/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 11:31:04,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 11:31:04,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 11:31:04,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 11:31:04,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 11:31:04,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 11:31:04,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 11:31:04,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 11:31:04,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 11:31:04,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 11:31:04,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 11:31:04,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 11:31:04,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 11:31:04,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 11:31:04,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 11:31:04,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 11:31:04,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-10 11:31:04,442 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-10 11:31:04,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 11:31:04,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 11:31:04,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 11:31:04,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 11:31:04,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 11:31:04,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 11:31:04,475 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 11:31:04,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 11:31:04,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 11:31:04,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 11:31:04,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 11:31:04,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 11:31:04,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 11:31:04,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 11:31:04,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 11:31:04,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 11:31:04,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 11:31:04,479 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 11:31:04,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 11:31:04,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 11:31:04,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 11:31:04,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 11:31:04,767 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 11:31:04,770 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 11:31:04,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2021-07-10 11:31:04,771 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2021-07-10 11:31:04,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 11:31:04,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 11:31:04,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 11:31:04,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 11:31:04,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 11:31:04,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 11:31:04,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 11:31:04,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 11:31:04,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 11:31:04,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... [2021-07-10 11:31:04,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 11:31:04,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 11:31:04,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 11:31:04,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 11:31:04,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 11:31:04,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 11:31:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 11:31:04,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 11:31:04,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 11:31:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 11:31:04,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 11:31:04,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 11:31:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 11:31:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 11:31:04,971 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 11:31:05,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 11:31:05,142 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 11:31:05,143 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 11:31:05 BoogieIcfgContainer [2021-07-10 11:31:05,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 11:31:05,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 11:31:05,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 11:31:05,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 11:31:05,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 11:31:04" (1/2) ... [2021-07-10 11:31:05,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e220004 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 11:31:05, skipping insertion in model container [2021-07-10 11:31:05,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 11:31:05" (2/2) ... [2021-07-10 11:31:05,148 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2021-07-10 11:31:05,152 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 11:31:05,152 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 11:31:05,152 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 11:31:05,152 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 11:31:05,205 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 11:31:05,237 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-07-10 11:31:05,371 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 11:31:05,371 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 11:31:05,371 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 11:31:05,372 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 11:31:05,372 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 11:31:05,372 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 11:31:05,372 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 11:31:05,372 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 11:31:05,508 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:05,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:05,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1960960119, now seen corresponding path program 1 times [2021-07-10 11:31:05,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:05,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017824839] [2021-07-10 11:31:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:05,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:05,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:05,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017824839] [2021-07-10 11:31:05,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017824839] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 11:31:05,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 11:31:05,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 11:31:05,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162263890] [2021-07-10 11:31:05,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 11:31:05,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:05,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 11:31:05,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 11:31:05,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:05,650 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:05,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:05,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:05,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 11:31:05,677 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:05,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:05,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1140283143, now seen corresponding path program 1 times [2021-07-10 11:31:05,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:05,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878545790] [2021-07-10 11:31:05,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 11:31:05,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:05,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878545790] [2021-07-10 11:31:05,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878545790] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 11:31:05,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 11:31:05,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-10 11:31:05,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064527320] [2021-07-10 11:31:05,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 11:31:05,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:05,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 11:31:05,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 11:31:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:05,702 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:05,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:05,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:05,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:05,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:05,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:05,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 11:31:05,725 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:05,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:05,726 INFO L82 PathProgramCache]: Analyzing trace with hash 97262777, now seen corresponding path program 1 times [2021-07-10 11:31:05,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:05,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654915241] [2021-07-10 11:31:05,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:05,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:05,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:05,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654915241] [2021-07-10 11:31:05,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654915241] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:05,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796332948] [2021-07-10 11:31:05,892 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 [2021-07-10 11:31:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:05,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-10 11:31:05,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:06,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796332948] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:06,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:06,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-10 11:31:06,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26681029] [2021-07-10 11:31:06,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 11:31:06,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:06,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 11:31:06,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-07-10 11:31:06,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:06,204 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:06,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 20 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:06,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:06,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:06,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:06,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:06,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:31:06,736 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:06,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:06,737 INFO L82 PathProgramCache]: Analyzing trace with hash 561385337, now seen corresponding path program 2 times [2021-07-10 11:31:06,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:06,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871313298] [2021-07-10 11:31:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:06,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:06,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871313298] [2021-07-10 11:31:06,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871313298] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:06,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965899871] [2021-07-10 11:31:06,959 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 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 [2021-07-10 11:31:07,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 11:31:07,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:07,039 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-10 11:31:07,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:07,384 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:07,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965899871] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:07,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:07,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-10 11:31:07,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561531998] [2021-07-10 11:31:07,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-10 11:31:07,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:07,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-10 11:31:07,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2021-07-10 11:31:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:07,386 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:07,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:07,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:07,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:07,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:07,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:08,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:31:08,033 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:08,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:08,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1477470399, now seen corresponding path program 3 times [2021-07-10 11:31:08,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:08,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891689021] [2021-07-10 11:31:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:08,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:08,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891689021] [2021-07-10 11:31:08,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891689021] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:08,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792412736] [2021-07-10 11:31:08,334 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 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 [2021-07-10 11:31:08,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-10 11:31:08,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:08,364 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-10 11:31:08,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:08,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792412736] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:08,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:08,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2021-07-10 11:31:08,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527036777] [2021-07-10 11:31:08,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-10 11:31:08,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:08,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-10 11:31:08,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=991, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 11:31:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:08,877 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:08,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.0) internal successors, (68), 33 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) [2021-07-10 11:31:08,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:08,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:08,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:08,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:08,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:11,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:31:11,191 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:11,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:11,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1565267587, now seen corresponding path program 4 times [2021-07-10 11:31:11,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:11,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197420911] [2021-07-10 11:31:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:11,552 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:11,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:11,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197420911] [2021-07-10 11:31:11,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197420911] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:11,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765794565] [2021-07-10 11:31:11,552 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 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 [2021-07-10 11:31:11,583 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 11:31:11,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:11,584 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 63 conjunts are in the unsatisfiable core [2021-07-10 11:31:11,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:12,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765794565] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:12,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:12,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22] total 40 [2021-07-10 11:31:12,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753711710] [2021-07-10 11:31:12,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-10 11:31:12,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:12,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-10 11:31:12,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640 [2021-07-10 11:31:12,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:12,220 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:12,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.048780487804878) internal successors, (84), 40 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:12,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:12,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:12,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:12,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:12,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:12,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:15,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-07-10 11:31:15,261 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:15,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:15,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1691123385, now seen corresponding path program 5 times [2021-07-10 11:31:15,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:15,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759638787] [2021-07-10 11:31:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:15,765 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 25 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:15,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:15,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759638787] [2021-07-10 11:31:15,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759638787] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:15,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760817100] [2021-07-10 11:31:15,766 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 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 [2021-07-10 11:31:15,806 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-07-10 11:31:15,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:15,807 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 81 conjunts are in the unsatisfiable core [2021-07-10 11:31:15,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:16,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760817100] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:16,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:16,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 47 [2021-07-10 11:31:16,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557770511] [2021-07-10 11:31:16,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-07-10 11:31:16,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:16,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-07-10 11:31:16,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1988, Unknown=0, NotChecked=0, Total=2256 [2021-07-10 11:31:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:16,675 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:16,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.0833333333333335) internal successors, (100), 47 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:16,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:16,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:16,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:16,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:16,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:16,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:16,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:20,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-10 11:31:20,097 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:20,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1948641547, now seen corresponding path program 6 times [2021-07-10 11:31:20,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:20,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598862448] [2021-07-10 11:31:20,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 36 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:20,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:20,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598862448] [2021-07-10 11:31:20,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598862448] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:20,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508890878] [2021-07-10 11:31:20,645 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 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 [2021-07-10 11:31:20,692 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-07-10 11:31:20,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:20,693 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 97 conjunts are in the unsatisfiable core [2021-07-10 11:31:20,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:21,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508890878] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:21,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:21,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 30] total 54 [2021-07-10 11:31:21,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534710189] [2021-07-10 11:31:21,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-07-10 11:31:21,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:21,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-07-10 11:31:21,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=2628, Unknown=0, NotChecked=0, Total=2970 [2021-07-10 11:31:21,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:21,764 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:21,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.109090909090909) internal successors, (116), 54 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:21,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:21,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:21,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:21,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:21,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:21,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:21,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:21,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:25,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-10 11:31:25,885 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:25,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:25,885 INFO L82 PathProgramCache]: Analyzing trace with hash 143822287, now seen corresponding path program 7 times [2021-07-10 11:31:25,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:25,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311452690] [2021-07-10 11:31:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:26,569 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 49 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:26,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:26,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311452690] [2021-07-10 11:31:26,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311452690] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:26,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412862354] [2021-07-10 11:31:26,570 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 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 [2021-07-10 11:31:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:26,608 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 113 conjunts are in the unsatisfiable core [2021-07-10 11:31:26,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:27,910 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:27,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412862354] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:27,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:27,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 34] total 61 [2021-07-10 11:31:27,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923664281] [2021-07-10 11:31:27,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-07-10 11:31:27,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:27,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-07-10 11:31:27,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=3357, Unknown=0, NotChecked=0, Total=3782 [2021-07-10 11:31:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:27,912 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:27,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.129032258064516) internal successors, (132), 61 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:27,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:27,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:27,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:27,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:27,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:27,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:27,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:27,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:27,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:31:32,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:31:32,658 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:32,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:32,658 INFO L82 PathProgramCache]: Analyzing trace with hash 720940947, now seen corresponding path program 8 times [2021-07-10 11:31:32,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:32,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135473153] [2021-07-10 11:31:32,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 64 proven. 