223629357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:04,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:04,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:45:04,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570473512] [2021-06-05 03:45:04,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:45:04,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:04,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:45:04,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:45:05,077 INFO L87 Difference]: Start difference. First operand has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:45:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:09,070 INFO L93 Difference]: Finished difference Result 247931 states and 1629507 transitions. [2021-06-05 03:45:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:45:09,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:45:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:12,496 INFO L225 Difference]: With dead ends: 247931 [2021-06-05 03:45:12,497 INFO L226 Difference]: Without dead ends: 247929 [2021-06-05 03:45:12,499 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:45:29,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247929 states. [2021-06-05 03:45:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247929 to 247929. [2021-06-05 03:45:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247929 states, 247928 states have (on average 6.572492820496273) internal successors, (1629505), 247928 states have internal predecessors, (1629505), 0 states have call successors, (0), 0 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 03:45:41,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247929 states to 247929 states and 1629505 transitions. [2021-06-05 03:45:41,856 INFO L78 Accepts]: Start accepts. Automaton has 247929 states and 1629505 transitions. Word has length 37 [2021-06-05 03:45:41,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:41,857 INFO L482 AbstractCegarLoop]: Abstraction has 247929 states and 1629505 transitions. [2021-06-05 03:45:41,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:45:41,858 INFO L276 IsEmpty]: Start isEmpty. Operand 247929 states and 1629505 transitions. [2021-06-05 03:45:42,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:45:42,981 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:42,981 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] [2021-06-05 03:45:42,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:45:42,982 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:42,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:42,982 INFO L82 PathProgramCache]: Analyzing trace with hash 65929237, now seen corresponding path program 1 times [2021-06-05 03:45:42,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:42,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669013424] [2021-06-05 03:45:42,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:43,012 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 03:45:43,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:43,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669013424] [2021-06-05 03:45:43,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669013424] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:43,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:43,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:45:43,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364754506] [2021-06-05 03:45:43,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:45:43,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:43,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:45:43,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:45:43,016 INFO L87 Difference]: Start difference. First operand 247929 states and 1629505 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:45:45,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:45,909 INFO L93 Difference]: Finished difference Result 205647 states and 1312390 transitions. [2021-06-05 03:45:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:45:45,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:45:45,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:47,868 INFO L225 Difference]: With dead ends: 205647 [2021-06-05 03:45:47,869 INFO L226 Difference]: Without dead ends: 205647 [2021-06-05 03:45:47,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:46:01,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205647 states. [2021-06-05 03:46:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205647 to 205647. [2021-06-05 03:46:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205647 states, 205646 states have (on average 6.381792011514934) internal successors, (1312390), 205646 states have internal predecessors, (1312390), 0 states have call successors, (0), 0 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 03:46:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205647 states to 205647 states and 1312390 transitions. [2021-06-05 03:46:09,387 INFO L78 Accepts]: Start accepts. Automaton has 205647 states and 1312390 transitions. Word has length 37 [2021-06-05 03:46:09,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:09,388 INFO L482 AbstractCegarLoop]: Abstraction has 205647 states and 1312390 transitions. [2021-06-05 03:46:09,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:46:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 205647 states and 1312390 transitions. [2021-06-05 03:46:11,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:46:11,618 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:11,618 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] [2021-06-05 03:46:11,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:46:11,619 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:11,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:11,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1044527641, now seen corresponding path program 1 times [2021-06-05 03:46:11,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:11,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762584636] [2021-06-05 03:46:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:11,718 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 03:46:11,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:11,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762584636] [2021-06-05 03:46:11,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762584636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:11,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:11,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:46:11,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317138664] [2021-06-05 03:46:11,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:46:11,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:11,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:46:11,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:46:11,720 INFO L87 Difference]: Start difference. First operand 205647 states and 1312390 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:46:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:14,411 INFO L93 Difference]: Finished difference Result 199086 states and 1257715 transitions. [2021-06-05 03:46:14,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:46:14,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:46:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:17,162 INFO L225 Difference]: With dead ends: 199086 [2021-06-05 03:46:17,171 INFO L226 Difference]: Without dead ends: 199086 [2021-06-05 03:46:17,171 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:46:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199086 states. [2021-06-05 03:46:37,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199086 to 199086. [2021-06-05 03:46:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199086 states, 199085 states have (on average 6.317477459376648) internal successors, (1257715), 199085 states have internal predecessors, (1257715), 0 states have call successors, (0), 0 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 03:46:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199086 states to 199086 states and 1257715 transitions. [2021-06-05 03:46:40,012 INFO L78 Accepts]: Start accepts. Automaton has 199086 states and 1257715 transitions. Word has length 37 [2021-06-05 03:46:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:40,012 INFO L482 AbstractCegarLoop]: Abstraction has 199086 states and 1257715 transitions. [2021-06-05 03:46:40,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:46:40,013 INFO L276 IsEmpty]: Start isEmpty. Operand 199086 states and 1257715 transitions. [2021-06-05 03:46:40,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:46:40,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:40,720 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] [2021-06-05 03:46:40,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 03:46:40,720 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:40,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:40,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1663480717, now seen corresponding path program 1 times [2021-06-05 03:46:40,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:40,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550835410] [2021-06-05 03:46:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:40,743 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 03:46:40,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:40,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550835410] [2021-06-05 03:46:40,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550835410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:40,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:40,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:46:40,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764865566] [2021-06-05 03:46:40,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:46:40,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:40,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:46:40,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:46:40,746 INFO L87 Difference]: Start difference. First operand 199086 states and 1257715 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:46:42,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:42,799 INFO L93 Difference]: Finished difference Result 144816 states and 896941 transitions. [2021-06-05 03:46:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:46:42,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:46:42,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:44,014 INFO L225 Difference]: With dead ends: 144816 [2021-06-05 03:46:44,014 INFO L226 Difference]: Without dead ends: 144816 [2021-06-05 03:46:44,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:46:55,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144816 states. [2021-06-05 03:46:58,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144816 to 144816. [2021-06-05 03:46:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144816 states, 144815 states have (on average 6.1937023098435935) internal successors, (896941), 144815 states have internal predecessors, (896941), 0 states have call successors, (0), 0 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 03:47:00,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144816 states to 144816 states and 896941 transitions. [2021-06-05 03:47:00,254 INFO L78 Accepts]: Start accepts. Automaton has 144816 states and 896941 transitions. Word has length 37 [2021-06-05 03:47:00,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:00,255 INFO L482 AbstractCegarLoop]: Abstraction has 144816 states and 896941 transitions. [2021-06-05 03:47:00,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 144816 states and 896941 transitions. [2021-06-05 03:47:01,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:47:01,542 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:01,543 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] [2021-06-05 03:47:01,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 03:47:01,543 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:01,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1563653977, now seen corresponding path program 1 times [2021-06-05 03:47:01,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:01,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236576478] [2021-06-05 03:47:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:01,578 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 03:47:01,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:01,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236576478] [2021-06-05 03:47:01,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236576478] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:01,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:01,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:47:01,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537206268] [2021-06-05 03:47:01,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:47:01,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:01,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:47:01,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:47:01,581 INFO L87 Difference]: Start difference. First operand 144816 states and 896941 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:02,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:02,932 INFO L93 Difference]: Finished difference Result 107880 states and 652645 transitions. [2021-06-05 03:47:02,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:47:02,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:47:02,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:03,543 INFO L225 Difference]: With dead ends: 107880 [2021-06-05 03:47:03,543 INFO L226 Difference]: Without dead ends: 107880 [2021-06-05 03:47:03,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:47:11,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107880 states. [2021-06-05 03:47:14,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107880 to 107880. [2021-06-05 03:47:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107880 states, 107879 states have (on average 6.049787261654261) internal successors, (652645), 107879 states have internal predecessors, (652645), 0 states have call successors, (0), 0 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 03:47:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107880 states to 107880 states and 652645 transitions. [2021-06-05 03:47:14,892 INFO L78 Accepts]: Start accepts. Automaton has 107880 states and 652645 transitions. Word has length 37 [2021-06-05 03:47:14,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:14,893 INFO L482 AbstractCegarLoop]: Abstraction has 107880 states and 652645 transitions. [2021-06-05 03:47:14,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:14,893 INFO L276 IsEmpty]: Start isEmpty. Operand 107880 states and 652645 transitions. [2021-06-05 03:47:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:47:15,186 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:15,186 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] [2021-06-05 03:47:15,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 03:47:15,186 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:15,187 INFO L82 PathProgramCache]: Analyzing trace with hash 673733085, now seen corresponding path program 1 times [2021-06-05 03:47:15,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:15,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747662039] [2021-06-05 03:47:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:15,219 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 03:47:15,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:15,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747662039] [2021-06-05 03:47:15,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747662039] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:15,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:15,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:47:15,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317544881] [2021-06-05 03:47:15,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:47:15,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:15,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:47:15,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:47:15,222 INFO L87 Difference]: Start difference. First operand 107880 states and 652645 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:16,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:16,367 INFO L93 Difference]: Finished difference Result 76074 states and 457273 transitions. [2021-06-05 03:47:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:47:16,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:47:16,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:16,664 INFO L225 Difference]: With dead ends: 76074 [2021-06-05 03:47:16,664 INFO L226 Difference]: Without dead ends: 76074 [2021-06-05 03:47:16,665 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:47:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76074 states. [2021-06-05 03:47:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76074 to 76074. [2021-06-05 03:47:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76074 states, 76073 states have (on average 6.010976299081146) internal successors, (457273), 76073 states have internal predecessors, (457273), 0 states have call successors, (0), 0 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 03:47:25,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76074 states to 76074 states and 457273 transitions. [2021-06-05 03:47:25,181 INFO L78 Accepts]: Start accepts. Automaton has 76074 states and 457273 transitions. Word has length 37 [2021-06-05 03:47:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:25,181 INFO L482 AbstractCegarLoop]: Abstraction has 76074 states and 457273 transitions. [2021-06-05 03:47:25,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:25,181 INFO L276 IsEmpty]: Start isEmpty. Operand 76074 states and 457273 transitions. [2021-06-05 03:47:25,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:47:25,357 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:25,357 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] [2021-06-05 03:47:25,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 03:47:25,358 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:25,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:25,358 INFO L82 PathProgramCache]: Analyzing trace with hash -295306595, now seen corresponding path program 1 times [2021-06-05 03:47:25,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:25,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828027729] [2021-06-05 03:47:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:25,386 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 03:47:25,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:25,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828027729] [2021-06-05 03:47:25,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828027729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:25,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:25,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:47:25,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799613514] [2021-06-05 03:47:25,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:47:25,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:25,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:47:25,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:47:25,388 INFO L87 Difference]: Start difference. First operand 76074 states and 457273 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:26,404 INFO L93 Difference]: Finished difference Result 54114 states and 324757 transitions. [2021-06-05 03:47:26,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:47:26,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:47:26,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:26,617 INFO L225 Difference]: With dead ends: 54114 [2021-06-05 03:47:26,617 INFO L226 Difference]: Without dead ends: 54114 [2021-06-05 03:47:26,617 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:47:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54114 states. [2021-06-05 03:47:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54114 to 54114. [2021-06-05 03:47:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54114 states, 54113 states have (on average 6.001459907970358) internal successors, (324757), 54113 states have internal predecessors, (324757), 0 states have call successors, (0), 0 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 03:47:33,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54114 states to 54114 states and 324757 transitions. [2021-06-05 03:47:33,694 INFO L78 Accepts]: Start accepts. Automaton has 54114 states and 324757 transitions. Word has length 37 [2021-06-05 03:47:33,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:33,694 INFO L482 AbstractCegarLoop]: Abstraction has 54114 states and 324757 transitions. [2021-06-05 03:47:33,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:33,695 INFO L276 IsEmpty]: Start isEmpty. Operand 54114 states and 324757 transitions. [2021-06-05 03:47:33,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:47:33,829 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:33,829 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] [2021-06-05 03:47:33,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 03:47:33,829 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:33,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:33,830 INFO L82 PathProgramCache]: Analyzing trace with hash 857199773, now seen corresponding path program 1 times [2021-06-05 03:47:33,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:33,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155793710] [2021-06-05 03:47:33,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:34,365 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 03:47:34,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:34,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155793710] [2021-06-05 03:47:34,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155793710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:34,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:34,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:47:34,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158772232] [2021-06-05 03:47:34,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:47:34,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:34,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:47:34,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:34,367 INFO L87 Difference]: Start difference. First operand 54114 states and 324757 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:36,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:36,027 INFO L93 Difference]: Finished difference Result 141637 states and 796695 transitions. [2021-06-05 03:47:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:47:36,027 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:47:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:37,670 INFO L225 Difference]: With dead ends: 141637 [2021-06-05 03:47:37,671 INFO L226 Difference]: Without dead ends: 138843 [2021-06-05 03:47:37,671 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 332.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:47:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138843 states. [2021-06-05 03:47:48,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138843 to 55328. [2021-06-05 03:47:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55328 states, 55327 states have (on average 5.981690675438755) internal successors, (330949), 55327 states have internal predecessors, (330949), 0 states have call successors, (0), 0 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 03:47:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55328 states to 55328 states and 330949 transitions. [2021-06-05 03:47:48,656 INFO L78 Accepts]: Start accepts. Automaton has 55328 states and 330949 transitions. Word has length 37 [2021-06-05 03:47:48,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:48,656 INFO L482 AbstractCegarLoop]: Abstraction has 55328 states and 330949 transitions. [2021-06-05 03:47:48,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 55328 states and 330949 transitions. [2021-06-05 03:47:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:47:49,347 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:49,347 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] [2021-06-05 03:47:49,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 03:47:49,348 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:49,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash -732734977, now seen corresponding path program 2 times [2021-06-05 03:47:49,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:49,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492553384] [2021-06-05 03:47:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:49,897 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 03:47:49,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:49,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492553384] [2021-06-05 03:47:49,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492553384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:49,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:49,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:47:49,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268890590] [2021-06-05 03:47:49,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:47:49,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:49,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:47:49,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:49,899 INFO L87 Difference]: Start difference. First operand 55328 states and 330949 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:47:51,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:51,763 INFO L93 Difference]: Finished difference Result 141875 states and 797558 transitions. [2021-06-05 03:47:51,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:47:51,764 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:47:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:52,359 INFO L225 Difference]: With dead ends: 141875 [2021-06-05 03:47:52,359 INFO L226 Difference]: Without dead ends: 138332 [2021-06-05 03:47:52,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 355.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:47:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138332 states. [2021-06-05 03:48:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138332 to 54817. [2021-06-05 03:48:01,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54817 states, 54816 states have (on average 5.990787361354349) internal successors, (328391), 54816 states have internal predecessors, (328391), 0 states have call successors, (0), 0 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 03:48:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54817 states to 54817 states and 328391 transitions. [2021-06-05 03:48:01,738 INFO L78 Accepts]: Start accepts. Automaton has 54817 states and 328391 transitions. Word has length 37 [2021-06-05 03:48:01,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:01,738 INFO L482 AbstractCegarLoop]: Abstraction has 54817 states and 328391 transitions. [2021-06-05 03:48:01,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 54817 states and 328391 transitions. [2021-06-05 03:48:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:48:01,867 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:01,868 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] [2021-06-05 03:48:01,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 03:48:01,868 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:01,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:01,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1938262399, now seen corresponding path program 3 times [2021-06-05 03:48:01,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:01,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597261540] [2021-06-05 03:48:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:02,174 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 03:48:02,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:02,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597261540] [2021-06-05 03:48:02,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597261540] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:02,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:02,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:48:02,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240758730] [2021-06-05 03:48:02,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:48:02,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:02,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:48:02,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:02,176 INFO L87 Difference]: Start difference. First operand 54817 states and 328391 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:03,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:03,668 INFO L93 Difference]: Finished difference Result 141494 states and 795819 transitions. [2021-06-05 03:48:03,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:48:03,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:48:03,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:04,823 INFO L225 Difference]: With dead ends: 141494 [2021-06-05 03:48:04,824 INFO L226 Difference]: Without dead ends: 138700 [2021-06-05 03:48:04,825 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:48:11,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138700 states. [2021-06-05 03:48:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138700 to 55199. [2021-06-05 03:48:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55199 states, 55198 states have (on average 5.980579006485742) internal successors, (330116), 55198 states have internal predecessors, (330116), 0 states have call successors, (0), 0 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 03:48:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55199 states to 55199 states and 330116 transitions. [2021-06-05 03:48:13,634 INFO L78 Accepts]: Start accepts. Automaton has 55199 states and 330116 transitions. Word has length 37 [2021-06-05 03:48:13,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:13,634 INFO L482 AbstractCegarLoop]: Abstraction has 55199 states and 330116 transitions. [2021-06-05 03:48:13,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:13,634 INFO L276 IsEmpty]: Start isEmpty. Operand 55199 states and 330116 transitions. [2021-06-05 03:48:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:48:14,356 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:14,356 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] [2021-06-05 03:48:14,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 03:48:14,356 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:14,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1348406913, now seen corresponding path program 4 times [2021-06-05 03:48:14,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:14,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499955156] [2021-06-05 03:48:14,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:14,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:14,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499955156] [2021-06-05 03:48:14,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499955156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:14,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:14,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:48:14,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856293169] [2021-06-05 03:48:14,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:48:14,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:14,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:48:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:14,740 INFO L87 Difference]: Start difference. First operand 55199 states and 330116 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:16,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:16,445 INFO L93 Difference]: Finished difference Result 141718 states and 796641 transitions. [2021-06-05 03:48:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:48:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:48:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:17,041 INFO L225 Difference]: With dead ends: 141718 [2021-06-05 03:48:17,042 INFO L226 Difference]: Without dead ends: 138318 [2021-06-05 03:48:17,042 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:48:24,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138318 states. [2021-06-05 03:48:26,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138318 to 54817. [2021-06-05 03:48:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54817 states, 54816 states have (on average 5.9873029772329245) internal successors, (328200), 54816 states have internal predecessors, (328200), 0 states have call successors, (0), 0 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 03:48:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54817 states to 54817 states and 328200 transitions. [2021-06-05 03:48:26,476 INFO L78 Accepts]: Start accepts. Automaton has 54817 states and 328200 transitions. Word has length 37 [2021-06-05 03:48:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:26,477 INFO L482 AbstractCegarLoop]: Abstraction has 54817 states and 328200 transitions. [2021-06-05 03:48:26,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:26,477 INFO L276 IsEmpty]: Start isEmpty. Operand 54817 states and 328200 transitions. [2021-06-05 03:48:26,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:48:26,603 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:26,603 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] [2021-06-05 03:48:26,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 03:48:26,603 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:26,604 INFO L82 PathProgramCache]: Analyzing trace with hash -939542943, now seen corresponding path program 5 times [2021-06-05 03:48:26,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:26,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474851483] [2021-06-05 03:48:26,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:26,875 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 03:48:26,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:26,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474851483] [2021-06-05 03:48:26,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474851483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:26,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:26,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:48:26,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728614339] [2021-06-05 03:48:26,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:48:26,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:26,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:48:26,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:26,877 INFO L87 Difference]: Start difference. First operand 54817 states and 328200 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:28,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:28,426 INFO L93 Difference]: Finished difference Result 142083 states and 798781 transitions. [2021-06-05 03:48:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:48:28,426 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:48:28,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:29,540 INFO L225 Difference]: With dead ends: 142083 [2021-06-05 03:48:29,540 INFO L226 Difference]: Without dead ends: 139051 [2021-06-05 03:48:29,541 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 307.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:48:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139051 states. [2021-06-05 03:48:38,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139051 to 55312. [2021-06-05 03:48:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55312 states, 55311 states have (on average 5.974815136229683) internal successors, (330473), 55311 states have internal predecessors, (330473), 0 states have call successors, (0), 0 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 03:48:39,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55312 states to 55312 states and 330473 transitions. [2021-06-05 03:48:39,100 INFO L78 Accepts]: Start accepts. Automaton has 55312 states and 330473 transitions. Word has length 37 [2021-06-05 03:48:39,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:39,100 INFO L482 AbstractCegarLoop]: Abstraction has 55312 states and 330473 transitions. [2021-06-05 03:48:39,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:39,101 INFO L276 IsEmpty]: Start isEmpty. Operand 55312 states and 330473 transitions. [2021-06-05 03:48:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:48:39,327 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:39,327 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] [2021-06-05 03:48:39,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 03:48:39,327 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1312087359, now seen corresponding path program 6 times [2021-06-05 03:48:39,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:39,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671483261] [2021-06-05 03:48:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:39,611 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 03:48:39,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:39,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671483261] [2021-06-05 03:48:39,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671483261] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:39,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:39,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:48:39,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141045430] [2021-06-05 03:48:39,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:48:39,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:39,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:48:39,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:39,614 INFO L87 Difference]: Start difference. First operand 55312 states and 330473 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:41,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:41,253 INFO L93 Difference]: Finished difference Result 142069 states and 798244 transitions. [2021-06-05 03:48:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:48:41,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:48:41,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:41,826 INFO L225 Difference]: With dead ends: 142069 [2021-06-05 03:48:41,826 INFO L226 Difference]: Without dead ends: 138237 [2021-06-05 03:48:41,826 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 285.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:48:48,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138237 states. [2021-06-05 03:48:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138237 to 54498. [2021-06-05 03:48:50,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.995963080536543) internal successors, (326762), 54497 states have internal predecessors, (326762), 0 states have call successors, (0), 0 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 03:48:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326762 transitions. [2021-06-05 03:48:51,080 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326762 transitions. Word has length 37 [2021-06-05 03:48:51,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:51,080 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326762 transitions. [2021-06-05 03:48:51,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326762 transitions. [2021-06-05 03:48:51,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:48:51,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:51,225 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] [2021-06-05 03:48:51,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 03:48:51,225 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:51,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1683646941, now seen corresponding path program 7 times [2021-06-05 03:48:51,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:51,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601909130] [2021-06-05 03:48:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:51,490 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 03:48:51,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:51,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601909130] [2021-06-05 03:48:51,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601909130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:51,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:51,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:48:51,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984663507] [2021-06-05 03:48:51,490 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:48:51,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:51,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:48:51,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:51,491 INFO L87 Difference]: Start difference. First operand 54498 states and 326762 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:48:52,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:52,941 INFO L93 Difference]: Finished difference Result 141534 states and 796137 transitions. [2021-06-05 03:48:52,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:48:52,943 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:48:52,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:54,444 INFO L225 Difference]: With dead ends: 141534 [2021-06-05 03:48:54,444 INFO L226 Difference]: Without dead ends: 138740 [2021-06-05 03:48:54,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:49:02,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138740 states. [2021-06-05 03:49:04,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138740 to 55263. [2021-06-05 03:49:04,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55263 states, 55262 states have (on average 5.981144366834353) internal successors, (330530), 55262 states have internal predecessors, (330530), 0 states have call successors, (0), 0 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 03:49:04,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55263 states to 55263 states and 330530 transitions. [2021-06-05 03:49:04,919 INFO L78 Accepts]: Start accepts. Automaton has 55263 states and 330530 transitions. Word has length 37 [2021-06-05 03:49:04,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:04,919 INFO L482 AbstractCegarLoop]: Abstraction has 55263 states and 330530 transitions. [2021-06-05 03:49:04,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:04,919 INFO L276 IsEmpty]: Start isEmpty. Operand 55263 states and 330530 transitions. [2021-06-05 03:49:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:49:05,599 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:05,599 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] [2021-06-05 03:49:05,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 03:49:05,608 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:05,609 INFO L82 PathProgramCache]: Analyzing trace with hash 93712191, now seen corresponding path program 8 times [2021-06-05 03:49:05,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:05,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792839920] [2021-06-05 03:49:05,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:06,062 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 03:49:06,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:06,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792839920] [2021-06-05 03:49:06,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792839920] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:06,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:06,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:49:06,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567945670] [2021-06-05 03:49:06,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:49:06,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:06,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:49:06,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:06,064 INFO L87 Difference]: Start difference. First operand 55263 states and 330530 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:07,848 INFO L93 Difference]: Finished difference Result 141772 states and 797000 transitions. [2021-06-05 03:49:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:49:07,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:49:07,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:08,462 INFO L225 Difference]: With dead ends: 141772 [2021-06-05 03:49:08,463 INFO L226 Difference]: Without dead ends: 138229 [2021-06-05 03:49:08,463 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 367.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:49:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138229 states. [2021-06-05 03:49:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138229 to 54752. [2021-06-05 03:49:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54752 states, 54751 states have (on average 5.990265017990539) internal successors, (327973), 54751 states have internal predecessors, (327973), 0 states have call successors, (0), 0 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 03:49:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54752 states to 54752 states and 327973 transitions. [2021-06-05 03:49:18,061 INFO L78 Accepts]: Start accepts. Automaton has 54752 states and 327973 transitions. Word has length 37 [2021-06-05 03:49:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:18,061 INFO L482 AbstractCegarLoop]: Abstraction has 54752 states and 327973 transitions. [2021-06-05 03:49:18,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:18,061 INFO L276 IsEmpty]: Start isEmpty. Operand 54752 states and 327973 transitions. [2021-06-05 03:49:18,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:49:18,197 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:18,197 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] [2021-06-05 03:49:18,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 03:49:18,197 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:18,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:18,197 INFO L82 PathProgramCache]: Analyzing trace with hash -4599331, now seen corresponding path program 9 times [2021-06-05 03:49:18,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:18,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39724363] [2021-06-05 03:49:18,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:18,487 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 03:49:18,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:18,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39724363] [2021-06-05 03:49:18,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39724363] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:18,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:18,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:49:18,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364448424] [2021-06-05 03:49:18,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:49:18,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:18,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:49:18,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:18,488 INFO L87 Difference]: Start difference. First operand 54752 states and 327973 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:20,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:20,021 INFO L93 Difference]: Finished difference Result 141365 states and 795171 transitions. [2021-06-05 03:49:20,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:49:20,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:49:20,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:20,586 INFO L225 Difference]: With dead ends: 141365 [2021-06-05 03:49:20,587 INFO L226 Difference]: Without dead ends: 138571 [2021-06-05 03:49:20,587 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 259.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:49:27,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138571 states. [2021-06-05 03:49:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138571 to 55132. [2021-06-05 03:49:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55132 states, 55131 states have (on average 5.980174493479168) internal successors, (329693), 55131 states have internal predecessors, (329693), 0 states have call successors, (0), 0 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 03:49:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55132 states to 55132 states and 329693 transitions. [2021-06-05 03:49:29,859 INFO L78 Accepts]: Start accepts. Automaton has 55132 states and 329693 transitions. Word has length 37 [2021-06-05 03:49:29,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:29,859 INFO L482 AbstractCegarLoop]: Abstraction has 55132 states and 329693 transitions. [2021-06-05 03:49:29,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:29,860 INFO L276 IsEmpty]: Start isEmpty. Operand 55132 states and 329693 transitions. [2021-06-05 03:49:29,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:49:29,985 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:29,985 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] [2021-06-05 03:49:29,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 03:49:29,986 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:29,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:29,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1675897309, now seen corresponding path program 10 times [2021-06-05 03:49:29,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:29,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897014054] [2021-06-05 03:49:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:30,878 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 03:49:30,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:30,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897014054] [2021-06-05 03:49:30,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897014054] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:30,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:30,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:49:30,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603680596] [2021-06-05 03:49:30,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:49:30,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:30,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:49:30,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:30,880 INFO L87 Difference]: Start difference. First operand 55132 states and 329693 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:32,570 INFO L93 Difference]: Finished difference Result 141565 states and 795911 transitions. [2021-06-05 03:49:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:49:32,571 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:49:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:33,205 INFO L225 Difference]: With dead ends: 141565 [2021-06-05 03:49:33,206 INFO L226 Difference]: Without dead ends: 138191 [2021-06-05 03:49:33,206 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 382.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:49:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138191 states. [2021-06-05 03:49:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138191 to 54752. [2021-06-05 03:49:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54752 states, 54751 states have (on average 5.986794761739511) internal successors, (327783), 54751 states have internal predecessors, (327783), 0 states have call successors, (0), 0 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 03:49:42,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54752 states to 54752 states and 327783 transitions. [2021-06-05 03:49:42,853 INFO L78 Accepts]: Start accepts. Automaton has 54752 states and 327783 transitions. Word has length 37 [2021-06-05 03:49:42,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:42,853 INFO L482 AbstractCegarLoop]: Abstraction has 54752 states and 327783 transitions. [2021-06-05 03:49:42,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 54752 states and 327783 transitions. [2021-06-05 03:49:42,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:49:42,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:42,978 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] [2021-06-05 03:49:42,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 03:49:42,978 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:42,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:42,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1412562623, now seen corresponding path program 11 times [2021-06-05 03:49:42,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:42,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172981787] [2021-06-05 03:49:42,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:43,256 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 03:49:43,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:43,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172981787] [2021-06-05 03:49:43,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172981787] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:43,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:43,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:49:43,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766077441] [2021-06-05 03:49:43,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:49:43,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:43,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:49:43,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:43,259 INFO L87 Difference]: Start difference. First operand 54752 states and 327783 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:44,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:44,844 INFO L93 Difference]: Finished difference Result 141944 states and 798093 transitions. [2021-06-05 03:49:44,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:49:44,851 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:49:44,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:45,421 INFO L225 Difference]: With dead ends: 141944 [2021-06-05 03:49:45,422 INFO L226 Difference]: Without dead ends: 138912 [2021-06-05 03:49:45,422 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 301.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:49:52,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138912 states. [2021-06-05 03:49:54,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138912 to 55235. [2021-06-05 03:49:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55235 states, 55234 states have (on average 5.974942969909838) internal successors, (330020), 55234 states have internal predecessors, (330020), 0 states have call successors, (0), 0 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 03:49:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55235 states to 55235 states and 330020 transitions. [2021-06-05 03:49:54,730 INFO L78 Accepts]: Start accepts. Automaton has 55235 states and 330020 transitions. Word has length 37 [2021-06-05 03:49:54,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:54,731 INFO L482 AbstractCegarLoop]: Abstraction has 55235 states and 330020 transitions. [2021-06-05 03:49:54,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 55235 states and 330020 transitions. [2021-06-05 03:49:54,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:49:54,869 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:54,869 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] [2021-06-05 03:49:54,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 03:49:54,869 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:54,869 INFO L82 PathProgramCache]: Analyzing trace with hash 20418077, now seen corresponding path program 12 times [2021-06-05 03:49:54,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:54,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975210045] [2021-06-05 03:49:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:55,136 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 03:49:55,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:55,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975210045] [2021-06-05 03:49:55,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975210045] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:55,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:55,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:49:55,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979642742] [2021-06-05 03:49:55,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:49:55,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:55,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:49:55,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:55,139 INFO L87 Difference]: Start difference. First operand 55235 states and 330020 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:49:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:56,727 INFO L93 Difference]: Finished difference Result 141906 states and 797484 transitions. [2021-06-05 03:49:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:49:56,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:49:56,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:58,108 INFO L225 Difference]: With dead ends: 141906 [2021-06-05 03:49:58,108 INFO L226 Difference]: Without dead ends: 138175 [2021-06-05 03:49:58,108 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 291.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:50:05,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138175 states. [2021-06-05 03:50:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138175 to 54498. [2021-06-05 03:50:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.993632677028093) internal successors, (326635), 54497 states have internal predecessors, (326635), 0 states have call successors, (0), 0 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 03:50:08,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326635 transitions. [2021-06-05 03:50:08,049 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326635 transitions. Word has length 37 [2021-06-05 03:50:08,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:08,049 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326635 transitions. [2021-06-05 03:50:08,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326635 transitions. [2021-06-05 03:50:08,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:50:08,221 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:08,221 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] [2021-06-05 03:50:08,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 03:50:08,222 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:08,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:08,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2071651903, now seen corresponding path program 13 times [2021-06-05 03:50:08,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:08,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811483875] [2021-06-05 03:50:08,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:08,484 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 03:50:08,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:08,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811483875] [2021-06-05 03:50:08,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811483875] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:08,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:08,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:50:08,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217302645] [2021-06-05 03:50:08,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:50:08,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:08,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:50:08,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:08,485 INFO L87 Difference]: Start difference. First operand 54498 states and 326635 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:10,341 INFO L93 Difference]: Finished difference Result 141183 states and 794445 transitions. [2021-06-05 03:50:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:50:10,342 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:50:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:11,385 INFO L225 Difference]: With dead ends: 141183 [2021-06-05 03:50:11,385 INFO L226 Difference]: Without dead ends: 138389 [2021-06-05 03:50:11,385 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 250.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:50:19,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138389 states. [2021-06-05 03:50:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138389 to 55070. [2021-06-05 03:50:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55070 states, 55069 states have (on average 5.983493435508181) internal successors, (329505), 55069 states have internal predecessors, (329505), 0 states have call successors, (0), 0 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 03:50:21,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55070 states to 55070 states and 329505 transitions. [2021-06-05 03:50:21,596 INFO L78 Accepts]: Start accepts. Automaton has 55070 states and 329505 transitions. Word has length 37 [2021-06-05 03:50:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:21,596 INFO L482 AbstractCegarLoop]: Abstraction has 55070 states and 329505 transitions. [2021-06-05 03:50:21,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 55070 states and 329505 transitions. [2021-06-05 03:50:21,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:50:21,731 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:21,731 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] [2021-06-05 03:50:21,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 03:50:21,732 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:21,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1215017409, now seen corresponding path program 14 times [2021-06-05 03:50:21,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:21,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682648577] [2021-06-05 03:50:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:21,965 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 03:50:21,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:21,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682648577] [2021-06-05 03:50:21,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682648577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:21,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:21,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:50:21,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254520152] [2021-06-05 03:50:21,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:50:21,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:21,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:50:21,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:21,966 INFO L87 Difference]: Start difference. First operand 55070 states and 329505 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:23,402 INFO L93 Difference]: Finished difference Result 141407 states and 795267 transitions. [2021-06-05 03:50:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:50:23,402 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:50:23,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:24,550 INFO L225 Difference]: With dead ends: 141407 [2021-06-05 03:50:24,551 INFO L226 Difference]: Without dead ends: 138007 [2021-06-05 03:50:24,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 242.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:50:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138007 states. [2021-06-05 03:50:33,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138007 to 54688. [2021-06-05 03:50:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54688 states, 54687 states have (on average 5.990271911057473) internal successors, (327590), 54687 states have internal predecessors, (327590), 0 states have call successors, (0), 0 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 03:50:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54688 states to 54688 states and 327590 transitions. [2021-06-05 03:50:33,390 INFO L78 Accepts]: Start accepts. Automaton has 54688 states and 327590 transitions. Word has length 37 [2021-06-05 03:50:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:33,390 INFO L482 AbstractCegarLoop]: Abstraction has 54688 states and 327590 transitions. [2021-06-05 03:50:33,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 54688 states and 327590 transitions. [2021-06-05 03:50:34,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:50:34,061 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:34,062 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] [2021-06-05 03:50:34,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 03:50:34,062 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:34,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:34,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1224854941, now seen corresponding path program 15 times [2021-06-05 03:50:34,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:34,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783446893] [2021-06-05 03:50:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:34,493 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 03:50:34,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:34,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783446893] [2021-06-05 03:50:34,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783446893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:34,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:34,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:50:34,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120534387] [2021-06-05 03:50:34,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:50:34,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:34,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:50:34,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:34,495 INFO L87 Difference]: Start difference. First operand 54688 states and 327590 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:36,205 INFO L93 Difference]: Finished difference Result 141157 states and 794164 transitions. [2021-06-05 03:50:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:50:36,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:50:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:36,825 INFO L225 Difference]: With dead ends: 141157 [2021-06-05 03:50:36,826 INFO L226 Difference]: Without dead ends: 138363 [2021-06-05 03:50:36,826 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 313.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:50:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138363 states. [2021-06-05 03:50:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138363 to 55068. [2021-06-05 03:50:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55068 states, 55067 states have (on average 5.9801696115640945) internal successors, (329310), 55067 states have internal predecessors, (329310), 0 states have call successors, (0), 0 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 03:50:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55068 states to 55068 states and 329310 transitions. [2021-06-05 03:50:46,294 INFO L78 Accepts]: Start accepts. Automaton has 55068 states and 329310 transitions. Word has length 37 [2021-06-05 03:50:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:46,294 INFO L482 AbstractCegarLoop]: Abstraction has 55068 states and 329310 transitions. [2021-06-05 03:50:46,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 55068 states and 329310 transitions. [2021-06-05 03:50:46,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:50:46,424 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:46,424 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] [2021-06-05 03:50:46,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 03:50:46,425 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:46,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:46,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1194995263, now seen corresponding path program 16 times [2021-06-05 03:50:46,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:46,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757237827] [2021-06-05 03:50:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:46,696 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 03:50:46,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:46,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757237827] [2021-06-05 03:50:46,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757237827] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:46,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:46,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:50:46,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108326496] [2021-06-05 03:50:46,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:50:46,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:46,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:50:46,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:46,698 INFO L87 Difference]: Start difference. First operand 55068 states and 329310 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:48,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:48,222 INFO L93 Difference]: Finished difference Result 141357 states and 794904 transitions. [2021-06-05 03:50:48,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:50:48,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:50:48,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:48,799 INFO L225 Difference]: With dead ends: 141357 [2021-06-05 03:50:48,799 INFO L226 Difference]: Without dead ends: 137983 [2021-06-05 03:50:48,799 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 272.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:50:56,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137983 states. [2021-06-05 03:50:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137983 to 54688. [2021-06-05 03:50:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54688 states, 54687 states have (on average 5.9867975935779985) internal successors, (327400), 54687 states have internal predecessors, (327400), 0 states have call successors, (0), 0 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 03:50:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54688 states to 54688 states and 327400 transitions. [2021-06-05 03:50:58,005 INFO L78 Accepts]: Start accepts. Automaton has 54688 states and 327400 transitions. Word has length 37 [2021-06-05 03:50:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:58,005 INFO L482 AbstractCegarLoop]: Abstraction has 54688 states and 327400 transitions. [2021-06-05 03:50:58,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:50:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 54688 states and 327400 transitions. [2021-06-05 03:50:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:50:58,133 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:58,133 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] [2021-06-05 03:50:58,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 03:50:58,134 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:58,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1165449665, now seen corresponding path program 17 times [2021-06-05 03:50:58,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:58,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050304067] [2021-06-05 03:50:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:58,988 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 03:50:58,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:58,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050304067] [2021-06-05 03:50:58,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050304067] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:58,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:58,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:50:58,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6991982] [2021-06-05 03:50:58,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:50:58,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:59,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:50:59,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:59,001 INFO L87 Difference]: Start difference. First operand 54688 states and 327400 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:00,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:00,642 INFO L93 Difference]: Finished difference Result 141707 states and 796999 transitions. [2021-06-05 03:51:00,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:51:00,642 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:51:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:01,308 INFO L225 Difference]: With dead ends: 141707 [2021-06-05 03:51:01,309 INFO L226 Difference]: Without dead ends: 138689 [2021-06-05 03:51:01,309 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 341.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:51:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138689 states. [2021-06-05 03:51:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138689 to 55170. [2021-06-05 03:51:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55170 states, 55169 states have (on average 5.975004078377349) internal successors, (329635), 55169 states have internal predecessors, (329635), 0 states have call successors, (0), 0 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 03:51:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55170 states to 55170 states and 329635 transitions. [2021-06-05 03:51:10,859 INFO L78 Accepts]: Start accepts. Automaton has 55170 states and 329635 transitions. Word has length 37 [2021-06-05 03:51:10,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:10,860 INFO L482 AbstractCegarLoop]: Abstraction has 55170 states and 329635 transitions. [2021-06-05 03:51:10,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 55170 states and 329635 transitions. [2021-06-05 03:51:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:51:10,986 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:10,986 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] [2021-06-05 03:51:10,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 03:51:10,986 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:10,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:10,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1086180637, now seen corresponding path program 18 times [2021-06-05 03:51:10,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:10,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883166625] [2021-06-05 03:51:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:11,243 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 03:51:11,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:11,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883166625] [2021-06-05 03:51:11,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883166625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:11,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:11,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:51:11,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9116356] [2021-06-05 03:51:11,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:51:11,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:11,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:51:11,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:11,244 INFO L87 Difference]: Start difference. First operand 55170 states and 329635 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:12,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:12,746 INFO L93 Difference]: Finished difference Result 141683 states and 796433 transitions. [2021-06-05 03:51:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:51:12,746 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:51:12,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:13,306 INFO L225 Difference]: With dead ends: 141683 [2021-06-05 03:51:13,306 INFO L226 Difference]: Without dead ends: 138017 [2021-06-05 03:51:13,306 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:51:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138017 states. [2021-06-05 03:51:22,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138017 to 54498. [2021-06-05 03:51:22,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.991889461805237) internal successors, (326540), 54497 states have internal predecessors, (326540), 0 states have call successors, (0), 0 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 03:51:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326540 transitions. [2021-06-05 03:51:22,615 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326540 transitions. Word has length 37 [2021-06-05 03:51:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:22,616 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326540 transitions. [2021-06-05 03:51:22,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326540 transitions. [2021-06-05 03:51:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:51:22,749 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:22,749 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] [2021-06-05 03:51:22,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 03:51:22,749 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:22,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1499211103, now seen corresponding path program 19 times [2021-06-05 03:51:22,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:22,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132721639] [2021-06-05 03:51:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:22,987 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 03:51:22,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:22,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132721639] [2021-06-05 03:51:22,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132721639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:22,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:22,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:51:22,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452022123] [2021-06-05 03:51:22,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:51:22,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:22,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:51:22,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:22,989 INFO L87 Difference]: Start difference. First operand 54498 states and 326540 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:24,598 INFO L93 Difference]: Finished difference Result 142277 states and 800364 transitions. [2021-06-05 03:51:24,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:51:24,598 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:51:24,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:26,737 INFO L225 Difference]: With dead ends: 142277 [2021-06-05 03:51:26,737 INFO L226 Difference]: Without dead ends: 139245 [2021-06-05 03:51:26,737 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:51:35,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139245 states. [2021-06-05 03:51:37,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139245 to 55234. [2021-06-05 03:51:37,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55234 states, 55233 states have (on average 5.979975739141455) internal successors, (330292), 55233 states have internal predecessors, (330292), 0 states have call successors, (0), 0 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 03:51:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55234 states to 55234 states and 330292 transitions. [2021-06-05 03:51:38,090 INFO L78 Accepts]: Start accepts. Automaton has 55234 states and 330292 transitions. Word has length 37 [2021-06-05 03:51:38,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:38,091 INFO L482 AbstractCegarLoop]: Abstraction has 55234 states and 330292 transitions. [2021-06-05 03:51:38,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:38,091 INFO L276 IsEmpty]: Start isEmpty. Operand 55234 states and 330292 transitions. [2021-06-05 03:51:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:51:38,332 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:38,332 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] [2021-06-05 03:51:38,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 03:51:38,332 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:38,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:38,333 INFO L82 PathProgramCache]: Analyzing trace with hash 752419199, now seen corresponding path program 20 times [2021-06-05 03:51:38,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:38,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987594561] [2021-06-05 03:51:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:38,606 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 03:51:38,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:38,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987594561] [2021-06-05 03:51:38,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987594561] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:38,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:38,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:51:38,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666861796] [2021-06-05 03:51:38,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:51:38,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:38,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:51:38,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:38,608 INFO L87 Difference]: Start difference. First operand 55234 states and 330292 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:40,226 INFO L93 Difference]: Finished difference Result 142263 states and 799827 transitions. [2021-06-05 03:51:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:51:40,227 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:51:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:40,794 INFO L225 Difference]: With dead ends: 142263 [2021-06-05 03:51:40,795 INFO L226 Difference]: Without dead ends: 138750 [2021-06-05 03:51:40,795 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 276.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:51:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138750 states. [2021-06-05 03:51:49,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138750 to 54739. [2021-06-05 03:51:49,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54739 states, 54738 states have (on average 5.988125251196609) internal successors, (327778), 54738 states have internal predecessors, (327778), 0 states have call successors, (0), 0 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 03:51:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54739 states to 54739 states and 327778 transitions. [2021-06-05 03:51:49,957 INFO L78 Accepts]: Start accepts. Automaton has 54739 states and 327778 transitions. Word has length 37 [2021-06-05 03:51:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:49,957 INFO L482 AbstractCegarLoop]: Abstraction has 54739 states and 327778 transitions. [2021-06-05 03:51:49,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 54739 states and 327778 transitions. [2021-06-05 03:51:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:51:50,079 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:50,079 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] [2021-06-05 03:51:50,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 03:51:50,079 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:50,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1948959231, now seen corresponding path program 21 times [2021-06-05 03:51:50,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:50,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27718453] [2021-06-05 03:51:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:50,315 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 03:51:50,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:50,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27718453] [2021-06-05 03:51:50,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27718453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:50,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:50,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:51:50,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365971916] [2021-06-05 03:51:50,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:51:50,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:50,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:51:50,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:50,316 INFO L87 Difference]: Start difference. First operand 54739 states and 327778 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:51:51,182 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-06-05 03:51:51,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:51,791 INFO L93 Difference]: Finished difference Result 142241 states and 799991 transitions. [2021-06-05 03:51:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:51:51,791 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:51:51,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:52,898 INFO L225 Difference]: With dead ends: 142241 [2021-06-05 03:51:52,898 INFO L226 Difference]: Without dead ends: 139209 [2021-06-05 03:51:52,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 828.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:51:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139209 states. [2021-06-05 03:52:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139209 to 55222. [2021-06-05 03:52:01,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55222 states, 55221 states have (on average 5.9762590318900415) internal successors, (330015), 55221 states have internal predecessors, (330015), 0 states have call successors, (0), 0 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 03:52:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55222 states to 55222 states and 330015 transitions. [2021-06-05 03:52:02,386 INFO L78 Accepts]: Start accepts. Automaton has 55222 states and 330015 transitions. Word has length 37 [2021-06-05 03:52:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:02,387 INFO L482 AbstractCegarLoop]: Abstraction has 55222 states and 330015 transitions. [2021-06-05 03:52:02,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 55222 states and 330015 transitions. [2021-06-05 03:52:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:52:02,605 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:02,605 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] [2021-06-05 03:52:02,605 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 03:52:02,605 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:52:02,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:02,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1153541633, now seen corresponding path program 22 times [2021-06-05 03:52:02,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:02,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868668464] [2021-06-05 03:52:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:02,881 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 03:52:02,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:02,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868668464] [2021-06-05 03:52:02,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868668464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:02,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:02,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:52:02,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521898535] [2021-06-05 03:52:02,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:52:02,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:02,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:52:02,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:02,882 INFO L87 Difference]: Start difference. First operand 55222 states and 330015 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:04,533 INFO L93 Difference]: Finished difference Result 142203 states and 799382 transitions. [2021-06-05 03:52:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:52:04,534 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:52:04,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:05,121 INFO L225 Difference]: With dead ends: 142203 [2021-06-05 03:52:05,122 INFO L226 Difference]: Without dead ends: 138726 [2021-06-05 03:52:05,122 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:52:12,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138726 states. [2021-06-05 03:52:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138726 to 54739. [2021-06-05 03:52:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54739 states, 54738 states have (on average 5.983722459717198) internal successors, (327537), 54738 states have internal predecessors, (327537), 0 states have call successors, (0), 0 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 03:52:14,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54739 states to 54739 states and 327537 transitions. [2021-06-05 03:52:14,319 INFO L78 Accepts]: Start accepts. Automaton has 54739 states and 327537 transitions. Word has length 37 [2021-06-05 03:52:14,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:14,319 INFO L482 AbstractCegarLoop]: Abstraction has 54739 states and 327537 transitions. [2021-06-05 03:52:14,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 54739 states and 327537 transitions. [2021-06-05 03:52:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:52:14,452 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:14,452 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] [2021-06-05 03:52:14,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 03:52:14,452 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:52:14,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:14,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1363660451, now seen corresponding path program 23 times [2021-06-05 03:52:14,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:14,452 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500420486] [2021-06-05 03:52:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:14,720 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 03:52:14,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:14,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500420486] [2021-06-05 03:52:14,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500420486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:14,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:14,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:52:14,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271514794] [2021-06-05 03:52:14,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:52:14,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:14,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:52:14,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:14,722 INFO L87 Difference]: Start difference. First operand 54739 states and 327537 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:16,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:16,176 INFO L93 Difference]: Finished difference Result 142212 states and 799663 transitions. [2021-06-05 03:52:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:52:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:52:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:17,315 INFO L225 Difference]: With dead ends: 142212 [2021-06-05 03:52:17,316 INFO L226 Difference]: Without dead ends: 139194 [2021-06-05 03:52:17,316 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 286.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:52:24,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139194 states. [2021-06-05 03:52:25,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139194 to 55221. [2021-06-05 03:52:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55221 states, 55220 states have (on average 5.971966678739587) internal successors, (329772), 55220 states have internal predecessors, (329772), 0 states have call successors, (0), 0 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 03:52:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55221 states to 55221 states and 329772 transitions. [2021-06-05 03:52:26,181 INFO L78 Accepts]: Start accepts. Automaton has 55221 states and 329772 transitions. Word has length 37 [2021-06-05 03:52:26,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:26,181 INFO L482 AbstractCegarLoop]: Abstraction has 55221 states and 329772 transitions. [2021-06-05 03:52:26,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 55221 states and 329772 transitions. [2021-06-05 03:52:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:52:26,897 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:26,897 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] [2021-06-05 03:52:26,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 03:52:26,898 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:52:26,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:26,900 INFO L82 PathProgramCache]: Analyzing trace with hash -282597825, now seen corresponding path program 24 times [2021-06-05 03:52:26,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:26,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087525402] [2021-06-05 03:52:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:27,235 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 03:52:27,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:27,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087525402] [2021-06-05 03:52:27,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087525402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:27,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:27,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:52:27,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034027955] [2021-06-05 03:52:27,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:52:27,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:27,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:52:27,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:27,236 INFO L87 Difference]: Start difference. First operand 55221 states and 329772 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:28,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:28,902 INFO L93 Difference]: Finished difference Result 142188 states and 799097 transitions. [2021-06-05 03:52:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:52:28,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:52:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:29,493 INFO L225 Difference]: With dead ends: 142188 [2021-06-05 03:52:29,493 INFO L226 Difference]: Without dead ends: 138280 [2021-06-05 03:52:29,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:52:36,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138280 states. [2021-06-05 03:52:38,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138280 to 54307. [2021-06-05 03:52:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54307 states, 54306 states have (on average 5.998858321364122) internal successors, (325774), 54306 states have internal predecessors, (325774), 0 states have call successors, (0), 0 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 03:52:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54307 states to 54307 states and 325774 transitions. [2021-06-05 03:52:38,882 INFO L78 Accepts]: Start accepts. Automaton has 54307 states and 325774 transitions. Word has length 37 [2021-06-05 03:52:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:38,882 INFO L482 AbstractCegarLoop]: Abstraction has 54307 states and 325774 transitions. [2021-06-05 03:52:38,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:38,882 INFO L276 IsEmpty]: Start isEmpty. Operand 54307 states and 325774 transitions. [2021-06-05 03:52:39,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:52:39,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:39,004 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] [2021-06-05 03:52:39,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 03:52:39,004 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:52:39,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:39,004 INFO L82 PathProgramCache]: Analyzing trace with hash 715667261, now seen corresponding path program 25 times [2021-06-05 03:52:39,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:39,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563602022] [2021-06-05 03:52:39,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:39,263 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 03:52:39,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:39,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563602022] [2021-06-05 03:52:39,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563602022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:39,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:39,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:52:39,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849858534] [2021-06-05 03:52:39,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:52:39,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:39,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:52:39,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:39,265 INFO L87 Difference]: Start difference. First operand 54307 states and 325774 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:41,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:41,197 INFO L93 Difference]: Finished difference Result 141506 states and 796059 transitions. [2021-06-05 03:52:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:52:41,197 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:52:41,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:42,177 INFO L225 Difference]: With dead ends: 141506 [2021-06-05 03:52:42,178 INFO L226 Difference]: Without dead ends: 138712 [2021-06-05 03:52:42,178 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 257.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:52:50,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138712 states. [2021-06-05 03:52:52,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138712 to 55295. [2021-06-05 03:52:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55295 states, 55294 states have (on average 5.981426556226715) internal successors, (330737), 55294 states have internal predecessors, (330737), 0 states have call successors, (0), 0 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 03:52:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55295 states to 55295 states and 330737 transitions. [2021-06-05 03:52:52,364 INFO L78 Accepts]: Start accepts. Automaton has 55295 states and 330737 transitions. Word has length 37 [2021-06-05 03:52:52,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:52,364 INFO L482 AbstractCegarLoop]: Abstraction has 55295 states and 330737 transitions. [2021-06-05 03:52:52,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:52,364 INFO L276 IsEmpty]: Start isEmpty. Operand 55295 states and 330737 transitions. [2021-06-05 03:52:52,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:52:52,488 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:52,489 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] [2021-06-05 03:52:52,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 03:52:52,489 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:52:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:52,489 INFO L82 PathProgramCache]: Analyzing trace with hash -874267489, now seen corresponding path program 26 times [2021-06-05 03:52:52,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:52,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039217476] [2021-06-05 03:52:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:52,746 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 03:52:52,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:52,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039217476] [2021-06-05 03:52:52,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039217476] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:52,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:52,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:52:52,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106613636] [2021-06-05 03:52:52,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:52:52,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:52,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:52:52,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:52,747 INFO L87 Difference]: Start difference. First operand 55295 states and 330737 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:52:54,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:54,320 INFO L93 Difference]: Finished difference Result 141744 states and 796922 transitions. [2021-06-05 03:52:54,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:52:54,320 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:52:54,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:55,492 INFO L225 Difference]: With dead ends: 141744 [2021-06-05 03:52:55,493 INFO L226 Difference]: Without dead ends: 138201 [2021-06-05 03:52:55,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 304.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:53:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138201 states. [2021-06-05 03:53:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138201 to 54784. [2021-06-05 03:53:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54784 states, 54783 states have (on average 5.990526258145775) internal successors, (328179), 54783 states have internal predecessors, (328179), 0 states have call successors, (0), 0 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 03:53:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54784 states to 54784 states and 328179 transitions. [2021-06-05 03:53:05,061 INFO L78 Accepts]: Start accepts. Automaton has 54784 states and 328179 transitions. Word has length 37 [2021-06-05 03:53:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:53:05,061 INFO L482 AbstractCegarLoop]: Abstraction has 54784 states and 328179 transitions. [2021-06-05 03:53:05,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:53:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 54784 states and 328179 transitions. [2021-06-05 03:53:05,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:53:05,231 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:53:05,231 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] [2021-06-05 03:53:05,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 03:53:05,232 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:53:05,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:53:05,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1796729887, now seen corresponding path program 27 times [2021-06-05 03:53:05,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:53:05,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452693563] [2021-06-05 03:53:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:53:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:53:05,513 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 03:53:05,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:53:05,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452693563] [2021-06-05 03:53:05,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452693563] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:53:05,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:53:05,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:53:05,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699703349] [2021-06-05 03:53:05,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:53:05,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:53:05,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:53:05,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:53:05,515 INFO L87 Difference]: Start difference. First operand 54784 states and 328179 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:53:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:53:07,298 INFO L93 Difference]: Finished difference Result 141363 states and 795183 transitions. [2021-06-05 03:53:07,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:53:07,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:53:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:53:07,876 INFO L225 Difference]: With dead ends: 141363 [2021-06-05 03:53:07,876 INFO L226 Difference]: Without dead ends: 138569 [2021-06-05 03:53:07,876 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:53:14,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138569 states. [2021-06-05 03:53:16,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138569 to 55166. [2021-06-05 03:53:16,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55166 states, 55165 states have (on average 5.980313604640624) internal successors, (329904), 55165 states have internal predecessors, (329904), 0 states have call successors, (0), 0 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 03:53:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55166 states to 55166 states and 329904 transitions. [2021-06-05 03:53:17,138 INFO L78 Accepts]: Start accepts. Automaton has 55166 states and 329904 transitions. Word has length 37 [2021-06-05 03:53:17,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:53:17,138 INFO L482 AbstractCegarLoop]: Abstraction has 55166 states and 329904 transitions. [2021-06-05 03:53:17,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:53:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand 55166 states and 329904 transitions. [2021-06-05 03:53:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 03:53:17,273 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:53:17,273 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] [2021-06-05 03:53:17,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 03:53:17,273 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:53:17,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:53:17,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1489939425, now seen corresponding path program 28 times [2021-06-05 03:53:17,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:53:17,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096422022] [2021-06-05 03:53:17,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:53:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:53:17,491 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 03:53:17,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:53:17,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096422022] [2021-06-05 03:53:17,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096422022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:53:17,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:53:17,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 03:53:17,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571201645] [2021-06-05 03:53:17,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 03:53:17,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:53:17,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 03:53:17,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:53:17,492 INFO L87 Difference]: Start difference. First operand 55166 states and 329904 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 03:53:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:53:19,052 INFO L93 Difference]: Finished difference Result 141587 states and 796005 transitions. [2021-06-05 03:53:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:53:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-06-05 03:53:19,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:53:20,226 INFO L225 Difference]: With dead ends: 141587 [2021-06-05 03:53:20,227 INFO L226 Difference]: Without dead ends: 138187 [2021-06-05 03:53:20,227 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 Received shutdown request... [2021-06-05 03:53:27,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138187 states. [2021-06-05 03:53:27,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 03:53:27,210 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 03:53:27,211 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:53:27,213 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 03:53:27,214 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:53:27 BasicIcfg [2021-06-05 03:53:27,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:53:27,214 INFO L168 Benchmark]: Toolchain (without parser) took 681801.29 ms. Allocated memory was 371.2 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 351.0 MB in the beginning and 10.5 GB in the end (delta: -10.1 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. [2021-06-05 03:53:27,214 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 371.2 MB. Free memory was 352.1 MB in the beginning and 352.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:53:27,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.93 ms. Allocated memory is still 371.2 MB. Free memory was 350.9 MB in the beginning and 349.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:53:27,214 INFO L168 Benchmark]: Boogie Preprocessor took 11.82 ms. Allocated memory is still 371.2 MB. Free memory was 349.4 MB in the beginning and 348.5 MB in the end (delta: 880.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:53:27,215 INFO L168 Benchmark]: RCFGBuilder took 207.60 ms. Allocated memory is still 371.2 MB. Free memory was 348.4 MB in the beginning and 336.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 03:53:27,215 INFO L168 Benchmark]: TraceAbstraction took 681542.88 ms. Allocated memory was 371.2 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 335.7 MB in the beginning and 10.5 GB in the end (delta: -10.2 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. [2021-06-05 03:53:27,215 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 0.17 ms. Allocated memory is still 371.2 MB. Free memory was 352.1 MB in the beginning and 352.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.93 ms. Allocated memory is still 371.2 MB. Free memory was 350.9 MB in the beginning and 349.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.82 ms. Allocated memory is still 371.2 MB. Free memory was 349.4 MB in the beginning and 348.5 MB in the end (delta: 880.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 207.60 ms. Allocated memory is still 371.2 MB. Free memory was 348.4 MB in the beginning and 336.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 681542.88 ms. Allocated memory was 371.2 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 335.7 MB in the beginning and 10.5 GB in the end (delta: -10.2 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 19]: 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: 16]: 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: 15]: 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: 10]: 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: 14]: 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: 13]: 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: 20]: 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: 18]: 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: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 17]: 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 19 procedures, 85 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 681375.0ms, OverallIterations: 35, TraceHistogramMax: 1, EmptinessCheckTime: 15527.2ms, AutomataDifference: 97378.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 175659.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11192 SDtfs, 25313 SDslu, 32167 SDs, 0 SdLazy, 2777 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2246.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 329 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 8657.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=271988occurred in iteration=0, InterpolantAutomatonStates: 329, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 382562.4ms AutomataMinimizationTime, 35 MinimizatonAttempts, 2257141 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 75.8ms SsaConstructionTime, 161.4ms SatisfiabilityAnalysisTime, 9669.6ms InterpolantComputationTime, 1295 NumberOfCodeBlocks, 1295 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1260 ConstructedInterpolants, 0 QuantifiedInterpolants, 39417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 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