/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-NewStatesSleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:40:59,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:40:59,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:40:59,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 11:40:59,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 11:40:59,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 11:40:59,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 11:40:59,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 11:40:59,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 11:40:59,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 11:40:59,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 11:40:59,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 11:40:59,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 11:40:59,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 11:40:59,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 11:40:59,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 11:40:59,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 11:40:59,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:40:59,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:40:59,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:40:59,226 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-NewStatesSleep-NoLbe-Random521.epf [2021-07-01 11:40:59,241 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:40:59,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:40:59,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:40:59,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:40:59,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:40:59,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:40:59,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:40:59,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:40:59,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:40:59,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:40:59,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 11:40:59,245 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:40:59,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:40:59,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:40:59,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:40:59,497 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:40:59,501 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:40:59,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert10.bpl [2021-07-01 11:40:59,502 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert10.bpl' [2021-07-01 11:40:59,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:40:59,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:40:59,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:59,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:40:59,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:40:59,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:59,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:40:59,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:40:59,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:40:59,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/1) ... [2021-07-01 11:40:59,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:40:59,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:40:59,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:40:59,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:40:59,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (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 [2021-07-01 11:40:59,620 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:40:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:40:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:40:59,621 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:40:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:40:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:40:59,622 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:40:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:40:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:40:59,623 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 11:40:59,772 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:40:59,772 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 11:40:59,773 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 11:40:59,774 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:40:59 BoogieIcfgContainer [2021-07-01 11:40:59,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:40:59,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:40:59,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:40:59,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:40:59,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:59" (1/2) ... [2021-07-01 11:40:59,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44831d8f and model type bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:40:59, skipping insertion in model container [2021-07-01 11:40:59,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:40:59" (2/2) ... [2021-07-01 11:40:59,779 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert10.bpl [2021-07-01 11:40:59,782 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:40:59,782 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:40:59,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:40:59,783 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:40:59,847 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:40:59,862 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 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 [2021-07-01 11:40:59,958 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:40:59,958 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:40:59,958 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:40:59,958 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:40:59,959 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:40:59,959 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:40:59,959 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:40:59,959 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 11:41:00,053 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:00,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:00,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1350000758, now seen corresponding path program 1 times [2021-07-01 11:41:00,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:00,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559594159] [2021-07-01 11:41:00,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:41:00,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:00,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559594159] [2021-07-01 11:41:00,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559594159] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:41:00,207 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:41:00,207 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 11:41:00,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213647146] [2021-07-01 11:41:00,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 11:41:00,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:00,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 11:41:00,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 11:41:00,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:00,219 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:00,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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) [2021-07-01 11:41:00,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:00,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:41:00,268 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:00,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:00,268 INFO L82 PathProgramCache]: Analyzing trace with hash 201004339, now seen corresponding path program 1 times [2021-07-01 11:41:00,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:00,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755129136] [2021-07-01 11:41:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:41:00,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:00,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755129136] [2021-07-01 11:41:00,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755129136] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:41:00,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:41:00,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:41:00,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552117528] [2021-07-01 11:41:00,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:41:00,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:00,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:41:00,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:41:00,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:00,302 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:00,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:00,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:00,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:00,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:00,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:41:00,997 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:00,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:00,998 INFO L82 PathProgramCache]: Analyzing trace with hash -730135946, now seen corresponding path program 1 times [2021-07-01 11:41:00,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:00,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948072916] [2021-07-01 11:41:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:41:01,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:01,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948072916] [2021-07-01 11:41:01,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948072916] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:01,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916984025] [2021-07-01 11:41:01,074 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 [2021-07-01 11:41:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:01,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-01 11:41:01,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:41:01,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916984025] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:01,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:01,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-07-01 11:41:01,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556605281] [2021-07-01 11:41:01,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:41:01,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:01,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:41:01,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:41:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:01,236 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:01,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:01,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:01,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:01,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:01,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:01,981 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:01,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:01,982 INFO L82 PathProgramCache]: Analyzing trace with hash 445300767, now seen corresponding path program 1 times [2021-07-01 11:41:01,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:01,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883568936] [2021-07-01 11:41:01,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:02,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:41:02,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:02,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883568936] [2021-07-01 11:41:02,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883568936] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:02,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884214209] [2021-07-01 11:41:02,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:02,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-01 11:41:02,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:41:02,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884214209] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:02,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:02,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 11:41:02,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017275405] [2021-07-01 11:41:02,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 11:41:02,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:02,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 11:41:02,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 11:41:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:02,289 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:02,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:02,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:02,857 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:02,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1942721735, now seen corresponding path program 1 times [2021-07-01 11:41:02,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:02,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705405272] [2021-07-01 11:41:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 11:41:02,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:02,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705405272] [2021-07-01 11:41:02,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705405272] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:02,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819300336] [2021-07-01 11:41:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 11:41:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:02,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-01 11:41:02,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 11:41:03,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819300336] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:03,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:03,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 12 [2021-07-01 11:41:03,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599545192] [2021-07-01 11:41:03,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-01 11:41:03,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:03,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-01 11:41:03,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-07-01 11:41:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:03,082 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:03,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:03,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:04,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:04,120 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:04,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1240268392, now seen corresponding path program 1 times [2021-07-01 11:41:04,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:04,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409318528] [2021-07-01 11:41:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-01 11:41:04,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:04,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409318528] [2021-07-01 11:41:04,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409318528] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:04,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007234629] [2021-07-01 11:41:04,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 11:41:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:04,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-01 11:41:04,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-01 11:41:04,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007234629] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:04,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:04,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-01 11:41:04,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176503442] [2021-07-01 11:41:04,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:41:04,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:04,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:41:04,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:41:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:04,363 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:04,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:04,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:04,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:04,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:04,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:04,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:04,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:04,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-01 11:41:04,997 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:04,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:04,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1667282536, now seen corresponding path program 1 times [2021-07-01 11:41:04,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:04,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633610584] [2021-07-01 11:41:04,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-07-01 11:41:05,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:05,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633610584] [2021-07-01 11:41:05,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633610584] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:05,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605256738] [2021-07-01 11:41:05,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 11:41:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:05,139 WARN L261 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-01 11:41:05,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:05,270 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 11:41:05,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605256738] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:05,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:05,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 14 [2021-07-01 11:41:05,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148597390] [2021-07-01 11:41:05,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-01 11:41:05,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:05,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-01 11:41:05,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-07-01 11:41:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:05,272 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:05,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 14 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:05,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:05,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:05,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:05,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:05,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:05,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:05,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:06,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:06,271 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:06,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:06,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1189268443, now seen corresponding path program 2 times [2021-07-01 11:41:06,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:06,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162307316] [2021-07-01 11:41:06,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-01 11:41:06,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:06,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162307316] [2021-07-01 11:41:06,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162307316] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:06,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204247105] [2021-07-01 11:41:06,393 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 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 [2021-07-01 11:41:06,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-01 11:41:06,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-01 11:41:06,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-01 11:41:06,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-01 11:41:06,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204247105] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:06,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:06,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-07-01 11:41:06,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424769422] [2021-07-01 11:41:06,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 11:41:06,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:06,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 11:41:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-01 11:41:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:06,564 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:06,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:06,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:07,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:07,753 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:07,753 INFO L82 PathProgramCache]: Analyzing trace with hash -232315105, now seen corresponding path program 3 times [2021-07-01 11:41:07,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:07,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494095646] [2021-07-01 11:41:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-01 11:41:07,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:07,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494095646] [2021-07-01 11:41:07,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494095646] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:07,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667191167] [2021-07-01 11:41:07,827 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 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 [2021-07-01 11:41:07,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-01 11:41:07,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-01 11:41:07,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-01 11:41:07,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-01 11:41:07,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667191167] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:07,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:07,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-07-01 11:41:07,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110152826] [2021-07-01 11:41:07,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 11:41:07,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:07,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 11:41:07,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-01 11:41:07,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:07,956 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:07,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:07,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:07,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:07,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:07,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:11,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-01 11:41:11,649 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:11,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:11,650 INFO L82 PathProgramCache]: Analyzing trace with hash -520204525, now seen corresponding path program 4 times [2021-07-01 11:41:11,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:11,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348227285] [2021-07-01 11:41:11,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:11,747 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-01 11:41:11,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:11,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348227285] [2021-07-01 11:41:11,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348227285] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:11,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104648028] [2021-07-01 11:41:11,748 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 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 [2021-07-01 11:41:11,786 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-01 11:41:11,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-01 11:41:11,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-01 11:41:11,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-01 11:41:11,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104648028] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:11,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:11,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-07-01 11:41:11,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999952979] [2021-07-01 11:41:11,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 11:41:11,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:11,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 11:41:11,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-01 11:41:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:11,889 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:11,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:11,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:11,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:11,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:11,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:11,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:11,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:11,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:11,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:11,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:11,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:16,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 11:41:16,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:16,398 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:16,398 INFO L82 PathProgramCache]: Analyzing trace with hash -128974257, now seen corresponding path program 1 times [2021-07-01 11:41:16,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:16,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821968093] [2021-07-01 11:41:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:41:16,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:16,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821968093] [2021-07-01 11:41:16,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821968093] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:16,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035073945] [2021-07-01 11:41:16,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 11:41:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:16,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-01 11:41:16,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:16,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:41:16,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035073945] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:16,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:16,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-07-01 11:41:16,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016611833] [2021-07-01 11:41:16,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-01 11:41:16,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:16,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-01 11:41:16,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=91, Unknown=0, NotChecked=0, Total=156 [2021-07-01 11:41:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:16,646 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:16,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-01 11:41:16,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 11:41:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:34,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 11:41:34,074 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:41:34,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:41:34,075 INFO L82 PathProgramCache]: Analyzing trace with hash -771062095, now seen corresponding path program 1 times [2021-07-01 11:41:34,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:41:34,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728957858] [2021-07-01 11:41:34,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:41:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 11:41:34,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:41:34,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728957858] [2021-07-01 11:41:34,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728957858] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:34,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835341903] [2021-07-01 11:41:34,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 11:41:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:41:34,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-01 11:41:34,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 11:41:34,297 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 11:41:34,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835341903] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 11:41:34,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 11:41:34,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-07-01 11:41:34,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402271775] [2021-07-01 11:41:34,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 11:41:34,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:41:34,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 11:41:34,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-07-01 11:41:34,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:41:34,299 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:41:34,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:41:34,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 11:41:34,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:41:34,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 11:41:34,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.