/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 16:07:57,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 16:07:57,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 16:07:57,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 16:07:57,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 16:07:57,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 16:07:57,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 16:07:57,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 16:07:57,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 16:07:57,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 16:07:57,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 16:07:57,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 16:07:57,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 16:07:57,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 16:07:57,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 16:07:57,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 16:07:57,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 16:07:57,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 16:07:57,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 16:07:57,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 16:07:57,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 16:07:57,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 16:07:57,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 16:07:57,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 16:07:57,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 16:07:57,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 16:07:57,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 16:07:57,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 16:07:57,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 16:07:57,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 16:07:57,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 16:07:57,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 16:07:57,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 16:07:57,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 16:07:57,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 16:07:57,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 16:07:57,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 16:07:57,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 16:07:57,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 16:07:57,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 16:07:57,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 16:07:57,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-14 16:07:57,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 16:07:57,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 16:07:57,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 16:07:57,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 16:07:57,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 16:07:57,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 16:07:57,527 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 16:07:57,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 16:07:57,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 16:07:57,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 16:07:57,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 16:07:57,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 16:07:57,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 16:07:57,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 16:07:57,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 16:07:57,529 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 16:07:57,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 16:07:57,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 16:07:57,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 16:07:57,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 16:07:57,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 16:07:57,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 16:07:57,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 16:07:57,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:07:57,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 16:07:57,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 16:07:57,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 16:07:57,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 16:07:57,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 16:07:57,531 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 16:07:57,531 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 16:07:57,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 16:07:57,532 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 16:07:57,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 16:07:57,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 16:07:57,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 16:07:57,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 16:07:57,869 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 16:07:57,873 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 16:07:57,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2021-07-14 16:07:57,874 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2021-07-14 16:07:57,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 16:07:57,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 16:07:57,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 16:07:57,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 16:07:57,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 16:07:57,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 16:07:57,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 16:07:57,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 16:07:57,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 16:07:57,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... [2021-07-14 16:07:57,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 16:07:57,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 16:07:57,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 16:07:57,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 16:07:57,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:07:58,046 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 16:07:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 16:07:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 16:07:58,047 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 16:07:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 16:07:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 16:07:58,048 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 16:07:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 16:07:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 16:07:58,049 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 16:07:58,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 16:07:58,209 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 16:07:58,211 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:07:58 BoogieIcfgContainer [2021-07-14 16:07:58,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 16:07:58,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 16:07:58,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 16:07:58,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 16:07:58,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:07:57" (1/2) ... [2021-07-14 16:07:58,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c4dba and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:07:58, skipping insertion in model container [2021-07-14 16:07:58,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:07:58" (2/2) ... [2021-07-14 16:07:58,217 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2021-07-14 16:07:58,222 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 16:07:58,222 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 16:07:58,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 16:07:58,223 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 16:07:58,263 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 16:07:58,296 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 16:07:58,375 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 16:07:58,375 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 16:07:58,375 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 16:07:58,375 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 16:07:58,375 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 16:07:58,375 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 16:07:58,376 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 16:07:58,376 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 16:07:58,471 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:07:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:07:58,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1960960119, now seen corresponding path program 1 times [2021-07-14 16:07:58,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:07:58,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827339169] [2021-07-14 16:07:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:07:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:07:58,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:07:58,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827339169] [2021-07-14 16:07:58,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827339169] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 16:07:58,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 16:07:58,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 16:07:58,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774403800] [2021-07-14 16:07:58,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 16:07:58,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:07:58,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 16:07:58,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 16:07:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:58,680 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:07:58,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:07:58,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:58,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 16:07:58,746 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:07:58,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:07:58,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1140283143, now seen corresponding path program 1 times [2021-07-14 16:07:58,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:07:58,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892181926] [2021-07-14 16:07:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:07:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 16:07:58,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:07:58,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892181926] [2021-07-14 16:07:58,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892181926] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 16:07:58,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 16:07:58,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 16:07:58,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280993976] [2021-07-14 16:07:58,807 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 16:07:58,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:07:58,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 16:07:58,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 16:07:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:58,808 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:07:58,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:07:58,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:58,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:58,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 16:07:58,865 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:07:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:07:58,866 INFO L82 PathProgramCache]: Analyzing trace with hash 97262777, now seen corresponding path program 1 times [2021-07-14 16:07:58,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:07:58,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100725324] [2021-07-14 16:07:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:07:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:07:59,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:07:59,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100725324] [2021-07-14 16:07:59,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100725324] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:59,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500925560] [2021-07-14 16:07:59,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:07:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:07:59,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-14 16:07:59,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:07:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:07:59,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500925560] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:07:59,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:07:59,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-14 16:07:59,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819521645] [2021-07-14 16:07:59,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 16:07:59,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:07:59,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 16:07:59,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-07-14 16:07:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:59,549 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:07:59,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 20 