/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 23:59:25,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 23:59:25,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 23:59:25,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 23:59:25,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 23:59:25,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 23:59:25,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 23:59:25,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 23:59:25,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 23:59:25,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 23:59:25,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 23:59:25,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 23:59:25,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 23:59:25,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 23:59:25,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 23:59:25,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 23:59:25,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 23:59:25,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 23:59:25,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 23:59:25,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 23:59:25,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 23:59:25,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 23:59:25,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 23:59:25,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 23:59:25,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 23:59:25,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 23:59:25,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 23:59:25,665 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 23:59:25,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 23:59:25,666 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 23:59:25,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 23:59:25,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 23:59:25,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 23:59:25,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 23:59:25,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 23:59:25,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 23:59:25,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 23:59:25,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 23:59:25,669 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 23:59:25,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 23:59:25,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 23:59:25,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 23:59:25,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 23:59:25,919 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 23:59:25,920 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 23:59:25,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl [2021-06-13 23:59:25,954 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl' [2021-06-13 23:59:26,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 23:59:26,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 23:59:26,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 23:59:26,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 23:59:26,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 23:59:26,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 23:59:26,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 23:59:26,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 23:59:26,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 23:59:26,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... [2021-06-13 23:59:26,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 23:59:26,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 23:59:26,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 23:59:26,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 23:59:26,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 23:59:26,080 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 23:59:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 23:59:26,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 23:59:26,080 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 23:59:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 23:59:26,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 23:59:26,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 23:59:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 23:59:26,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 23:59:26,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-13 23:59:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-13 23:59:26,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-13 23:59:26,082 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 23:59:26,297 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 23:59:26,298 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 23:59:26,299 INFO L202 PluginConnector]: Adding new model queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:59:26 BoogieIcfgContainer [2021-06-13 23:59:26,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 23:59:26,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 23:59:26,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 23:59:26,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 23:59:26,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:59:26" (1/2) ... [2021-06-13 23:59:26,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f4fd03 and model type queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 11:59:26, skipping insertion in model container [2021-06-13 23:59:26,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:59:26" (2/2) ... [2021-06-13 23:59:26,309 INFO L111 eAbstractionObserver]: Analyzing ICFG queue-add-3-nl.wvr.bpl [2021-06-13 23:59:26,313 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 23:59:26,313 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 23:59:26,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 23:59:26,313 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 23:59:26,348 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-13 23:59:26,361 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-06-13 23:59:26,411 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 23:59:26,411 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 23:59:26,411 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 23:59:26,411 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 23:59:26,411 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 23:59:26,411 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 23:59:26,411 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 23:59:26,411 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 23:59:26,551 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:26,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:26,554 INFO L82 PathProgramCache]: Analyzing trace with hash -975072580, now seen corresponding path program 1 times [2021-06-13 23:59:26,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:26,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913959543] [2021-06-13 23:59:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 160 proven. 9 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-06-13 23:59:26,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:26,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913959543] [2021-06-13 23:59:26,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913959543] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:26,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112826164] [2021-06-13 23:59:26,796 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 [2021-06-13 23:59:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:26,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-13 23:59:26,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-06-13 23:59:27,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112826164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 23:59:27,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-13 23:59:27,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-13 23:59:27,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852457854] [2021-06-13 23:59:27,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 23:59:27,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:27,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 23:59:27,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-13 23:59:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:27,191 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:27,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:27,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:27,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:27,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-13 23:59:27,456 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:27,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:27,457 INFO L82 PathProgramCache]: Analyzing trace with hash -875540882, now seen corresponding path program 2 times [2021-06-13 23:59:27,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:27,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547792301] [2021-06-13 23:59:27,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:59:27,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:27,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547792301] [2021-06-13 23:59:27,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547792301] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:27,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903721049] [2021-06-13 23:59:27,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:27,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 23:59:27,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:59:27,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-13 23:59:27,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:27,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-13 23:59:27,754 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:27,755 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:27,757 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:27,757 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-13 23:59:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-13 23:59:27,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903721049] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:27,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:59:27,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11 [2021-06-13 23:59:27,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480300928] [2021-06-13 23:59:27,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 23:59:27,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:27,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 23:59:27,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-06-13 23:59:27,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:27,792 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:27,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:27,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:27,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:27,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:28,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:28,143 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:28,143 INFO L82 PathProgramCache]: Analyzing trace with hash 915350804, now seen corresponding path program 3 times [2021-06-13 23:59:28,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:28,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798999450] [2021-06-13 23:59:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:28,308 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 83 proven. 135 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-06-13 23:59:28,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:28,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798999450] [2021-06-13 23:59:28,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798999450] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:28,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343226942] [2021-06-13 23:59:28,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:28,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-06-13 23:59:28,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:59:28,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-13 23:59:28,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:28,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-06-13 23:59:28,533 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:28,534 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:28,535 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:28,535 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:3 [2021-06-13 23:59:28,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-06-13 23:59:28,615 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:28,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:28,617 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:28,619 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:4 [2021-06-13 23:59:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 43 proven. 84 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-06-13 23:59:28,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343226942] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:28,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:59:28,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-06-13 23:59:28,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984130358] [2021-06-13 23:59:28,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 23:59:28,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:28,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 23:59:28,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-06-13 23:59:28,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:28,660 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:28,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:28,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:28,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:28,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:29,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:29,193 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:29,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1038955414, now seen corresponding path program 4 times [2021-06-13 23:59:29,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:29,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980863171] [2021-06-13 23:59:29,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 238 proven. 242 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-06-13 23:59:29,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:29,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980863171] [2021-06-13 23:59:29,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980863171] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:29,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333438823] [2021-06-13 23:59:29,295 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:29,366 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 23:59:29,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:59:29,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-13 23:59:29,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 238 proven. 240 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-06-13 23:59:29,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333438823] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:29,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:59:29,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 8 [2021-06-13 23:59:29,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320354381] [2021-06-13 23:59:29,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 23:59:29,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:29,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 23:59:29,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-06-13 23:59:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:29,591 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:29,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:29,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:29,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:29,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:29,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:29,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:29,867 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:29,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:29,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1529493972, now seen corresponding path program 5 times [2021-06-13 23:59:29,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:29,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134245261] [2021-06-13 23:59:29,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 2 proven. 2040 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-06-13 23:59:30,271 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:30,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134245261] [2021-06-13 23:59:30,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134245261] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:30,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610908460] [2021-06-13 23:59:30,271 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:30,403 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-06-13 23:59:30,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:59:30,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 52 conjunts are in the unsatisfiable core [2021-06-13 23:59:30,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:30,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-06-13 23:59:30,610 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:30,611 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:30,611 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:30,611 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:3 [2021-06-13 23:59:30,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-13 23:59:30,638 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:30,639 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:30,640 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:30,640 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-13 23:59:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 818 proven. 157 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2021-06-13 23:59:30,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610908460] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:30,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:59:30,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8] total 26 [2021-06-13 23:59:30,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418515540] [2021-06-13 23:59:30,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 23:59:30,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:30,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 23:59:30,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-13 23:59:30,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:30,799 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:30,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 8.703703703703704) internal successors, (235), 26 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:30,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:30,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:30,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:30,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:30,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:33,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:33,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:33,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:33,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-13 23:59:34,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:34,017 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:34,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:34,017 INFO L82 PathProgramCache]: Analyzing trace with hash 767007576, now seen corresponding path program 6 times [2021-06-13 23:59:34,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:34,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157846081] [2021-06-13 23:59:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4883 backedges. 113 proven. 4597 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-06-13 23:59:34,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:34,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157846081] [2021-06-13 23:59:34,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157846081] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:34,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538662554] [2021-06-13 23:59:34,658 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:34,875 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 34 check-sat command(s) [2021-06-13 23:59:34,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:59:34,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 98 conjunts are in the unsatisfiable core [2021-06-13 23:59:34,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:35,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-06-13 23:59:35,457 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:35,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:35,458 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:35,458 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:4 [2021-06-13 23:59:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4883 backedges. 0 proven. 943 refuted. 0 times theorem prover too weak. 3940 trivial. 0 not checked. [2021-06-13 23:59:35,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538662554] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:35,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:59:35,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 11] total 35 [2021-06-13 23:59:35,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068928892] [2021-06-13 23:59:35,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-13 23:59:35,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:35,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-13 23:59:35,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1185, Unknown=0, NotChecked=0, Total=1260 [2021-06-13 23:59:35,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:35,530 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:35,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 9.416666666666666) internal successors, (339), 35 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:35,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-13 23:59:35,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-13 23:59:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-06-13 23:59:39,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:39,105 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:39,105 INFO L82 PathProgramCache]: Analyzing trace with hash -248699754, now seen corresponding path program 7 times [2021-06-13 23:59:39,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:39,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130988358] [2021-06-13 23:59:39,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 14757 backedges. 747 proven. 6698 refuted. 0 times theorem prover too weak. 7312 trivial. 0 not checked. [2021-06-13 23:59:39,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:39,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130988358] [2021-06-13 23:59:39,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130988358] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:39,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393228371] [2021-06-13 23:59:39,825 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:40,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 164 conjunts are in the unsatisfiable core [2021-06-13 23:59:40,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:41,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-13 23:59:41,571 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:41,571 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:41,572 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:41,572 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-13 23:59:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 14757 backedges. 0 proven. 14437 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-06-13 23:59:41,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393228371] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:41,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:59:41,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 32] total 46 [2021-06-13 23:59:41,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341466983] [2021-06-13 23:59:41,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-06-13 23:59:41,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:41,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-06-13 23:59:41,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2066, Unknown=0, NotChecked=0, Total=2162 [2021-06-13 23:59:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:41,650 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:41,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 11.53191489361702) internal successors, (542), 46 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:41,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:41,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:41,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:41,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:41,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-13 23:59:41,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-06-13 23:59:41,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-13 23:59:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-13 23:59:47,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-13 23:59:47,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-13 23:59:47,963 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:59:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:59:47,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1088910434, now seen corresponding path program 8 times [2021-06-13 23:59:47,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:59:47,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794863725] [2021-06-13 23:59:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:59:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:59:49,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30343 backedges. 1135 proven. 11763 refuted. 0 times theorem prover too weak. 17445 trivial. 0 not checked. [2021-06-13 23:59:49,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:59:49,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794863725] [2021-06-13 23:59:49,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794863725] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:49,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278729151] [2021-06-13 23:59:49,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:59:49,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 23:59:49,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:59:49,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 232 conjunts are in the unsatisfiable core [2021-06-13 23:59:49,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:59:52,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-13 23:59:52,116 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:59:52,117 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:59:52,117 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:59:52,118 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-13 23:59:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 30343 backedges. 0 proven. 29879 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2021-06-13 23:59:52,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278729151] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:59:52,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:59:52,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 43] total 61 [2021-06-13 23:59:52,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073824742] [2021-06-13 23:59:52,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-06-13 23:59:52,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:59:52,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-06-13 23:59:52,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=3656, Unknown=0, NotChecked=0, Total=3782 [2021-06-13 23:59:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:59:52,201 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:59:52,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 12.161290322580646) internal successors, (754), 61 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-13 23:59:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:00:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:00:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:00:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:00:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:00:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:00:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:00:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:00:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:00:03,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:00:03,448 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:00:03,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:00:03,448 INFO L82 PathProgramCache]: Analyzing trace with hash 733032134, now seen corresponding path program 9 times [2021-06-14 00:00:03,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:00:03,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973304628] [2021-06-14 00:00:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:00:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:00:05,945 INFO L134 CoverageAnalysis]: Checked inductivity of 53951 backedges. 1554 proven. 19109 refuted. 0 times theorem prover too weak. 33288 trivial. 0 not checked. [2021-06-14 00:00:05,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:00:05,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973304628] [2021-06-14 00:00:05,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973304628] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:00:05,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705706919] [2021-06-14 00:00:05,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:00:06,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 109 check-sat command(s) [2021-06-14 00:00:06,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:00:06,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 308 conjunts are in the unsatisfiable core [2021-06-14 00:00:06,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:00:10,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 00:00:10,656 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 00:00:10,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 00:00:10,657 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 00:00:10,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-14 00:00:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 53951 backedges. 0 proven. 53330 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2021-06-14 00:00:10,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705706919] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:00:10,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:00:10,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 56] total 78 [2021-06-14 00:00:10,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834540856] [2021-06-14 00:00:10,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-06-14 00:00:10,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:00:10,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-06-14 00:00:10,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=6002, Unknown=0, NotChecked=0, Total=6162 [2021-06-14 00:00:10,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:00:10,779 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:00:10,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 12.443037974683545) internal successors, (983), 78 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:00:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:00:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:00:30,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:00:30,735 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:00:30,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:00:30,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1243223710, now seen corresponding path program 10 times [2021-06-14 00:00:30,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:00:30,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650739585] [2021-06-14 00:00:30,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:00:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:00:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 96273 backedges. 2083 proven. 33790 refuted. 0 times theorem prover too weak. 60400 trivial. 0 not checked. [2021-06-14 00:00:35,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:00:35,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650739585] [2021-06-14 00:00:35,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650739585] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:00:35,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842449896] [2021-06-14 00:00:35,061 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:00:35,567 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 00:00:35,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:00:35,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 3936 conjuncts, 410 conjunts are in the unsatisfiable core [2021-06-14 00:00:35,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:00:41,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-14 00:00:41,719 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 00:00:41,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 00:00:41,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 00:00:41,720 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2021-06-14 00:00:41,852 INFO L134 CoverageAnalysis]: Checked inductivity of 96273 backedges. 0 proven. 95438 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2021-06-14 00:00:41,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842449896] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:00:41,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:00:41,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 72] total 98 [2021-06-14 00:00:41,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283889899] [2021-06-14 00:00:41,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 99 states [2021-06-14 00:00:41,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:00:41,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-06-14 00:00:41,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=9502, Unknown=0, NotChecked=0, Total=9702 [2021-06-14 00:00:41,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:00:41,878 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:00:41,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 99 states, 99 states have (on average 12.808080808080808) internal successors, (1268), 98 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:00:41,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:00:59,602 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:01:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:01:14,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-14 00:01:14,272 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:01:14,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:01:14,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1926082016, now seen corresponding path program 11 times [2021-06-14 00:01:14,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:01:14,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053115398] [2021-06-14 00:01:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:01:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:01:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 154776 backedges. 2695 proven. 48672 refuted. 0 times theorem prover too weak. 103409 trivial. 0 not checked. [2021-06-14 00:01:22,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:01:22,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053115398] [2021-06-14 00:01:22,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053115398] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:01:22,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934223577] [2021-06-14 00:01:22,203 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:01:25,706 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 184 check-sat command(s) [2021-06-14 00:01:25,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:01:25,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 4972 conjuncts, 512 conjunts are in the unsatisfiable core [2021-06-14 00:01:25,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:01:34,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 00:01:34,189 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 00:01:34,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 00:01:34,190 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 00:01:34,190 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-14 00:01:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 154776 backedges. 0 proven. 153707 refuted. 0 times theorem prover too weak. 1069 trivial. 0 not checked. [2021-06-14 00:01:34,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934223577] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:01:34,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:01:34,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 90] total 120 [2021-06-14 00:01:34,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260817158] [2021-06-14 00:01:34,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 121 states [2021-06-14 00:01:34,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:01:34,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2021-06-14 00:01:34,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=14276, Unknown=0, NotChecked=0, Total=14520 [2021-06-14 00:01:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:01:34,353 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:01:34,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 121 states, 121 states have (on average 12.917355371900827) internal successors, (1563), 120 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:01:34,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:01:34,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:01:34,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:01:34,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:01:34,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:01:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:01:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:01:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:01:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:01:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:01:34,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:01:54,833 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-06-14 00:01:57,541 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:01:58,223 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:01:58,910 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:01:59,187 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:01:59,622 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:01:59,885 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:02:00,325 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:02:00,591 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:02:01,027 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:02:01,314 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:02:01,755 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:02:02,019 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:02:02,213 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:02:02,425 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:02:02,640 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:02:02,849 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:02:03,286 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:02:03,701 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:02:04,113 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:02:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:02:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:02:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:02:24,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-14 00:02:24,854 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:02:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:02:24,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1442631576, now seen corresponding path program 12 times [2021-06-14 00:02:24,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:02:24,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030999778] [2021-06-14 00:02:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:02:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:02:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 237862 backedges. 3394 proven. 68923 refuted. 0 times theorem prover too weak. 165545 trivial. 0 not checked. [2021-06-14 00:02:38,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:02:38,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030999778] [2021-06-14 00:02:38,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030999778] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:02:38,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537069939] [2021-06-14 00:02:38,656 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:02:41,829 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 231 check-sat command(s) [2021-06-14 00:02:41,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:02:41,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 6128 conjuncts, 614 conjunts are in the unsatisfiable core [2021-06-14 00:02:41,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:02:45,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-06-14 00:02:45,740 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 00:02:45,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 00:02:45,742 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-14 00:02:45,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 00:02:45,744 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-14 00:02:45,744 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2021-06-14 00:02:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 237862 backedges. 1188 proven. 67206 refuted. 0 times theorem prover too weak. 169468 trivial. 0 not checked. [2021-06-14 00:02:45,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537069939] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:02:45,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:02:45,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 44] total 60 [2021-06-14 00:02:45,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701831499] [2021-06-14 00:02:45,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-06-14 00:02:45,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:02:45,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-06-14 00:02:45,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3484, Unknown=0, NotChecked=0, Total=3660 [2021-06-14 00:02:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:02:45,785 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:02:45,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 61 states, 61 states have (on average 9.426229508196721) internal successors, (575), 60 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:02:45,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:02:47,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-14 00:02:47,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-14 00:02:47,774 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:02:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:02:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash -2118275556, now seen corresponding path program 13 times [2021-06-14 00:02:47,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:02:47,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132229596] [2021-06-14 00:02:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:03:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 242601 backedges. 3405 proven. 73689 refuted. 0 times theorem prover too weak. 165507 trivial. 0 not checked. [2021-06-14 00:03:02,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:03:02,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132229596] [2021-06-14 00:03:02,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132229596] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:02,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854050922] [2021-06-14 00:03:02,234 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:03:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:03:03,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 6207 conjuncts, 644 conjunts are in the unsatisfiable core [2021-06-14 00:03:03,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:03:16,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 00:03:16,462 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 00:03:16,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 00:03:16,463 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 00:03:16,463 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-14 00:03:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 242601 backedges. 0 proven. 241275 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2021-06-14 00:03:16,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854050922] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:03:16,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:03:16,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 112] total 150 [2021-06-14 00:03:16,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710080214] [2021-06-14 00:03:16,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 151 states [2021-06-14 00:03:16,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:03:16,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2021-06-14 00:03:16,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=22346, Unknown=0, NotChecked=0, Total=22650 [2021-06-14 00:03:16,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:16,666 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:03:16,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 151 states, 151 states have (on average 13.059602649006623) internal successors, (1972), 150 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:03:16,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:03:16,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:03:16,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:03:16,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:03:16,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:03:16,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:03:16,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:03:16,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:03:16,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:03:16,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:03:16,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:03:16,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-14 00:03:16,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:03:45,656 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:03:46,527 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:03:47,412 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:03:47,734 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:03:48,293 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:03:48,622 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:03:49,184 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:03:49,531 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:03:50,094 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:03:50,430 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:03:50,998 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:03:51,344 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:03:51,924 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:03:52,287 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:03:52,863 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:03:53,212 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:03:53,786 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:03:54,139 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:03:54,736 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:03:55,093 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:03:55,669 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:03:56,026 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:03:56,607 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:03:56,975 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:03:57,575 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:03:57,937 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:03:58,516 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:03:58,883 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:03:59,474 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:03:59,850 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:04:00,461 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:04:00,838 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:04:01,436 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:04:01,813 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:04:02,096 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:04:02,397 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:04:02,721 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:04:03,020 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:04:03,324 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:04:03,620 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:04:03,919 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:04:04,214 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:04:04,513 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:04:04,804 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:04:05,117 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:04:05,407 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:04:05,701 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:04:05,987 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:04:06,277 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:04:06,562 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:04:06,852 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:04:07,137 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:04:07,439 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:04:07,722 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:04:08,005 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:04:08,283 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:04:08,563 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:04:08,838 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:04:09,118 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:04:09,391 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:04:09,956 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:04:10,500 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:04:11,033 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:04:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-14 00:04:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2021-06-14 00:04:40,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:04:40,747 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:04:40,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:04:40,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1397214624, now seen corresponding path program 14 times [2021-06-14 00:04:40,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:04:40,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367043680] [2021-06-14 00:04:40,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:05:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:05:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 375335 backedges. 4261 proven. 109648 refuted. 0 times theorem prover too weak. 261426 trivial. 0 not checked. [2021-06-14 00:05:06,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:05:06,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367043680] [2021-06-14 00:05:06,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367043680] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:05:06,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570762712] [2021-06-14 00:05:06,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:05:08,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 00:05:08,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:05:08,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 7708 conjuncts, 796 conjunts are in the unsatisfiable core [2021-06-14 00:05:08,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:05:26,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 00:05:26,578 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 00:05:26,579 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 00:05:26,579 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 00:05:26,579 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-14 00:05:26,818 INFO L134 CoverageAnalysis]: Checked inductivity of 375335 backedges. 0 proven. 373690 refuted. 0 times theorem prover too weak. 1645 trivial. 0 not checked. [2021-06-14 00:05:26,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570762712] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:05:26,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:05:26,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 137] total 177 [2021-06-14 00:05:26,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283245738] [2021-06-14 00:05:26,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 178 states [2021-06-14 00:05:26,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:05:26,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2021-06-14 00:05:26,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=31148, Unknown=0, NotChecked=0, Total=31506 [2021-06-14 00:05:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:05:26,822 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:05:26,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 178 states, 178 states have (on average 13.320224719101123) internal successors, (2371), 177 states have internal predecessors, (2371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2021-06-14 00:05:26,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:05:59,619 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-06-14 00:06:00,631 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:06:01,653 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:06:02,681 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:06:03,056 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:06:03,746 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:06:04,123 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:06:04,784 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:06:05,164 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:06:05,833 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:06:06,221 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:06:06,916 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:06:07,311 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:06:08,009 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:06:08,404 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:06:09,073 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:06:09,472 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:06:10,151 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:06:10,577 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:06:11,259 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:06:11,670 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:06:12,378 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:06:12,800 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:06:13,487 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:06:13,907 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:06:14,596 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:06:15,020 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:06:15,713 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:06:16,161 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:06:16,862 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:06:17,291 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:06:17,991 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:06:18,429 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:06:19,132 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:06:19,574 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:06:20,310 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:06:20,758 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:06:21,473 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:06:21,925 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:06:22,641 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:06:23,098 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:06:23,814 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:06:24,297 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:06:25,021 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:06:25,486 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:06:26,205 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:06:26,672 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:06:27,396 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:06:27,868 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:06:28,627 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:06:29,103 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:06:29,836 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:06:30,320 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:06:31,055 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:06:31,542 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:06:32,307 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-14 00:06:32,799 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:06:33,547 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2021-06-14 00:06:34,040 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:06:34,455 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:06:34,897 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-14 00:06:35,387 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:06:35,789 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:06:36,222 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:06:36,621 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:06:37,025 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:06:37,423 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:06:37,825 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:06:38,221 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:06:38,622 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:06:39,019 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:06:39,416 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:06:39,833 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:06:40,226 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:06:40,615 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:06:41,008 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:06:41,392 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:06:41,778 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:06:42,160 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:06:42,546 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:06:42,925 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:06:43,329 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:06:43,721 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:06:44,103 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:06:44,477 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:06:44,853 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:06:45,226 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:06:45,598 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:06:45,967 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:06:46,338 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:06:46,705 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:06:47,098 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:06:47,461 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:06:47,825 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:06:48,188 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:06:48,553 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:06:48,912 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:06:49,273 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:06:49,630 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:06:49,987 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:06:50,341 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:06:50,718 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:06:51,069 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:06:51,421 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:06:51,769 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:06:52,115 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:06:52,460 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:06:52,806 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:06:53,147 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:06:53,487 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:06:53,826 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:06:54,525 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:06:55,189 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:06:55,849 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:07:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 00:07:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 368 states. [2021-06-14 00:07:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2021-06-14 00:07:32,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-14 00:07:32,518 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:07:32,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:07:32,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1533773896, now seen corresponding path program 15 times [2021-06-14 00:07:32,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:07:32,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229810952] [2021-06-14 00:07:32,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 00:08:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 00:08:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 540082 backedges. 5198 proven. 140248 refuted. 0 times theorem prover too weak. 394636 trivial. 0 not checked. [2021-06-14 00:08:16,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 00:08:16,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229810952] [2021-06-14 00:08:16,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229810952] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:08:16,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6563189] [2021-06-14 00:08:16,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:08:25,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 343 check-sat command(s) [2021-06-14 00:08:25,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 00:08:25,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 9231 conjuncts, 952 conjunts are in the unsatisfiable core [2021-06-14 00:08:25,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 00:08:50,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 00:08:50,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 00:08:50,443 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 00:08:50,443 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 00:08:50,443 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-14 00:08:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 540082 backedges. 0 proven. 538108 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2021-06-14 00:08:50,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6563189] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 00:08:50,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 00:08:50,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 163] total 207 [2021-06-14 00:08:50,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843803571] [2021-06-14 00:08:50,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 208 states [2021-06-14 00:08:50,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 00:08:50,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2021-06-14 00:08:50,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=42638, Unknown=0, NotChecked=0, Total=43056 [2021-06-14 00:08:50,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:08:50,732 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 00:08:50,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 208 states, 208 states have (on average 13.475961538461538) internal successors, (2803), 207 states have internal predecessors, (2803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 00:08:50,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:08:50,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:08:50,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:08:50,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:08:50,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 368 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 421 states. [2021-06-14 00:08:50,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 00:09:29,615 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-06-14 00:09:30,379 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:09:31,572 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:09:32,777 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:09:33,214 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:09:33,993 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:09:34,462 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:09:35,236 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:09:35,677 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:09:36,459 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:09:36,907 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:09:37,689 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:09:38,140 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:09:38,926 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:09:39,410 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:09:40,203 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:09:40,666 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:09:41,467 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:09:41,952 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:09:42,752 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:09:43,238 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:09:44,073 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:09:44,555 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:09:45,360 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:09:45,842 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:09:46,651 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:09:47,141 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:09:47,957 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:09:48,481 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:09:49,303 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:09:49,801 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:09:50,621 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:09:51,123 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:09:51,952 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:09:52,463 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:09:53,323 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:09:53,841 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:09:54,682 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:09:55,203 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:09:56,039 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:09:56,566 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:09:57,409 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:09:57,963 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:09:58,812 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:09:59,359 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:10:00,209 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:10:00,751 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:10:01,612 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:10:02,246 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:10:03,173 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:10:03,732 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:10:04,622 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:10:05,185 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:10:06,057 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:10:06,620 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:10:07,527 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-14 00:10:08,099 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:10:09,000 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2021-06-14 00:10:09,583 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-14 00:10:10,473 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2021-06-14 00:10:11,055 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2021-06-14 00:10:11,986 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2021-06-14 00:10:12,573 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2021-06-14 00:10:13,489 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2021-06-14 00:10:14,085 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2021-06-14 00:10:15,006 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-06-14 00:10:15,606 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2021-06-14 00:10:16,539 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2021-06-14 00:10:17,146 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-06-14 00:10:18,070 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2021-06-14 00:10:18,684 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2021-06-14 00:10:19,609 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2021-06-14 00:10:20,225 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2021-06-14 00:10:21,172 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2021-06-14 00:10:21,795 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2021-06-14 00:10:22,719 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2021-06-14 00:10:23,347 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2021-06-14 00:10:24,276 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2021-06-14 00:10:24,937 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2021-06-14 00:10:25,869 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2021-06-14 00:10:26,505 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2021-06-14 00:10:27,439 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2021-06-14 00:10:28,080 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2021-06-14 00:10:29,021 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2021-06-14 00:10:29,688 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2021-06-14 00:10:30,238 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2021-06-14 00:10:30,818 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2021-06-14 00:10:31,456 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2021-06-14 00:10:31,995 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2021-06-14 00:10:32,537 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2021-06-14 00:10:33,074 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2021-06-14 00:10:33,640 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2021-06-14 00:10:34,173 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2021-06-14 00:10:34,719 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2021-06-14 00:10:35,248 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2021-06-14 00:10:35,780 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2021-06-14 00:10:36,308 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2021-06-14 00:10:36,838 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-06-14 00:10:37,357 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2021-06-14 00:10:37,908 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2021-06-14 00:10:38,429 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2021-06-14 00:10:38,952 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2021-06-14 00:10:39,466 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-06-14 00:10:39,991 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2021-06-14 00:10:40,516 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2021-06-14 00:10:41,033 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2021-06-14 00:10:41,545 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2021-06-14 00:10:42,089 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-14 00:10:42,597 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2021-06-14 00:10:43,105 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:10:43,610 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2021-06-14 00:10:44,116 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:10:44,620 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-14 00:10:45,125 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:10:45,623 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-14 00:10:46,146 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:10:46,640 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-14 00:10:47,134 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:10:47,624 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 00:10:48,114 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:10:48,606 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2021-06-14 00:10:49,096 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:10:49,582 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-06-14 00:10:50,093 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:10:50,576 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-06-14 00:10:51,061 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:10:51,538 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-14 00:10:52,021 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:10:52,497 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-06-14 00:10:52,974 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:10:53,445 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-06-14 00:10:53,917 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:10:54,411 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 00:10:54,880 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:10:55,344 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-06-14 00:10:55,803 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:10:56,268 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-14 00:10:56,728 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:10:57,186 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-06-14 00:10:57,643 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:10:58,098 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-06-14 00:10:58,573 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:10:59,022 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-14 00:10:59,472 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:10:59,920 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-06-14 00:11:00,369 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:11:00,815 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 00:11:01,261 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:11:01,705 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-14 00:11:02,145 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:11:02,607 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 00:11:03,042 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:11:03,479 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-06-14 00:11:03,912 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:11:04,340 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-06-14 00:11:04,765 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:11:05,192 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-06-14 00:11:05,614 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:11:06,033 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-14 00:11:06,476 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:11:06,892 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-14 00:11:07,305 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:11:07,718 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 00:11:08,535 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-06-14 00:11:09,346 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-06-14 00:11:10,153 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-06-14 00:11:57,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 368 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2021-06-14 00:11:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 494 states. [2021-06-14 00:11:57,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 00:11:57,594 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 00:11:57,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 00:11:57,595 INFO L82 PathProgramCache]: Analyzing trace with hash 2139699294, now seen corresponding path program 16 times [2021-06-14 00:11:57,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 00:11:57,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235789713] [2021-06-14 00:11:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown