/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-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 16:54:44,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 16:54:44,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 16:54:44,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 16:54:44,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 16:54:44,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 16:54:44,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 16:54:44,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 16:54:44,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 16:54:44,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 16:54:44,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 16:54:44,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 16:54:44,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 16:54:44,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 16:54:44,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 16:54:44,114 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-Sleep-NoLbe-New_States.epf [2021-03-12 16:54:44,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 16:54:44,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 16:54:44,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 16:54:44,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 16:54:44,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 16:54:44,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 16:54:44,138 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 16:54:44,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 16:54:44,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 16:54:44,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 16:54:44,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 16:54:44,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 16:54:44,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 16:54:44,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 16:54:44,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 16:54:44,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 16:54:44,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 16:54:44,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 16:54:44,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 16:54:44,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 16:54:44,141 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 16:54:44,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 16:54:44,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 16:54:44,141 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 16:54:44,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 16:54:44,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 16:54:44,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 16:54:44,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 16:54:44,462 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 16:54:44,463 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 16:54:44,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl [2021-03-12 16:54:44,465 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl' [2021-03-12 16:54:44,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 16:54:44,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 16:54:44,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 16:54:44,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 16:54:44,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 16:54:44,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 16:54:44,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 16:54:44,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 16:54:44,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 16:54:44,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... [2021-03-12 16:54:44,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 16:54:44,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 16:54:44,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 16:54:44,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 16:54:44,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 16:54:44,658 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 16:54:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 16:54:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 16:54:44,659 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 16:54:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 16:54:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 16:54:44,659 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 16:54:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 16:54:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 16:54:44,660 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 16:54:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 16:54:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 16:54:44,660 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-12 16:54:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-12 16:54:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-12 16:54:44,661 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-03-12 16:54:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-03-12 16:54:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-03-12 16:54:44,664 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 16:54:44,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 16:54:44,817 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 16:54:44,818 INFO L202 PluginConnector]: Adding new model min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:54:44 BoogieIcfgContainer [2021-03-12 16:54:44,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 16:54:44,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 16:54:44,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 16:54:44,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 16:54:44,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:54:44" (1/2) ... [2021-03-12 16:54:44,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa75079 and model type min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 04:54:44, skipping insertion in model container [2021-03-12 16:54:44,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:54:44" (2/2) ... [2021-03-12 16:54:44,825 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-2.wvr.bpl [2021-03-12 16:54:44,829 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 16:54:44,830 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 16:54:44,833 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 16:54:44,834 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 16:54:44,926 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-03-12 16:54:44,940 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-12 16:54:44,976 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 16:54:44,977 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 16:54:44,977 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 16:54:44,977 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 16:54:44,977 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 16:54:44,977 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 16:54:44,977 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 16:54:44,977 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 16:54:45,423 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:54:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:54:45,431 INFO L82 PathProgramCache]: Analyzing trace with hash 590783992, now seen corresponding path program 1 times [2021-03-12 16:54:45,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:54:45,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851772935] [2021-03-12 16:54:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:54:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:54:45,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851772935] [2021-03-12 16:54:45,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629920397] [2021-03-12 16:54:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:45,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-12 16:54:45,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:54:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 16:54:45,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:54:45,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-12 16:54:45,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729350323] [2021-03-12 16:54:45,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-12 16:54:45,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:54:45,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-12 16:54:45,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-12 16:54:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:45,907 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:54:45,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:54:45,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:46,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:46,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-03-12 16:54:46,372 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:54:46,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:54:46,373 INFO L82 PathProgramCache]: Analyzing trace with hash 87665207, now seen corresponding path program 1 times [2021-03-12 16:54:46,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:54:46,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394050551] [2021-03-12 16:54:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:54:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 16:54:46,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394050551] [2021-03-12 16:54:46,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905862986] [2021-03-12 16:54:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:46,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-12 16:54:46,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:54:46,666 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 16:54:46,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:54:46,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-12 16:54:46,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988471281] [2021-03-12 16:54:46,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 16:54:46,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:54:46,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 16:54:46,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-12 16:54:46,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:46,671 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:54:46,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:54:46,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:46,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:46,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:46,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:46,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:46,988 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:54:46,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:54:46,988 INFO L82 PathProgramCache]: Analyzing trace with hash -753453533, now seen corresponding path program 2 times [2021-03-12 16:54:46,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:54:46,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327581545] [2021-03-12 16:54:46,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:54:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-03-12 16:54:47,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327581545] [2021-03-12 16:54:47,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830311959] [2021-03-12 16:54:47,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:47,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 16:54:47,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:54:47,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-12 16:54:47,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:54:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-03-12 16:54:47,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:54:47,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-12 16:54:47,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236642918] [2021-03-12 16:54:47,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 16:54:47,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:54:47,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 16:54:47,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-12 16:54:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:47,180 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:54:47,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:54:47,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:47,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:47,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:47,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:47,503 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:54:47,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:54:47,504 INFO L82 PathProgramCache]: Analyzing trace with hash -891502623, now seen corresponding path program 3 times [2021-03-12 16:54:47,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:54:47,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323987512] [2021-03-12 16:54:47,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:54:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:47,597 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-03-12 16:54:47,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323987512] [2021-03-12 16:54:47,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795054608] [2021-03-12 16:54:47,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:47,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 16:54:47,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:54:47,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-12 16:54:47,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:54:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-03-12 16:54:47,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:54:47,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-12 16:54:47,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328351378] [2021-03-12 16:54:47,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 16:54:47,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:54:47,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 16:54:47,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 16:54:47,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:47,738 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:54:47,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:54:47,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:47,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:47,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:47,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:54:48,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:48,087 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:54:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:54:48,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1158647366, now seen corresponding path program 4 times [2021-03-12 16:54:48,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:54:48,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261355370] [2021-03-12 16:54:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:54:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-12 16:54:48,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261355370] [2021-03-12 16:54:48,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431513575] [2021-03-12 16:54:48,148 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:48,192 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 16:54:48,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:54:48,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 16:54:48,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:54:48,300 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-12 16:54:48,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:54:48,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 16:54:48,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906391807] [2021-03-12 16:54:48,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 16:54:48,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:54:48,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 16:54:48,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-03-12 16:54:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:48,301 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:54:48,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:54:48,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:48,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:48,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:48,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:54:48,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:54:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:54:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:54:50,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:50,186 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:54:50,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:54:50,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1777390458, now seen corresponding path program 5 times [2021-03-12 16:54:50,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:54:50,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521084096] [2021-03-12 16:54:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:54:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-03-12 16:54:50,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521084096] [2021-03-12 16:54:50,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977368925] [2021-03-12 16:54:50,305 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:50,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-03-12 16:54:50,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:54:50,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 16:54:50,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:54:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-12 16:54:50,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:54:50,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-03-12 16:54:50,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949529176] [2021-03-12 16:54:50,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-12 16:54:50,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:54:50,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-12 16:54:50,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-03-12 16:54:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:50,507 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:54:50,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:54:50,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:50,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:50,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:54:50,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:54:50,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:54:50,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:54:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:54:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:54:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-03-12 16:54:54,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:54,883 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:54:54,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:54:54,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2104346657, now seen corresponding path program 6 times [2021-03-12 16:54:54,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:54:54,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549215142] [2021-03-12 16:54:54,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:54:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:54:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 27 proven. 55 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-03-12 16:54:55,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549215142] [2021-03-12 16:54:55,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191343164] [2021-03-12 16:54:55,036 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:54:55,072 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-03-12 16:54:55,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:54:55,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-12 16:54:55,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:54:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 15 proven. 52 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-03-12 16:54:55,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:54:55,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 22 [2021-03-12 16:54:55,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443977126] [2021-03-12 16:54:55,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-12 16:54:55,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:54:55,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-12 16:54:55,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2021-03-12 16:54:55,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:54:55,262 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:54:55,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.869565217391305) internal successors, (112), 22 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:54:55,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:54:55,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:54:55,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:54:55,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:54:55,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:54:55,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-03-12 16:54:55,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:55:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:55:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-03-12 16:55:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2021-03-12 16:55:30,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-03-12 16:55:30,651 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:55:30,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:30,652 INFO L82 PathProgramCache]: Analyzing trace with hash 422314821, now seen corresponding path program 7 times [2021-03-12 16:55:30,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:30,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134878857] [2021-03-12 16:55:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 247 proven. 399 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-03-12 16:55:30,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134878857] [2021-03-12 16:55:30,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114890444] [2021-03-12 16:55:30,957 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:31,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-12 16:55:31,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 303 proven. 338 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-03-12 16:55:31,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:55:31,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21] total 45 [2021-03-12 16:55:31,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571275288] [2021-03-12 16:55:31,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-03-12 16:55:31,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:31,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-03-12 16:55:31,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1804, Unknown=0, NotChecked=0, Total=2070 [2021-03-12 16:55:31,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:31,626 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:31,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 4.782608695652174) internal successors, (220), 45 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:55:31,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:55:31,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:31,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:31,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:31,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:55:31,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-03-12 16:55:31,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 199 states. [2021-03-12 16:55:31,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:55:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:55:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-03-12 16:55:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2021-03-12 16:55:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-03-12 16:55:33,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:33,801 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-12 16:55:33,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:33,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1281325277, now seen corresponding path program 8 times [2021-03-12 16:55:33,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:33,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504910121] [2021-03-12 16:55:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 458 proven. 276 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-03-12 16:55:34,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504910121] [2021-03-12 16:55:34,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359954755] [2021-03-12 16:55:34,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:34,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 16:55:34,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:55:34,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-12 16:55:34,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 457 proven. 210 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-03-12 16:55:35,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:55:35,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27] total 57 [2021-03-12 16:55:35,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994229462] [2021-03-12 16:55:35,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-03-12 16:55:35,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:35,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-03-12 16:55:35,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=2893, Unknown=0, NotChecked=0, Total=3306 [2021-03-12 16:55:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:35,089 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:35,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 3.896551724137931) internal successors, (226), 57 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 199 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-03-12 16:55:35,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.