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:07:59,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:59,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:59,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:07:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:07:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:00,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:00,101 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:00,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:00,102 INFO L82 PathProgramCache]: Analyzing trace with hash 561385337, now seen corresponding path program 2 times [2021-07-14 16:08:00,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:00,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667992554] [2021-07-14 16:08:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:00,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:00,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667992554] [2021-07-14 16:08:00,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667992554] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:00,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442683813] [2021-07-14 16:08:00,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:00,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:08:00,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:00,378 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-14 16:08:00,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:00,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442683813] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:00,808 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:00,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 16:08:00,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218829884] [2021-07-14 16:08:00,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 16:08:00,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:00,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 16:08:00,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2021-07-14 16:08:00,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:00,810 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:00,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:00,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:00,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:00,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:00,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:01,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:01,464 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:01,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:01,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1477470399, now seen corresponding path program 3 times [2021-07-14 16:08:01,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:01,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950711037] [2021-07-14 16:08:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:01,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:01,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950711037] [2021-07-14 16:08:01,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950711037] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:01,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924637193] [2021-07-14 16:08:01,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:01,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-14 16:08:01,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:01,846 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-14 16:08:01,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:02,492 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:02,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924637193] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:02,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:02,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2021-07-14 16:08:02,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519755273] [2021-07-14 16:08:02,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-14 16:08:02,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:02,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-14 16:08:02,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=991, Unknown=0, NotChecked=0, Total=1122 [2021-07-14 16:08:02,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:02,495 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:02,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.0) internal successors, (68), 33 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:02,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:02,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:02,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:02,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:02,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:05,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:05,227 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:05,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:05,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1565267587, now seen corresponding path program 4 times [2021-07-14 16:08:05,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:05,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942216217] [2021-07-14 16:08:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:05,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:05,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942216217] [2021-07-14 16:08:05,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942216217] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:05,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550315017] [2021-07-14 16:08:05,609 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:05,656 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:08:05,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:05,657 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 63 conjunts are in the unsatisfiable core [2021-07-14 16:08:05,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:06,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550315017] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:06,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:06,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22] total 40 [2021-07-14 16:08:06,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162853295] [2021-07-14 16:08:06,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-14 16:08:06,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:06,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-14 16:08:06,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640 [2021-07-14 16:08:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:06,444 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:06,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.048780487804878) internal successors, (84), 40 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:06,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:06,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:06,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:06,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:06,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:06,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:09,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-07-14 16:08:09,657 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:09,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1691123385, now seen corresponding path program 5 times [2021-07-14 16:08:09,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:09,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765499879] [2021-07-14 16:08:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 25 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:10,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:10,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765499879] [2021-07-14 16:08:10,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765499879] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:10,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286992268] [2021-07-14 16:08:10,134 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:10,178 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-07-14 16:08:10,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:10,180 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 81 conjunts are in the unsatisfiable core [2021-07-14 16:08:10,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:11,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286992268] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:11,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:11,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 47 [2021-07-14 16:08:11,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872050314] [2021-07-14 16:08:11,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-07-14 16:08:11,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:11,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-07-14 16:08:11,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1988, Unknown=0, NotChecked=0, Total=2256 [2021-07-14 16:08:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:11,085 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:11,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.0833333333333335) internal successors, (100), 47 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:11,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:11,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:11,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:14,726 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 16:08:14,726 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:14,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:14,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1948641547, now seen corresponding path program 6 times [2021-07-14 16:08:14,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:14,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53158236] [2021-07-14 16:08:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 36 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:15,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:15,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53158236] [2021-07-14 16:08:15,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53158236] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:15,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002696746] [2021-07-14 16:08:15,300 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:15,349 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-07-14 16:08:15,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:15,350 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 97 conjunts are in the unsatisfiable core [2021-07-14 16:08:15,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:16,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002696746] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:16,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:16,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 30] total 54 [2021-07-14 16:08:16,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178167815] [2021-07-14 16:08:16,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-07-14 16:08:16,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:16,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-07-14 16:08:16,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=2628, Unknown=0, NotChecked=0, Total=2970 [2021-07-14 16:08:16,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:16,401 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:16,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.109090909090909) internal successors, (116), 54 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:16,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:20,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-14 16:08:20,548 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:20,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:20,548 INFO L82 PathProgramCache]: Analyzing trace with hash 143822287, now seen corresponding path program 7 times [2021-07-14 16:08:20,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:20,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590161461] [2021-07-14 16:08:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:21,187 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 49 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:21,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:21,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590161461] [2021-07-14 16:08:21,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590161461] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:21,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95339169] [2021-07-14 16:08:21,188 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:21,231 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 113 conjunts are in the unsatisfiable core [2021-07-14 16:08:21,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:22,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95339169] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:22,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:22,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 34] total 61 [2021-07-14 16:08:22,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212184049] [2021-07-14 16:08:22,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-07-14 16:08:22,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:22,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-07-14 16:08:22,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=3357, Unknown=0, NotChecked=0, Total=3782 [2021-07-14 16:08:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:22,521 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:22,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.129032258064516) internal successors, (132), 61 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:22,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:22,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:08:27,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:27,574 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:27,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:27,574 INFO L82 PathProgramCache]: Analyzing trace with hash 720940947, now seen corresponding path program 8 times [2021-07-14 16:08:27,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:27,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252849609] [2021-07-14 16:08:27,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 64 proven. 386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:28,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:28,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252849609] [2021-07-14 16:08:28,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252849609] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:28,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031624337] [2021-07-14 16:08:28,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:28,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:08:28,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:28,285 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 129 conjunts are in the unsatisfiable core [2021-07-14 16:08:28,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:29,745 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:29,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031624337] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:29,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:29,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 38] total 68 [2021-07-14 16:08:29,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289319701] [2021-07-14 16:08:29,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-07-14 16:08:29,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:29,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-07-14 16:08:29,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=517, Invalid=4175, Unknown=0, NotChecked=0, Total=4692 [2021-07-14 16:08:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:29,748 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:29,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.1449275362318843) internal successors, (148), 68 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:08:29,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:31,444 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-07-14 16:08:31,714 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-14 16:08:32,047 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-07-14 16:08:32,319 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-14 16:08:32,832 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-07-14 16:08:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:08:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:08:35,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:35,634 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:35,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:35,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1407684183, now seen corresponding path program 9 times [2021-07-14 16:08:35,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:35,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678124721] [2021-07-14 16:08:35,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 81 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:36,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:36,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678124721] [2021-07-14 16:08:36,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678124721] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:36,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416424651] [2021-07-14 16:08:36,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:36,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 25 check-sat command(s) [2021-07-14 16:08:36,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:36,510 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 145 conjunts are in the unsatisfiable core [2021-07-14 16:08:36,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:38,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416424651] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:38,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:38,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 42] total 75 [2021-07-14 16:08:38,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124278790] [2021-07-14 16:08:38,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-07-14 16:08:38,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:38,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-07-14 16:08:38,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=5080, Unknown=0, NotChecked=0, Total=5700 [2021-07-14 16:08:38,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:38,238 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:38,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 2.1578947368421053) internal successors, (164), 75 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:38,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:38,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:38,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:08:38,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:39,830 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-07-14 16:08:40,203 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-07-14 16:08:40,507 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-07-14 16:08:40,877 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-07-14 16:08:41,196 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-07-14 16:08:41,512 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-07-14 16:08:41,735 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-07-14 16:08:43,423 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-07-14 16:08:43,647 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:08:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:08:44,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:08:45,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:45,026 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:45,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:45,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1778488805, now seen corresponding path program 10 times [2021-07-14 16:08:45,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:45,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698450188] [2021-07-14 16:08:45,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 100 proven. 622 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:46,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:46,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698450188] [2021-07-14 16:08:46,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698450188] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:46,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250325221] [2021-07-14 16:08:46,058 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:46,128 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:08:46,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:46,131 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 153 conjunts are in the unsatisfiable core [2021-07-14 16:08:46,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:08:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:48,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250325221] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:48,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:08:48,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 46] total 82 [2021-07-14 16:08:48,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893597005] [2021-07-14 16:08:48,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-07-14 16:08:48,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:08:48,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-07-14 16:08:48,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=692, Invalid=6114, Unknown=0, NotChecked=0, Total=6806 [2021-07-14 16:08:48,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:48,754 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:08:48,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 2.1686746987951806) internal successors, (180), 82 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:08:48,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:08:48,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:08:50,578 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-14 16:08:50,896 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-07-14 16:08:51,325 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-07-14 16:08:51,676 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2021-07-14 16:08:52,113 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-07-14 16:08:52,468 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2021-07-14 16:08:52,829 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-07-14 16:08:53,080 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-07-14 16:08:53,319 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:08:54,879 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-07-14 16:08:55,224 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-07-14 16:08:55,480 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2021-07-14 16:08:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:08:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:08:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:08:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:08:57,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-14 16:08:57,229 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:08:57,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:08:57,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1846770977, now seen corresponding path program 11 times [2021-07-14 16:08:57,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:08:57,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54264207] [2021-07-14 16:08:57,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:08:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:08:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 121 proven. 761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:08:58,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:08:58,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54264207] [2021-07-14 16:08:58,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54264207] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:08:58,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31416359] [2021-07-14 16:08:58,278 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:08:58,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2021-07-14 16:08:58,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:08:58,357 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 177 conjunts are in the unsatisfiable core [2021-07-14 16:08:58,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:09:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:09:00,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31416359] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:09:00,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:09:00,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 50] total 89 [2021-07-14 16:09:00,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245471070] [2021-07-14 16:09:00,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-07-14 16:09:00,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:09:00,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-07-14 16:09:00,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=849, Invalid=7161, Unknown=0, NotChecked=0, Total=8010 [2021-07-14 16:09:00,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:00,872 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:09:00,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 2.1777777777777776) internal successors, (196), 89 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:09:00,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:02,945 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:09:03,281 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-07-14 16:09:03,737 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-07-14 16:09:04,100 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2021-07-14 16:09:04,537 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-07-14 16:09:04,903 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2021-07-14 16:09:05,285 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-07-14 16:09:05,555 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2021-07-14 16:09:05,805 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:09:06,013 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:09:07,575 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-07-14 16:09:07,915 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2021-07-14 16:09:08,193 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:09:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:09:10,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:09:10,079 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:09:10,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:09:10,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1785796771, now seen corresponding path program 12 times [2021-07-14 16:09:10,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:09:10,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578818433] [2021-07-14 16:09:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:09:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:09:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 144 proven. 914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:09:11,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:09:11,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578818433] [2021-07-14 16:09:11,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578818433] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:09:11,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984451638] [2021-07-14 16:09:11,270 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:09:11,376 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 34 check-sat command(s) [2021-07-14 16:09:11,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:09:11,379 WARN L261 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 191 conjunts are in the unsatisfiable core [2021-07-14 16:09:11,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:09:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 0 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:09:14,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984451638] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:09:14,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:09:14,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 54] total 96 [2021-07-14 16:09:14,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855681736] [2021-07-14 16:09:14,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-07-14 16:09:14,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:09:14,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-07-14 16:09:14,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=8340, Unknown=0, NotChecked=0, Total=9312 [2021-07-14 16:09:14,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:14,182 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:09:14,182 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 97 states, 97 states have (on average 2.185567010309278) internal successors, (212), 96 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:09:14,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:16,384 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:09:16,763 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:09:17,154 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2021-07-14 16:09:17,641 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2021-07-14 16:09:18,044 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2021-07-14 16:09:18,582 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2021-07-14 16:09:18,988 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2021-07-14 16:09:19,401 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2021-07-14 16:09:19,700 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2021-07-14 16:09:19,979 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:09:20,241 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:09:20,460 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:09:22,125 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2021-07-14 16:09:22,518 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 94 [2021-07-14 16:09:22,818 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2021-07-14 16:09:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:09:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:09:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:09:25,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-07-14 16:09:25,068 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:09:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:09:25,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1201968281, now seen corresponding path program 13 times [2021-07-14 16:09:25,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:09:25,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261127345] [2021-07-14 16:09:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:09:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:09:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 169 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:09:26,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:09:26,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261127345] [2021-07-14 16:09:26,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261127345] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:09:26,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110840107] [2021-07-14 16:09:26,355 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:09:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:09:26,422 WARN L261 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 198 conjunts are in the unsatisfiable core [2021-07-14 16:09:26,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:09:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 0 proven. 1250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:09:30,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110840107] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:09:30,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:09:30,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 58] total 103 [2021-07-14 16:09:30,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123731115] [2021-07-14 16:09:30,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-07-14 16:09:30,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:09:30,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-07-14 16:09:30,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1044, Invalid=9668, Unknown=0, NotChecked=0, Total=10712 [2021-07-14 16:09:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:30,524 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:09:30,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 104 states, 104 states have (on average 2.1923076923076925) internal successors, (228), 103 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:09:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:09:30,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:09:30,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:32,943 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-14 16:09:33,285 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-14 16:09:33,703 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-14 16:09:34,136 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2021-07-14 16:09:34,682 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2021-07-14 16:09:35,136 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2021-07-14 16:09:35,678 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2021-07-14 16:09:36,148 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2021-07-14 16:09:36,604 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2021-07-14 16:09:36,935 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 99 [2021-07-14 16:09:37,247 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 16:09:37,513 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 16:09:37,761 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 16:09:38,004 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 16:09:39,755 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2021-07-14 16:09:40,205 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2021-07-14 16:09:40,539 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2021-07-14 16:09:43,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:43,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:43,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:09:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:09:43,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:09:43,353 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:09:43,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:09:43,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2123021099, now seen corresponding path program 14 times [2021-07-14 16:09:43,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:09:43,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355044855] [2021-07-14 16:09:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:09:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:09:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 196 proven. 1262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:09:44,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:09:44,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355044855] [2021-07-14 16:09:44,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355044855] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:09:44,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852577986] [2021-07-14 16:09:44,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:09:44,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:09:44,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:09:44,771 WARN L261 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 225 conjunts are in the unsatisfiable core [2021-07-14 16:09:44,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:09:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 0 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:09:48,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852577986] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:09:48,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:09:48,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 62] total 110 [2021-07-14 16:09:48,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079572261] [2021-07-14 16:09:48,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-07-14 16:09:48,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:09:48,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-07-14 16:09:48,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1258, Invalid=10952, Unknown=0, NotChecked=0, Total=12210 [2021-07-14 16:09:48,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:48,236 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:09:48,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 111 states, 111 states have (on average 2.1981981981981984) internal successors, (244), 110 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:09:48,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:09:50,095 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-07-14 16:09:50,429 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-14 16:09:50,749 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-14 16:09:51,098 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-14 16:09:51,522 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-14 16:09:51,965 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2021-07-14 16:09:52,517 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2021-07-14 16:09:52,982 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2021-07-14 16:09:53,548 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2021-07-14 16:09:54,014 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2021-07-14 16:09:54,489 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2021-07-14 16:09:54,837 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2021-07-14 16:09:55,167 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 16:09:55,451 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 16:09:55,742 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 16:09:55,987 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 16:09:56,215 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 16:09:57,933 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2021-07-14 16:09:58,368 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-07-14 16:09:58,717 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 106 [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:10:01,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:10:01,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:10:01,382 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:10:01,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:10:01,382 INFO L82 PathProgramCache]: Analyzing trace with hash 502155247, now seen corresponding path program 15 times [2021-07-14 16:10:01,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:10:01,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439912876] [2021-07-14 16:10:01,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:10:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:10:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 225 proven. 1457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:10:02,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:10:02,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439912876] [2021-07-14 16:10:02,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439912876] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:10:02,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976038742] [2021-07-14 16:10:02,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:10:02,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 43 check-sat command(s) [2021-07-14 16:10:02,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:10:02,905 WARN L261 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 213 conjunts are in the unsatisfiable core [2021-07-14 16:10:02,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:10:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 0 proven. 1682 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:10:10,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976038742] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:10:10,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:10:10,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 66] total 117 [2021-07-14 16:10:10,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616988240] [2021-07-14 16:10:10,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-07-14 16:10:10,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:10:10,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-07-14 16:10:10,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=12751, Unknown=0, NotChecked=0, Total=13806 [2021-07-14 16:10:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:10:10,115 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:10:10,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 118 states, 118 states have (on average 2.2033898305084745) internal successors, (260), 117 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:10:10,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:10,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:10,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:10:10,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:10:10,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:10:10,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:10:12,904 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-07-14 16:10:13,348 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-14 16:10:13,814 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:10:14,304 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:10:14,869 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-14 16:10:15,425 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-14 16:10:16,067 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-14 16:10:16,702 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2021-07-14 16:10:17,397 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-07-14 16:10:17,930 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 114 [2021-07-14 16:10:18,582 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-07-14 16:10:19,116 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 114 [2021-07-14 16:10:19,653 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 115 [2021-07-14 16:10:20,059 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 113 [2021-07-14 16:10:20,437 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 16:10:20,764 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 16:10:21,073 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 16:10:21,365 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:10:21,643 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:10:21,908 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:10:22,171 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-14 16:10:24,147 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-07-14 16:10:24,684 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 115 [2021-07-14 16:10:25,079 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 113 [2021-07-14 16:10:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:10:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:10:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:10:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:10:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:10:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:10:28,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:10:28,775 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:10:28,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:10:28,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1233473971, now seen corresponding path program 16 times [2021-07-14 16:10:28,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:10:28,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999773560] [2021-07-14 16:10:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:10:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:10:30,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 256 proven. 1666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:10:30,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:10:30,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999773560] [2021-07-14 16:10:30,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999773560] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:10:30,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349722885] [2021-07-14 16:10:30,345 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:10:30,413 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:10:30,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:10:30,416 WARN L261 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 243 conjunts are in the unsatisfiable core [2021-07-14 16:10:30,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:10:35,893 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 16:10:36,365 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 16:10:36,716 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 16:10:36,869 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2021-07-14 16:10:37,664 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2021-07-14 16:10:37,766 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2021-07-14 16:10:38,388 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-14 16:10:39,117 WARN L205 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-14 16:10:39,400 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-14 16:10:39,562 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-07-14 16:10:39,773 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-14 16:10:40,122 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-14 16:10:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:10:40,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349722885] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:10:40,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:10:40,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 70] total 124 [2021-07-14 16:10:40,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200359063] [2021-07-14 16:10:40,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 125 states [2021-07-14 16:10:40,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:10:40,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-07-14 16:10:40,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1472, Invalid=14028, Unknown=0, NotChecked=0, Total=15500 [2021-07-14 16:10:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:10:40,661 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:10:40,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 125 states, 125 states have (on average 2.208) internal successors, (276), 124 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:10:40,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:10:40,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:10:40,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:10:40,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:10:40,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:10:40,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:10:43,061 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-14 16:10:43,413 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:10:43,795 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:10:44,197 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-14 16:10:44,628 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-14 16:10:45,074 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-14 16:10:45,625 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-14 16:10:46,156 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 119 [2021-07-14 16:10:46,841 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 123 [2021-07-14 16:10:47,413 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 121 [2021-07-14 16:10:48,093 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 123 [2021-07-14 16:10:48,682 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 121 [2021-07-14 16:10:49,265 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2021-07-14 16:10:49,688 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 120 [2021-07-14 16:10:50,097 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 16:10:50,453 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 16:10:50,784 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 16:10:51,096 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 16:10:51,391 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:10:51,676 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:10:51,937 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:10:54,139 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 118 [2021-07-14 16:10:54,674 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 122 [2021-07-14 16:10:55,100 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 120 [2021-07-14 16:10:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:10:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:10:59,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-07-14 16:10:59,056 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:10:59,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:10:59,057 INFO L82 PathProgramCache]: Analyzing trace with hash -94431113, now seen corresponding path program 17 times [2021-07-14 16:10:59,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:10:59,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669903218] [2021-07-14 16:10:59,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:10:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:11:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 289 proven. 1889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:11:00,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:11:00,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669903218] [2021-07-14 16:11:00,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669903218] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:11:00,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343598956] [2021-07-14 16:11:00,707 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:11:00,851 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) [2021-07-14 16:11:00,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:11:00,855 WARN L261 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 273 conjunts are in the unsatisfiable core [2021-07-14 16:11:00,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:11:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 0 proven. 2178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:11:05,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343598956] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:11:05,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:11:05,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 74] total 131 [2021-07-14 16:11:05,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301070083] [2021-07-14 16:11:05,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 132 states [2021-07-14 16:11:05,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:11:05,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-07-14 16:11:05,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1752, Invalid=15540, Unknown=0, NotChecked=0, Total=17292 [2021-07-14 16:11:05,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:11:05,594 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:11:05,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 132 states, 132 states have (on average 2.212121212121212) internal successors, (292), 131 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:11:05,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:05,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:05,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:11:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:11:07,699 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-14 16:11:08,023 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:11:08,385 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:11:08,767 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-14 16:11:09,171 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-14 16:11:09,595 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-14 16:11:10,052 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-14 16:11:10,604 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-14 16:11:11,137 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2021-07-14 16:11:11,823 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 130 [2021-07-14 16:11:12,407 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 128 [2021-07-14 16:11:13,102 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 130 [2021-07-14 16:11:13,679 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 128 [2021-07-14 16:11:14,250 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 129 [2021-07-14 16:11:14,690 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 127 [2021-07-14 16:11:15,114 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 16:11:15,496 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 16:11:15,840 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 16:11:16,168 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 16:11:16,474 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 16:11:16,762 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:11:17,033 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:11:17,285 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:11:17,540 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-14 16:11:19,391 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 125 [2021-07-14 16:11:19,951 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 129 [2021-07-14 16:11:20,392 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 127 [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:11:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:11:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:11:24,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable170 [2021-07-14 16:11:24,138 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:11:24,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:11:24,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1671093307, now seen corresponding path program 18 times [2021-07-14 16:11:24,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:11:24,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398379509] [2021-07-14 16:11:24,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:11:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:11:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 324 proven. 2126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:11:26,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:11:26,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398379509] [2021-07-14 16:11:26,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398379509] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:11:26,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360102803] [2021-07-14 16:11:26,163 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:11:26,350 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 52 check-sat command(s) [2021-07-14 16:11:26,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:11:26,353 WARN L261 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 289 conjunts are in the unsatisfiable core [2021-07-14 16:11:26,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:11:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:11:31,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360102803] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:11:31,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:11:31,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 78] total 138 [2021-07-14 16:11:31,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968168454] [2021-07-14 16:11:31,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 139 states [2021-07-14 16:11:31,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:11:31,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2021-07-14 16:11:31,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1934, Invalid=17248, Unknown=0, NotChecked=0, Total=19182 [2021-07-14 16:11:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:11:31,604 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:11:31,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 139 states, 139 states have (on average 2.2158273381294964) internal successors, (308), 138 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:11:31,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:11:31,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:11:34,137 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:11:34,495 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:11:34,876 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-14 16:11:35,284 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-14 16:11:35,721 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-14 16:11:36,185 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-14 16:11:36,697 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-14 16:11:37,273 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-14 16:11:37,841 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 133 [2021-07-14 16:11:38,578 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 137 [2021-07-14 16:11:39,194 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 135 [2021-07-14 16:11:39,919 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 137 [2021-07-14 16:11:40,539 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 135 [2021-07-14 16:11:41,167 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 136 [2021-07-14 16:11:41,642 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 134 [2021-07-14 16:11:42,097 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 16:11:42,500 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 16:11:42,879 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 16:11:43,236 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 16:11:43,591 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 16:11:43,907 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 16:11:44,204 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:11:44,483 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:11:44,745 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:11:46,990 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 132 [2021-07-14 16:11:47,567 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 136 [2021-07-14 16:11:48,037 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 134 [2021-07-14 16:11:51,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:11:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:11:52,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:11:52,170 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:11:52,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:11:52,171 INFO L82 PathProgramCache]: Analyzing trace with hash -429400833, now seen corresponding path program 19 times [2021-07-14 16:11:52,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:11:52,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442816538] [2021-07-14 16:11:52,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:11:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:11:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 361 proven. 2377 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:11:54,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:11:54,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442816538] [2021-07-14 16:11:54,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442816538] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:11:54,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567231076] [2021-07-14 16:11:54,320 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:11:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:11:54,401 WARN L261 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 305 conjunts are in the unsatisfiable core [2021-07-14 16:11:54,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:12:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 0 proven. 2738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:12:00,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567231076] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:12:00,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:12:00,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 82] total 145 [2021-07-14 16:12:00,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224118783] [2021-07-14 16:12:00,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 146 states [2021-07-14 16:12:00,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:12:00,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2021-07-14 16:12:00,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2123, Invalid=19047, Unknown=0, NotChecked=0, Total=21170 [2021-07-14 16:12:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:12:00,183 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:12:00,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 146 states, 146 states have (on average 2.219178082191781) internal successors, (324), 145 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:12:00,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:12:00,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:12:00,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:12:02,787 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-14 16:12:03,161 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-14 16:12:03,554 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-14 16:12:03,967 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-14 16:12:04,425 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-07-14 16:12:04,893 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2021-07-14 16:12:05,388 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-07-14 16:12:05,925 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 126 [2021-07-14 16:12:06,551 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2021-07-14 16:12:07,177 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 140 [2021-07-14 16:12:07,948 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 144 [2021-07-14 16:12:08,609 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 142 [2021-07-14 16:12:09,398 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 144 [2021-07-14 16:12:10,058 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 142 [2021-07-14 16:12:10,706 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 143 [2021-07-14 16:12:11,209 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 141 [2021-07-14 16:12:11,718 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-14 16:12:12,147 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-14 16:12:12,554 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-14 16:12:12,936 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-14 16:12:13,296 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-14 16:12:13,636 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 16:12:13,978 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 16:12:14,280 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 16:12:14,563 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 16:12:14,826 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 16:12:16,987 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 139 [2021-07-14 16:12:17,620 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 143 [2021-07-14 16:12:18,123 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 141 [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:12:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:12:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:12:22,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable172 [2021-07-14 16:12:22,664 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:12:22,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:12:22,664 INFO L82 PathProgramCache]: Analyzing trace with hash 101014211, now seen corresponding path program 20 times [2021-07-14 16:12:22,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:12:22,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847201594] [2021-07-14 16:12:22,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:12:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:12:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 400 proven. 2642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:12:24,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:12:24,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847201594] [2021-07-14 16:12:24,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847201594] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:12:24,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410418753] [2021-07-14 16:12:24,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:12:24,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:12:24,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:12:24,821 WARN L261 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 321 conjunts are in the unsatisfiable core [2021-07-14 16:12:24,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:12:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 3042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:12:31,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410418753] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:12:31,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:12:31,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 86] total 152 [2021-07-14 16:12:31,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064005538] [2021-07-14 16:12:31,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 153 states [2021-07-14 16:12:31,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:12:31,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2021-07-14 16:12:31,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2325, Invalid=20931, Unknown=0, NotChecked=0, Total=23256 [2021-07-14 16:12:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:12:31,121 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:12:31,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 153 states, 153 states have (on average 2.2222222222222223) internal successors, (340), 152 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:12:31,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:12:31,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:12:33,434 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-14 16:12:33,823 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:12:34,207 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:12:34,630 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-14 16:12:35,068 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-14 16:12:35,525 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-14 16:12:36,017 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-14 16:12:36,526 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-14 16:12:37,085 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-14 16:12:37,654 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2021-07-14 16:12:38,306 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140 [2021-07-14 16:12:38,975 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 147 [2021-07-14 16:12:39,767 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 151 [2021-07-14 16:12:40,463 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 149 [2021-07-14 16:12:41,263 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 151 [2021-07-14 16:12:41,979 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 149 [2021-07-14 16:12:42,659 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 150 [2021-07-14 16:12:43,197 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 148 [2021-07-14 16:12:43,736 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-14 16:12:44,195 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-14 16:12:44,634 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 16:12:45,059 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 16:12:45,457 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 16:12:45,830 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 16:12:46,205 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 16:12:46,539 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 16:12:46,856 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:12:47,151 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:12:47,429 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:12:49,872 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 146 [2021-07-14 16:12:50,524 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 150 [2021-07-14 16:12:51,091 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 148 [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:12:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:12:56,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:12:56,256 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:12:56,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:12:56,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1539478919, now seen corresponding path program 21 times [2021-07-14 16:12:56,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:12:56,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094294838] [2021-07-14 16:12:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:12:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:12:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 441 proven. 2921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:12:58,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:12:58,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094294838] [2021-07-14 16:12:58,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094294838] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:12:58,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377997579] [2021-07-14 16:12:58,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:12:58,870 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 61 check-sat command(s) [2021-07-14 16:12:58,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:12:58,875 WARN L261 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 337 conjunts are in the unsatisfiable core [2021-07-14 16:12:58,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:13:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 0 proven. 3362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:13:05,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377997579] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:13:05,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:13:05,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 90] total 159 [2021-07-14 16:13:05,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212818895] [2021-07-14 16:13:05,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 160 states [2021-07-14 16:13:05,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:13:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2021-07-14 16:13:05,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2532, Invalid=22908, Unknown=0, NotChecked=0, Total=25440 [2021-07-14 16:13:05,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:13:05,825 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:13:05,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 160 states, 160 states have (on average 2.225) internal successors, (356), 159 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:13:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:13:05,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:13:05,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:13:05,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:13:05,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:13:05,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:13:05,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:13:08,565 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-14 16:13:08,945 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-14 16:13:09,356 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-14 16:13:09,807 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-14 16:13:10,262 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-07-14 16:13:10,770 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2021-07-14 16:13:11,298 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-07-14 16:13:11,847 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 126 [2021-07-14 16:13:12,458 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2021-07-14 16:13:13,064 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 140 [2021-07-14 16:13:13,761 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 147 [2021-07-14 16:13:14,477 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 154 [2021-07-14 16:13:15,345 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 158 [2021-07-14 16:13:16,085 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 156 [2021-07-14 16:13:16,949 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 158 [2021-07-14 16:13:17,678 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 156 [2021-07-14 16:13:18,397 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 157 [2021-07-14 16:13:18,969 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 155 [2021-07-14 16:13:19,550 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-14 16:13:20,041 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-14 16:13:20,507 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-14 16:13:20,951 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-14 16:13:21,372 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-14 16:13:21,791 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-14 16:13:22,167 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-14 16:13:22,527 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 16:13:22,866 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 16:13:23,185 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 16:13:23,484 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 16:13:23,763 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 16:13:26,118 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 153 [2021-07-14 16:13:26,835 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 157 [2021-07-14 16:13:27,409 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 155 [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:13:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:13:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:13:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:13:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:13:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:13:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-14 16:13:32,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:13:32,862 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:13:32,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:13:32,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1963012789, now seen corresponding path program 22 times [2021-07-14 16:13:32,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:13:32,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435284790] [2021-07-14 16:13:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:13:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:13:35,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 484 proven. 3214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:13:35,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:13:35,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435284790] [2021-07-14 16:13:35,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435284790] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:13:35,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882734702] [2021-07-14 16:13:35,307 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:13:35,393 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:13:35,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:13:35,397 WARN L261 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 333 conjunts are in the unsatisfiable core [2021-07-14 16:13:35,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:13:43,971 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-07-14 16:13:44,321 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2021-07-14 16:13:46,809 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-07-14 16:13:48,897 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:13:49,012 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:13:51,919 WARN L205 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:13:52,413 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:13:53,044 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:13:54,603 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:13:57,454 WARN L205 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-07-14 16:13:58,128 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2021-07-14 16:13:58,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 0 proven. 3698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:13:58,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882734702] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:13:58,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:13:58,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 94] total 166 [2021-07-14 16:13:58,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123710403] [2021-07-14 16:13:58,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 167 states [2021-07-14 16:13:58,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:13:58,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2021-07-14 16:13:58,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2540, Invalid=25182, Unknown=0, NotChecked=0, Total=27722 [2021-07-14 16:13:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:13:58,599 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:13:58,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 167 states, 167 states have (on average 2.2275449101796405) internal successors, (372), 166 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:13:58,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2021-07-14 16:13:58,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:14:01,896 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:14:02,334 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:14:02,802 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-14 16:14:03,291 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-14 16:14:03,816 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-14 16:14:04,362 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-14 16:14:04,930 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-14 16:14:05,569 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-14 16:14:06,200 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2021-07-14 16:14:06,855 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140 [2021-07-14 16:14:07,535 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 147 [2021-07-14 16:14:08,353 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 154 [2021-07-14 16:14:09,148 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 161 [2021-07-14 16:14:10,119 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 165 [2021-07-14 16:14:10,946 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 163 [2021-07-14 16:14:11,918 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 165 [2021-07-14 16:14:12,746 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 163 [2021-07-14 16:14:13,558 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 164 [2021-07-14 16:14:14,193 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 162 [2021-07-14 16:14:14,816 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-14 16:14:15,365 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-14 16:14:15,886 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-14 16:14:16,395 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-14 16:14:16,877 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 16:14:17,344 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 16:14:17,781 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 16:14:18,196 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 16:14:18,606 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 16:14:18,983 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 16:14:19,340 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:14:19,681 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:14:20,003 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:14:22,920 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 160 [2021-07-14 16:14:23,713 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 164 [2021-07-14 16:14:24,349 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 162 [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-14 16:14:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-07-14 16:14:31,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:14:31,381 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:14:31,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:14:31,381 INFO L82 PathProgramCache]: Analyzing trace with hash 891896335, now seen corresponding path program 23 times [2021-07-14 16:14:31,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:14:31,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949381397] [2021-07-14 16:14:31,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:14:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:14:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 529 proven. 3521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:14:33,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:14:33,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949381397] [2021-07-14 16:14:33,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949381397] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:14:33,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559994001] [2021-07-14 16:14:33,997 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:14:34,217 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2021-07-14 16:14:34,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:14:34,221 WARN L261 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 369 conjunts are in the unsatisfiable core [2021-07-14 16:14:34,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:14:42,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 0 proven. 4050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:14:42,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559994001] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:14:42,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:14:42,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 98] total 173 [2021-07-14 16:14:42,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423728695] [2021-07-14 16:14:42,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 174 states [2021-07-14 16:14:42,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:14:42,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2021-07-14 16:14:42,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2979, Invalid=27123, Unknown=0, NotChecked=0, Total=30102 [2021-07-14 16:14:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:14:42,328 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:14:42,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 174 states, 174 states have (on average 2.2298850574712645) internal successors, (388), 173 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:14:42,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2021-07-14 16:14:42,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:14:44,818 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-14 16:14:45,194 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-07-14 16:14:45,612 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2021-07-14 16:14:46,035 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2021-07-14 16:14:46,495 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-07-14 16:14:46,980 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-07-14 16:14:47,492 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-07-14 16:14:48,028 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-07-14 16:14:48,641 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-07-14 16:14:49,243 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2021-07-14 16:14:49,874 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140 [2021-07-14 16:14:50,529 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 147 [2021-07-14 16:14:51,235 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 154 [2021-07-14 16:14:52,020 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 161 [2021-07-14 16:14:52,796 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 168 [2021-07-14 16:14:53,737 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 172 [2021-07-14 16:14:54,592 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 170 [2021-07-14 16:14:55,545 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 172 [2021-07-14 16:14:56,385 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 170 [2021-07-14 16:14:57,207 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 171 [2021-07-14 16:14:57,847 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 169 [2021-07-14 16:14:58,479 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 167 [2021-07-14 16:14:59,047 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-07-14 16:14:59,591 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-07-14 16:15:00,131 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-07-14 16:15:00,621 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-07-14 16:15:01,085 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-07-14 16:15:01,533 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-07-14 16:15:01,954 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-07-14 16:15:02,353 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-07-14 16:15:02,764 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-07-14 16:15:03,121 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-07-14 16:15:03,459 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-07-14 16:15:03,781 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-07-14 16:15:04,081 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-07-14 16:15:06,832 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 167 [2021-07-14 16:15:07,597 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 171 [2021-07-14 16:15:08,238 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 169 [2021-07-14 16:15:14,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:15:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:15:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:15:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:15:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:15:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-14 16:15:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-07-14 16:15:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2021-07-14 16:15:14,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:15:14,649 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:15:14,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:15:14,649 INFO L82 PathProgramCache]: Analyzing trace with hash -306105389, now seen corresponding path program 24 times [2021-07-14 16:15:14,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:15:14,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510197768] [2021-07-14 16:15:14,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:15:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:15:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 576 proven. 3842 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:15:17,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:15:17,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510197768] [2021-07-14 16:15:17,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510197768] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:15:17,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116919023] [2021-07-14 16:15:17,508 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:15:17,955 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 70 check-sat command(s) [2021-07-14 16:15:17,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:15:17,964 WARN L261 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 385 conjunts are in the unsatisfiable core [2021-07-14 16:15:17,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:15:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4418 backedges. 0 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:15:26,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116919023] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:15:26,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:15:26,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 102] total 180 [2021-07-14 16:15:26,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774597643] [2021-07-14 16:15:26,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 181 states [2021-07-14 16:15:26,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:15:26,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2021-07-14 16:15:26,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3213, Invalid=29367, Unknown=0, NotChecked=0, Total=32580 [2021-07-14 16:15:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:15:26,657 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:15:26,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 181 states, 181 states have (on average 2.2320441988950277) internal successors, (404), 180 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:15:26,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2021-07-14 16:15:26,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:15:29,521 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-07-14 16:15:29,933 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-07-14 16:15:30,369 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-07-14 16:15:30,855 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-07-14 16:15:31,340 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-07-14 16:15:31,849 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2021-07-14 16:15:32,390 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-07-14 16:15:32,952 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 126 [2021-07-14 16:15:33,575 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2021-07-14 16:15:34,199 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 140 [2021-07-14 16:15:34,844 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 147 [2021-07-14 16:15:35,537 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 154 [2021-07-14 16:15:36,284 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 161 [2021-07-14 16:15:37,107 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 168 [2021-07-14 16:15:37,913 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 175 [2021-07-14 16:15:38,911 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 179 [2021-07-14 16:15:39,779 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 177 [2021-07-14 16:15:40,753 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 179 [2021-07-14 16:15:41,616 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 177 [2021-07-14 16:15:42,476 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 178 [2021-07-14 16:15:43,146 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 176 [2021-07-14 16:15:43,808 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-07-14 16:15:44,399 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2021-07-14 16:15:44,992 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 160 [2021-07-14 16:15:45,538 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-07-14 16:15:46,058 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-07-14 16:15:46,556 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-07-14 16:15:47,028 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-07-14 16:15:47,505 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-07-14 16:15:47,931 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-07-14 16:15:48,335 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-07-14 16:15:48,731 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-07-14 16:15:49,094 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-07-14 16:15:49,435 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-07-14 16:15:49,762 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-07-14 16:15:50,064 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-07-14 16:15:52,734 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 174 [2021-07-14 16:15:53,562 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 178 [2021-07-14 16:15:54,238 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 176 [2021-07-14 16:16:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:16:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-07-14 16:16:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2021-07-14 16:16:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2021-07-14 16:16:01,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable234 [2021-07-14 16:16:01,115 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:16:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:16:01,116 INFO L82 PathProgramCache]: Analyzing trace with hash 777380503, now seen corresponding path program 25 times [2021-07-14 16:16:01,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:16:01,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038656707] [2021-07-14 16:16:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:16:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:16:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4802 backedges. 625 proven. 4177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:16:04,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:16:04,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038656707] [2021-07-14 16:16:04,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038656707] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:16:04,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346641309] [2021-07-14 16:16:04,184 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:16:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:16:04,320 WARN L261 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 378 conjunts are in the unsatisfiable core [2021-07-14 16:16:04,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:16:15,033 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2021-07-14 16:16:15,153 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2021-07-14 16:16:15,765 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-07-14 16:16:16,067 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2021-07-14 16:16:16,501 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:16:16,898 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:16:17,083 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2021-07-14 16:16:17,745 WARN L205 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:16:19,946 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2021-07-14 16:16:20,372 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-14 16:16:21,430 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-14 16:16:22,517 WARN L205 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-14 16:16:22,934 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-14 16:16:23,103 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-07-14 16:16:23,932 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:16:24,223 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:16:24,491 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:16:24,651 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:16:25,046 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2021-07-14 16:16:27,523 WARN L205 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2021-07-14 16:16:28,043 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:16:34,722 WARN L205 SmtUtils]: Spent 6.68 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-07-14 16:17:51,739 WARN L205 SmtUtils]: Spent 1.28 m on a formula simplification. DAG size of input: 75 DAG size of output: 75 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown