/usr/bin/java -Xmx16000000000 -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-Sleep-NoLbe-New_States.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-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-20 00:35:33,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-20 00:35:33,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-20 00:35:33,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-20 00:35:33,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-20 00:35:33,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-20 00:35:33,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-20 00:35:33,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-20 00:35:33,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-20 00:35:33,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-20 00:35:33,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-20 00:35:33,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-20 00:35:33,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-20 00:35:33,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-20 00:35:33,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-20 00:35:33,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-20 00:35:33,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-20 00:35:33,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-20 00:35:33,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-20 00:35:33,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-20 00:35:33,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-20 00:35:33,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-20 00:35:33,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-20 00:35:33,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-20 00:35:33,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-20 00:35:33,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-20 00:35:33,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-20 00:35:33,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-20 00:35:33,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-20 00:35:33,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-20 00:35:33,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-20 00:35:33,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-20 00:35:33,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-20 00:35:33,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-20 00:35:33,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-20 00:35:33,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-20 00:35:33,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-20 00:35:33,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-20 00:35:33,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-20 00:35:33,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-20 00:35:33,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-20 00:35:33,940 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-Sleep-NoLbe-New_States.epf [2021-02-20 00:35:33,969 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-20 00:35:33,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-20 00:35:33,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-20 00:35:33,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-20 00:35:33,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-20 00:35:33,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-20 00:35:33,972 INFO L138 SettingsManager]: * Use SBE=true [2021-02-20 00:35:33,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-20 00:35:33,972 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-20 00:35:33,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-20 00:35:33,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-20 00:35:33,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-20 00:35:33,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-20 00:35:33,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-20 00:35:33,975 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-02-20 00:35:33,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-20 00:35:34,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-20 00:35:34,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-20 00:35:34,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-20 00:35:34,264 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-20 00:35:34,265 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-20 00:35:34,266 INFO L432 ainManager$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 [2021-02-20 00:35:34,266 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2021-02-20 00:35:34,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-20 00:35:34,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-20 00:35:34,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-20 00:35:34,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-20 00:35:34,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-20 00:35:34,297 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,301 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-20 00:35:34,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-20 00:35:34,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-20 00:35:34,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-20 00:35:34,312 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,312 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,313 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,313 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,315 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,317 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,318 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 20.02 12:35:34" (1/1) ... [2021-02-20 00:35:34,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-20 00:35:34,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-20 00:35:34,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-20 00:35:34,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-20 00:35:34,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:35:34" (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 [2021-02-20 00:35:34,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-20 00:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-20 00:35:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-20 00:35:34,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-20 00:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-20 00:35:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-20 00:35:34,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-20 00:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-20 00:35:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-20 00:35:34,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-20 00:35:34,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-20 00:35:34,577 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-20 00:35:34,582 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:35:34 BoogieIcfgContainer [2021-02-20 00:35:34,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-20 00:35:34,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-20 00:35:34,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-20 00:35:34,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-20 00:35:34,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:35:34" (1/2) ... [2021-02-20 00:35:34,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d888af4 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:35:34, skipping insertion in model container [2021-02-20 00:35:34,587 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 20.02 12:35:34" (2/2) ... [2021-02-20 00:35:34,590 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2021-02-20 00:35:34,597 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-20 00:35:34,598 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-20 00:35:34,600 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-20 00:35:34,601 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-20 00:35:34,645 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-20 00:35:34,656 INFO L253 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 [2021-02-20 00:35:34,740 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-20 00:35:34,740 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-20 00:35:34,740 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-20 00:35:34,740 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-20 00:35:34,740 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-20 00:35:34,740 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-20 00:35:34,740 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-20 00:35:34,740 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-20 00:35:34,813 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:34,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:34,817 INFO L82 PathProgramCache]: Analyzing trace with hash 345587261, now seen corresponding path program 1 times [2021-02-20 00:35:34,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:34,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531300393] [2021-02-20 00:35:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:34,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531300393] [2021-02-20 00:35:34,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53870789] [2021-02-20 00:35:34,980 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 [2021-02-20 00:35:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:35,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-20 00:35:35,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:35,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:35,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:35,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-02-20 00:35:35,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133784557] [2021-02-20 00:35:35,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-20 00:35:35,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:35,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-20 00:35:35,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-20 00:35:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:35,161 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:35,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 00:35:35,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:35,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-02-20 00:35:35,445 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:35,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:35,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1367486075, now seen corresponding path program 2 times [2021-02-20 00:35:35,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:35,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203684145] [2021-02-20 00:35:35,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:35,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203684145] [2021-02-20 00:35:35,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827521069] [2021-02-20 00:35:35,597 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 [2021-02-20 00:35:35,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 00:35:35,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:35:35,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 20 conjunts are in the unsatisfiable core [2021-02-20 00:35:35,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:35,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:35,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:35,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-02-20 00:35:35,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293445592] [2021-02-20 00:35:35,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-20 00:35:35,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:35,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-20 00:35:35,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-02-20 00:35:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:35,912 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:35,912 INFO L481 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) [2021-02-20 00:35:35,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:35,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:36,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:35:36,386 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:36,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:36,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1051369015, now seen corresponding path program 3 times [2021-02-20 00:35:36,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:36,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193082637] [2021-02-20 00:35:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:36,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193082637] [2021-02-20 00:35:36,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344667039] [2021-02-20 00:35:36,604 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 [2021-02-20 00:35:36,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-02-20 00:35:36,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:35:36,626 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-20 00:35:36,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:36,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:36,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-02-20 00:35:36,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818038634] [2021-02-20 00:35:36,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-20 00:35:36,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:36,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-20 00:35:36,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2021-02-20 00:35:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:36,903 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:36,903 INFO L481 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) [2021-02-20 00:35:36,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:36,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:36,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:37,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:35:37,386 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:37,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:37,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1028562609, now seen corresponding path program 4 times [2021-02-20 00:35:37,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:37,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681531985] [2021-02-20 00:35:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:37,712 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:37,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681531985] [2021-02-20 00:35:37,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371934637] [2021-02-20 00:35:37,712 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 [2021-02-20 00:35:37,746 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 00:35:37,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:35:37,747 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 49 conjunts are in the unsatisfiable core [2021-02-20 00:35:37,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:38,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:38,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2021-02-20 00:35:38,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363817850] [2021-02-20 00:35:38,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-20 00:35:38,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:38,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-20 00:35:38,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=973, Unknown=0, NotChecked=0, Total=1122 [2021-02-20 00:35:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:38,135 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:38,136 INFO L481 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) [2021-02-20 00:35:38,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:38,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:38,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:38,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:39,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:35:39,774 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:39,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:39,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1604606893, now seen corresponding path program 5 times [2021-02-20 00:35:39,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:39,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609462078] [2021-02-20 00:35:39,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:40,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609462078] [2021-02-20 00:35:40,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928813029] [2021-02-20 00:35:40,090 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 [2021-02-20 00:35:40,127 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-02-20 00:35:40,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:35:40,128 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 65 conjunts are in the unsatisfiable core [2021-02-20 00:35:40,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:40,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:40,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22] total 40 [2021-02-20 00:35:40,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329699459] [2021-02-20 00:35:40,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-02-20 00:35:40,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:40,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-02-20 00:35:40,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1435, Unknown=0, NotChecked=0, Total=1640 [2021-02-20 00:35:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:40,714 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:40,714 INFO L481 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) [2021-02-20 00:35:40,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:40,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:40,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:40,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:40,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:42,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:42,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:35:42,564 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:42,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:42,564 INFO L82 PathProgramCache]: Analyzing trace with hash 733498793, now seen corresponding path program 6 times [2021-02-20 00:35:42,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:42,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799957373] [2021-02-20 00:35:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 25 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:42,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799957373] [2021-02-20 00:35:42,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666837697] [2021-02-20 00:35:42,955 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 [2021-02-20 00:35:42,988 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-02-20 00:35:42,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:35:42,990 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 81 conjunts are in the unsatisfiable core [2021-02-20 00:35:42,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:43,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:43,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 47 [2021-02-20 00:35:43,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50211055] [2021-02-20 00:35:43,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-02-20 00:35:43,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:43,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-02-20 00:35:43,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1988, Unknown=0, NotChecked=0, Total=2256 [2021-02-20 00:35:43,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:43,698 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:43,699 INFO L481 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) [2021-02-20 00:35:43,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:43,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:43,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:43,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:43,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:43,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:35:45,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:35:45,887 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:45,887 INFO L82 PathProgramCache]: Analyzing trace with hash 852767909, now seen corresponding path program 7 times [2021-02-20 00:35:45,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:45,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563056697] [2021-02-20 00:35:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 36 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563056697] [2021-02-20 00:35:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110808286] [2021-02-20 00:35:46,304 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 [2021-02-20 00:35:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:46,332 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 93 conjunts are in the unsatisfiable core [2021-02-20 00:35:46,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:47,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:47,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 30] total 54 [2021-02-20 00:35:47,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291567061] [2021-02-20 00:35:47,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-02-20 00:35:47,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:47,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-02-20 00:35:47,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2640, Unknown=0, NotChecked=0, Total=2970 [2021-02-20 00:35:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:47,349 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:47,349 INFO L481 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) [2021-02-20 00:35:47,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:47,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:47,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:47,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:47,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:47,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:35:47,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:49,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:49,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:49,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:35:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:35:50,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-02-20 00:35:50,158 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:50,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:50,158 INFO L82 PathProgramCache]: Analyzing trace with hash -699281247, now seen corresponding path program 8 times [2021-02-20 00:35:50,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:50,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424809454] [2021-02-20 00:35:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 49 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:50,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424809454] [2021-02-20 00:35:50,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728133065] [2021-02-20 00:35:50,674 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 [2021-02-20 00:35:50,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 00:35:50,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:35:50,706 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 108 conjunts are in the unsatisfiable core [2021-02-20 00:35:50,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:51,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:51,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 34] total 61 [2021-02-20 00:35:51,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301177848] [2021-02-20 00:35:51,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-02-20 00:35:51,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:51,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-02-20 00:35:51,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3374, Unknown=0, NotChecked=0, Total=3782 [2021-02-20 00:35:51,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:51,968 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:51,969 INFO L481 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) [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:35:51,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:35:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:35:55,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-02-20 00:35:55,346 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:35:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:35:55,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1134223773, now seen corresponding path program 9 times [2021-02-20 00:35:55,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:35:55,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241346298] [2021-02-20 00:35:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:35:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:35:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 64 proven. 386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:55,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241346298] [2021-02-20 00:35:55,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69890205] [2021-02-20 00:35:55,956 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 [2021-02-20 00:35:56,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-02-20 00:35:56,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:35:56,004 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 125 conjunts are in the unsatisfiable core [2021-02-20 00:35:56,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:35:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:35:57,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:35:57,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 38] total 68 [2021-02-20 00:35:57,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665173486] [2021-02-20 00:35:57,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-02-20 00:35:57,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:35:57,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-02-20 00:35:57,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=4187, Unknown=0, NotChecked=0, Total=4692 [2021-02-20 00:35:57,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:35:57,476 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:35:57,476 INFO L481 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) [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:35:57,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:01,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:36:01,280 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:36:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:36:01,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1881745305, now seen corresponding path program 10 times [2021-02-20 00:36:01,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:36:01,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004167861] [2021-02-20 00:36:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:36:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:36:01,972 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 81 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:01,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004167861] [2021-02-20 00:36:01,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626362054] [2021-02-20 00:36:01,972 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 [2021-02-20 00:36:02,005 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 00:36:02,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:36:02,007 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 138 conjunts are in the unsatisfiable core [2021-02-20 00:36:02,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:36:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:03,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:36:03,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 42] total 75 [2021-02-20 00:36:03,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029494562] [2021-02-20 00:36:03,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-02-20 00:36:03,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:36:03,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-02-20 00:36:03,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=590, Invalid=5110, Unknown=0, NotChecked=0, Total=5700 [2021-02-20 00:36:03,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:03,902 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:36:03,903 INFO L481 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) [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:03,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:05,232 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-02-20 00:36:06,878 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-02-20 00:36:07,094 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2021-02-20 00:36:07,309 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:08,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-02-20 00:36:08,788 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:36:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:36:08,789 INFO L82 PathProgramCache]: Analyzing trace with hash 361128597, now seen corresponding path program 11 times [2021-02-20 00:36:08,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:36:08,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609353882] [2021-02-20 00:36:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:36:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:36:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 100 proven. 622 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:09,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609353882] [2021-02-20 00:36:09,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839012620] [2021-02-20 00:36:09,633 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 [2021-02-20 00:36:09,692 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2021-02-20 00:36:09,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:36:09,694 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 161 conjunts are in the unsatisfiable core [2021-02-20 00:36:09,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:36:11,607 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:11,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:36:11,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 46] total 82 [2021-02-20 00:36:11,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960428346] [2021-02-20 00:36:11,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-02-20 00:36:11,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:36:11,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-02-20 00:36:11,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=730, Invalid=6076, Unknown=0, NotChecked=0, Total=6806 [2021-02-20 00:36:11,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:11,609 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:36:11,609 INFO L481 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) [2021-02-20 00:36:11,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:11,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:11,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:11,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:11,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:11,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:11,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:11,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:11,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:11,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:11,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:13,052 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-02-20 00:36:13,282 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-02-20 00:36:14,649 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-02-20 00:36:14,951 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-02-20 00:36:15,192 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2021-02-20 00:36:15,428 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-02-20 00:36:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:17,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:36:17,094 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:36:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:36:17,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1387507055, now seen corresponding path program 12 times [2021-02-20 00:36:17,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:36:17,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261580006] [2021-02-20 00:36:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:36:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:36:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 121 proven. 761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:18,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261580006] [2021-02-20 00:36:18,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241189518] [2021-02-20 00:36:18,015 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 [2021-02-20 00:36:18,102 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-02-20 00:36:18,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:36:18,106 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 174 conjunts are in the unsatisfiable core [2021-02-20 00:36:18,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:36:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:20,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:36:20,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 50] total 89 [2021-02-20 00:36:20,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657760903] [2021-02-20 00:36:20,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-02-20 00:36:20,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:36:20,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-02-20 00:36:20,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=841, Invalid=7169, Unknown=0, NotChecked=0, Total=8010 [2021-02-20 00:36:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:20,494 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:36:20,494 INFO L481 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) [2021-02-20 00:36:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:20,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:20,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:20,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:20,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:20,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:20,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:20,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:22,064 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2021-02-20 00:36:22,320 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-02-20 00:36:22,527 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-02-20 00:36:24,012 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-02-20 00:36:24,356 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2021-02-20 00:36:24,635 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2021-02-20 00:36:24,893 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-02-20 00:36:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:36:26,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-02-20 00:36:26,801 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:36:26,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:36:26,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1831122829, now seen corresponding path program 13 times [2021-02-20 00:36:26,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:36:26,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330631474] [2021-02-20 00:36:26,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:36:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:36:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 144 proven. 914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:27,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330631474] [2021-02-20 00:36:27,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708781147] [2021-02-20 00:36:27,867 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 [2021-02-20 00:36:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:36:27,912 WARN L261 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 183 conjunts are in the unsatisfiable core [2021-02-20 00:36:27,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:36:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 0 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:31,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:36:31,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 54] total 96 [2021-02-20 00:36:31,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455226114] [2021-02-20 00:36:31,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-02-20 00:36:31,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:36:31,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-02-20 00:36:31,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=920, Invalid=8392, Unknown=0, NotChecked=0, Total=9312 [2021-02-20 00:36:31,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:31,077 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:36:31,077 INFO L481 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) [2021-02-20 00:36:31,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:31,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:31,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:36:31,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:33,006 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2021-02-20 00:36:33,299 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-02-20 00:36:33,549 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-02-20 00:36:33,775 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-02-20 00:36:33,986 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-02-20 00:36:35,524 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2021-02-20 00:36:35,935 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 94 [2021-02-20 00:36:36,256 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2021-02-20 00:36:36,565 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2021-02-20 00:36:38,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:36:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:36:39,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:36:39,014 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:36:39,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:36:39,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1120489865, now seen corresponding path program 14 times [2021-02-20 00:36:39,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:36:39,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009422558] [2021-02-20 00:36:39,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:36:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:36:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 169 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:40,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009422558] [2021-02-20 00:36:40,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165467149] [2021-02-20 00:36:40,197 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 [2021-02-20 00:36:40,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 00:36:40,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:36:40,243 WARN L261 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 209 conjunts are in the unsatisfiable core [2021-02-20 00:36:40,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:36:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 0 proven. 1250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:43,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:36:43,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 58] total 103 [2021-02-20 00:36:43,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345334260] [2021-02-20 00:36:43,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-02-20 00:36:43,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:36:43,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-02-20 00:36:43,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1112, Invalid=9600, Unknown=0, NotChecked=0, Total=10712 [2021-02-20 00:36:43,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:43,446 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:36:43,447 INFO L481 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) [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:36:43,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:45,250 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 99 [2021-02-20 00:36:45,567 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-20 00:36:45,829 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-20 00:36:46,071 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-20 00:36:46,295 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-20 00:36:46,501 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-20 00:36:47,899 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2021-02-20 00:36:48,315 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2021-02-20 00:36:48,648 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2021-02-20 00:36:48,987 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:36:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:36:51,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-02-20 00:36:51,366 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:36:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:36:51,366 INFO L82 PathProgramCache]: Analyzing trace with hash -805052283, now seen corresponding path program 15 times [2021-02-20 00:36:51,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:36:51,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643161151] [2021-02-20 00:36:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:36:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:36:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 196 proven. 1262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:52,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643161151] [2021-02-20 00:36:52,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971202354] [2021-02-20 00:36:52,731 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 [2021-02-20 00:36:52,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-02-20 00:36:52,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:36:52,850 WARN L261 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 220 conjunts are in the unsatisfiable core [2021-02-20 00:36:52,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:36:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 0 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:36:56,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:36:56,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 62] total 110 [2021-02-20 00:36:56,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195672837] [2021-02-20 00:36:56,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-02-20 00:36:56,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:36:56,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-02-20 00:36:56,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1241, Invalid=10969, Unknown=0, NotChecked=0, Total=12210 [2021-02-20 00:36:56,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:56,693 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:36:56,694 INFO L481 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) [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:36:56,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:36:59,162 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2021-02-20 00:36:59,529 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-02-20 00:36:59,829 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-20 00:37:00,111 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-20 00:37:00,371 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-20 00:37:00,612 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-20 00:37:00,842 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-20 00:37:02,409 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2021-02-20 00:37:02,893 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-02-20 00:37:03,272 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 106 [2021-02-20 00:37:03,650 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:37:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:37:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:37:06,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:37:06,947 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:37:06,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:37:06,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1722688641, now seen corresponding path program 16 times [2021-02-20 00:37:06,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:37:06,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138895946] [2021-02-20 00:37:06,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:37:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:37:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 225 proven. 1457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:37:08,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138895946] [2021-02-20 00:37:08,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197849166] [2021-02-20 00:37:08,467 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 [2021-02-20 00:37:08,516 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 00:37:08,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:37:08,519 WARN L261 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 241 conjunts are in the unsatisfiable core [2021-02-20 00:37:08,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:37:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 0 proven. 1682 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:37:12,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:37:12,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 66] total 117 [2021-02-20 00:37:12,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743132586] [2021-02-20 00:37:12,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-02-20 00:37:12,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:37:12,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-02-20 00:37:12,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1415, Invalid=12391, Unknown=0, NotChecked=0, Total=13806 [2021-02-20 00:37:12,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:37:12,771 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:37:12,771 INFO L481 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) [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:37:12,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:37:12,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:37:15,470 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 113 [2021-02-20 00:37:15,891 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-02-20 00:37:16,248 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-02-20 00:37:16,577 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-02-20 00:37:16,884 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-02-20 00:37:17,183 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-02-20 00:37:17,447 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-02-20 00:37:17,695 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-02-20 00:37:19,469 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-02-20 00:37:20,022 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 115 [2021-02-20 00:37:20,454 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 113 [2021-02-20 00:37:20,882 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 115 [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:37:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:37:24,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:37:24,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-02-20 00:37:24,568 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:37:24,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:37:24,568 INFO L82 PathProgramCache]: Analyzing trace with hash 78765437, now seen corresponding path program 17 times [2021-02-20 00:37:24,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:37:24,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420560578] [2021-02-20 00:37:24,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:37:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:37:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 256 proven. 1666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:37:26,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420560578] [2021-02-20 00:37:26,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363948477] [2021-02-20 00:37:26,353 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 [2021-02-20 00:37:26,495 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2021-02-20 00:37:26,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:37:26,498 WARN L261 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 257 conjunts are in the unsatisfiable core [2021-02-20 00:37:26,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:37:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:37:31,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:37:31,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 70] total 124 [2021-02-20 00:37:31,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389546980] [2021-02-20 00:37:31,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 125 states [2021-02-20 00:37:31,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:37:31,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-02-20 00:37:31,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1577, Invalid=13923, Unknown=0, NotChecked=0, Total=15500 [2021-02-20 00:37:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:37:31,546 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:37:31,546 INFO L481 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) [2021-02-20 00:37:31,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:37:31,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:37:31,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:37:31,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:37:35,000 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 120 [2021-02-20 00:37:35,481 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-02-20 00:37:35,876 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-20 00:37:36,246 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-02-20 00:37:36,592 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-20 00:37:36,923 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-20 00:37:37,222 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-20 00:37:37,498 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-20 00:37:37,755 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-20 00:37:37,995 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-02-20 00:37:39,616 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2021-02-20 00:37:40,232 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 122 [2021-02-20 00:37:40,719 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 120 [2021-02-20 00:37:41,204 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 122 [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:37:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:37:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:37:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:37:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:37:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:37:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:37:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:37:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:37:46,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-02-20 00:37:46,022 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:37:46,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:37:46,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1342753657, now seen corresponding path program 18 times [2021-02-20 00:37:46,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:37:46,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298376352] [2021-02-20 00:37:46,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:37:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:37:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 289 proven. 1889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:37:48,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298376352] [2021-02-20 00:37:48,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912530175] [2021-02-20 00:37:48,131 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 [2021-02-20 00:37:48,291 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-02-20 00:37:48,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:37:48,295 WARN L261 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 273 conjunts are in the unsatisfiable core [2021-02-20 00:37:48,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:37:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2178 backedges. 0 proven. 2178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:37:54,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:37:54,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 74] total 131 [2021-02-20 00:37:54,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447080227] [2021-02-20 00:37:54,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 132 states [2021-02-20 00:37:54,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:37:54,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-02-20 00:37:54,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1752, Invalid=15540, Unknown=0, NotChecked=0, Total=17292 [2021-02-20 00:37:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:37:54,292 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:37:54,292 INFO L481 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) [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:37:54,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:37:57,877 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 127 [2021-02-20 00:37:58,445 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-02-20 00:37:58,919 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-02-20 00:37:59,374 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-02-20 00:37:59,805 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-02-20 00:38:00,204 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-02-20 00:38:00,575 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-02-20 00:38:00,923 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-02-20 00:38:01,263 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-02-20 00:38:01,561 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-02-20 00:38:01,838 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-02-20 00:38:02,092 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-02-20 00:38:03,864 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 125 [2021-02-20 00:38:04,599 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 129 [2021-02-20 00:38:05,185 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 127 [2021-02-20 00:38:05,765 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 129 [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:38:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:38:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:38:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:38:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:38:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:38:10,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:38:11,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-02-20 00:38:11,199 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:38:11,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:38:11,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1833128331, now seen corresponding path program 19 times [2021-02-20 00:38:11,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:38:11,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032426803] [2021-02-20 00:38:11,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:38:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:38:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 324 proven. 2126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:38:13,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032426803] [2021-02-20 00:38:13,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435022675] [2021-02-20 00:38:13,901 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 [2021-02-20 00:38:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:38:13,962 WARN L261 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 273 conjunts are in the unsatisfiable core [2021-02-20 00:38:13,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:38:23,020 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-20 00:38:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:38:23,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:38:23,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 78] total 138 [2021-02-20 00:38:23,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322653323] [2021-02-20 00:38:23,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 139 states [2021-02-20 00:38:23,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:38:23,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2021-02-20 00:38:23,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1796, Invalid=17386, Unknown=0, NotChecked=0, Total=19182 [2021-02-20 00:38:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:38:23,307 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:38:23,307 INFO L481 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) [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:38:23,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:38:23,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:38:23,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:38:23,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:38:23,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:38:23,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:38:23,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:38:28,485 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 134 [2021-02-20 00:38:29,244 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-02-20 00:38:29,893 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-02-20 00:38:30,541 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-02-20 00:38:31,145 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-02-20 00:38:31,717 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-02-20 00:38:32,270 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-02-20 00:38:32,785 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-02-20 00:38:33,261 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-02-20 00:38:33,712 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-02-20 00:38:34,135 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-02-20 00:38:34,536 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-02-20 00:38:34,905 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-02-20 00:38:35,249 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-02-20 00:38:37,557 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 132 [2021-02-20 00:38:38,602 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 136 [2021-02-20 00:38:39,423 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 134 [2021-02-20 00:38:40,247 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 136 [2021-02-20 00:38:49,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:38:49,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:38:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:38:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:38:49,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-02-20 00:38:49,543 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:38:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:38:49,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1226357135, now seen corresponding path program 20 times [2021-02-20 00:38:49,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:38:49,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112673105] [2021-02-20 00:38:49,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:38:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:38:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 361 proven. 2377 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:38:53,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112673105] [2021-02-20 00:38:53,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590438154] [2021-02-20 00:38:53,567 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 [2021-02-20 00:38:53,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 00:38:53,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:38:53,632 WARN L261 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 288 conjunts are in the unsatisfiable core [2021-02-20 00:38:53,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:39:07,170 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-20 00:39:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2738 backedges. 0 proven. 2738 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:39:07,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:39:07,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 82] total 145 [2021-02-20 00:39:07,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598065540] [2021-02-20 00:39:07,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 146 states [2021-02-20 00:39:07,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:39:07,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2021-02-20 00:39:07,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1968, Invalid=19202, Unknown=0, NotChecked=0, Total=21170 [2021-02-20 00:39:07,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:39:07,502 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:39:07,503 INFO L481 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) [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:39:07,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:39:16,257 WARN L202 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 141 [2021-02-20 00:39:17,399 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-02-20 00:39:18,383 WARN L202 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-02-20 00:39:19,331 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-02-20 00:39:20,217 WARN L202 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-02-20 00:39:21,034 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-20 00:39:21,842 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-02-20 00:39:22,609 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-20 00:39:23,303 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-20 00:39:23,935 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-20 00:39:24,521 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-20 00:39:25,106 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-20 00:39:25,639 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-02-20 00:39:26,159 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-02-20 00:39:26,620 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-02-20 00:39:27,031 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-02-20 00:39:29,583 WARN L202 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 139 [2021-02-20 00:39:31,157 WARN L202 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 143 [2021-02-20 00:39:32,365 WARN L202 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 141 [2021-02-20 00:39:33,533 WARN L202 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 143 [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:39:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:39:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2021-02-20 00:39:48,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable161 [2021-02-20 00:39:48,889 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:39:48,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:39:48,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1118983021, now seen corresponding path program 21 times [2021-02-20 00:39:48,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:39:48,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676633233] [2021-02-20 00:39:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:39:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:39:54,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 400 proven. 2642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:39:54,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676633233] [2021-02-20 00:39:54,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054139174] [2021-02-20 00:39:54,828 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 [2021-02-20 00:39:55,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-02-20 00:39:55,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:39:55,096 WARN L261 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 321 conjunts are in the unsatisfiable core [2021-02-20 00:39:55,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:40:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3042 backedges. 0 proven. 3042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:40:12,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:40:12,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 86] total 152 [2021-02-20 00:40:12,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48787793] [2021-02-20 00:40:12,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 153 states [2021-02-20 00:40:12,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:40:12,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2021-02-20 00:40:12,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2325, Invalid=20931, Unknown=0, NotChecked=0, Total=23256 [2021-02-20 00:40:12,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:40:12,881 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:40:12,882 INFO L481 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) [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2021-02-20 00:40:12,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:40:20,651 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:40:21,635 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2021-02-20 00:40:22,083 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 27 [2021-02-20 00:40:23,563 WARN L202 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 148 [2021-02-20 00:40:25,083 WARN L202 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-02-20 00:40:26,483 WARN L202 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-02-20 00:40:27,764 WARN L202 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-02-20 00:40:28,969 WARN L202 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-02-20 00:40:30,110 WARN L202 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-02-20 00:40:31,191 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-02-20 00:40:32,384 WARN L202 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-02-20 00:40:33,382 WARN L202 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-02-20 00:40:34,279 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2021-02-20 00:40:35,137 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-02-20 00:40:35,946 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-02-20 00:40:36,694 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-02-20 00:40:37,368 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-02-20 00:40:37,985 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-02-20 00:40:38,557 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-02-20 00:40:39,080 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2021-02-20 00:40:39,585 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2021-02-20 00:40:40,042 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-02-20 00:40:42,941 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 168 DAG size of output: 146 [2021-02-20 00:40:45,046 WARN L202 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 150 [2021-02-20 00:40:46,594 WARN L202 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 148 [2021-02-20 00:40:48,132 WARN L202 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 150 [2021-02-20 00:40:48,634 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2021-02-20 00:40:54,654 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:40:55,710 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:40:56,714 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:41:01,444 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:41:03,268 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:41:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:41:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2021-02-20 00:41:06,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2021-02-20 00:41:06,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:41:06,808 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:41:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:41:06,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1415026025, now seen corresponding path program 22 times [2021-02-20 00:41:06,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:41:06,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380100901] [2021-02-20 00:41:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:41:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:41:14,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 441 proven. 2921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:41:14,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380100901] [2021-02-20 00:41:14,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468972026] [2021-02-20 00:41:14,962 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 [2021-02-20 00:41:15,037 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 00:41:15,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:41:15,040 WARN L261 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 318 conjunts are in the unsatisfiable core [2021-02-20 00:41:15,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:41:37,889 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-20 00:41:39,446 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-20 00:41:40,038 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-20 00:41:40,651 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-20 00:41:41,250 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-20 00:41:41,875 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-20 00:41:42,501 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-20 00:41:43,234 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-20 00:41:44,300 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-20 00:41:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3362 backedges. 0 proven. 3362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:41:44,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:41:44,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 90] total 159 [2021-02-20 00:41:44,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316334095] [2021-02-20 00:41:44,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 160 states [2021-02-20 00:41:44,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:41:44,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2021-02-20 00:41:44,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2340, Invalid=23100, Unknown=0, NotChecked=0, Total=25440 [2021-02-20 00:41:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:41:44,962 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:41:44,962 INFO L481 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) [2021-02-20 00:41:44,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:41:44,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:41:44,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 146 states. [2021-02-20 00:41:44,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:41:55,410 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2021-02-20 00:41:56,869 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2021-02-20 00:41:57,539 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:41:58,237 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2021-02-20 00:41:58,945 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-02-20 00:41:59,722 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:00,465 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2021-02-20 00:42:00,920 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 22 [2021-02-20 00:42:01,395 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2021-02-20 00:42:02,213 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 27 [2021-02-20 00:42:04,379 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 180 DAG size of output: 155 [2021-02-20 00:42:06,950 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-02-20 00:42:09,045 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-02-20 00:42:11,205 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-02-20 00:42:13,232 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-02-20 00:42:14,921 WARN L202 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-02-20 00:42:16,551 WARN L202 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-02-20 00:42:18,070 WARN L202 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-20 00:42:19,522 WARN L202 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-02-20 00:42:20,937 WARN L202 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-20 00:42:22,394 WARN L202 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-20 00:42:23,680 WARN L202 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-20 00:42:24,830 WARN L202 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-20 00:42:25,979 WARN L202 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-20 00:42:26,992 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-02-20 00:42:27,963 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-02-20 00:42:28,841 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-02-20 00:42:29,614 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-02-20 00:42:30,320 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2021-02-20 00:42:31,010 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2021-02-20 00:42:34,652 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 171 DAG size of output: 153 [2021-02-20 00:42:37,606 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 176 DAG size of output: 157 [2021-02-20 00:42:38,059 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-02-20 00:42:39,804 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 179 DAG size of output: 155 [2021-02-20 00:42:40,240 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2021-02-20 00:42:42,022 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 177 DAG size of output: 157 [2021-02-20 00:42:42,830 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2021-02-20 00:42:44,337 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:45,251 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2021-02-20 00:42:45,977 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:47,577 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:48,494 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2021-02-20 00:42:49,220 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:50,613 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:52,091 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:53,547 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:54,929 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:56,311 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:57,587 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:42:58,829 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:43:00,051 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:43:01,401 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:43:02,734 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:43:04,029 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:43:05,292 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:43:06,544 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:43:07,741 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2021-02-20 00:43:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2021-02-20 00:43:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2021-02-20 00:43:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2021-02-20 00:43:10,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable207 [2021-02-20 00:43:10,174 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:43:10,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:43:10,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1642017691, now seen corresponding path program 23 times [2021-02-20 00:43:10,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:43:10,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567271673] [2021-02-20 00:43:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:43:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:43:11,948 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-02-20 00:43:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 484 proven. 3214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:43:20,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567271673] [2021-02-20 00:43:20,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131775569] [2021-02-20 00:43:20,043 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 [2021-02-20 00:43:20,363 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2021-02-20 00:43:20,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:43:20,366 WARN L261 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 353 conjunts are in the unsatisfiable core [2021-02-20 00:43:20,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:43:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3698 backedges. 0 proven. 3698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:43:53,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:43:53,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 94] total 166 [2021-02-20 00:43:53,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338916562] [2021-02-20 00:43:53,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 167 states [2021-02-20 00:43:53,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:43:53,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2021-02-20 00:43:53,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2752, Invalid=24970, Unknown=0, NotChecked=0, Total=27722 [2021-02-20 00:43:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:43:53,099 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:43:53,100 INFO L481 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) [2021-02-20 00:43:53,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-02-20 00:43:53,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:43:53,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 146 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2021-02-20 00:43:53,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:44:06,430 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2021-02-20 00:44:07,075 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:44:07,706 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2021-02-20 00:44:08,302 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-02-20 00:44:08,982 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2021-02-20 00:44:09,649 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2021-02-20 00:44:10,042 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 22 [2021-02-20 00:44:10,470 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2021-02-20 00:44:11,185 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 27 [2021-02-20 00:44:13,594 WARN L202 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 193 DAG size of output: 162 [2021-02-20 00:44:16,272 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 185 DAG size of output: 160 [2021-02-20 00:44:18,562 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2021-02-20 00:44:20,739 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 169 DAG size of output: 146 [2021-02-20 00:44:22,956 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 161 DAG size of output: 139 [2021-02-20 00:44:25,043 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2021-02-20 00:44:26,973 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2021-02-20 00:44:28,780 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 137 DAG size of output: 118 [2021-02-20 00:44:30,565 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2021-02-20 00:44:32,302 WARN L202 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-02-20 00:44:33,934 WARN L202 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2021-02-20 00:44:35,456 WARN L202 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 Received shutdown request... [2021-02-20 00:44:36,867 WARN L219 SmtUtils]: Removed 5 from assertion stack [2021-02-20 00:44:37,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:44:37,068 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-20 00:44:37,071 WARN L224 ceAbstractionStarter]: Timeout [2021-02-20 00:44:37,072 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 12:44:37 BasicIcfg [2021-02-20 00:44:37,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-20 00:44:37,072 INFO L168 Benchmark]: Toolchain (without parser) took 542788.71 ms. Allocated memory was 346.0 MB in the beginning and 440.4 MB in the end (delta: 94.4 MB). Free memory was 326.4 MB in the beginning and 185.1 MB in the end (delta: 141.3 MB). Peak memory consumption was 235.0 MB. Max. memory is 16.0 GB. [2021-02-20 00:44:37,072 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 346.0 MB. Free memory was 327.5 MB in the beginning and 327.4 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:44:37,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.74 ms. Allocated memory is still 346.0 MB. Free memory was 325.9 MB in the beginning and 324.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:44:37,072 INFO L168 Benchmark]: Boogie Preprocessor took 12.74 ms. Allocated memory is still 346.0 MB. Free memory was 324.5 MB in the beginning and 323.5 MB in the end (delta: 961.4 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-02-20 00:44:37,072 INFO L168 Benchmark]: RCFGBuilder took 262.29 ms. Allocated memory is still 346.0 MB. Free memory was 323.4 MB in the beginning and 311.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-02-20 00:44:37,072 INFO L168 Benchmark]: TraceAbstraction took 542487.66 ms. Allocated memory was 346.0 MB in the beginning and 440.4 MB in the end (delta: 94.4 MB). Free memory was 311.3 MB in the beginning and 185.1 MB in the end (delta: 126.2 MB). Peak memory consumption was 220.3 MB. Max. memory is 16.0 GB. [2021-02-20 00:44:37,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 346.0 MB. Free memory was 327.5 MB in the beginning and 327.4 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.74 ms. Allocated memory is still 346.0 MB. Free memory was 325.9 MB in the beginning and 324.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.74 ms. Allocated memory is still 346.0 MB. Free memory was 324.5 MB in the beginning and 323.5 MB in the end (delta: 961.4 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 262.29 ms. Allocated memory is still 346.0 MB. Free memory was 323.4 MB in the beginning and 311.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 542487.66 ms. Allocated memory was 346.0 MB in the beginning and 440.4 MB in the end (delta: 94.4 MB). Free memory was 311.3 MB in the beginning and 185.1 MB in the end (delta: 126.2 MB). Peak memory consumption was 220.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 49). Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 97 for 690ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 542.4s, OverallIterations: 23, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 185.1s InterpolantComputationTime, 4570 NumberOfCodeBlocks, 4570 NumberOfCodeBlocksAsserted, 404 NumberOfCheckSat, 4524 ConstructedInterpolants, 0 QuantifiedInterpolants, 9800490 SizeOfPredicates, 112 NumberOfNonLiveVariables, 5494 ConjunctsInSsa, 3984 ConjunctsInUnsatCore, 46 InterpolantComputations, 0 PerfectInterpolantSequences, 3795/56760 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown