/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 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 21:00:44,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 21:00:44,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 21:00:44,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 21:00:45,012 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 21:00:45,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 21:00:45,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 21:00:45,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 21:00:45,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 21:00:45,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 21:00:45,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 21:00:45,032 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 21:00:45,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 21:00:45,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 21:00:45,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 21:00:45,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 21:00:45,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 21:00:45,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 21:00:45,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 21:00:45,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 21:00:45,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 21:00:45,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 21:00:45,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 21:00:45,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 21:00:45,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 21:00:45,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 21:00:45,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 21:00:45,034 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 21:00:45,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 21:00:45,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 21:00:45,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 21:00:45,308 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 21:00:45,310 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 21:00:45,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2021-06-05 21:00:45,311 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2021-06-05 21:00:45,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 21:00:45,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 21:00:45,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 21:00:45,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 21:00:45,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 21:00:45,456 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,461 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 21:00:45,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 21:00:45,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 21:00:45,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 21:00:45,473 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,473 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,473 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,474 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,475 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,476 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,476 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 09:00:45" (1/1) ... [2021-06-05 21:00:45,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 21:00:45,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 21:00:45,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 21:00:45,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 21:00:45,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:45" (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 21:00:45,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-05 21:00:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-05 21:00:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-05 21:00:45,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-05 21:00:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-05 21:00:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-05 21:00:45,531 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-05 21:00:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-05 21:00:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-05 21:00:45,531 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-05 21:00:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-05 21:00:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-05 21:00:45,531 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-05 21:00:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-05 21:00:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-05 21:00:45,531 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 21:00:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 21:00:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 21:00:45,532 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-05 21:00:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-05 21:00:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-05 21:00:45,532 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-05 21:00:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-05 21:00:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-05 21:00:45,532 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-05 21:00:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-05 21:00:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-05 21:00:45,533 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-06-05 21:00:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-06-05 21:00:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-06-05 21:00:45,533 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 21:00:45,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 21:00:45,671 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 21:00:45,672 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 09:00:45 BoogieIcfgContainer [2021-06-05 21:00:45,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 21:00:45,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 21:00:45,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 21:00:45,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 21:00:45,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:45" (1/2) ... [2021-06-05 21:00:45,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0f64d2 and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 09:00:45, skipping insertion in model container [2021-06-05 21:00:45,676 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 09:00:45" (2/2) ... [2021-06-05 21:00:45,677 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2021-06-05 21:00:45,681 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 21:00:45,681 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 21:00:45,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 21:00:45,681 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 21:00:45,796 INFO L149 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2021-06-05 21:00:45,810 INFO L255 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-06-05 21:00:45,827 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 21:00:45,828 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 21:00:45,828 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 21:00:45,828 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 21:00:45,828 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 21:00:45,828 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 21:00:45,828 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 21:00:45,828 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 21:00:45,836 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 120 transitions, 528 flow [2021-06-05 21:03:52,302 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 21:03:52,715 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 21:03:54,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:03:54,499 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:54,499 INFO L554 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 21:03:54,500 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 21:03:54,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:54,504 INFO L82 PathProgramCache]: Analyzing trace with hash 976744769, now seen corresponding path program 1 times [2021-06-05 21:03:54,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:54,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141432843] [2021-06-05 21:03:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:54,606 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 21:03:54,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:54,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141432843] [2021-06-05 21:03:54,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141432843] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:54,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:54,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:03:54,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173257037] [2021-06-05 21:03:54,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:03:54,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:54,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:03:54,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:03:55,118 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 21:03:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:58,768 INFO L93 Difference]: Finished difference Result 247931 states and 1629507 transitions. [2021-06-05 21:03:58,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:03:58,774 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 21:03:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:01,339 INFO L225 Difference]: With dead ends: 247931 [2021-06-05 21:04:01,340 INFO L226 Difference]: Without dead ends: 247929 [2021-06-05 21:04:01,341 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:04:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247929 states. [2021-06-05 21:04:24,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247929 to 247929. [2021-06-05 21:04:25,313 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 21:04:27,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247929 states to 247929 states and 1629505 transitions. [2021-06-05 21:04:27,561 INFO L78 Accepts]: Start accepts. Automaton has 247929 states and 1629505 transitions. Word has length 37 [2021-06-05 21:04:27,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:27,562 INFO L482 AbstractCegarLoop]: Abstraction has 247929 states and 1629505 transitions. [2021-06-05 21:04:27,562 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 21:04:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 247929 states and 1629505 transitions. [2021-06-05 21:04:28,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:04:28,581 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:28,582 INFO L554 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 21:04:28,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 21:04:28,582 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 21:04:28,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:28,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1934577857, now seen corresponding path program 1 times [2021-06-05 21:04:28,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:28,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967753022] [2021-06-05 21:04:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:28,623 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 21:04:28,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:28,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967753022] [2021-06-05 21:04:28,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967753022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:28,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:28,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:04:28,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908150160] [2021-06-05 21:04:28,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:04:28,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:28,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:04:28,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:04:28,626 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 21:04:31,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:31,096 INFO L93 Difference]: Finished difference Result 205647 states and 1312390 transitions. [2021-06-05 21:04:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:04:31,097 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 21:04:31,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:32,819 INFO L225 Difference]: With dead ends: 205647 [2021-06-05 21:04:32,819 INFO L226 Difference]: Without dead ends: 205647 [2021-06-05 21:04:32,820 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:04:45,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205647 states. [2021-06-05 21:04:50,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205647 to 205647. [2021-06-05 21:04:51,244 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 21:04:53,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205647 states to 205647 states and 1312390 transitions. [2021-06-05 21:04:53,019 INFO L78 Accepts]: Start accepts. Automaton has 205647 states and 1312390 transitions. Word has length 37 [2021-06-05 21:04:53,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:53,020 INFO L482 AbstractCegarLoop]: Abstraction has 205647 states and 1312390 transitions. [2021-06-05 21:04:53,020 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 21:04:53,020 INFO L276 IsEmpty]: Start isEmpty. Operand 205647 states and 1312390 transitions. [2021-06-05 21:04:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:04:54,600 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:54,600 INFO L554 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 21:04:54,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 21:04:54,600 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 21:04:54,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:54,602 INFO L82 PathProgramCache]: Analyzing trace with hash 872555395, now seen corresponding path program 1 times [2021-06-05 21:04:54,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:54,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782258235] [2021-06-05 21:04:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:54,669 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 21:04:54,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:54,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782258235] [2021-06-05 21:04:54,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782258235] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:54,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:54,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:04:54,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299688372] [2021-06-05 21:04:54,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:04:54,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:54,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:04:54,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:04:54,678 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 21:04:56,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:56,513 INFO L93 Difference]: Finished difference Result 151377 states and 949429 transitions. [2021-06-05 21:04:56,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:04:56,515 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 21:04:56,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:57,764 INFO L225 Difference]: With dead ends: 151377 [2021-06-05 21:04:57,765 INFO L226 Difference]: Without dead ends: 151377 [2021-06-05 21:04:57,765 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:07,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151377 states. [2021-06-05 21:05:11,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151377 to 151377. [2021-06-05 21:05:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151377 states, 151376 states have (on average 6.271991597082761) internal successors, (949429), 151376 states have internal predecessors, (949429), 0 states have call successors, (0), 0 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 21:05:12,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151377 states to 151377 states and 949429 transitions. [2021-06-05 21:05:12,912 INFO L78 Accepts]: Start accepts. Automaton has 151377 states and 949429 transitions. Word has length 37 [2021-06-05 21:05:12,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:12,912 INFO L482 AbstractCegarLoop]: Abstraction has 151377 states and 949429 transitions. [2021-06-05 21:05:12,913 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 21:05:12,913 INFO L276 IsEmpty]: Start isEmpty. Operand 151377 states and 949429 transitions. [2021-06-05 21:05:13,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:05:13,977 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:13,977 INFO L554 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 21:05:13,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 21:05:13,978 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 21:05:13,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:13,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1498213033, now seen corresponding path program 1 times [2021-06-05 21:05:13,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:13,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460476495] [2021-06-05 21:05:13,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:14,022 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 21:05:14,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:14,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460476495] [2021-06-05 21:05:14,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460476495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:14,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:14,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:05:14,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749180487] [2021-06-05 21:05:14,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:05:14,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:14,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:05:14,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:14,023 INFO L87 Difference]: Start difference. First operand 151377 states and 949429 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 21:05:15,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:15,326 INFO L93 Difference]: Finished difference Result 114441 states and 702946 transitions. [2021-06-05 21:05:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:05:15,326 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 21:05:15,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:15,879 INFO L225 Difference]: With dead ends: 114441 [2021-06-05 21:05:15,879 INFO L226 Difference]: Without dead ends: 114441 [2021-06-05 21:05:15,879 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114441 states. [2021-06-05 21:05:26,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114441 to 114441. [2021-06-05 21:05:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114441 states, 114440 states have (on average 6.142485145054176) internal successors, (702946), 114440 states have internal predecessors, (702946), 0 states have call successors, (0), 0 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 21:05:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114441 states to 114441 states and 702946 transitions. [2021-06-05 21:05:28,370 INFO L78 Accepts]: Start accepts. Automaton has 114441 states and 702946 transitions. Word has length 37 [2021-06-05 21:05:28,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:28,370 INFO L482 AbstractCegarLoop]: Abstraction has 114441 states and 702946 transitions. [2021-06-05 21:05:28,370 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 21:05:28,370 INFO L276 IsEmpty]: Start isEmpty. Operand 114441 states and 702946 transitions. [2021-06-05 21:05:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:05:28,825 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:28,825 INFO L554 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 21:05:28,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 21:05:28,826 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 21:05:28,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:28,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1104538037, now seen corresponding path program 1 times [2021-06-05 21:05:28,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:28,827 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105694236] [2021-06-05 21:05:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:28,882 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 21:05:28,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:28,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105694236] [2021-06-05 21:05:28,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105694236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:28,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:28,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:05:28,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518159212] [2021-06-05 21:05:28,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:05:28,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:28,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:05:28,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:28,884 INFO L87 Difference]: Start difference. First operand 114441 states and 702946 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 21:05:30,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:30,118 INFO L93 Difference]: Finished difference Result 82635 states and 505387 transitions. [2021-06-05 21:05:30,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:05:30,119 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 21:05:30,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:30,606 INFO L225 Difference]: With dead ends: 82635 [2021-06-05 21:05:30,606 INFO L226 Difference]: Without dead ends: 82635 [2021-06-05 21:05:30,606 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:37,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82635 states. [2021-06-05 21:05:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82635 to 82635. [2021-06-05 21:05:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82635 states, 82634 states have (on average 6.1159692136408745) internal successors, (505387), 82634 states have internal predecessors, (505387), 0 states have call successors, (0), 0 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 21:05:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82635 states to 82635 states and 505387 transitions. [2021-06-05 21:05:40,252 INFO L78 Accepts]: Start accepts. Automaton has 82635 states and 505387 transitions. Word has length 37 [2021-06-05 21:05:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:40,254 INFO L482 AbstractCegarLoop]: Abstraction has 82635 states and 505387 transitions. [2021-06-05 21:05:40,254 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 21:05:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 82635 states and 505387 transitions. [2021-06-05 21:05:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:05:40,521 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:40,521 INFO L554 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 21:05:40,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 21:05:40,522 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 21:05:40,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:40,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1719166793, now seen corresponding path program 1 times [2021-06-05 21:05:40,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:40,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295152024] [2021-06-05 21:05:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:40,549 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 21:05:40,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:40,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295152024] [2021-06-05 21:05:40,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295152024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:40,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:40,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:05:40,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817491606] [2021-06-05 21:05:40,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:05:40,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:40,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:05:40,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:40,550 INFO L87 Difference]: Start difference. First operand 82635 states and 505387 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 21:05:40,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:40,992 INFO L93 Difference]: Finished difference Result 60675 states and 370684 transitions. [2021-06-05 21:05:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:05:40,992 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 21:05:40,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:41,237 INFO L225 Difference]: With dead ends: 60675 [2021-06-05 21:05:41,238 INFO L226 Difference]: Without dead ends: 60675 [2021-06-05 21:05:41,238 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60675 states. [2021-06-05 21:05:48,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60675 to 60675. [2021-06-05 21:05:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60675 states, 60674 states have (on average 6.1094373207634245) internal successors, (370684), 60674 states have internal predecessors, (370684), 0 states have call successors, (0), 0 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 21:05:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60675 states to 60675 states and 370684 transitions. [2021-06-05 21:05:49,328 INFO L78 Accepts]: Start accepts. Automaton has 60675 states and 370684 transitions. Word has length 37 [2021-06-05 21:05:49,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:49,329 INFO L482 AbstractCegarLoop]: Abstraction has 60675 states and 370684 transitions. [2021-06-05 21:05:49,329 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 21:05:49,329 INFO L276 IsEmpty]: Start isEmpty. Operand 60675 states and 370684 transitions. [2021-06-05 21:05:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:05:49,485 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:49,485 INFO L554 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 21:05:49,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 21:05:49,485 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 21:05:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:49,486 INFO L82 PathProgramCache]: Analyzing trace with hash 209843227, now seen corresponding path program 1 times [2021-06-05 21:05:49,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:49,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197780367] [2021-06-05 21:05:49,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:49,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:49,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197780367] [2021-06-05 21:05:49,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197780367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:49,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:49,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:05:49,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569338946] [2021-06-05 21:05:49,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:05:49,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:49,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:05:49,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:49,514 INFO L87 Difference]: Start difference. First operand 60675 states and 370684 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 21:05:50,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:50,216 INFO L93 Difference]: Finished difference Result 45927 states and 279937 transitions. [2021-06-05 21:05:50,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:05:50,216 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 21:05:50,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:50,409 INFO L225 Difference]: With dead ends: 45927 [2021-06-05 21:05:50,409 INFO L226 Difference]: Without dead ends: 45927 [2021-06-05 21:05:50,410 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:05:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45927 states. [2021-06-05 21:05:56,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45927 to 45927. [2021-06-05 21:05:56,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45927 states, 45926 states have (on average 6.0953925880764706) internal successors, (279937), 45926 states have internal predecessors, (279937), 0 states have call successors, (0), 0 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 21:05:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45927 states to 45927 states and 279937 transitions. [2021-06-05 21:05:56,958 INFO L78 Accepts]: Start accepts. Automaton has 45927 states and 279937 transitions. Word has length 37 [2021-06-05 21:05:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:56,959 INFO L482 AbstractCegarLoop]: Abstraction has 45927 states and 279937 transitions. [2021-06-05 21:05:56,959 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 21:05:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand 45927 states and 279937 transitions. [2021-06-05 21:05:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:05:57,156 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:57,156 INFO L554 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 21:05:57,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 21:05:57,156 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 21:05:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:57,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1921994005, now seen corresponding path program 1 times [2021-06-05 21:05:57,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:57,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109371487] [2021-06-05 21:05:57,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:57,476 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 21:05:57,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:57,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109371487] [2021-06-05 21:05:57,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109371487] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:57,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:57,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:05:57,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359772307] [2021-06-05 21:05:57,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:05:57,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:57,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:05:57,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:57,478 INFO L87 Difference]: Start difference. First operand 45927 states and 279937 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 21:05:58,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:58,759 INFO L93 Difference]: Finished difference Result 115540 states and 665633 transitions. [2021-06-05 21:05:58,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:05:58,759 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 21:05:58,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:59,280 INFO L225 Difference]: With dead ends: 115540 [2021-06-05 21:05:59,281 INFO L226 Difference]: Without dead ends: 113366 [2021-06-05 21:05:59,281 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 206.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:06:05,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113366 states. [2021-06-05 21:06:07,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113366 to 47261. [2021-06-05 21:06:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47261 states, 47260 states have (on average 6.0704401184934405) internal successors, (286889), 47260 states have internal predecessors, (286889), 0 states have call successors, (0), 0 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 21:06:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47261 states to 47261 states and 286889 transitions. [2021-06-05 21:06:08,117 INFO L78 Accepts]: Start accepts. Automaton has 47261 states and 286889 transitions. Word has length 37 [2021-06-05 21:06:08,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:08,117 INFO L482 AbstractCegarLoop]: Abstraction has 47261 states and 286889 transitions. [2021-06-05 21:06:08,117 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 21:06:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 47261 states and 286889 transitions. [2021-06-05 21:06:08,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:06:08,303 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:08,303 INFO L554 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 21:06:08,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 21:06:08,303 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 21:06:08,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:08,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1526176329, now seen corresponding path program 2 times [2021-06-05 21:06:08,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:08,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077842480] [2021-06-05 21:06:08,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:08,617 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 21:06:08,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:08,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077842480] [2021-06-05 21:06:08,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077842480] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:08,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:08,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:06:08,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819257255] [2021-06-05 21:06:08,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:06:08,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:08,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:06:08,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:08,619 INFO L87 Difference]: Start difference. First operand 47261 states and 286889 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 21:06:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:10,087 INFO L93 Difference]: Finished difference Result 115283 states and 663904 transitions. [2021-06-05 21:06:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:06:10,087 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 21:06:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:10,552 INFO L225 Difference]: With dead ends: 115283 [2021-06-05 21:06:10,552 INFO L226 Difference]: Without dead ends: 112791 [2021-06-05 21:06:10,552 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 276.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:06:17,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112791 states. [2021-06-05 21:06:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112791 to 46686. [2021-06-05 21:06:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46686 states, 46685 states have (on average 6.082189139980722) internal successors, (283947), 46685 states have internal predecessors, (283947), 0 states have call successors, (0), 0 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 21:06:19,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46686 states to 46686 states and 283947 transitions. [2021-06-05 21:06:19,009 INFO L78 Accepts]: Start accepts. Automaton has 46686 states and 283947 transitions. Word has length 37 [2021-06-05 21:06:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:19,009 INFO L482 AbstractCegarLoop]: Abstraction has 46686 states and 283947 transitions. [2021-06-05 21:06:19,009 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 21:06:19,009 INFO L276 IsEmpty]: Start isEmpty. Operand 46686 states and 283947 transitions. [2021-06-05 21:06:19,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:06:19,177 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:19,177 INFO L554 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 21:06:19,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 21:06:19,177 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 21:06:19,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:19,178 INFO L82 PathProgramCache]: Analyzing trace with hash 349911753, now seen corresponding path program 3 times [2021-06-05 21:06:19,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:19,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632046266] [2021-06-05 21:06:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:19,499 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 21:06:19,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:19,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632046266] [2021-06-05 21:06:19,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632046266] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:19,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:19,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:06:19,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559740190] [2021-06-05 21:06:19,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:06:19,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:19,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:06:19,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:19,500 INFO L87 Difference]: Start difference. First operand 46686 states and 283947 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 21:06:20,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:20,820 INFO L93 Difference]: Finished difference Result 115409 states and 664762 transitions. [2021-06-05 21:06:20,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:06:20,820 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 21:06:20,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:21,581 INFO L225 Difference]: With dead ends: 115409 [2021-06-05 21:06:21,581 INFO L226 Difference]: Without dead ends: 113235 [2021-06-05 21:06:21,582 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 227.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:06:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113235 states. [2021-06-05 21:06:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113235 to 47132. [2021-06-05 21:06:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47132 states, 47131 states have (on average 6.06870212811101) internal successors, (286024), 47131 states have internal predecessors, (286024), 0 states have call successors, (0), 0 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 21:06:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47132 states to 47132 states and 286024 transitions. [2021-06-05 21:06:30,702 INFO L78 Accepts]: Start accepts. Automaton has 47132 states and 286024 transitions. Word has length 37 [2021-06-05 21:06:30,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:30,702 INFO L482 AbstractCegarLoop]: Abstraction has 47132 states and 286024 transitions. [2021-06-05 21:06:30,702 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 21:06:30,703 INFO L276 IsEmpty]: Start isEmpty. Operand 47132 states and 286024 transitions. [2021-06-05 21:06:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:06:30,825 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:30,825 INFO L554 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 21:06:30,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 21:06:30,826 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 21:06:30,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:30,826 INFO L82 PathProgramCache]: Analyzing trace with hash -446115127, now seen corresponding path program 4 times [2021-06-05 21:06:30,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:30,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834075781] [2021-06-05 21:06:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:31,102 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 21:06:31,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:31,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834075781] [2021-06-05 21:06:31,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834075781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:31,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:31,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:06:31,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125437347] [2021-06-05 21:06:31,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:06:31,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:31,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:06:31,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:31,105 INFO L87 Difference]: Start difference. First operand 47132 states and 286024 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 21:06:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:32,427 INFO L93 Difference]: Finished difference Result 115150 states and 663029 transitions. [2021-06-05 21:06:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:06:32,427 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 21:06:32,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:32,897 INFO L225 Difference]: With dead ends: 115150 [2021-06-05 21:06:32,897 INFO L226 Difference]: Without dead ends: 112789 [2021-06-05 21:06:32,897 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 233.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:06:39,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112789 states. [2021-06-05 21:06:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112789 to 46686. [2021-06-05 21:06:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46686 states, 46685 states have (on average 6.077412445110849) internal successors, (283724), 46685 states have internal predecessors, (283724), 0 states have call successors, (0), 0 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 21:06:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46686 states to 46686 states and 283724 transitions. [2021-06-05 21:06:41,462 INFO L78 Accepts]: Start accepts. Automaton has 46686 states and 283724 transitions. Word has length 37 [2021-06-05 21:06:41,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:41,462 INFO L482 AbstractCegarLoop]: Abstraction has 46686 states and 283724 transitions. [2021-06-05 21:06:41,462 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 21:06:41,462 INFO L276 IsEmpty]: Start isEmpty. Operand 46686 states and 283724 transitions. [2021-06-05 21:06:41,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:06:41,603 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:41,603 INFO L554 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 21:06:41,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 21:06:41,603 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 21:06:41,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:41,604 INFO L82 PathProgramCache]: Analyzing trace with hash -506836313, now seen corresponding path program 5 times [2021-06-05 21:06:41,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:41,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111970078] [2021-06-05 21:06:41,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:41,826 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 21:06:41,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:41,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111970078] [2021-06-05 21:06:41,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111970078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:41,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:41,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:06:41,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951970794] [2021-06-05 21:06:41,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:06:41,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:41,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:06:41,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:41,827 INFO L87 Difference]: Start difference. First operand 46686 states and 283724 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 21:06:43,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:43,121 INFO L93 Difference]: Finished difference Result 114767 states and 661271 transitions. [2021-06-05 21:06:43,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:06:43,122 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 21:06:43,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:43,591 INFO L225 Difference]: With dead ends: 114767 [2021-06-05 21:06:43,591 INFO L226 Difference]: Without dead ends: 112850 [2021-06-05 21:06:43,592 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:06:50,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112850 states. [2021-06-05 21:06:51,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112850 to 47004. [2021-06-05 21:06:51,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47004 states, 47003 states have (on average 6.068229687466758) internal successors, (285225), 47003 states have internal predecessors, (285225), 0 states have call successors, (0), 0 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 21:06:52,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47004 states to 47004 states and 285225 transitions. [2021-06-05 21:06:52,252 INFO L78 Accepts]: Start accepts. Automaton has 47004 states and 285225 transitions. Word has length 37 [2021-06-05 21:06:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:52,253 INFO L482 AbstractCegarLoop]: Abstraction has 47004 states and 285225 transitions. [2021-06-05 21:06:52,253 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 21:06:52,253 INFO L276 IsEmpty]: Start isEmpty. Operand 47004 states and 285225 transitions. [2021-06-05 21:06:52,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:06:52,378 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:52,378 INFO L554 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 21:06:52,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 21:06:52,378 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 21:06:52,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:52,378 INFO L82 PathProgramCache]: Analyzing trace with hash -987738359, now seen corresponding path program 6 times [2021-06-05 21:06:52,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:52,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639138037] [2021-06-05 21:06:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:52,591 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 21:06:52,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:52,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639138037] [2021-06-05 21:06:52,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639138037] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:52,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:52,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:06:52,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753531233] [2021-06-05 21:06:52,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:06:52,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:52,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:06:52,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:52,593 INFO L87 Difference]: Start difference. First operand 47004 states and 285225 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 21:06:53,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:53,861 INFO L93 Difference]: Finished difference Result 114765 states and 660948 transitions. [2021-06-05 21:06:53,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:06:53,861 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 21:06:53,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:54,342 INFO L225 Difference]: With dead ends: 114765 [2021-06-05 21:06:54,342 INFO L226 Difference]: Without dead ends: 112181 [2021-06-05 21:06:54,342 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:07:00,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112181 states. [2021-06-05 21:07:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112181 to 46335. [2021-06-05 21:07:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46335 states, 46334 states have (on average 6.088617429965036) internal successors, (282110), 46334 states have internal predecessors, (282110), 0 states have call successors, (0), 0 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 21:07:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46335 states to 46335 states and 282110 transitions. [2021-06-05 21:07:02,795 INFO L78 Accepts]: Start accepts. Automaton has 46335 states and 282110 transitions. Word has length 37 [2021-06-05 21:07:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:02,795 INFO L482 AbstractCegarLoop]: Abstraction has 46335 states and 282110 transitions. [2021-06-05 21:07:02,795 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 21:07:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 46335 states and 282110 transitions. [2021-06-05 21:07:02,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:07:02,955 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:02,955 INFO L554 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 21:07:02,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 21:07:02,955 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 21:07:02,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:02,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1920879893, now seen corresponding path program 7 times [2021-06-05 21:07:02,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:02,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054157669] [2021-06-05 21:07:02,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:03,191 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 21:07:03,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:03,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054157669] [2021-06-05 21:07:03,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054157669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:03,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:03,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:07:03,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872507579] [2021-06-05 21:07:03,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:07:03,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:03,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:07:03,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:03,192 INFO L87 Difference]: Start difference. First operand 46335 states and 282110 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 21:07:04,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:04,444 INFO L93 Difference]: Finished difference Result 115467 states and 665172 transitions. [2021-06-05 21:07:04,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:07:04,444 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 21:07:04,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:04,904 INFO L225 Difference]: With dead ends: 115467 [2021-06-05 21:07:04,904 INFO L226 Difference]: Without dead ends: 113293 [2021-06-05 21:07:04,904 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 208.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:07:11,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113293 states. [2021-06-05 21:07:12,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113293 to 47196. [2021-06-05 21:07:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47196 states, 47195 states have (on average 6.069583642334993) internal successors, (286454), 47195 states have internal predecessors, (286454), 0 states have call successors, (0), 0 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 21:07:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47196 states to 47196 states and 286454 transitions. [2021-06-05 21:07:13,330 INFO L78 Accepts]: Start accepts. Automaton has 47196 states and 286454 transitions. Word has length 37 [2021-06-05 21:07:13,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:13,330 INFO L482 AbstractCegarLoop]: Abstraction has 47196 states and 286454 transitions. [2021-06-05 21:07:13,330 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 21:07:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 47196 states and 286454 transitions. [2021-06-05 21:07:13,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:07:13,523 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:13,523 INFO L554 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 21:07:13,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 21:07:13,523 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 21:07:13,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:13,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1527290441, now seen corresponding path program 8 times [2021-06-05 21:07:13,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:13,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789680527] [2021-06-05 21:07:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:13,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:13,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789680527] [2021-06-05 21:07:13,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789680527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:13,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:13,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:07:13,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085318002] [2021-06-05 21:07:13,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:07:13,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:13,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:07:13,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:13,753 INFO L87 Difference]: Start difference. First operand 47196 states and 286454 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 21:07:15,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:15,055 INFO L93 Difference]: Finished difference Result 115210 states and 663443 transitions. [2021-06-05 21:07:15,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:07:15,056 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 21:07:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:15,495 INFO L225 Difference]: With dead ends: 115210 [2021-06-05 21:07:15,495 INFO L226 Difference]: Without dead ends: 112718 [2021-06-05 21:07:15,495 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 233.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:07:22,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112718 states. [2021-06-05 21:07:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112718 to 46621. [2021-06-05 21:07:23,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46621 states, 46620 states have (on average 6.081359931359931) internal successors, (283513), 46620 states have internal predecessors, (283513), 0 states have call successors, (0), 0 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 21:07:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46621 states to 46621 states and 283513 transitions. [2021-06-05 21:07:23,616 INFO L78 Accepts]: Start accepts. Automaton has 46621 states and 283513 transitions. Word has length 37 [2021-06-05 21:07:23,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:23,616 INFO L482 AbstractCegarLoop]: Abstraction has 46621 states and 283513 transitions. [2021-06-05 21:07:23,616 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 21:07:23,616 INFO L276 IsEmpty]: Start isEmpty. Operand 46621 states and 283513 transitions. [2021-06-05 21:07:24,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:07:24,187 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:24,188 INFO L554 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 21:07:24,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 21:07:24,188 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 21:07:24,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:24,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1896434411, now seen corresponding path program 9 times [2021-06-05 21:07:24,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:24,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968297151] [2021-06-05 21:07:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:24,454 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 21:07:24,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:24,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968297151] [2021-06-05 21:07:24,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968297151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:24,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:24,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:07:24,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410379655] [2021-06-05 21:07:24,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:07:24,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:24,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:07:24,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:24,455 INFO L87 Difference]: Start difference. First operand 46621 states and 283513 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 21:07:25,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:25,735 INFO L93 Difference]: Finished difference Result 115330 states and 664283 transitions. [2021-06-05 21:07:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:07:25,735 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 21:07:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:26,210 INFO L225 Difference]: With dead ends: 115330 [2021-06-05 21:07:26,211 INFO L226 Difference]: Without dead ends: 113156 [2021-06-05 21:07:26,211 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:07:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113156 states. [2021-06-05 21:07:34,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113156 to 47065. [2021-06-05 21:07:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47065 states, 47064 states have (on average 6.068013768485467) internal successors, (285585), 47064 states have internal predecessors, (285585), 0 states have call successors, (0), 0 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 21:07:34,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47065 states to 47065 states and 285585 transitions. [2021-06-05 21:07:34,273 INFO L78 Accepts]: Start accepts. Automaton has 47065 states and 285585 transitions. Word has length 37 [2021-06-05 21:07:34,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:34,273 INFO L482 AbstractCegarLoop]: Abstraction has 47065 states and 285585 transitions. [2021-06-05 21:07:34,274 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 21:07:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 47065 states and 285585 transitions. [2021-06-05 21:07:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:07:34,758 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:34,758 INFO L554 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 21:07:34,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 21:07:34,758 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 21:07:34,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:34,758 INFO L82 PathProgramCache]: Analyzing trace with hash -861932821, now seen corresponding path program 10 times [2021-06-05 21:07:34,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:34,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146755559] [2021-06-05 21:07:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:35,103 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 21:07:35,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:35,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146755559] [2021-06-05 21:07:35,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146755559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:35,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:35,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:07:35,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288223451] [2021-06-05 21:07:35,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:07:35,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:35,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:07:35,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:35,104 INFO L87 Difference]: Start difference. First operand 47065 states and 285585 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 21:07:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:35,926 INFO L93 Difference]: Finished difference Result 115067 states and 662540 transitions. [2021-06-05 21:07:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:07:35,926 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 21:07:35,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:37,432 INFO L225 Difference]: With dead ends: 115067 [2021-06-05 21:07:37,432 INFO L226 Difference]: Without dead ends: 112712 [2021-06-05 21:07:37,432 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 301.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:07:44,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112712 states. [2021-06-05 21:07:45,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112712 to 46621. [2021-06-05 21:07:45,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46621 states, 46620 states have (on average 6.076598026598027) internal successors, (283291), 46620 states have internal predecessors, (283291), 0 states have call successors, (0), 0 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 21:07:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46621 states to 46621 states and 283291 transitions. [2021-06-05 21:07:45,900 INFO L78 Accepts]: Start accepts. Automaton has 46621 states and 283291 transitions. Word has length 37 [2021-06-05 21:07:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:45,900 INFO L482 AbstractCegarLoop]: Abstraction has 46621 states and 283291 transitions. [2021-06-05 21:07:45,900 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 21:07:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 46621 states and 283291 transitions. [2021-06-05 21:07:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:07:46,007 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:46,008 INFO L554 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 21:07:46,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 21:07:46,008 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 21:07:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:46,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1039686345, now seen corresponding path program 11 times [2021-06-05 21:07:46,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:46,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225446202] [2021-06-05 21:07:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:46,252 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 21:07:46,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:46,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225446202] [2021-06-05 21:07:46,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225446202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:46,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:46,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:07:46,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801276540] [2021-06-05 21:07:46,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:07:46,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:46,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:07:46,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:46,255 INFO L87 Difference]: Start difference. First operand 46621 states and 283291 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 21:07:47,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:47,489 INFO L93 Difference]: Finished difference Result 114688 states and 660793 transitions. [2021-06-05 21:07:47,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:07:47,489 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 21:07:47,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:47,935 INFO L225 Difference]: With dead ends: 114688 [2021-06-05 21:07:47,935 INFO L226 Difference]: Without dead ends: 112771 [2021-06-05 21:07:47,935 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:07:54,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112771 states. [2021-06-05 21:07:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112771 to 46937. [2021-06-05 21:07:56,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46937 states, 46936 states have (on average 6.067560081813533) internal successors, (284787), 46936 states have internal predecessors, (284787), 0 states have call successors, (0), 0 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 21:07:56,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46937 states to 46937 states and 284787 transitions. [2021-06-05 21:07:56,413 INFO L78 Accepts]: Start accepts. Automaton has 46937 states and 284787 transitions. Word has length 37 [2021-06-05 21:07:56,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:56,413 INFO L482 AbstractCegarLoop]: Abstraction has 46937 states and 284787 transitions. [2021-06-05 21:07:56,413 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 21:07:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand 46937 states and 284787 transitions. [2021-06-05 21:07:56,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:07:56,523 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:56,523 INFO L554 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 21:07:56,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 21:07:56,523 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 21:07:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:56,523 INFO L82 PathProgramCache]: Analyzing trace with hash -134273365, now seen corresponding path program 12 times [2021-06-05 21:07:56,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:56,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613778942] [2021-06-05 21:07:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:56,721 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 21:07:56,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:56,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613778942] [2021-06-05 21:07:56,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613778942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:56,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:56,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:07:56,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453769216] [2021-06-05 21:07:56,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:07:56,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:56,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:07:56,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:56,723 INFO L87 Difference]: Start difference. First operand 46937 states and 284787 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 21:07:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:58,022 INFO L93 Difference]: Finished difference Result 114682 states and 660460 transitions. [2021-06-05 21:07:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:07:58,023 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 21:07:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:58,474 INFO L225 Difference]: With dead ends: 114682 [2021-06-05 21:07:58,474 INFO L226 Difference]: Without dead ends: 112169 [2021-06-05 21:07:58,474 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:08:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112169 states. [2021-06-05 21:08:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112169 to 46335. [2021-06-05 21:08:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46335 states, 46334 states have (on average 6.085531143436785) internal successors, (281967), 46334 states have internal predecessors, (281967), 0 states have call successors, (0), 0 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 21:08:06,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46335 states to 46335 states and 281967 transitions. [2021-06-05 21:08:06,929 INFO L78 Accepts]: Start accepts. Automaton has 46335 states and 281967 transitions. Word has length 37 [2021-06-05 21:08:06,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:06,929 INFO L482 AbstractCegarLoop]: Abstraction has 46335 states and 281967 transitions. [2021-06-05 21:08:06,929 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 21:08:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 46335 states and 281967 transitions. [2021-06-05 21:08:07,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:08:07,041 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:07,041 INFO L554 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 21:08:07,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 21:08:07,041 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 21:08:07,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:07,041 INFO L82 PathProgramCache]: Analyzing trace with hash -622050487, now seen corresponding path program 13 times [2021-06-05 21:08:07,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:07,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693236469] [2021-06-05 21:08:07,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:07,244 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 21:08:07,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:07,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693236469] [2021-06-05 21:08:07,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693236469] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:07,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:07,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:08:07,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933514237] [2021-06-05 21:08:07,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:08:07,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:07,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:08:07,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:07,245 INFO L87 Difference]: Start difference. First operand 46335 states and 281967 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 21:08:08,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:08,399 INFO L93 Difference]: Finished difference Result 115141 states and 663541 transitions. [2021-06-05 21:08:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:08:08,399 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 21:08:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:08,848 INFO L225 Difference]: With dead ends: 115141 [2021-06-05 21:08:08,848 INFO L226 Difference]: Without dead ends: 112967 [2021-06-05 21:08:08,848 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 196.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:08:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112967 states. [2021-06-05 21:08:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112967 to 47003. [2021-06-05 21:08:16,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47003 states, 47002 states have (on average 6.072358623037317) internal successors, (285413), 47002 states have internal predecessors, (285413), 0 states have call successors, (0), 0 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 21:08:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47003 states to 47003 states and 285413 transitions. [2021-06-05 21:08:17,112 INFO L78 Accepts]: Start accepts. Automaton has 47003 states and 285413 transitions. Word has length 37 [2021-06-05 21:08:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:17,112 INFO L482 AbstractCegarLoop]: Abstraction has 47003 states and 285413 transitions. [2021-06-05 21:08:17,112 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 21:08:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 47003 states and 285413 transitions. [2021-06-05 21:08:17,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:08:17,220 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:17,220 INFO L554 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 21:08:17,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 21:08:17,220 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 21:08:17,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:17,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1418077367, now seen corresponding path program 14 times [2021-06-05 21:08:17,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:17,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953885566] [2021-06-05 21:08:17,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:17,420 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 21:08:17,421 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:17,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953885566] [2021-06-05 21:08:17,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953885566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:17,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:17,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:08:17,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677957003] [2021-06-05 21:08:17,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:08:17,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:17,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:08:17,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:17,422 INFO L87 Difference]: Start difference. First operand 47003 states and 285413 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 21:08:18,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:18,628 INFO L93 Difference]: Finished difference Result 114882 states and 661808 transitions. [2021-06-05 21:08:18,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:08:18,628 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 21:08:18,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:19,074 INFO L225 Difference]: With dead ends: 114882 [2021-06-05 21:08:19,075 INFO L226 Difference]: Without dead ends: 112521 [2021-06-05 21:08:19,075 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:08:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112521 states. [2021-06-05 21:08:27,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112521 to 46557. [2021-06-05 21:08:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46557 states, 46556 states have (on average 6.081149583297534) internal successors, (283114), 46556 states have internal predecessors, (283114), 0 states have call successors, (0), 0 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 21:08:27,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46557 states to 46557 states and 283114 transitions. [2021-06-05 21:08:27,395 INFO L78 Accepts]: Start accepts. Automaton has 46557 states and 283114 transitions. Word has length 37 [2021-06-05 21:08:27,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:27,395 INFO L482 AbstractCegarLoop]: Abstraction has 46557 states and 283114 transitions. [2021-06-05 21:08:27,395 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 21:08:27,395 INFO L276 IsEmpty]: Start isEmpty. Operand 46557 states and 283114 transitions. [2021-06-05 21:08:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:08:27,506 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:27,506 INFO L554 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 21:08:27,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 21:08:27,507 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 21:08:27,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:27,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1087551275, now seen corresponding path program 15 times [2021-06-05 21:08:27,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:27,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447875063] [2021-06-05 21:08:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:27,710 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 21:08:27,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:27,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447875063] [2021-06-05 21:08:27,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447875063] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:27,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:27,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:08:27,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137295553] [2021-06-05 21:08:27,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:08:27,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:27,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:08:27,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:27,712 INFO L87 Difference]: Start difference. First operand 46557 states and 283114 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 21:08:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:28,872 INFO L93 Difference]: Finished difference Result 115135 states and 663300 transitions. [2021-06-05 21:08:28,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:08:28,872 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 21:08:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:29,327 INFO L225 Difference]: With dead ends: 115135 [2021-06-05 21:08:29,327 INFO L226 Difference]: Without dead ends: 112961 [2021-06-05 21:08:29,327 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 204.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:08:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112961 states. [2021-06-05 21:08:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112961 to 47001. [2021-06-05 21:08:37,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47001 states, 47000 states have (on average 6.067787234042553) internal successors, (285186), 47000 states have internal predecessors, (285186), 0 states have call successors, (0), 0 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 21:08:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47001 states to 47001 states and 285186 transitions. [2021-06-05 21:08:37,589 INFO L78 Accepts]: Start accepts. Automaton has 47001 states and 285186 transitions. Word has length 37 [2021-06-05 21:08:37,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:37,589 INFO L482 AbstractCegarLoop]: Abstraction has 47001 states and 285186 transitions. [2021-06-05 21:08:37,589 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 21:08:37,589 INFO L276 IsEmpty]: Start isEmpty. Operand 47001 states and 285186 transitions. [2021-06-05 21:08:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:08:37,697 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:37,697 INFO L554 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 21:08:37,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 21:08:37,697 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 21:08:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:37,697 INFO L82 PathProgramCache]: Analyzing trace with hash 596114249, now seen corresponding path program 16 times [2021-06-05 21:08:37,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:37,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515601039] [2021-06-05 21:08:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:37,919 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 21:08:37,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:37,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515601039] [2021-06-05 21:08:37,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515601039] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:37,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:37,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:08:37,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227245722] [2021-06-05 21:08:37,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:08:37,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:37,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:08:37,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:37,921 INFO L87 Difference]: Start difference. First operand 47001 states and 285186 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 21:08:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:39,109 INFO L93 Difference]: Finished difference Result 114872 states and 661557 transitions. [2021-06-05 21:08:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:08:39,109 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 21:08:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:39,570 INFO L225 Difference]: With dead ends: 114872 [2021-06-05 21:08:39,570 INFO L226 Difference]: Without dead ends: 112517 [2021-06-05 21:08:39,570 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:08:46,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112517 states. [2021-06-05 21:08:47,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112517 to 46557. [2021-06-05 21:08:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46557 states, 46556 states have (on average 6.076381132399691) internal successors, (282892), 46556 states have internal predecessors, (282892), 0 states have call successors, (0), 0 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 21:08:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46557 states to 46557 states and 282892 transitions. [2021-06-05 21:08:47,924 INFO L78 Accepts]: Start accepts. Automaton has 46557 states and 282892 transitions. Word has length 37 [2021-06-05 21:08:47,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:47,924 INFO L482 AbstractCegarLoop]: Abstraction has 46557 states and 282892 transitions. [2021-06-05 21:08:47,924 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 21:08:47,924 INFO L276 IsEmpty]: Start isEmpty. Operand 46557 states and 282892 transitions. [2021-06-05 21:08:48,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:08:48,034 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:48,034 INFO L554 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 21:08:48,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 21:08:48,034 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 21:08:48,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:48,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2080801609, now seen corresponding path program 17 times [2021-06-05 21:08:48,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:48,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420493167] [2021-06-05 21:08:48,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:48,220 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 21:08:48,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:48,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420493167] [2021-06-05 21:08:48,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420493167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:48,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:48,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:08:48,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259653499] [2021-06-05 21:08:48,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:08:48,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:48,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:08:48,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:48,221 INFO L87 Difference]: Start difference. First operand 46557 states and 282892 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 21:08:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:49,451 INFO L93 Difference]: Finished difference Result 114489 states and 659800 transitions. [2021-06-05 21:08:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:08:49,452 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 21:08:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:49,942 INFO L225 Difference]: With dead ends: 114489 [2021-06-05 21:08:49,942 INFO L226 Difference]: Without dead ends: 112574 [2021-06-05 21:08:49,942 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 218.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:08:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112574 states. [2021-06-05 21:08:58,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112574 to 46873. [2021-06-05 21:08:58,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46873 states, 46872 states have (on average 6.067332309267793) internal successors, (284388), 46872 states have internal predecessors, (284388), 0 states have call successors, (0), 0 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 21:08:58,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46873 states to 46873 states and 284388 transitions. [2021-06-05 21:08:58,606 INFO L78 Accepts]: Start accepts. Automaton has 46873 states and 284388 transitions. Word has length 37 [2021-06-05 21:08:58,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:58,606 INFO L482 AbstractCegarLoop]: Abstraction has 46873 states and 284388 transitions. [2021-06-05 21:08:58,606 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 21:08:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 46873 states and 284388 transitions. [2021-06-05 21:08:58,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:08:58,719 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:58,719 INFO L554 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 21:08:58,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 21:08:58,719 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 21:08:58,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:58,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1599899563, now seen corresponding path program 18 times [2021-06-05 21:08:58,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:58,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226466047] [2021-06-05 21:08:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:58,920 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 21:08:58,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:58,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226466047] [2021-06-05 21:08:58,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226466047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:58,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:58,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:08:58,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943646290] [2021-06-05 21:08:58,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:08:58,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:58,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:08:58,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:58,921 INFO L87 Difference]: Start difference. First operand 46873 states and 284388 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 21:09:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:00,177 INFO L93 Difference]: Finished difference Result 114485 states and 659472 transitions. [2021-06-05 21:09:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:09:00,177 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 21:09:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:00,626 INFO L225 Difference]: With dead ends: 114485 [2021-06-05 21:09:00,626 INFO L226 Difference]: Without dead ends: 112036 [2021-06-05 21:09:00,626 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 218.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:09:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112036 states. [2021-06-05 21:09:08,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112036 to 46335. [2021-06-05 21:09:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46335 states, 46334 states have (on average 6.083135494453317) internal successors, (281856), 46334 states have internal predecessors, (281856), 0 states have call successors, (0), 0 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 21:09:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46335 states to 46335 states and 281856 transitions. [2021-06-05 21:09:08,974 INFO L78 Accepts]: Start accepts. Automaton has 46335 states and 281856 transitions. Word has length 37 [2021-06-05 21:09:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:08,974 INFO L482 AbstractCegarLoop]: Abstraction has 46335 states and 281856 transitions. [2021-06-05 21:09:08,974 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 21:09:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 46335 states and 281856 transitions. [2021-06-05 21:09:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:09:09,088 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:09,088 INFO L554 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 21:09:09,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 21:09:09,088 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 21:09:09,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:09,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1843092391, now seen corresponding path program 19 times [2021-06-05 21:09:09,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:09,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87378110] [2021-06-05 21:09:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:09,298 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 21:09:09,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:09,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87378110] [2021-06-05 21:09:09,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87378110] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:09,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:09,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:09:09,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233910734] [2021-06-05 21:09:09,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:09:09,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:09,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:09:09,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:09,300 INFO L87 Difference]: Start difference. First operand 46335 states and 281856 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 21:09:10,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:10,547 INFO L93 Difference]: Finished difference Result 113922 states and 657088 transitions. [2021-06-05 21:09:10,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:09:10,548 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 21:09:10,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:11,009 INFO L225 Difference]: With dead ends: 113922 [2021-06-05 21:09:11,009 INFO L226 Difference]: Without dead ends: 112005 [2021-06-05 21:09:11,009 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 223.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:09:17,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112005 states. [2021-06-05 21:09:18,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112005 to 46811. [2021-06-05 21:09:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46811 states, 46810 states have (on average 6.074385814996796) internal successors, (284342), 46810 states have internal predecessors, (284342), 0 states have call successors, (0), 0 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 21:09:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46811 states to 46811 states and 284342 transitions. [2021-06-05 21:09:19,451 INFO L78 Accepts]: Start accepts. Automaton has 46811 states and 284342 transitions. Word has length 37 [2021-06-05 21:09:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:19,451 INFO L482 AbstractCegarLoop]: Abstraction has 46811 states and 284342 transitions. [2021-06-05 21:09:19,451 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 21:09:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 46811 states and 284342 transitions. [2021-06-05 21:09:19,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:09:19,570 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:19,570 INFO L554 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 21:09:19,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 21:09:19,570 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 21:09:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:19,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1362190345, now seen corresponding path program 20 times [2021-06-05 21:09:19,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:19,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992831386] [2021-06-05 21:09:19,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:19,770 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 21:09:19,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:19,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992831386] [2021-06-05 21:09:19,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992831386] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:19,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:19,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:09:19,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635847444] [2021-06-05 21:09:19,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:09:19,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:19,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:09:19,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:19,771 INFO L87 Difference]: Start difference. First operand 46811 states and 284342 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 21:09:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:21,019 INFO L93 Difference]: Finished difference Result 113920 states and 656765 transitions. [2021-06-05 21:09:21,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:09:21,023 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 21:09:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:21,481 INFO L225 Difference]: With dead ends: 113920 [2021-06-05 21:09:21,482 INFO L226 Difference]: Without dead ends: 111687 [2021-06-05 21:09:21,482 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 216.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:09:27,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111687 states. [2021-06-05 21:09:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111687 to 46493. [2021-06-05 21:09:29,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46493 states, 46492 states have (on average 6.080250365654306) internal successors, (282683), 46492 states have internal predecessors, (282683), 0 states have call successors, (0), 0 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 21:09:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46493 states to 46493 states and 282683 transitions. [2021-06-05 21:09:30,024 INFO L78 Accepts]: Start accepts. Automaton has 46493 states and 282683 transitions. Word has length 37 [2021-06-05 21:09:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:30,024 INFO L482 AbstractCegarLoop]: Abstraction has 46493 states and 282683 transitions. [2021-06-05 21:09:30,024 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 21:09:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 46493 states and 282683 transitions. [2021-06-05 21:09:30,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:09:30,208 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:30,208 INFO L554 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 21:09:30,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 21:09:30,208 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 21:09:30,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:30,209 INFO L82 PathProgramCache]: Analyzing trace with hash -742273143, now seen corresponding path program 21 times [2021-06-05 21:09:30,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:30,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612345470] [2021-06-05 21:09:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:30,404 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 21:09:30,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:30,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612345470] [2021-06-05 21:09:30,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612345470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:30,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:30,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:09:30,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134209814] [2021-06-05 21:09:30,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:09:30,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:30,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:09:30,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:30,405 INFO L87 Difference]: Start difference. First operand 46493 states and 282683 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 21:09:31,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:31,644 INFO L93 Difference]: Finished difference Result 113916 states and 656911 transitions. [2021-06-05 21:09:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:09:31,645 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 21:09:31,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:32,083 INFO L225 Difference]: With dead ends: 113916 [2021-06-05 21:09:32,083 INFO L226 Difference]: Without dead ends: 111999 [2021-06-05 21:09:32,083 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:09:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111999 states. [2021-06-05 21:09:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111999 to 46809. [2021-06-05 21:09:39,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46809 states, 46808 states have (on average 6.071163049051444) internal successors, (284179), 46808 states have internal predecessors, (284179), 0 states have call successors, (0), 0 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 21:09:40,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46809 states to 46809 states and 284179 transitions. [2021-06-05 21:09:40,506 INFO L78 Accepts]: Start accepts. Automaton has 46809 states and 284179 transitions. Word has length 37 [2021-06-05 21:09:40,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:40,507 INFO L482 AbstractCegarLoop]: Abstraction has 46809 states and 284179 transitions. [2021-06-05 21:09:40,507 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 21:09:40,507 INFO L276 IsEmpty]: Start isEmpty. Operand 46809 states and 284179 transitions. [2021-06-05 21:09:40,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:09:40,684 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:40,684 INFO L554 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 21:09:40,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 21:09:40,684 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 21:09:40,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:40,685 INFO L82 PathProgramCache]: Analyzing trace with hash 350697353, now seen corresponding path program 22 times [2021-06-05 21:09:40,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:40,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935647116] [2021-06-05 21:09:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:40,907 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 21:09:40,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:40,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935647116] [2021-06-05 21:09:40,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935647116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:40,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:40,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:09:40,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145488238] [2021-06-05 21:09:40,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:09:40,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:40,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:09:40,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:40,908 INFO L87 Difference]: Start difference. First operand 46809 states and 284179 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 21:09:42,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:42,122 INFO L93 Difference]: Finished difference Result 113910 states and 656578 transitions. [2021-06-05 21:09:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:09:42,122 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 21:09:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:42,552 INFO L225 Difference]: With dead ends: 113910 [2021-06-05 21:09:42,553 INFO L226 Difference]: Without dead ends: 111683 [2021-06-05 21:09:42,553 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 243.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:09:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111683 states. [2021-06-05 21:09:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111683 to 46493. [2021-06-05 21:09:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46493 states, 46492 states have (on average 6.076851931515099) internal successors, (282525), 46492 states have internal predecessors, (282525), 0 states have call successors, (0), 0 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 21:09:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46493 states to 46493 states and 282525 transitions. [2021-06-05 21:09:50,650 INFO L78 Accepts]: Start accepts. Automaton has 46493 states and 282525 transitions. Word has length 37 [2021-06-05 21:09:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:50,650 INFO L482 AbstractCegarLoop]: Abstraction has 46493 states and 282525 transitions. [2021-06-05 21:09:50,651 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 21:09:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 46493 states and 282525 transitions. [2021-06-05 21:09:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:09:50,760 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:50,760 INFO L554 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 21:09:50,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 21:09:50,761 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 21:09:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:50,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1531659413, now seen corresponding path program 23 times [2021-06-05 21:09:50,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:50,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835185421] [2021-06-05 21:09:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:51,376 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 21:09:51,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:51,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835185421] [2021-06-05 21:09:51,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835185421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:51,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:51,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:09:51,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502328941] [2021-06-05 21:09:51,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:09:51,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:51,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:09:51,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:51,377 INFO L87 Difference]: Start difference. First operand 46493 states and 282525 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 21:09:52,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:52,145 INFO L93 Difference]: Finished difference Result 113912 states and 656743 transitions. [2021-06-05 21:09:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:09:52,146 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 21:09:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:53,081 INFO L225 Difference]: With dead ends: 113912 [2021-06-05 21:09:53,082 INFO L226 Difference]: Without dead ends: 111997 [2021-06-05 21:09:53,082 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 264.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:09:59,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111997 states. [2021-06-05 21:10:01,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111997 to 46809. [2021-06-05 21:10:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46809 states, 46808 states have (on average 6.067787557682448) internal successors, (284021), 46808 states have internal predecessors, (284021), 0 states have call successors, (0), 0 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 21:10:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46809 states to 46809 states and 284021 transitions. [2021-06-05 21:10:01,413 INFO L78 Accepts]: Start accepts. Automaton has 46809 states and 284021 transitions. Word has length 37 [2021-06-05 21:10:01,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:01,414 INFO L482 AbstractCegarLoop]: Abstraction has 46809 states and 284021 transitions. [2021-06-05 21:10:01,414 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 21:10:01,414 INFO L276 IsEmpty]: Start isEmpty. Operand 46809 states and 284021 transitions. [2021-06-05 21:10:01,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:10:01,515 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:01,515 INFO L554 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 21:10:01,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 21:10:01,515 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 21:10:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:01,516 INFO L82 PathProgramCache]: Analyzing trace with hash 740246345, now seen corresponding path program 24 times [2021-06-05 21:10:01,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:01,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310339139] [2021-06-05 21:10:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:02,083 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-06-05 21:10:02,083 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 21:10:02,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:02,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310339139] [2021-06-05 21:10:02,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310339139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:02,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:02,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:10:02,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669630433] [2021-06-05 21:10:02,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:10:02,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:02,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:10:02,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:02,084 INFO L87 Difference]: Start difference. First operand 46809 states and 284021 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 21:10:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:02,956 INFO L93 Difference]: Finished difference Result 113908 states and 656415 transitions. [2021-06-05 21:10:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:10:02,956 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 21:10:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:04,119 INFO L225 Difference]: With dead ends: 113908 [2021-06-05 21:10:04,119 INFO L226 Difference]: Without dead ends: 111316 [2021-06-05 21:10:04,120 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 607.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:10:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111316 states. [2021-06-05 21:10:12,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111316 to 46128. [2021-06-05 21:10:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46128 states, 46127 states have (on average 6.09209356775858) internal successors, (281010), 46127 states have internal predecessors, (281010), 0 states have call successors, (0), 0 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 21:10:12,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46128 states to 46128 states and 281010 transitions. [2021-06-05 21:10:12,626 INFO L78 Accepts]: Start accepts. Automaton has 46128 states and 281010 transitions. Word has length 37 [2021-06-05 21:10:12,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:12,626 INFO L482 AbstractCegarLoop]: Abstraction has 46128 states and 281010 transitions. [2021-06-05 21:10:12,626 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 21:10:12,626 INFO L276 IsEmpty]: Start isEmpty. Operand 46128 states and 281010 transitions. [2021-06-05 21:10:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:10:12,731 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:12,731 INFO L554 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 21:10:12,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 21:10:12,731 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 21:10:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:12,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2014534581, now seen corresponding path program 25 times [2021-06-05 21:10:12,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:12,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347548] [2021-06-05 21:10:12,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:12,929 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 21:10:12,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:12,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347548] [2021-06-05 21:10:12,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:12,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:12,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:10:12,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178718814] [2021-06-05 21:10:12,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:10:12,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:12,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:10:12,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:12,930 INFO L87 Difference]: Start difference. First operand 46128 states and 281010 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 21:10:14,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:14,205 INFO L93 Difference]: Finished difference Result 115481 states and 665310 transitions. [2021-06-05 21:10:14,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:10:14,209 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 21:10:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:14,674 INFO L225 Difference]: With dead ends: 115481 [2021-06-05 21:10:14,674 INFO L226 Difference]: Without dead ends: 113307 [2021-06-05 21:10:14,674 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 208.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:10:21,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113307 states. [2021-06-05 21:10:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113307 to 47228. [2021-06-05 21:10:22,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47228 states, 47227 states have (on average 6.070023503504351) internal successors, (286669), 47227 states have internal predecessors, (286669), 0 states have call successors, (0), 0 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 21:10:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47228 states to 47228 states and 286669 transitions. [2021-06-05 21:10:22,990 INFO L78 Accepts]: Start accepts. Automaton has 47228 states and 286669 transitions. Word has length 37 [2021-06-05 21:10:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:22,990 INFO L482 AbstractCegarLoop]: Abstraction has 47228 states and 286669 transitions. [2021-06-05 21:10:22,991 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 21:10:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 47228 states and 286669 transitions. [2021-06-05 21:10:23,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:10:23,090 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:23,090 INFO L554 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 21:10:23,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 21:10:23,090 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 21:10:23,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:23,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1433635753, now seen corresponding path program 26 times [2021-06-05 21:10:23,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:23,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035225263] [2021-06-05 21:10:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:23,310 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 21:10:23,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:23,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035225263] [2021-06-05 21:10:23,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035225263] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:23,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:23,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:10:23,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51534576] [2021-06-05 21:10:23,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:10:23,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:23,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:10:23,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:23,312 INFO L87 Difference]: Start difference. First operand 47228 states and 286669 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 21:10:24,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:24,444 INFO L93 Difference]: Finished difference Result 115224 states and 663581 transitions. [2021-06-05 21:10:24,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:10:24,444 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 21:10:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:24,885 INFO L225 Difference]: With dead ends: 115224 [2021-06-05 21:10:24,885 INFO L226 Difference]: Without dead ends: 112732 [2021-06-05 21:10:24,885 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:10:31,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112732 states. [2021-06-05 21:10:32,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112732 to 46653. [2021-06-05 21:10:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46653 states, 46652 states have (on average 6.081775700934579) internal successors, (283727), 46652 states have internal predecessors, (283727), 0 states have call successors, (0), 0 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 21:10:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46653 states to 46653 states and 283727 transitions. [2021-06-05 21:10:33,064 INFO L78 Accepts]: Start accepts. Automaton has 46653 states and 283727 transitions. Word has length 37 [2021-06-05 21:10:33,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:33,064 INFO L482 AbstractCegarLoop]: Abstraction has 46653 states and 283727 transitions. [2021-06-05 21:10:33,064 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 21:10:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 46653 states and 283727 transitions. [2021-06-05 21:10:33,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:10:33,169 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:33,169 INFO L554 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 21:10:33,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 21:10:33,169 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 21:10:33,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:33,170 INFO L82 PathProgramCache]: Analyzing trace with hash 257371177, now seen corresponding path program 27 times [2021-06-05 21:10:33,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:33,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622075989] [2021-06-05 21:10:33,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:10:33,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:33,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622075989] [2021-06-05 21:10:33,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622075989] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:33,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:33,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:10:33,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270680100] [2021-06-05 21:10:33,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:10:33,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:33,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:10:33,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:33,403 INFO L87 Difference]: Start difference. First operand 46653 states and 283727 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 21:10:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:34,501 INFO L93 Difference]: Finished difference Result 115350 states and 664439 transitions. [2021-06-05 21:10:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:10:34,502 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 21:10:34,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:34,965 INFO L225 Difference]: With dead ends: 115350 [2021-06-05 21:10:34,965 INFO L226 Difference]: Without dead ends: 113176 [2021-06-05 21:10:34,965 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:10:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113176 states. [2021-06-05 21:10:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113176 to 47099. [2021-06-05 21:10:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47099 states, 47098 states have (on average 6.0682831542740665) internal successors, (285804), 47098 states have internal predecessors, (285804), 0 states have call successors, (0), 0 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 21:10:43,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47099 states to 47099 states and 285804 transitions. [2021-06-05 21:10:43,300 INFO L78 Accepts]: Start accepts. Automaton has 47099 states and 285804 transitions. Word has length 37 [2021-06-05 21:10:43,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:43,300 INFO L482 AbstractCegarLoop]: Abstraction has 47099 states and 285804 transitions. [2021-06-05 21:10:43,300 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 21:10:43,301 INFO L276 IsEmpty]: Start isEmpty. Operand 47099 states and 285804 transitions. [2021-06-05 21:10:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:10:43,405 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:43,405 INFO L554 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 21:10:43,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 21:10:43,405 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 21:10:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:43,406 INFO L82 PathProgramCache]: Analyzing trace with hash -538655703, now seen corresponding path program 28 times [2021-06-05 21:10:43,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:43,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210666361] [2021-06-05 21:10:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:43,611 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 21:10:43,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:43,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210666361] [2021-06-05 21:10:43,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210666361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:43,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:43,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:10:43,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269793887] [2021-06-05 21:10:43,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:10:43,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:43,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:10:43,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:43,612 INFO L87 Difference]: Start difference. First operand 47099 states and 285804 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 21:10:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:44,780 INFO L93 Difference]: Finished difference Result 115091 states and 662706 transitions. [2021-06-05 21:10:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:10:44,780 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 21:10:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:45,225 INFO L225 Difference]: With dead ends: 115091 [2021-06-05 21:10:45,225 INFO L226 Difference]: Without dead ends: 112730 [2021-06-05 21:10:45,225 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 215.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:10:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112730 states. [2021-06-05 21:10:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112730 to 46653. [2021-06-05 21:10:53,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46653 states, 46652 states have (on average 6.076995627197119) internal successors, (283504), 46652 states have internal predecessors, (283504), 0 states have call successors, (0), 0 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 21:10:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46653 states to 46653 states and 283504 transitions. [2021-06-05 21:10:53,454 INFO L78 Accepts]: Start accepts. Automaton has 46653 states and 283504 transitions. Word has length 37 [2021-06-05 21:10:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:53,454 INFO L482 AbstractCegarLoop]: Abstraction has 46653 states and 283504 transitions. [2021-06-05 21:10:53,454 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 21:10:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 46653 states and 283504 transitions. [2021-06-05 21:10:53,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:10:53,555 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:53,555 INFO L554 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 21:10:53,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 21:10:53,555 INFO L430 AbstractCegarLoop]: === Iteration 36 === [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 21:10:53,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:53,556 INFO L82 PathProgramCache]: Analyzing trace with hash -599376889, now seen corresponding path program 29 times [2021-06-05 21:10:53,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:53,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970729940] [2021-06-05 21:10:53,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:53,745 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 21:10:53,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:53,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970729940] [2021-06-05 21:10:53,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970729940] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:53,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:53,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:10:53,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422882887] [2021-06-05 21:10:53,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:10:53,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:53,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:10:53,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:53,746 INFO L87 Difference]: Start difference. First operand 46653 states and 283504 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 21:10:54,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:54,896 INFO L93 Difference]: Finished difference Result 114708 states and 660948 transitions. [2021-06-05 21:10:54,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:10:54,896 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 21:10:54,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:55,355 INFO L225 Difference]: With dead ends: 114708 [2021-06-05 21:10:55,355 INFO L226 Difference]: Without dead ends: 112791 [2021-06-05 21:10:55,356 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:11:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112791 states. [2021-06-05 21:11:03,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112791 to 46971. [2021-06-05 21:11:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46971 states, 46970 states have (on average 6.067809239940387) internal successors, (285005), 46970 states have internal predecessors, (285005), 0 states have call successors, (0), 0 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 21:11:03,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46971 states to 46971 states and 285005 transitions. [2021-06-05 21:11:03,636 INFO L78 Accepts]: Start accepts. Automaton has 46971 states and 285005 transitions. Word has length 37 [2021-06-05 21:11:03,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:03,636 INFO L482 AbstractCegarLoop]: Abstraction has 46971 states and 285005 transitions. [2021-06-05 21:11:03,636 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 21:11:03,636 INFO L276 IsEmpty]: Start isEmpty. Operand 46971 states and 285005 transitions. [2021-06-05 21:11:03,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:11:03,730 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:03,730 INFO L554 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 21:11:03,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 21:11:03,731 INFO L430 AbstractCegarLoop]: === Iteration 37 === [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 21:11:03,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:03,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1080278935, now seen corresponding path program 30 times [2021-06-05 21:11:03,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:03,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594306527] [2021-06-05 21:11:03,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:03,914 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 21:11:03,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:03,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594306527] [2021-06-05 21:11:03,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594306527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:03,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:03,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:11:03,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31311202] [2021-06-05 21:11:03,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:11:03,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:03,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:11:03,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:03,915 INFO L87 Difference]: Start difference. First operand 46971 states and 285005 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 21:11:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:05,086 INFO L93 Difference]: Finished difference Result 114706 states and 660625 transitions. [2021-06-05 21:11:05,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:11:05,086 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 21:11:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:05,544 INFO L225 Difference]: With dead ends: 114706 [2021-06-05 21:11:05,544 INFO L226 Difference]: Without dead ends: 112122 [2021-06-05 21:11:05,544 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:11:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112122 states. [2021-06-05 21:11:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112122 to 46302. [2021-06-05 21:11:13,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46302 states, 46301 states have (on average 6.088227036133129) internal successors, (281891), 46301 states have internal predecessors, (281891), 0 states have call successors, (0), 0 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 21:11:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46302 states to 46302 states and 281891 transitions. [2021-06-05 21:11:13,728 INFO L78 Accepts]: Start accepts. Automaton has 46302 states and 281891 transitions. Word has length 37 [2021-06-05 21:11:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:13,728 INFO L482 AbstractCegarLoop]: Abstraction has 46302 states and 281891 transitions. [2021-06-05 21:11:13,728 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 21:11:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 46302 states and 281891 transitions. [2021-06-05 21:11:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:11:13,832 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:13,832 INFO L554 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 21:11:13,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 21:11:13,833 INFO L430 AbstractCegarLoop]: === Iteration 38 === [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 21:11:13,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:13,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1372124695, now seen corresponding path program 31 times [2021-06-05 21:11:13,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:13,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313361904] [2021-06-05 21:11:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:14,050 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 21:11:14,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:14,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313361904] [2021-06-05 21:11:14,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313361904] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:14,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:14,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:11:14,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750704632] [2021-06-05 21:11:14,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:11:14,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:14,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:11:14,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:14,051 INFO L87 Difference]: Start difference. First operand 46302 states and 281891 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 21:11:15,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:15,326 INFO L93 Difference]: Finished difference Result 115390 states and 664781 transitions. [2021-06-05 21:11:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:11:15,326 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 21:11:15,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:16,100 INFO L225 Difference]: With dead ends: 115390 [2021-06-05 21:11:16,100 INFO L226 Difference]: Without dead ends: 113216 [2021-06-05 21:11:16,101 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:11:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113216 states. [2021-06-05 21:11:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113216 to 47161. [2021-06-05 21:11:24,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47161 states, 47160 states have (on average 6.069253604749788) internal successors, (286226), 47160 states have internal predecessors, (286226), 0 states have call successors, (0), 0 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 21:11:24,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47161 states to 47161 states and 286226 transitions. [2021-06-05 21:11:24,287 INFO L78 Accepts]: Start accepts. Automaton has 47161 states and 286226 transitions. Word has length 37 [2021-06-05 21:11:24,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:24,287 INFO L482 AbstractCegarLoop]: Abstraction has 47161 states and 286226 transitions. [2021-06-05 21:11:24,287 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 21:11:24,287 INFO L276 IsEmpty]: Start isEmpty. Operand 47161 states and 286226 transitions. [2021-06-05 21:11:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:11:24,768 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:24,768 INFO L554 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 21:11:24,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 21:11:24,768 INFO L430 AbstractCegarLoop]: === Iteration 39 === [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 21:11:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:24,769 INFO L82 PathProgramCache]: Analyzing trace with hash 2076045639, now seen corresponding path program 32 times [2021-06-05 21:11:24,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:24,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341027024] [2021-06-05 21:11:24,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:25,031 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 21:11:25,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:25,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341027024] [2021-06-05 21:11:25,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341027024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:25,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:25,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:11:25,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26958862] [2021-06-05 21:11:25,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:11:25,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:25,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:11:25,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:25,032 INFO L87 Difference]: Start difference. First operand 47161 states and 286226 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 21:11:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:26,311 INFO L93 Difference]: Finished difference Result 115133 states and 663052 transitions. [2021-06-05 21:11:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:11:26,311 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 21:11:26,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:26,756 INFO L225 Difference]: With dead ends: 115133 [2021-06-05 21:11:26,756 INFO L226 Difference]: Without dead ends: 112641 [2021-06-05 21:11:26,757 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:11:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112641 states. [2021-06-05 21:11:34,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112641 to 46586. [2021-06-05 21:11:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46586 states, 46585 states have (on average 6.081077600085864) internal successors, (283287), 46585 states have internal predecessors, (283287), 0 states have call successors, (0), 0 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 21:11:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46586 states to 46586 states and 283287 transitions. [2021-06-05 21:11:34,817 INFO L78 Accepts]: Start accepts. Automaton has 46586 states and 283287 transitions. Word has length 37 [2021-06-05 21:11:34,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:34,817 INFO L482 AbstractCegarLoop]: Abstraction has 46586 states and 283287 transitions. [2021-06-05 21:11:34,817 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 21:11:34,817 INFO L276 IsEmpty]: Start isEmpty. Operand 46586 states and 283287 transitions. [2021-06-05 21:11:34,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:11:34,928 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:34,928 INFO L554 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 21:11:34,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 21:11:34,928 INFO L430 AbstractCegarLoop]: === Iteration 40 === [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 21:11:34,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:34,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1808318953, now seen corresponding path program 33 times [2021-06-05 21:11:34,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:34,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088398477] [2021-06-05 21:11:34,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:35,620 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 21:11:35,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:35,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088398477] [2021-06-05 21:11:35,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088398477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:35,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:35,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:11:35,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815830390] [2021-06-05 21:11:35,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:11:35,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:35,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:11:35,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:35,622 INFO L87 Difference]: Start difference. First operand 46586 states and 283287 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 21:11:36,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:36,405 INFO L93 Difference]: Finished difference Result 115241 states and 663850 transitions. [2021-06-05 21:11:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:11:36,406 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 21:11:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:37,350 INFO L225 Difference]: With dead ends: 115241 [2021-06-05 21:11:37,350 INFO L226 Difference]: Without dead ends: 113067 [2021-06-05 21:11:37,351 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 338.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:11:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113067 states. [2021-06-05 21:11:45,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113067 to 47026. [2021-06-05 21:11:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47026 states, 47025 states have (on average 6.067985114300904) internal successors, (285347), 47025 states have internal predecessors, (285347), 0 states have call successors, (0), 0 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 21:11:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47026 states to 47026 states and 285347 transitions. [2021-06-05 21:11:45,508 INFO L78 Accepts]: Start accepts. Automaton has 47026 states and 285347 transitions. Word has length 37 [2021-06-05 21:11:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:45,508 INFO L482 AbstractCegarLoop]: Abstraction has 47026 states and 285347 transitions. [2021-06-05 21:11:45,508 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 21:11:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 47026 states and 285347 transitions. [2021-06-05 21:11:45,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:11:45,615 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:45,615 INFO L554 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 21:11:45,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 21:11:45,616 INFO L430 AbstractCegarLoop]: === Iteration 41 === [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 21:11:45,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:45,616 INFO L82 PathProgramCache]: Analyzing trace with hash -579761687, now seen corresponding path program 34 times [2021-06-05 21:11:45,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:45,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083697960] [2021-06-05 21:11:45,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:46,091 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-06-05 21:11:46,251 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 21:11:46,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:46,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083697960] [2021-06-05 21:11:46,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083697960] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:46,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:46,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:11:46,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266068936] [2021-06-05 21:11:46,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:11:46,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:46,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:11:46,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:46,252 INFO L87 Difference]: Start difference. First operand 47026 states and 285347 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 21:11:47,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:47,037 INFO L93 Difference]: Finished difference Result 114970 states and 662083 transitions. [2021-06-05 21:11:47,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:11:47,037 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 21:11:47,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:47,995 INFO L225 Difference]: With dead ends: 114970 [2021-06-05 21:11:47,995 INFO L226 Difference]: Without dead ends: 112627 [2021-06-05 21:11:47,995 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 659.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:11:54,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112627 states. [2021-06-05 21:11:55,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112627 to 46586. [2021-06-05 21:11:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46586 states, 46585 states have (on average 6.076355049908769) internal successors, (283067), 46585 states have internal predecessors, (283067), 0 states have call successors, (0), 0 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 21:11:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46586 states to 46586 states and 283067 transitions. [2021-06-05 21:11:56,099 INFO L78 Accepts]: Start accepts. Automaton has 46586 states and 283067 transitions. Word has length 37 [2021-06-05 21:11:56,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:56,099 INFO L482 AbstractCegarLoop]: Abstraction has 46586 states and 283067 transitions. [2021-06-05 21:11:56,100 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 21:11:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 46586 states and 283067 transitions. [2021-06-05 21:11:56,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:11:56,211 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:56,211 INFO L554 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 21:11:56,211 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 21:11:56,211 INFO L430 AbstractCegarLoop]: === Iteration 42 === [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 21:11:56,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:56,211 INFO L82 PathProgramCache]: Analyzing trace with hash 951570887, now seen corresponding path program 35 times [2021-06-05 21:11:56,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:56,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661095633] [2021-06-05 21:11:56,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:56,440 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 21:11:56,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:56,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661095633] [2021-06-05 21:11:56,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661095633] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:56,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:56,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:11:56,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064667159] [2021-06-05 21:11:56,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:11:56,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:56,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:11:56,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:56,441 INFO L87 Difference]: Start difference. First operand 46586 states and 283067 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 21:11:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:57,813 INFO L93 Difference]: Finished difference Result 114599 states and 660362 transitions. [2021-06-05 21:11:57,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:11:57,813 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 21:11:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:58,860 INFO L225 Difference]: With dead ends: 114599 [2021-06-05 21:11:58,860 INFO L226 Difference]: Without dead ends: 112682 [2021-06-05 21:11:58,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:12:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112682 states. [2021-06-05 21:12:06,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112682 to 46898. [2021-06-05 21:12:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46898 states, 46897 states have (on average 6.067573618781585) internal successors, (284551), 46897 states have internal predecessors, (284551), 0 states have call successors, (0), 0 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 21:12:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46898 states to 46898 states and 284551 transitions. [2021-06-05 21:12:07,050 INFO L78 Accepts]: Start accepts. Automaton has 46898 states and 284551 transitions. Word has length 37 [2021-06-05 21:12:07,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:07,050 INFO L482 AbstractCegarLoop]: Abstraction has 46898 states and 284551 transitions. [2021-06-05 21:12:07,050 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 21:12:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 46898 states and 284551 transitions. [2021-06-05 21:12:07,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:12:07,157 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:07,158 INFO L554 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 21:12:07,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 21:12:07,158 INFO L430 AbstractCegarLoop]: === Iteration 43 === [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 21:12:07,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:07,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1608504151, now seen corresponding path program 36 times [2021-06-05 21:12:07,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:07,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794725444] [2021-06-05 21:12:07,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:07,390 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 21:12:07,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:07,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794725444] [2021-06-05 21:12:07,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794725444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:07,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:07,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:12:07,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125229894] [2021-06-05 21:12:07,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:12:07,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:07,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:12:07,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:07,391 INFO L87 Difference]: Start difference. First operand 46898 states and 284551 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 21:12:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:08,589 INFO L93 Difference]: Finished difference Result 114585 states and 660005 transitions. [2021-06-05 21:12:08,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:12:08,590 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 21:12:08,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:09,575 INFO L225 Difference]: With dead ends: 114585 [2021-06-05 21:12:09,575 INFO L226 Difference]: Without dead ends: 112086 [2021-06-05 21:12:09,577 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 290.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:12:15,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112086 states. [2021-06-05 21:12:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112086 to 46302. [2021-06-05 21:12:17,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46302 states, 46301 states have (on average 6.085160147728991) internal successors, (281749), 46301 states have internal predecessors, (281749), 0 states have call successors, (0), 0 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 21:12:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46302 states to 46302 states and 281749 transitions. [2021-06-05 21:12:17,408 INFO L78 Accepts]: Start accepts. Automaton has 46302 states and 281749 transitions. Word has length 37 [2021-06-05 21:12:17,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:17,409 INFO L482 AbstractCegarLoop]: Abstraction has 46302 states and 281749 transitions. [2021-06-05 21:12:17,409 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 21:12:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 46302 states and 281749 transitions. [2021-06-05 21:12:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:12:17,516 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:17,516 INFO L554 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 21:12:17,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 21:12:17,516 INFO L430 AbstractCegarLoop]: === Iteration 44 === [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 21:12:17,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:17,517 INFO L82 PathProgramCache]: Analyzing trace with hash -73295289, now seen corresponding path program 37 times [2021-06-05 21:12:17,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:17,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128746075] [2021-06-05 21:12:17,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:17,715 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 21:12:17,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:17,716 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128746075] [2021-06-05 21:12:17,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128746075] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:17,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:17,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:12:17,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577592696] [2021-06-05 21:12:17,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:12:17,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:17,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:12:17,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:17,716 INFO L87 Difference]: Start difference. First operand 46302 states and 281749 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 21:12:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:18,930 INFO L93 Difference]: Finished difference Result 115064 states and 663151 transitions. [2021-06-05 21:12:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:12:18,930 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 21:12:18,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:19,371 INFO L225 Difference]: With dead ends: 115064 [2021-06-05 21:12:19,372 INFO L226 Difference]: Without dead ends: 112890 [2021-06-05 21:12:19,372 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 195.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:12:26,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112890 states. [2021-06-05 21:12:27,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112890 to 46968. [2021-06-05 21:12:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46968 states, 46967 states have (on average 6.072050588711223) internal successors, (285186), 46967 states have internal predecessors, (285186), 0 states have call successors, (0), 0 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 21:12:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46968 states to 46968 states and 285186 transitions. [2021-06-05 21:12:27,741 INFO L78 Accepts]: Start accepts. Automaton has 46968 states and 285186 transitions. Word has length 37 [2021-06-05 21:12:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:27,741 INFO L482 AbstractCegarLoop]: Abstraction has 46968 states and 285186 transitions. [2021-06-05 21:12:27,741 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 21:12:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 46968 states and 285186 transitions. [2021-06-05 21:12:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:12:27,856 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:27,856 INFO L554 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 21:12:27,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 21:12:27,856 INFO L430 AbstractCegarLoop]: === Iteration 45 === [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 21:12:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:27,857 INFO L82 PathProgramCache]: Analyzing trace with hash -869322169, now seen corresponding path program 38 times [2021-06-05 21:12:27,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:27,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607042945] [2021-06-05 21:12:27,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:28,043 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 21:12:28,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:28,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607042945] [2021-06-05 21:12:28,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607042945] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:28,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:28,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:12:28,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393821364] [2021-06-05 21:12:28,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:12:28,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:28,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:12:28,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:28,044 INFO L87 Difference]: Start difference. First operand 46968 states and 285186 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 21:12:29,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:29,286 INFO L93 Difference]: Finished difference Result 114805 states and 661418 transitions. [2021-06-05 21:12:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:12:29,286 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 21:12:29,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:29,729 INFO L225 Difference]: With dead ends: 114805 [2021-06-05 21:12:29,730 INFO L226 Difference]: Without dead ends: 112444 [2021-06-05 21:12:29,730 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 214.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:12:36,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112444 states. [2021-06-05 21:12:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112444 to 46522. [2021-06-05 21:12:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46522 states, 46521 states have (on average 6.080888201027493) internal successors, (282889), 46521 states have internal predecessors, (282889), 0 states have call successors, (0), 0 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 21:12:38,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46522 states to 46522 states and 282889 transitions. [2021-06-05 21:12:38,297 INFO L78 Accepts]: Start accepts. Automaton has 46522 states and 282889 transitions. Word has length 37 [2021-06-05 21:12:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:38,297 INFO L482 AbstractCegarLoop]: Abstraction has 46522 states and 282889 transitions. [2021-06-05 21:12:38,297 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 21:12:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 46522 states and 282889 transitions. [2021-06-05 21:12:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:12:38,410 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:38,410 INFO L554 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 21:12:38,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 21:12:38,410 INFO L430 AbstractCegarLoop]: === Iteration 46 === [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 21:12:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:38,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1019338025, now seen corresponding path program 39 times [2021-06-05 21:12:38,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:38,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302829267] [2021-06-05 21:12:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:38,626 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 21:12:38,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:38,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302829267] [2021-06-05 21:12:38,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302829267] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:38,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:38,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:12:38,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16102029] [2021-06-05 21:12:38,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:12:38,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:38,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:12:38,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:38,627 INFO L87 Difference]: Start difference. First operand 46522 states and 282889 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 21:12:39,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:39,727 INFO L93 Difference]: Finished difference Result 115046 states and 662868 transitions. [2021-06-05 21:12:39,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:12:39,727 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 21:12:39,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:40,186 INFO L225 Difference]: With dead ends: 115046 [2021-06-05 21:12:40,187 INFO L226 Difference]: Without dead ends: 112872 [2021-06-05 21:12:40,187 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 215.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 21:12:46,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112872 states. [2021-06-05 21:12:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112872 to 46962. [2021-06-05 21:12:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46962 states, 46961 states have (on average 6.067779646941079) internal successors, (284949), 46961 states have internal predecessors, (284949), 0 states have call successors, (0), 0 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 21:12:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46962 states to 46962 states and 284949 transitions. [2021-06-05 21:12:48,489 INFO L78 Accepts]: Start accepts. Automaton has 46962 states and 284949 transitions. Word has length 37 [2021-06-05 21:12:48,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:48,489 INFO L482 AbstractCegarLoop]: Abstraction has 46962 states and 284949 transitions. [2021-06-05 21:12:48,489 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 21:12:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 46962 states and 284949 transitions. [2021-06-05 21:12:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 21:12:48,600 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:48,600 INFO L554 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 21:12:48,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 21:12:48,600 INFO L430 AbstractCegarLoop]: === Iteration 47 === [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 21:12:48,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:48,600 INFO L82 PathProgramCache]: Analyzing trace with hash 878285383, now seen corresponding path program 40 times [2021-06-05 21:12:48,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:48,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519364538] [2021-06-05 21:12:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:48,801 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 21:12:48,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:48,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519364538] [2021-06-05 21:12:48,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519364538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:48,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:48,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 21:12:48,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422752582] [2021-06-05 21:12:48,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 21:12:48,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:48,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 21:12:48,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:48,802 INFO L87 Difference]: Start difference. First operand 46962 states and 284949 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 21:12:49,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:49,920 INFO L93 Difference]: Finished difference Result 114775 states and 661101 transitions. [2021-06-05 21:12:49,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 21:12:49,921 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 21:12:49,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:50,381 INFO L225 Difference]: With dead ends: 114775 [2021-06-05 21:12:50,382 INFO L226 Difference]: Without dead ends: 112432 [2021-06-05 21:12:50,382 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 222.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 Received shutdown request... [2021-06-05 21:12:56,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112432 states. [2021-06-05 21:12:56,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 21:12:56,842 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 21:12:56,844 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 21:12:56,845 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 21:12:56,845 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 09:12:56 BasicIcfg [2021-06-05 21:12:56,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 21:12:56,846 INFO L168 Benchmark]: Toolchain (without parser) took 731399.67 ms. Allocated memory was 379.6 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 358.4 MB in the beginning and 11.3 GB in the end (delta: -11.0 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. [2021-06-05 21:12:56,846 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 379.6 MB. Free memory was 359.5 MB in the beginning and 359.4 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 21:12:56,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 379.6 MB. Free memory was 358.3 MB in the beginning and 356.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 21:12:56,846 INFO L168 Benchmark]: Boogie Preprocessor took 9.67 ms. Allocated memory is still 379.6 MB. Free memory was 356.8 MB in the beginning and 355.9 MB in the end (delta: 925.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 21:12:56,846 INFO L168 Benchmark]: RCFGBuilder took 195.09 ms. Allocated memory is still 379.6 MB. Free memory was 355.8 MB in the beginning and 343.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-05 21:12:56,846 INFO L168 Benchmark]: TraceAbstraction took 731171.85 ms. Allocated memory was 379.6 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 343.2 MB in the beginning and 11.3 GB in the end (delta: -11.0 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. [2021-06-05 21:12:56,846 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 0.14 ms. Allocated memory is still 379.6 MB. Free memory was 359.5 MB in the beginning and 359.4 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 379.6 MB. Free memory was 358.3 MB in the beginning and 356.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 9.67 ms. Allocated memory is still 379.6 MB. Free memory was 356.8 MB in the beginning and 355.9 MB in the end (delta: 925.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 195.09 ms. Allocated memory is still 379.6 MB. Free memory was 355.8 MB in the beginning and 343.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 731171.85 ms. Allocated memory was 379.6 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 343.2 MB in the beginning and 11.3 GB in the end (delta: -11.0 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 19 procedures, 85 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 731017.0ms, OverallIterations: 47, TraceHistogramMax: 1, EmptinessCheckTime: 12838.3ms, AutomataDifference: 89782.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 186474.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9738 SDtfs, 11854 SDslu, 24542 SDs, 0 SdLazy, 3831 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3107.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 407 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 10151.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=271988occurred in iteration=0, InterpolantAutomatonStates: 461, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 430726.7ms AutomataMinimizationTime, 47 MinimizatonAttempts, 2568012 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 53.2ms SsaConstructionTime, 142.5ms SatisfiabilityAnalysisTime, 10721.6ms InterpolantComputationTime, 1739 NumberOfCodeBlocks, 1739 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 1692 ConstructedInterpolants, 0 QuantifiedInterpolants, 59069 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 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