386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:33,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:33,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135473153] [2021-07-10 11:31:33,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135473153] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:33,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351728624] [2021-07-10 11:31:33,306 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 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 [2021-07-10 11:31:33,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 11:31:33,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:33,348 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 129 conjunts are in the unsatisfiable core [2021-07-10 11:31:33,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:34,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351728624] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:34,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:34,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 38] total 68 [2021-07-10 11:31:34,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152887765] [2021-07-10 11:31:34,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-07-10 11:31:34,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:34,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-07-10 11:31:34,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=517, Invalid=4175, Unknown=0, NotChecked=0, Total=4692 [2021-07-10 11:31:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:34,891 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:34,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.1449275362318843) internal successors, (148), 68 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:34,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:34,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:31:34,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:36,635 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-07-10 11:31:36,912 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-10 11:31:37,509 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-10 11:31:37,997 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-07-10 11:31:39,420 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:31:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:31:40,605 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:31:40,605 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:40,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:40,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1407684183, now seen corresponding path program 9 times [2021-07-10 11:31:40,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:40,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779077284] [2021-07-10 11:31:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 81 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:41,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:41,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779077284] [2021-07-10 11:31:41,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779077284] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:41,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324487675] [2021-07-10 11:31:41,395 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 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 [2021-07-10 11:31:41,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 25 check-sat command(s) [2021-07-10 11:31:41,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:41,483 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 145 conjunts are in the unsatisfiable core [2021-07-10 11:31:41,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:43,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324487675] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:43,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:43,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 42] total 75 [2021-07-10 11:31:43,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155775170] [2021-07-10 11:31:43,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-07-10 11:31:43,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:43,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-07-10 11:31:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=5080, Unknown=0, NotChecked=0, Total=5700 [2021-07-10 11:31:43,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:43,281 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:43,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 2.1578947368421053) internal successors, (164), 75 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:43,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:43,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:43,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:43,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:31:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:31:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:44,936 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-07-10 11:31:45,305 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-07-10 11:31:45,636 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-07-10 11:31:45,969 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-07-10 11:31:46,244 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-07-10 11:31:46,546 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-07-10 11:31:46,756 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-07-10 11:31:48,445 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-07-10 11:31:48,673 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:31:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:31:50,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:31:50,067 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:31:50,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:31:50,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1778488805, now seen corresponding path program 10 times [2021-07-10 11:31:50,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:31:50,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534760965] [2021-07-10 11:31:50,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:31:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:31:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 100 proven. 622 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:50,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:31:50,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534760965] [2021-07-10 11:31:50,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534760965] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:50,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751504956] [2021-07-10 11:31:50,883 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:31:50,930 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 11:31:50,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:31:50,932 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 153 conjunts are in the unsatisfiable core [2021-07-10 11:31:50,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:31:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:31:53,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751504956] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:31:53,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:31:53,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 46] total 82 [2021-07-10 11:31:53,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392899352] [2021-07-10 11:31:53,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-07-10 11:31:53,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:31:53,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-07-10 11:31:53,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=692, Invalid=6114, Unknown=0, NotChecked=0, Total=6806 [2021-07-10 11:31:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:53,486 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:31:53,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 2.1686746987951806) internal successors, (180), 82 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:31:53,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:31:53,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:31:56,250 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2021-07-10 11:31:56,632 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-07-10 11:31:56,950 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2021-07-10 11:31:57,305 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-07-10 11:31:57,562 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-07-10 11:31:57,797 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:31:59,347 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-07-10 11:31:59,665 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-07-10 11:31:59,919 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2021-07-10 11:32:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:01,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-10 11:32:01,692 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:32:01,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:32:01,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1846770977, now seen corresponding path program 11 times [2021-07-10 11:32:01,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:32:01,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043955673] [2021-07-10 11:32:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:32:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:32:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 121 proven. 761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:02,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:32:02,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043955673] [2021-07-10 11:32:02,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043955673] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:02,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119264613] [2021-07-10 11:32:02,557 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:32:02,631 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2021-07-10 11:32:02,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:32:02,633 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 177 conjunts are in the unsatisfiable core [2021-07-10 11:32:02,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:32:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:05,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119264613] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:05,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:32:05,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 50] total 89 [2021-07-10 11:32:05,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739272993] [2021-07-10 11:32:05,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-07-10 11:32:05,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:32:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-07-10 11:32:05,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=849, Invalid=7161, Unknown=0, NotChecked=0, Total=8010 [2021-07-10 11:32:05,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:05,014 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:32:05,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 2.1777777777777776) internal successors, (196), 89 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:06,840 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:32:07,198 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:32:07,577 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-07-10 11:32:08,030 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-07-10 11:32:08,400 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2021-07-10 11:32:08,846 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-07-10 11:32:09,214 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2021-07-10 11:32:09,585 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-07-10 11:32:09,892 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2021-07-10 11:32:10,145 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:32:10,360 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:32:11,921 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-07-10 11:32:12,290 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2021-07-10 11:32:12,567 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2021-07-10 11:32:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:32:14,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:32:14,460 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:32:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:32:14,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1785796771, now seen corresponding path program 12 times [2021-07-10 11:32:14,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:32:14,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535788936] [2021-07-10 11:32:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:32:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:32:15,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 144 proven. 914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:15,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:32:15,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535788936] [2021-07-10 11:32:15,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535788936] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:15,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293257630] [2021-07-10 11:32:15,488 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:32:15,597 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 34 check-sat command(s) [2021-07-10 11:32:15,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:32:15,600 WARN L261 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 191 conjunts are in the unsatisfiable core [2021-07-10 11:32:15,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:32:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 0 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:18,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293257630] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:18,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:32:18,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 54] total 96 [2021-07-10 11:32:18,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74254825] [2021-07-10 11:32:18,328 INFO L462 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-07-10 11:32:18,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:32:18,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-07-10 11:32:18,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=8340, Unknown=0, NotChecked=0, Total=9312 [2021-07-10 11:32:18,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:18,330 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:32:18,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 97 states, 97 states have (on average 2.185567010309278) internal successors, (212), 96 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:32:18,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:20,328 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:32:21,214 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2021-07-10 11:32:21,592 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2021-07-10 11:32:21,936 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2021-07-10 11:32:22,323 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2021-07-10 11:32:22,644 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2021-07-10 11:32:22,999 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2021-07-10 11:32:23,295 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2021-07-10 11:32:23,545 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:32:23,769 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:32:25,527 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2021-07-10 11:32:25,908 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 94 [2021-07-10 11:32:26,210 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2021-07-10 11:32:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:32:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:32:28,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-07-10 11:32:28,461 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:32:28,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:32:28,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1201968281, now seen corresponding path program 13 times [2021-07-10 11:32:28,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:32:28,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889937044] [2021-07-10 11:32:28,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:32:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:32:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 169 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:29,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:32:29,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889937044] [2021-07-10 11:32:29,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889937044] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:29,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760562593] [2021-07-10 11:32:29,625 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:32:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:32:29,686 WARN L261 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 198 conjunts are in the unsatisfiable core [2021-07-10 11:32:29,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:32:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 0 proven. 1250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:33,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760562593] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:33,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:32:33,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 58] total 103 [2021-07-10 11:32:33,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257613824] [2021-07-10 11:32:33,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-07-10 11:32:33,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:32:33,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-07-10 11:32:33,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1044, Invalid=9668, Unknown=0, NotChecked=0, Total=10712 [2021-07-10 11:32:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:33,456 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:32:33,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 104 states, 104 states have (on average 2.1923076923076925) internal successors, (228), 103 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:32:33,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:35,691 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-07-10 11:32:36,015 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-10 11:32:36,310 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-10 11:32:36,620 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-10 11:32:37,000 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2021-07-10 11:32:37,504 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2021-07-10 11:32:37,914 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2021-07-10 11:32:38,423 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2021-07-10 11:32:38,833 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2021-07-10 11:32:39,246 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2021-07-10 11:32:39,547 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 99 [2021-07-10 11:32:39,841 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 11:32:40,081 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 11:32:40,321 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 11:32:42,238 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2021-07-10 11:32:42,660 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2021-07-10 11:32:42,965 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2021-07-10 11:32:45,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:45,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:32:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:32:45,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:32:45,652 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:32:45,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:32:45,652 INFO L82 PathProgramCache]: Analyzing trace with hash 2123021099, now seen corresponding path program 14 times [2021-07-10 11:32:45,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:32:45,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061248615] [2021-07-10 11:32:45,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:32:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:32:46,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 196 proven. 1262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:46,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:32:46,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061248615] [2021-07-10 11:32:46,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061248615] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:46,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269105325] [2021-07-10 11:32:46,967 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:32:47,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 11:32:47,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:32:47,037 WARN L261 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 225 conjunts are in the unsatisfiable core [2021-07-10 11:32:47,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:32:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 0 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:32:50,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269105325] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:32:50,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:32:50,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 62] total 110 [2021-07-10 11:32:50,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109688222] [2021-07-10 11:32:50,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-07-10 11:32:50,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:32:50,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-07-10 11:32:50,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1258, Invalid=10952, Unknown=0, NotChecked=0, Total=12210 [2021-07-10 11:32:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:50,585 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:32:50,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 111 states, 111 states have (on average 2.1981981981981984) internal successors, (244), 110 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:32:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:32:52,774 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-10 11:32:53,094 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-10 11:32:53,449 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-10 11:32:53,908 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-10 11:32:54,330 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2021-07-10 11:32:54,893 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2021-07-10 11:32:55,358 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2021-07-10 11:32:55,903 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2021-07-10 11:32:56,409 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2021-07-10 11:32:56,881 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2021-07-10 11:32:57,228 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2021-07-10 11:32:57,564 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 11:32:57,848 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 11:32:58,111 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 11:32:58,357 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 11:32:58,627 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-10 11:33:00,319 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2021-07-10 11:33:00,761 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-07-10 11:33:01,142 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 106 [2021-07-10 11:33:03,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:33:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:33:03,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:33:03,828 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:33:03,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:33:03,829 INFO L82 PathProgramCache]: Analyzing trace with hash 502155247, now seen corresponding path program 15 times [2021-07-10 11:33:03,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:33:03,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749513227] [2021-07-10 11:33:03,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:33:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:33:05,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 225 proven. 1457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:33:05,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:33:05,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749513227] [2021-07-10 11:33:05,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749513227] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:33:05,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498035521] [2021-07-10 11:33:05,177 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:33:05,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 43 check-sat command(s) [2021-07-10 11:33:05,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:33:05,297 WARN L261 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 213 conjunts are in the unsatisfiable core [2021-07-10 11:33:05,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:33:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 0 proven. 1682 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:33:10,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498035521] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:33:10,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:33:10,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 66] total 117 [2021-07-10 11:33:10,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660993403] [2021-07-10 11:33:10,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-07-10 11:33:10,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:33:10,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-07-10 11:33:10,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=12751, Unknown=0, NotChecked=0, Total=13806 [2021-07-10 11:33:10,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:33:10,370 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:33:10,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 118 states, 118 states have (on average 2.2033898305084745) internal successors, (260), 117 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:33:10,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:33:12,995 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:33:13,362 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:33:13,782 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-10 11:33:14,199 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-10 11:33:14,638 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-10 11:33:15,139 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-10 11:33:15,624 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2021-07-10 11:33:16,226 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-07-10 11:33:16,707 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 114 [2021-07-10 11:33:17,289 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-07-10 11:33:17,827 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 114 [2021-07-10 11:33:18,389 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 115 [2021-07-10 11:33:18,780 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 113 [2021-07-10 11:33:19,159 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 11:33:19,498 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 11:33:19,817 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 11:33:20,112 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:33:20,420 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:33:20,696 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:33:22,989 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-07-10 11:33:23,506 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 115 [2021-07-10 11:33:23,902 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 113 [2021-07-10 11:33:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:33:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:33:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:33:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:33:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:33:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:33:27,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:33:27,550 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:33:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:33:27,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1233473971, now seen corresponding path program 16 times [2021-07-10 11:33:27,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:33:27,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567891887] [2021-07-10 11:33:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:33:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:33:29,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 256 proven. 1666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:33:29,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:33:29,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567891887] [2021-07-10 11:33:29,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567891887] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:33:29,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978726684] [2021-07-10 11:33:29,153 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:33:29,219 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 11:33:29,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:33:29,222 WARN L261 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 243 conjunts are in the unsatisfiable core [2021-07-10 11:33:29,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:33:34,124 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-10 11:33:34,475 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-10 11:33:34,901 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-10 11:33:35,725 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2021-07-10 11:33:36,463 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-10 11:33:37,000 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-10 11:33:37,337 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-07-10 11:33:37,821 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-10 11:33:38,059 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-10 11:33:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:33:38,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978726684] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:33:38,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:33:38,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 70] total 124 [2021-07-10 11:33:38,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104670309] [2021-07-10 11:33:38,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 125 states [2021-07-10 11:33:38,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:33:38,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-07-10 11:33:38,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1472, Invalid=14028, Unknown=0, NotChecked=0, Total=15500 [2021-07-10 11:33:38,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:33:38,621 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:33:38,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 125 states, 125 states have (on average 2.208) internal successors, (276), 124 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:33:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:33:38,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:33:41,093 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:33:41,458 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:33:41,846 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-10 11:33:42,254 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-10 11:33:42,670 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-10 11:33:43,091 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-10 11:33:43,596 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-10 11:33:44,083 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 119 [2021-07-10 11:33:44,756 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 123 [2021-07-10 11:33:45,327 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 121 [2021-07-10 11:33:46,018 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 123 [2021-07-10 11:33:46,598 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 121 [2021-07-10 11:33:47,166 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2021-07-10 11:33:47,591 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 120 [2021-07-10 11:33:48,002 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 11:33:48,355 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 11:33:48,703 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 11:33:49,018 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 11:33:49,314 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:33:49,604 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:33:49,874 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:33:52,151 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 118 [2021-07-10 11:33:52,697 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 122 [2021-07-10 11:33:53,125 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 120 [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:33:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:33:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:33:57,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable127 [2021-07-10 11:33:57,156 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:33:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:33:57,157 INFO L82 PathProgramCache]: Analyzing trace with hash -94431113, now seen corresponding path program 17 times [2021-07-10 11:33:57,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:33:57,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149955919] [2021-07-10 11:33:57,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:33:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:33:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 289 proven. 1889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:33:58,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:33:58,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149955919] [2021-07-10 11:33:58,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149955919] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:33:58,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860662956] [2021-07-10 11:33:58,775 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:33:58,906 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) [2021-07-10 11:33:58,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:33:58,909 WARN L261 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 273 conjunts are in the unsatisfiable core [2021-07-10 11:33:58,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:34:03,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 0 proven. 2178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:34:03,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860662956] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:34:03,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:34:03,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 74] total 131 [2021-07-10 11:34:03,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86601496] [2021-07-10 11:34:03,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 132 states [2021-07-10 11:34:03,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:34:03,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-07-10 11:34:03,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1752, Invalid=15540, Unknown=0, NotChecked=0, Total=17292 [2021-07-10 11:34:03,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:34:03,641 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:34:03,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 132 states, 132 states have (on average 2.212121212121212) internal successors, (292), 131 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:34:03,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:34:03,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:34:03,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:34:03,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:34:03,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:34:03,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:34:03,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:34:03,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:34:05,578 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:34:05,913 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:34:06,303 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-10 11:34:06,689 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-10 11:34:07,110 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-10 11:34:07,511 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-10 11:34:07,935 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-10 11:34:08,486 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-10 11:34:09,035 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2021-07-10 11:34:09,747 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 130 [2021-07-10 11:34:10,333 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 128 [2021-07-10 11:34:11,023 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 130 [2021-07-10 11:34:11,628 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 128 [2021-07-10 11:34:12,233 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 129 [2021-07-10 11:34:12,689 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 127 [2021-07-10 11:34:13,116 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 11:34:13,489 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 11:34:13,840 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 11:34:14,172 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 11:34:14,484 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 11:34:14,775 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:34:15,053 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:34:15,336 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:34:17,425 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 125 [2021-07-10 11:34:17,971 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 129 [2021-07-10 11:34:18,448 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 127 [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:34:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:34:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:34:22,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-07-10 11:34:22,323 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:34:22,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:34:22,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1671093307, now seen corresponding path program 18 times [2021-07-10 11:34:22,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:34:22,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019446489] [2021-07-10 11:34:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:34:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:34:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 324 proven. 2126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:34:24,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:34:24,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019446489] [2021-07-10 11:34:24,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019446489] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:34:24,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570291817] [2021-07-10 11:34:24,186 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:34:24,386 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 52 check-sat command(s) [2021-07-10 11:34:24,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:34:24,390 WARN L261 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 289 conjunts are in the unsatisfiable core [2021-07-10 11:34:24,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:34:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:34:29,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570291817] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:34:29,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:34:29,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 78] total 138 [2021-07-10 11:34:29,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552390368] [2021-07-10 11:34:29,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 139 states [2021-07-10 11:34:29,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:34:29,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2021-07-10 11:34:29,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1934, Invalid=17248, Unknown=0, NotChecked=0, Total=19182 [2021-07-10 11:34:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:34:29,646 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:34:29,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 139 states, 139 states have (on average 2.2158273381294964) internal successors, (308), 138 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:34:29,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:34:29,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:34:29,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:34:31,915 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:34:32,258 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:34:32,653 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-10 11:34:33,035 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-10 11:34:33,447 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-10 11:34:33,887 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-10 11:34:34,354 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-10 11:34:34,861 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-10 11:34:35,462 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-10 11:34:36,100 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 133 [2021-07-10 11:34:36,853 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 137 [2021-07-10 11:34:37,500 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 135 [2021-07-10 11:34:38,239 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 137 [2021-07-10 11:34:38,900 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 135 [2021-07-10 11:34:39,516 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 136 [2021-07-10 11:34:40,008 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 134 [2021-07-10 11:34:40,469 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 11:34:40,868 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 11:34:41,249 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 11:34:41,653 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 11:34:41,988 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 11:34:42,309 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 11:34:42,618 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:34:42,899 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:34:43,161 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:34:43,411 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-10 11:34:45,472 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 132 [2021-07-10 11:34:46,052 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 136 [2021-07-10 11:34:46,522 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 134 [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:34:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:34:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:34:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:34:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:34:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:34:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:34:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:34:50,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-07-10 11:34:50,689 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:34:50,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:34:50,689 INFO L82 PathProgramCache]: Analyzing trace with hash -429400833, now seen corresponding path program 19 times [2021-07-10 11:34:50,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:34:50,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415244568] [2021-07-10 11:34:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:34:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:34:52,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 361 proven. 2377 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:34:52,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:34:52,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415244568] [2021-07-10 11:34:52,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415244568] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:34:52,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85983553] [2021-07-10 11:34:52,814 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:34:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:34:52,916 WARN L261 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 305 conjunts are in the unsatisfiable core [2021-07-10 11:34:52,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:34:58,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 0 proven. 2738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:34:58,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85983553] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:34:58,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:34:58,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 82] total 145 [2021-07-10 11:34:58,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422057780] [2021-07-10 11:34:58,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 146 states [2021-07-10 11:34:58,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:34:58,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2021-07-10 11:34:58,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2123, Invalid=19047, Unknown=0, NotChecked=0, Total=21170 [2021-07-10 11:34:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:34:58,171 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:34:58,172 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 146 states, 146 states have (on average 2.219178082191781) internal successors, (324), 145 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:34:58,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:35:00,611 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-10 11:35:01,015 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-10 11:35:01,463 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-10 11:35:01,931 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-10 11:35:02,424 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-07-10 11:35:02,928 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2021-07-10 11:35:03,467 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-07-10 11:35:04,056 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 126 [2021-07-10 11:35:04,756 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2021-07-10 11:35:05,419 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 140 [2021-07-10 11:35:06,164 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 144 [2021-07-10 11:35:06,955 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 142 [2021-07-10 11:35:07,925 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 144 [2021-07-10 11:35:08,676 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 142 [2021-07-10 11:35:09,335 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 143 [2021-07-10 11:35:09,867 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 141 [2021-07-10 11:35:10,363 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-10 11:35:10,848 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-10 11:35:11,277 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-10 11:35:11,692 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-10 11:35:12,099 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-10 11:35:12,479 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 11:35:12,840 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 11:35:13,167 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 11:35:13,480 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 11:35:13,761 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-10 11:35:14,064 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-07-10 11:35:16,045 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 139 [2021-07-10 11:35:16,709 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 143 [2021-07-10 11:35:17,290 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 141 [2021-07-10 11:35:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:35:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:35:21,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:35:21,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable168 [2021-07-10 11:35:21,849 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:35:21,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:35:21,849 INFO L82 PathProgramCache]: Analyzing trace with hash 101014211, now seen corresponding path program 20 times [2021-07-10 11:35:21,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:35:21,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032721597] [2021-07-10 11:35:21,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:35:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:35:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 400 proven. 2642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:35:23,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:35:23,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032721597] [2021-07-10 11:35:23,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032721597] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:35:23,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551338037] [2021-07-10 11:35:23,966 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:35:24,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 11:35:24,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:35:24,050 WARN L261 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 321 conjunts are in the unsatisfiable core [2021-07-10 11:35:24,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:35:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 3042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:35:30,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551338037] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:35:30,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:35:30,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 86] total 152 [2021-07-10 11:35:30,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796089709] [2021-07-10 11:35:30,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 153 states [2021-07-10 11:35:30,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:35:30,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2021-07-10 11:35:30,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2325, Invalid=20931, Unknown=0, NotChecked=0, Total=23256 [2021-07-10 11:35:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:35:30,509 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:35:30,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 153 states, 153 states have (on average 2.2222222222222223) internal successors, (340), 152 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:35:30,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:35:30,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:35:32,879 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:35:33,251 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:35:33,644 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-10 11:35:34,062 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-10 11:35:34,533 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-10 11:35:35,008 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-10 11:35:35,546 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-10 11:35:36,078 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-10 11:35:36,599 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-10 11:35:37,217 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2021-07-10 11:35:37,917 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140 [2021-07-10 11:35:38,598 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 147 [2021-07-10 11:35:39,427 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 151 [2021-07-10 11:35:40,228 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 149 [2021-07-10 11:35:41,089 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 151 [2021-07-10 11:35:41,822 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 149 [2021-07-10 11:35:42,531 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 150 [2021-07-10 11:35:43,097 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 148 [2021-07-10 11:35:43,681 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-10 11:35:44,175 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-10 11:35:44,635 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 11:35:45,071 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 11:35:45,476 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 11:35:45,865 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 11:35:46,245 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 11:35:46,618 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 11:35:46,951 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:35:47,444 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:35:49,941 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 146 [2021-07-10 11:35:50,615 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 150 [2021-07-10 11:35:51,177 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 148 [2021-07-10 11:35:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:35:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:35:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:35:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:35:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:35:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:35:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:35:56,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable169 [2021-07-10 11:35:56,057 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:35:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:35:56,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1539478919, now seen corresponding path program 21 times [2021-07-10 11:35:56,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:35:56,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226097266] [2021-07-10 11:35:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:35:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:35:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 441 proven. 2921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:35:58,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:35:58,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226097266] [2021-07-10 11:35:58,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226097266] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:35:58,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801920620] [2021-07-10 11:35:58,275 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:35:58,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 61 check-sat command(s) [2021-07-10 11:35:58,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:35:58,573 WARN L261 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 337 conjunts are in the unsatisfiable core [2021-07-10 11:35:58,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:36:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 0 proven. 3362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:36:05,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801920620] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:36:05,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:36:05,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 90] total 159 [2021-07-10 11:36:05,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508658838] [2021-07-10 11:36:05,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 160 states [2021-07-10 11:36:05,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:36:05,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2021-07-10 11:36:05,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2532, Invalid=22908, Unknown=0, NotChecked=0, Total=25440 [2021-07-10 11:36:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:36:05,276 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:36:05,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 160 states, 160 states have (on average 2.225) internal successors, (356), 159 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:36:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:36:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:36:05,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:36:05,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:36:05,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:36:05,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:36:07,750 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-07-10 11:36:08,133 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-10 11:36:08,529 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-10 11:36:08,949 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-10 11:36:09,435 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-10 11:36:09,904 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-07-10 11:36:10,426 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2021-07-10 11:36:10,959 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-07-10 11:36:11,552 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 126 [2021-07-10 11:36:12,188 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2021-07-10 11:36:12,827 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 140 [2021-07-10 11:36:13,540 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 147 [2021-07-10 11:36:14,238 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 154 [2021-07-10 11:36:15,119 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 158 [2021-07-10 11:36:15,855 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 156 [2021-07-10 11:36:16,704 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 158 [2021-07-10 11:36:17,438 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 156 [2021-07-10 11:36:18,174 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 157 [2021-07-10 11:36:18,754 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 155 [2021-07-10 11:36:19,328 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-10 11:36:19,835 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-10 11:36:20,304 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-10 11:36:20,767 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-10 11:36:21,217 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-10 11:36:21,632 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-10 11:36:22,034 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-10 11:36:22,406 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 11:36:22,770 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 11:36:23,103 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 11:36:23,408 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 11:36:23,699 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-10 11:36:26,108 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 153 [2021-07-10 11:36:26,806 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 157 [2021-07-10 11:36:27,436 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 155 [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:36:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:36:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:36:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:36:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:36:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:36:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:36:32,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-10 11:36:32,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:36:32,679 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:36:32,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:36:32,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1963012789, now seen corresponding path program 22 times [2021-07-10 11:36:32,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:36:32,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325561279] [2021-07-10 11:36:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:36:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:36:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 484 proven. 3214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:36:35,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:36:35,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325561279] [2021-07-10 11:36:35,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325561279] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:36:35,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361260950] [2021-07-10 11:36:35,079 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:36:35,165 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 11:36:35,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:36:35,168 WARN L261 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 333 conjunts are in the unsatisfiable core [2021-07-10 11:36:35,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:36:43,264 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-10 11:36:43,543 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-07-10 11:36:46,527 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-07-10 11:36:47,959 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:36:48,802 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:36:49,018 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:36:50,417 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:36:50,752 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:36:53,125 WARN L205 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-07-10 11:36:54,259 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2021-07-10 11:36:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 0 proven. 3698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:36:54,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361260950] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:36:54,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:36:54,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 94] total 166 [2021-07-10 11:36:54,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761678331] [2021-07-10 11:36:54,733 INFO L462 AbstractCegarLoop]: Interpolant automaton has 167 states [2021-07-10 11:36:54,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:36:54,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2021-07-10 11:36:54,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2540, Invalid=25182, Unknown=0, NotChecked=0, Total=27722 [2021-07-10 11:36:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:36:54,734 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:36:54,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 167 states, 167 states have (on average 2.2275449101796405) internal successors, (372), 166 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2021-07-10 11:36:54,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:36:57,718 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:36:58,136 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:36:58,594 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-10 11:36:59,064 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-10 11:36:59,565 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-10 11:37:00,106 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-10 11:37:00,677 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-10 11:37:01,255 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-10 11:37:01,875 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-10 11:37:02,520 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2021-07-10 11:37:03,186 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140 [2021-07-10 11:37:03,891 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 147 [2021-07-10 11:37:04,692 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 154 [2021-07-10 11:37:05,480 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 161 [2021-07-10 11:37:06,492 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 165 [2021-07-10 11:37:07,352 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 163 [2021-07-10 11:37:08,328 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 165 [2021-07-10 11:37:09,157 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 163 [2021-07-10 11:37:09,982 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 164 [2021-07-10 11:37:10,619 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 162 [2021-07-10 11:37:11,284 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-10 11:37:11,845 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-10 11:37:12,386 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-10 11:37:12,900 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-10 11:37:13,386 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 11:37:13,859 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 11:37:14,305 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 11:37:14,729 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 11:37:15,147 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 11:37:15,524 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 11:37:15,881 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:37:16,222 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:37:16,545 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:37:19,488 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 160 [2021-07-10 11:37:20,277 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 164 [2021-07-10 11:37:20,941 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 162 [2021-07-10 11:37:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:37:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-10 11:37:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-07-10 11:37:28,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable171 [2021-07-10 11:37:28,069 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:37:28,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:37:28,070 INFO L82 PathProgramCache]: Analyzing trace with hash 891896335, now seen corresponding path program 23 times [2021-07-10 11:37:28,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:37:28,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106350605] [2021-07-10 11:37:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:37:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:37:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 529 proven. 3521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:37:30,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:37:30,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106350605] [2021-07-10 11:37:30,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106350605] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:37:30,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971996410] [2021-07-10 11:37:30,616 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:37:30,831 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2021-07-10 11:37:30,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:37:30,835 WARN L261 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 369 conjunts are in the unsatisfiable core [2021-07-10 11:37:30,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:37:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 0 proven. 4050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:37:39,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971996410] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:37:39,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:37:39,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 98] total 173 [2021-07-10 11:37:39,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232799182] [2021-07-10 11:37:39,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 174 states [2021-07-10 11:37:39,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:37:39,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2021-07-10 11:37:39,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2979, Invalid=27123, Unknown=0, NotChecked=0, Total=30102 [2021-07-10 11:37:39,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:37:39,061 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:37:39,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 174 states, 174 states have (on average 2.2298850574712645) internal successors, (388), 173 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2021-07-10 11:37:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:37:41,645 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-10 11:37:42,021 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-10 11:37:42,426 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-10 11:37:42,862 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-10 11:37:43,371 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-10 11:37:43,879 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-10 11:37:44,397 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-10 11:37:44,950 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-10 11:37:45,517 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-10 11:37:46,131 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2021-07-10 11:37:46,819 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140 [2021-07-10 11:37:47,483 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 147 [2021-07-10 11:37:48,175 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 154 [2021-07-10 11:37:48,954 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 161 [2021-07-10 11:37:49,745 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 168 [2021-07-10 11:37:50,753 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 172 [2021-07-10 11:37:51,594 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 170 [2021-07-10 11:37:52,579 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 172 [2021-07-10 11:37:53,322 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 170 [2021-07-10 11:37:54,068 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 171 [2021-07-10 11:37:54,659 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 169 [2021-07-10 11:37:55,265 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 167 [2021-07-10 11:37:55,785 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-10 11:37:56,282 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-10 11:37:56,761 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-10 11:37:57,284 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-10 11:37:57,762 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-10 11:37:58,207 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-10 11:37:58,642 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-10 11:37:59,040 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-10 11:37:59,427 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-10 11:37:59,795 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-10 11:38:00,135 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-10 11:38:00,456 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-10 11:38:00,805 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-10 11:38:03,459 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 167 [2021-07-10 11:38:04,281 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 171 [2021-07-10 11:38:04,931 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 169 [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:38:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:38:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:38:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-10 11:38:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-07-10 11:38:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2021-07-10 11:38:11,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:38:11,468 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:38:11,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:38:11,468 INFO L82 PathProgramCache]: Analyzing trace with hash -306105389, now seen corresponding path program 24 times [2021-07-10 11:38:11,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:38:11,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223283662] [2021-07-10 11:38:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:38:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:38:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 576 proven. 3842 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:38:14,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:38:14,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223283662] [2021-07-10 11:38:14,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223283662] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:38:14,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392136593] [2021-07-10 11:38:14,179 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:38:14,626 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 70 check-sat command(s) [2021-07-10 11:38:14,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 11:38:14,635 WARN L261 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 385 conjunts are in the unsatisfiable core [2021-07-10 11:38:14,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:38:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 0 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:38:23,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392136593] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:38:23,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 11:38:23,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 102] total 180 [2021-07-10 11:38:23,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477003488] [2021-07-10 11:38:23,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 181 states [2021-07-10 11:38:23,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 11:38:23,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2021-07-10 11:38:23,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3213, Invalid=29367, Unknown=0, NotChecked=0, Total=32580 [2021-07-10 11:38:23,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:38:23,565 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 11:38:23,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 181 states, 181 states have (on average 2.2320441988950277) internal successors, (404), 180 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2021-07-10 11:38:23,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2021-07-10 11:38:23,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2021-07-10 11:38:23,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 11:38:26,191 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-07-10 11:38:26,603 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-10 11:38:27,022 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-10 11:38:27,471 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-10 11:38:27,949 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-10 11:38:28,451 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-07-10 11:38:28,992 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2021-07-10 11:38:29,543 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-07-10 11:38:30,124 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 126 [2021-07-10 11:38:30,741 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2021-07-10 11:38:31,368 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 140 [2021-07-10 11:38:32,065 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 147 [2021-07-10 11:38:32,765 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 154 [2021-07-10 11:38:33,495 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 161 [2021-07-10 11:38:34,325 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 168 [2021-07-10 11:38:35,152 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 175 [2021-07-10 11:38:36,206 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 179 [2021-07-10 11:38:37,134 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 177 [2021-07-10 11:38:38,132 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 179 [2021-07-10 11:38:39,010 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 177 [2021-07-10 11:38:39,900 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 178 [2021-07-10 11:38:40,582 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 176 [2021-07-10 11:38:41,254 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-07-10 11:38:41,857 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2021-07-10 11:38:42,443 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 160 [2021-07-10 11:38:43,036 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-10 11:38:43,563 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-10 11:38:44,058 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-10 11:38:44,533 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-10 11:38:44,991 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-10 11:38:45,418 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-10 11:38:45,824 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-10 11:38:46,209 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-10 11:38:46,623 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-10 11:38:46,965 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-10 11:38:47,287 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-10 11:38:47,587 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-10 11:38:50,317 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 174 [2021-07-10 11:38:51,145 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 178 [2021-07-10 11:38:51,854 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 176 [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-10 11:38:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2021-07-10 11:38:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2021-07-10 11:38:58,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable230 [2021-07-10 11:38:58,803 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 11:38:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 11:38:58,803 INFO L82 PathProgramCache]: Analyzing trace with hash 777380503, now seen corresponding path program 25 times [2021-07-10 11:38:58,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 11:38:58,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554859976] [2021-07-10 11:38:58,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 11:38:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:39:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4802 backedges. 625 proven. 4177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 11:39:01,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 11:39:01,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554859976] [2021-07-10 11:39:01,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554859976] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 11:39:01,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063495640] [2021-07-10 11:39:01,694 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 11:39:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 11:39:01,796 WARN L261 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 378 conjunts are in the unsatisfiable core [2021-07-10 11:39:01,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 11:39:13,684 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-07-10 11:39:14,623 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2021-07-10 11:39:16,634 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:39:17,432 WARN L205 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:39:17,584 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2021-07-10 11:39:18,013 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:39:19,084 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2021-07-10 11:39:19,195 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-10 11:39:20,344 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2021-07-10 11:39:21,419 WARN L205 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-10 11:39:22,421 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:39:22,908 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:39:23,028 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:39:23,244 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:39:23,379 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:39:23,858 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-10 11:39:55,052 WARN L205 SmtUtils]: Spent 30.95 s on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2021-07-10 11:40:14,819 WARN L205 SmtUtils]: Spent 19.77 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:40:33,248 WARN L205 SmtUtils]: Spent 18.43 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-10 11:42:03,693 WARN L205 SmtUtils]: Spent 1.51 m on a formula simplification. DAG size of input: 75 DAG size of output: 75 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown