/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-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 10:33:16,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 10:33:16,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 10:33:16,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 10:33:16,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 10:33:17,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 10:33:17,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 10:33:17,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 10:33:17,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 10:33:17,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 10:33:17,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 10:33:17,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 10:33:17,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 10:33:17,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 10:33:17,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 10:33:17,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 10:33:17,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 10:33:17,037 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-DelaySleep-NoLbe-Lockstep.epf [2021-07-01 10:33:17,071 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 10:33:17,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 10:33:17,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 10:33:17,072 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 10:33:17,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 10:33:17,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 10:33:17,075 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 10:33:17,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 10:33:17,075 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 10:33:17,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 10:33:17,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 10:33:17,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 10:33:17,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 10:33:17,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 10:33:17,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 10:33:17,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 10:33:17,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 10:33:17,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 10:33:17,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 10:33:17,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 10:33:17,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 10:33:17,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 10:33:17,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 10:33:17,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:33:17,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 10:33:17,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 10:33:17,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 10:33:17,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 10:33:17,097 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-01 10:33:17,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 10:33:17,098 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 10:33:17,098 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 10:33:17,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 10:33:17,098 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-01 10:33:17,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 10:33:17,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 10:33:17,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 10:33:17,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 10:33:17,459 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 10:33:17,460 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 10:33:17,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl [2021-07-01 10:33:17,462 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-serverassert07.bpl' [2021-07-01 10:33:17,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 10:33:17,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 10:33:17,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 10:33:17,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 10:33:17,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 10:33:17,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 10:33:17,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 10:33:17,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 10:33:17,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 10:33:17,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/1) ... [2021-07-01 10:33:17,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 10:33:17,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 10:33:17,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 10:33:17,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 10:33:17,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (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 10:33:17,630 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 10:33:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 10:33:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 10:33:17,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 10:33:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 10:33:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 10:33:17,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 10:33:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 10:33:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 10:33:17,634 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 10:33:17,812 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 10:33:17,813 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-01 10:33:17,813 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 10:33:17,815 INFO L202 PluginConnector]: Adding new model bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:17 BoogieIcfgContainer [2021-07-01 10:33:17,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 10:33:17,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 10:33:17,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 10:33:17,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 10:33:17,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:33:17" (1/2) ... [2021-07-01 10:33:17,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a5062c and model type bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:33:17, skipping insertion in model container [2021-07-01 10:33:17,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-serverassert07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:33:17" (2/2) ... [2021-07-01 10:33:17,821 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-serverassert07.bpl [2021-07-01 10:33:17,826 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 10:33:17,826 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 10:33:17,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 10:33:17,827 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 10:33:17,860 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 10:33:17,888 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 10:33:17,949 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:33:17,950 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:33:17,950 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:33:17,950 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:33:17,950 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:33:17,950 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:33:17,950 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:33:17,950 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ServerThreadThread1of1ForFork0======== [2021-07-01 10:33:18,032 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:18,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:18,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1570637902, now seen corresponding path program 1 times [2021-07-01 10:33:18,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:18,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920649842] [2021-07-01 10:33:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:18,237 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 10:33:18,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:18,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920649842] [2021-07-01 10:33:18,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920649842] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:33:18,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:33:18,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 10:33:18,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909621585] [2021-07-01 10:33:18,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 10:33:18,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:18,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 10:33:18,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-01 10:33:18,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:18,270 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:18,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 10:33:18,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:18,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:18,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 10:33:18,397 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:18,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:18,402 INFO L82 PathProgramCache]: Analyzing trace with hash 660452895, now seen corresponding path program 1 times [2021-07-01 10:33:18,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:18,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089494984] [2021-07-01 10:33:18,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:18,450 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 10:33:18,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:18,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089494984] [2021-07-01 10:33:18,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089494984] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:33:18,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:33:18,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:33:18,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822895993] [2021-07-01 10:33:18,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:33:18,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:18,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:33:18,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:33:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:18,459 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:18,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 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 10:33:18,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:18,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:18,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 10:33:18,954 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:18,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:18,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1528522179, now seen corresponding path program 1 times [2021-07-01 10:33:18,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:18,955 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397376688] [2021-07-01 10:33:18,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:19,014 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 10:33:19,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:19,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397376688] [2021-07-01 10:33:19,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397376688] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:19,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208252905] [2021-07-01 10:33:19,015 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 10:33:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:19,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-01 10:33:19,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:19,178 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 10:33:19,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208252905] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:19,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:19,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-07-01 10:33:19,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598822277] [2021-07-01 10:33:19,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 10:33:19,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:19,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 10:33:19,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-07-01 10:33:19,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:19,184 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:19,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 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 10:33:19,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:19,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:19,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:19,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:19,725 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:19,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:19,726 INFO L82 PathProgramCache]: Analyzing trace with hash 319448649, now seen corresponding path program 1 times [2021-07-01 10:33:19,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:19,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360566223] [2021-07-01 10:33:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:19,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:19,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360566223] [2021-07-01 10:33:19,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360566223] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:19,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838697281] [2021-07-01 10:33:19,799 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 10:33:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:19,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-01 10:33:19,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:20,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838697281] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:20,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:20,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-07-01 10:33:20,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612001154] [2021-07-01 10:33:20,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 10:33:20,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:20,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 10:33:20,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-01 10:33:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:20,045 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:20,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 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 10:33:20,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:20,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:20,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:20,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:20,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:20,480 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:20,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1899199384, now seen corresponding path program 1 times [2021-07-01 10:33:20,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:20,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218444977] [2021-07-01 10:33:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:20,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:20,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218444977] [2021-07-01 10:33:20,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218444977] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:20,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332952915] [2021-07-01 10:33:20,563 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 10:33:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:20,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-01 10:33:20,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 10:33:20,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332952915] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:20,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:20,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 12 [2021-07-01 10:33:20,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869737756] [2021-07-01 10:33:20,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-01 10:33:20,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:20,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-01 10:33:20,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-07-01 10:33:20,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:20,718 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:20,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 10:33:20,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:20,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:20,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:20,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:20,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:21,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:21,497 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:21,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1648675246, now seen corresponding path program 1 times [2021-07-01 10:33:21,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:21,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920896366] [2021-07-01 10:33:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:21,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:21,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920896366] [2021-07-01 10:33:21,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920896366] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:21,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112834960] [2021-07-01 10:33:21,590 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 10:33:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:21,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-01 10:33:21,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:21,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112834960] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:21,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:21,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-01 10:33:21,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518769172] [2021-07-01 10:33:21,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 10:33:21,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:21,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 10:33:21,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-01 10:33:21,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:21,711 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:21,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 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 10:33:21,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:21,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:21,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:21,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:21,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:21,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:22,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:22,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-01 10:33:22,245 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:22,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:22,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1007545731, now seen corresponding path program 1 times [2021-07-01 10:33:22,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:22,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479365356] [2021-07-01 10:33:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 10:33:22,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:22,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479365356] [2021-07-01 10:33:22,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479365356] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:22,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690147359] [2021-07-01 10:33:22,352 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 10:33:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:22,395 WARN L261 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-01 10:33:22,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:22,531 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 10:33:22,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690147359] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:22,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:22,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 14 [2021-07-01 10:33:22,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932049030] [2021-07-01 10:33:22,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-01 10:33:22,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:22,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-01 10:33:22,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-07-01 10:33:22,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:22,533 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:22,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 10:33:22,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:22,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:22,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:22,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:22,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:22,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:22,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:23,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:23,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:23,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:23,913 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1849628994, now seen corresponding path program 1 times [2021-07-01 10:33:23,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:23,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342316291] [2021-07-01 10:33:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 10:33:24,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:24,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342316291] [2021-07-01 10:33:24,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342316291] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:24,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700134243] [2021-07-01 10:33:24,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 10:33:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:24,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-01 10:33:24,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-01 10:33:24,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700134243] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:24,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:24,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-07-01 10:33:24,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607110229] [2021-07-01 10:33:24,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 10:33:24,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:24,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 10:33:24,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-01 10:33:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:24,261 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:24,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 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 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:24,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:25,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:25,029 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:25,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:25,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1677675953, now seen corresponding path program 1 times [2021-07-01 10:33:25,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:25,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6122346] [2021-07-01 10:33:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:25,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:25,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6122346] [2021-07-01 10:33:25,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6122346] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:25,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871764566] [2021-07-01 10:33:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order 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 [2021-07-01 10:33:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:25,183 WARN L261 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-01 10:33:25,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:25,360 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:25,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871764566] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:25,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:25,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 16 [2021-07-01 10:33:25,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760957341] [2021-07-01 10:33:25,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-01 10:33:25,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:25,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-01 10:33:25,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-07-01 10:33:25,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:25,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:25,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 16 states have internal predecessors, (86), 0 states have call successors, (0), 0 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 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:25,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:25,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:28,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:28,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:28,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:28,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:28,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-01 10:33:28,833 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:28,833 INFO L82 PathProgramCache]: Analyzing trace with hash -511687509, now seen corresponding path program 1 times [2021-07-01 10:33:28,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:28,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13688799] [2021-07-01 10:33:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:28,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:28,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13688799] [2021-07-01 10:33:28,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13688799] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:28,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268755338] [2021-07-01 10:33:28,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:29,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-01 10:33:29,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:29,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268755338] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:29,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:29,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-07-01 10:33:29,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112219563] [2021-07-01 10:33:29,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-01 10:33:29,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:29,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-01 10:33:29,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-01 10:33:29,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:29,117 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:29,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 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 10:33:29,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:29,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:29,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:29,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:29,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:29,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:29,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:29,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:29,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:29,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:30,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:30,585 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:30,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:30,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1421619658, now seen corresponding path program 1 times [2021-07-01 10:33:30,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:30,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948984038] [2021-07-01 10:33:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:33:30,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:30,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948984038] [2021-07-01 10:33:30,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948984038] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:30,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562579855] [2021-07-01 10:33:30,724 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 10:33:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:30,758 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 75 conjunts are in the unsatisfiable core [2021-07-01 10:33:30,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 10:33:30,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562579855] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:30,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:30,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2021-07-01 10:33:30,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044585860] [2021-07-01 10:33:30,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-01 10:33:30,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:30,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-01 10:33:30,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-07-01 10:33:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:30,938 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:30,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.157894736842105) internal successors, (98), 18 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:30,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:42,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:33:42,291 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1184548008, now seen corresponding path program 1 times [2021-07-01 10:33:42,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:42,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372608983] [2021-07-01 10:33:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-01 10:33:42,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:42,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372608983] [2021-07-01 10:33:42,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372608983] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:42,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893676329] [2021-07-01 10:33:42,419 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 10:33:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:42,462 WARN L261 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 93 conjunts are in the unsatisfiable core [2021-07-01 10:33:42,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-01 10:33:42,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893676329] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:42,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:42,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-07-01 10:33:42,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468576610] [2021-07-01 10:33:42,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-01 10:33:42,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:42,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-01 10:33:42,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-01 10:33:42,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:42,618 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:42,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 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 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:42,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:33:48,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-01 10:33:48,542 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:33:48,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:33:48,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1835259346, now seen corresponding path program 1 times [2021-07-01 10:33:48,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:33:48,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209565845] [2021-07-01 10:33:48,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:33:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 66 proven. 52 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-01 10:33:48,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:33:48,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209565845] [2021-07-01 10:33:48,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209565845] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:48,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479498539] [2021-07-01 10:33:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 10:33:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:33:48,825 WARN L261 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 145 conjunts are in the unsatisfiable core [2021-07-01 10:33:48,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:33:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-01 10:33:49,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479498539] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:33:49,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:33:49,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 20 [2021-07-01 10:33:49,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862761843] [2021-07-01 10:33:49,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-01 10:33:49,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:33:49,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-01 10:33:49,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2021-07-01 10:33:49,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:33:49,253 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:33:49,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 6.190476190476191) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 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 10:33:49,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:33:49,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:34:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:34:37,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-01 10:34:38,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-07-01 10:34:38,041 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:34:38,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:34:38,041 INFO L82 PathProgramCache]: Analyzing trace with hash 235228641, now seen corresponding path program 1 times [2021-07-01 10:34:38,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:34:38,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942858218] [2021-07-01 10:34:38,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:34:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:34:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-01 10:34:38,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:34:38,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942858218] [2021-07-01 10:34:38,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942858218] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:34:38,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139271925] [2021-07-01 10:34:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 10:34:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:34:38,230 WARN L261 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 137 conjunts are in the unsatisfiable core [2021-07-01 10:34:38,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:34:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-01 10:34:38,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139271925] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:34:38,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:34:38,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-07-01 10:34:38,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60881488] [2021-07-01 10:34:38,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 10:34:38,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:34:38,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 10:34:38,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-07-01 10:34:38,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:34:38,386 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:34:38,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 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 10:34:38,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:34:38,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:34:38,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:34:38,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:34:38,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-01 10:34:38,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:35:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:35:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:35:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:35:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:35:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-01 10:35:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:35:05,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-01 10:35:05,418 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ServerThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:35:05,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:35:05,418 INFO L82 PathProgramCache]: Analyzing trace with hash 431426030, now seen corresponding path program 1 times [2021-07-01 10:35:05,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:35:05,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199669534] [2021-07-01 10:35:05,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:35:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:35:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 102 proven. 64 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-01 10:35:05,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:35:05,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199669534] [2021-07-01 10:35:05,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199669534] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:35:05,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467202104] [2021-07-01 10:35:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order 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 [2021-07-01 10:35:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:35:05,683 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 175 conjunts are in the unsatisfiable core [2021-07-01 10:35:05,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:35:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 163 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-01 10:35:05,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467202104] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:35:05,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:35:05,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 22 [2021-07-01 10:35:05,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351354072] [2021-07-01 10:35:05,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-01 10:35:05,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:35:05,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-01 10:35:05,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2021-07-01 10:35:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:35:05,960 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:35:05,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 6.608695652173913) internal successors, (152), 22 states have internal predecessors, (152), 0 states have call successors, (0), 0 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 10:35:05,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-01 10:35:05,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.