/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-2-nl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 23:22:49,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 23:22:49,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 23:22:49,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 23:22:49,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 23:22:49,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 23:22:49,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 23:22:49,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 23:22:49,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 23:22:49,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 23:22:49,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 23:22:49,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 23:22:49,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 23:22:49,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 23:22:49,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 23:22:49,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 23:22:49,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 23:22:49,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 23:22:49,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 23:22:49,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 23:22:49,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 23:22:49,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 23:22:49,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 23:22:49,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 23:22:49,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-13 23:22:49,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-13 23:22:49,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-13 23:22:49,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-13 23:22:49,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-13 23:22:49,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-13 23:22:49,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-13 23:22:49,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-13 23:22:49,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-13 23:22:49,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-13 23:22:49,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-13 23:22:49,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-13 23:22:49,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-13 23:22:49,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-13 23:22:49,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 23:22:49,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 23:22:49,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 23:22:49,609 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf [2021-07-13 23:22:49,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 23:22:49,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 23:22:49,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 23:22:49,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 23:22:49,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 23:22:49,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 23:22:49,644 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 23:22:49,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 23:22:49,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 23:22:49,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 23:22:49,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 23:22:49,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 23:22:49,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 23:22:49,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 23:22:49,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 23:22:49,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 23:22:49,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 23:22:49,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 23:22:49,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 23:22:49,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 23:22:49,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 23:22:49,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 23:22:49,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 23:22:49,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 23:22:49,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 23:22:49,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 23:22:49,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 23:22:49,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 23:22:49,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 23:22:49,648 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 23:22:49,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-13 23:22:49,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 23:22:49,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 23:22:49,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 23:22:49,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 23:22:50,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 23:22:50,001 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-13 23:22:50,005 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-13 23:22:50,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-2-nl.wvr.bpl [2021-07-13 23:22:50,006 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-2-nl.wvr.bpl' [2021-07-13 23:22:50,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 23:22:50,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-13 23:22:50,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 23:22:50,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 23:22:50,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 23:22:50,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 23:22:50,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 23:22:50,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 23:22:50,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 23:22:50,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... [2021-07-13 23:22:50,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 23:22:50,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 23:22:50,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 23:22:50,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 23:22:50,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 23:22:50,152 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-13 23:22:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 23:22:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 23:22:50,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-13 23:22:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 23:22:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 23:22:50,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-13 23:22:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 23:22:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 23:22:50,154 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 23:22:50,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 23:22:50,337 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-13 23:22:50,339 INFO L202 PluginConnector]: Adding new model queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:22:50 BoogieIcfgContainer [2021-07-13 23:22:50,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 23:22:50,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 23:22:50,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 23:22:50,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 23:22:50,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:22:50" (1/2) ... [2021-07-13 23:22:50,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b70c91 and model type queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:22:50, skipping insertion in model container [2021-07-13 23:22:50,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:22:50" (2/2) ... [2021-07-13 23:22:50,345 INFO L111 eAbstractionObserver]: Analyzing ICFG queue-add-2-nl.wvr.bpl [2021-07-13 23:22:50,350 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 23:22:50,350 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 23:22:50,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 23:22:50,351 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 23:22:50,375 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-13 23:22:50,395 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-13 23:22:50,451 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 23:22:50,451 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 23:22:50,451 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 23:22:50,451 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 23:22:50,451 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 23:22:50,451 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 23:22:50,451 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 23:22:50,452 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 23:22:50,459 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 29 transitions, 74 flow [2021-07-13 23:22:50,478 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 104 states, 103 states have (on average 1.970873786407767) internal successors, (203), 103 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:22:50,488 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:22:50,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:22:50,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1699388421, now seen corresponding path program 1 times [2021-07-13 23:22:50,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:22:50,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440394979] [2021-07-13 23:22:50,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:22:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:22:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-13 23:22:50,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:22:50,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440394979] [2021-07-13 23:22:50,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440394979] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:50,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730981701] [2021-07-13 23:22:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:22:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:22:50,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-13 23:22:50,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:22:50,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:22:50,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:22:50,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:22:50,923 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:22:50,923 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:22:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-13 23:22:50,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730981701] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:50,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:22:50,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-13 23:22:50,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933359509] [2021-07-13 23:22:50,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 23:22:50,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:22:50,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 23:22:50,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 23:22:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:22:50,986 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:22:50,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:22:50,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:22:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:22:51,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-13 23:22:51,253 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:22:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:22:51,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1084126297, now seen corresponding path program 2 times [2021-07-13 23:22:51,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:22:51,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45563135] [2021-07-13 23:22:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:22:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:22:52,293 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:22:52,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:22:52,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45563135] [2021-07-13 23:22:52,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45563135] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:52,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021244377] [2021-07-13 23:22:52,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:22:52,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:22:52,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:22:52,392 WARN L261 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-13 23:22:52,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:22:53,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:22:53,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:22:53,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:22:53,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2021-07-13 23:22:53,515 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:22:53,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:22:53,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:22:53,531 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:27 [2021-07-13 23:22:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:22:53,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021244377] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:53,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:22:53,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 45 [2021-07-13 23:22:53,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707327558] [2021-07-13 23:22:53,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-13 23:22:53,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:22:53,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-13 23:22:53,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1943, Unknown=0, NotChecked=0, Total=2070 [2021-07-13 23:22:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:22:53,970 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:22:53,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 45 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:22:53,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:22:53,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:22:54,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:22:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:22:54,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:22:54,550 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:22:54,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:22:54,551 INFO L82 PathProgramCache]: Analyzing trace with hash 359008405, now seen corresponding path program 3 times [2021-07-13 23:22:54,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:22:54,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819831143] [2021-07-13 23:22:54,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:22:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:22:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:22:54,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:22:54,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819831143] [2021-07-13 23:22:54,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819831143] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:54,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084912396] [2021-07-13 23:22:54,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:22:54,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-13 23:22:54,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:22:54,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-13 23:22:54,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:22:54,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:22:54,881 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:22:54,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:22:54,883 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:22:54,885 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:22:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:22:54,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084912396] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:54,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:22:54,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-07-13 23:22:54,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146452429] [2021-07-13 23:22:54,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 23:22:54,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:22:54,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 23:22:54,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:22:54,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:22:54,933 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:22:54,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 17 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:22:54,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:22:54,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:22:54,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:22:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:22:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:22:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:22:55,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:22:55,349 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:22:55,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:22:55,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1322679343, now seen corresponding path program 4 times [2021-07-13 23:22:55,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:22:55,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449865983] [2021-07-13 23:22:55,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:22:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:22:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:22:56,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:22:56,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449865983] [2021-07-13 23:22:56,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449865983] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:57,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439323784] [2021-07-13 23:22:57,000 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:22:57,041 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-13 23:22:57,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:22:57,042 WARN L261 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 80 conjunts are in the unsatisfiable core [2021-07-13 23:22:57,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:22:59,000 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-07-13 23:22:59,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 22 [2021-07-13 23:22:59,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:22:59,011 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:22:59,013 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:22:59,013 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:20 [2021-07-13 23:22:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:22:59,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439323784] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:22:59,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:22:59,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 35] total 73 [2021-07-13 23:22:59,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365496126] [2021-07-13 23:22:59,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-07-13 23:22:59,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:22:59,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-07-13 23:22:59,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=5213, Unknown=0, NotChecked=0, Total=5402 [2021-07-13 23:22:59,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:22:59,526 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:22:59,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 1.527027027027027) internal successors, (113), 73 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:22:59,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:22:59,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:22:59,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:22:59,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:00,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:00,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:00,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:00,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:01,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:01,063 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:01,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:01,063 INFO L82 PathProgramCache]: Analyzing trace with hash 916652301, now seen corresponding path program 5 times [2021-07-13 23:23:01,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:01,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016662060] [2021-07-13 23:23:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:01,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:23:01,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016662060] [2021-07-13 23:23:01,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016662060] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:01,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081996447] [2021-07-13 23:23:01,280 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:01,322 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-13 23:23:01,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:23:01,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-13 23:23:01,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:23:01,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:23:01,535 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:23:01,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:23:01,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:23:01,537 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:23:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:01,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081996447] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:01,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:23:01,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-07-13 23:23:01,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150773105] [2021-07-13 23:23:01,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 23:23:01,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:23:01,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 23:23:01,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-07-13 23:23:01,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:01,561 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:23:01,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.5) internal successors, (117), 25 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:23:01,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:01,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:01,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:01,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:01,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:02,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:02,111 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:02,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1435865271, now seen corresponding path program 6 times [2021-07-13 23:23:02,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:02,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037754304] [2021-07-13 23:23:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:04,595 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:04,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:23:04,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037754304] [2021-07-13 23:23:04,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037754304] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:04,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212668363] [2021-07-13 23:23:04,595 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:04,641 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-13 23:23:04,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:23:04,643 WARN L261 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 114 conjunts are in the unsatisfiable core [2021-07-13 23:23:04,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:23:08,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,222 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:23:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:23:08,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 30 [2021-07-13 23:23:08,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:23:08,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:23:08,247 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:23:08,248 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:106, output treesize:27 [2021-07-13 23:23:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:08,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212668363] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:08,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:23:08,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 49] total 87 [2021-07-13 23:23:08,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078098525] [2021-07-13 23:23:08,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-07-13 23:23:08,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:23:08,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-07-13 23:23:08,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=7422, Unknown=0, NotChecked=0, Total=7656 [2021-07-13 23:23:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:08,883 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:23:08,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 1.5) internal successors, (132), 87 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:23:08,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:08,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:08,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:08,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:08,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:08,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:10,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:10,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:10,629 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:10,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:10,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1991404155, now seen corresponding path program 7 times [2021-07-13 23:23:10,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:10,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632355003] [2021-07-13 23:23:10,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:10,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:23:10,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632355003] [2021-07-13 23:23:10,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632355003] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:10,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380869664] [2021-07-13 23:23:10,913 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:10,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-13 23:23:10,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:23:11,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:23:11,338 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:23:11,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:23:11,340 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:23:11,340 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:23:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:11,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380869664] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:11,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:23:11,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2021-07-13 23:23:11,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157610098] [2021-07-13 23:23:11,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-13 23:23:11,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:23:11,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-13 23:23:11,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1040, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 23:23:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:11,369 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:23:11,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 4.5) internal successors, (153), 33 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:23:11,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:11,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:11,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:11,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:11,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:11,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:11,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:12,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-13 23:23:12,064 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:12,064 INFO L82 PathProgramCache]: Analyzing trace with hash 971880129, now seen corresponding path program 8 times [2021-07-13 23:23:12,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:12,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024461339] [2021-07-13 23:23:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:16,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:23:16,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024461339] [2021-07-13 23:23:16,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024461339] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:16,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286255020] [2021-07-13 23:23:16,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:16,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:23:16,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:23:16,236 WARN L261 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 144 conjunts are in the unsatisfiable core [2021-07-13 23:23:16,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:23:22,695 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-07-13 23:23:22,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 102 treesize of output 38 [2021-07-13 23:23:22,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:23:22,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:23:22,705 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:23:22,705 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:115, output treesize:20 [2021-07-13 23:23:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:23,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286255020] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:23,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:23:23,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 59] total 125 [2021-07-13 23:23:23,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182012787] [2021-07-13 23:23:23,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 126 states [2021-07-13 23:23:23,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:23:23,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2021-07-13 23:23:23,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=15429, Unknown=0, NotChecked=0, Total=15750 [2021-07-13 23:23:23,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:23,580 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:23:23,581 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 126 states, 126 states have (on average 1.4682539682539681) internal successors, (185), 125 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:23,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:23:27,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:27,183 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:27,183 INFO L82 PathProgramCache]: Analyzing trace with hash -998095363, now seen corresponding path program 9 times [2021-07-13 23:23:27,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:27,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328891162] [2021-07-13 23:23:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:27,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:23:27,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328891162] [2021-07-13 23:23:27,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328891162] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:27,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923910585] [2021-07-13 23:23:27,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:27,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-07-13 23:23:27,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:23:27,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-13 23:23:27,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:23:28,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:23:28,106 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:23:28,107 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:23:28,107 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:23:28,107 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:23:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:28,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923910585] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:28,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:23:28,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2021-07-13 23:23:28,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375474912] [2021-07-13 23:23:28,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-13 23:23:28,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:23:28,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-13 23:23:28,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1622, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 23:23:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:28,141 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:23:28,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 4.5) internal successors, (189), 41 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:23:28,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:28,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:28,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:28,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:28,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:28,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:28,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:28,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:23:28,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:28,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:23:28,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:23:29,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:29,177 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:29,178 INFO L82 PathProgramCache]: Analyzing trace with hash -356525511, now seen corresponding path program 10 times [2021-07-13 23:23:29,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:29,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099981557] [2021-07-13 23:23:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:35,083 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:35,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:23:35,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099981557] [2021-07-13 23:23:35,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099981557] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:35,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688459251] [2021-07-13 23:23:35,084 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:35,132 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-13 23:23:35,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:23:35,134 WARN L261 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 176 conjunts are in the unsatisfiable core [2021-07-13 23:23:35,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:23:45,089 INFO L354 Elim1Store]: treesize reduction 540, result has 0.2 percent of original size [2021-07-13 23:23:45,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 126 treesize of output 46 [2021-07-13 23:23:45,092 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:23:45,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:23:45,099 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:23:45,099 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:139, output treesize:20 [2021-07-13 23:23:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:46,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688459251] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:46,164 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:23:46,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 71] total 151 [2021-07-13 23:23:46,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108411469] [2021-07-13 23:23:46,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 152 states [2021-07-13 23:23:46,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:23:46,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2021-07-13 23:23:46,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=22565, Unknown=0, NotChecked=0, Total=22952 [2021-07-13 23:23:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:46,169 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:23:46,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 152 states, 152 states have (on average 1.4539473684210527) internal successors, (221), 151 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:23:46,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:23:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:23:51,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-13 23:23:51,087 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:51,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:51,087 INFO L82 PathProgramCache]: Analyzing trace with hash -656567691, now seen corresponding path program 11 times [2021-07-13 23:23:51,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:51,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766032108] [2021-07-13 23:23:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:23:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 0 proven. 517 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:51,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:23:51,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766032108] [2021-07-13 23:23:51,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766032108] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:51,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859876003] [2021-07-13 23:23:51,507 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:51,560 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-07-13 23:23:51,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:23:51,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-13 23:23:51,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:23:52,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:23:52,283 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:23:52,284 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:23:52,284 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:23:52,284 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:23:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 0 proven. 517 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:23:52,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859876003] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:23:52,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:23:52,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 49 [2021-07-13 23:23:52,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125699070] [2021-07-13 23:23:52,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-07-13 23:23:52,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:23:52,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-07-13 23:23:52,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=2330, Unknown=0, NotChecked=0, Total=2450 [2021-07-13 23:23:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:52,322 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:23:52,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 4.5) internal successors, (225), 49 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:23:52,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:23:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:23:53,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:23:53,641 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:23:53,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:23:53,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1567447473, now seen corresponding path program 12 times [2021-07-13 23:23:53,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:23:53,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490928071] [2021-07-13 23:23:53,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:23:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:24:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 679 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:24:01,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:24:01,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490928071] [2021-07-13 23:24:01,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490928071] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:24:01,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48766917] [2021-07-13 23:24:01,907 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:24:01,965 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-13 23:24:01,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:24:01,968 WARN L261 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 206 conjunts are in the unsatisfiable core [2021-07-13 23:24:01,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:24:16,636 INFO L354 Elim1Store]: treesize reduction 770, result has 0.1 percent of original size [2021-07-13 23:24:16,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 146 treesize of output 54 [2021-07-13 23:24:16,638 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:24:16,646 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:24:16,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:24:16,646 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:159, output treesize:20 [2021-07-13 23:24:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 679 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:24:17,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48766917] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:24:17,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:24:17,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 83] total 177 [2021-07-13 23:24:17,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73780925] [2021-07-13 23:24:17,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 178 states [2021-07-13 23:24:17,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:24:17,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2021-07-13 23:24:17,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=453, Invalid=31053, Unknown=0, NotChecked=0, Total=31506 [2021-07-13 23:24:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:24:17,922 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:24:17,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 178 states, 178 states have (on average 1.4438202247191012) internal successors, (257), 177 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:24:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:24:17,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:24:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:24:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:24:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:24:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:24:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:24:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:24:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:24:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:24:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:24:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:24:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:24:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:24:25,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-13 23:24:25,019 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:24:25,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:24:25,019 INFO L82 PathProgramCache]: Analyzing trace with hash -2005140755, now seen corresponding path program 13 times [2021-07-13 23:24:25,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:24:25,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981990660] [2021-07-13 23:24:25,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:24:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:24:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:24:25,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:24:25,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981990660] [2021-07-13 23:24:25,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981990660] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:24:25,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265140278] [2021-07-13 23:24:25,567 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:24:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:24:25,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 56 conjunts are in the unsatisfiable core [2021-07-13 23:24:25,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:24:26,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:24:26,532 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:24:26,533 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:24:26,533 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:24:26,533 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:24:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:24:26,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265140278] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:24:26,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:24:26,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 57 [2021-07-13 23:24:26,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562083390] [2021-07-13 23:24:26,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-07-13 23:24:26,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:24:26,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-07-13 23:24:26,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=3166, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 23:24:26,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:24:26,576 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:24:26,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 4.5) internal successors, (261), 57 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:24:26,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:24:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:24:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:24:28,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:24:28,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:24:28,210 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:24:28,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:24:28,211 INFO L82 PathProgramCache]: Analyzing trace with hash -536693463, now seen corresponding path program 14 times [2021-07-13 23:24:28,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:24:28,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872987798] [2021-07-13 23:24:28,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:24:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:24:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:24:39,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:24:39,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872987798] [2021-07-13 23:24:39,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872987798] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:24:39,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162683436] [2021-07-13 23:24:39,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:24:39,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:24:39,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:24:39,155 WARN L261 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 240 conjunts are in the unsatisfiable core [2021-07-13 23:24:39,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:24:53,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:24:53,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:24:53,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 91 disjoint index pairs (out of 105 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 62 [2021-07-13 23:24:53,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:24:53,984 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:24:53,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:24:53,985 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:202, output treesize:27 [2021-07-13 23:24:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:24:55,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162683436] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:24:55,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:24:55,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 95] total 165 [2021-07-13 23:24:55,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540474098] [2021-07-13 23:24:55,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 166 states [2021-07-13 23:24:55,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:24:55,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2021-07-13 23:24:55,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=26975, Unknown=0, NotChecked=0, Total=27390 [2021-07-13 23:24:55,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:24:55,359 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:24:55,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 166 states, 166 states have (on average 1.4698795180722892) internal successors, (244), 165 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:24:55,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:24:55,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:24:55,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:24:55,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:24:55,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:24:55,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:24:55,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:25:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:25:04,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:25:04,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-13 23:25:04,538 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:25:04,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:25:04,538 INFO L82 PathProgramCache]: Analyzing trace with hash -17170587, now seen corresponding path program 15 times [2021-07-13 23:25:04,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:25:04,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79011667] [2021-07-13 23:25:04,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:25:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:25:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:25:05,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:25:05,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79011667] [2021-07-13 23:25:05,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79011667] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:25:05,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801356646] [2021-07-13 23:25:05,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:25:05,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-07-13 23:25:05,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:25:05,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 66 conjunts are in the unsatisfiable core [2021-07-13 23:25:05,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:25:06,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:25:06,712 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:25:06,713 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:25:06,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:25:06,713 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:25:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:25:06,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801356646] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:25:06,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:25:06,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 65 [2021-07-13 23:25:06,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743836778] [2021-07-13 23:25:06,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-07-13 23:25:06,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:25:06,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-07-13 23:25:06,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=4128, Unknown=0, NotChecked=0, Total=4290 [2021-07-13 23:25:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:25:06,761 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:25:06,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 4.5) internal successors, (297), 65 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:25:06,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:25:06,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:25:06,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:25:06,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:25:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:25:08,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:25:08,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:25:08,763 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:25:08,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:25:08,763 INFO L82 PathProgramCache]: Analyzing trace with hash 101477537, now seen corresponding path program 16 times [2021-07-13 23:25:08,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:25:08,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003465483] [2021-07-13 23:25:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:25:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:25:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 0 proven. 1193 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:25:24,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:25:24,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003465483] [2021-07-13 23:25:24,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003465483] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:25:24,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121079677] [2021-07-13 23:25:24,011 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:25:24,073 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-13 23:25:24,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:25:24,077 WARN L261 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 272 conjunts are in the unsatisfiable core [2021-07-13 23:25:24,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:25:52,266 INFO L354 Elim1Store]: treesize reduction 1440, result has 0.1 percent of original size [2021-07-13 23:25:52,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 198 treesize of output 70 [2021-07-13 23:25:52,269 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:25:52,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:25:52,282 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:25:52,282 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:211, output treesize:20 [2021-07-13 23:25:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 0 proven. 1193 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:25:54,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121079677] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:25:54,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:25:54,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [123, 107] total 229 [2021-07-13 23:25:54,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501660980] [2021-07-13 23:25:54,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 230 states [2021-07-13 23:25:54,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:25:54,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 230 interpolants. [2021-07-13 23:25:54,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=52085, Unknown=0, NotChecked=0, Total=52670 [2021-07-13 23:25:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:25:54,108 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:25:54,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 230 states, 230 states have (on average 1.4304347826086956) internal successors, (329), 229 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:25:54,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:25:54,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:25:54,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:25:54,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:25:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:26:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:26:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:26:07,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-13 23:26:07,231 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:26:07,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:26:07,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1769218013, now seen corresponding path program 17 times [2021-07-13 23:26:07,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:26:07,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451066095] [2021-07-13 23:26:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:26:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:26:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:26:08,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:26:08,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451066095] [2021-07-13 23:26:08,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451066095] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:26:08,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525427217] [2021-07-13 23:26:08,129 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:26:08,207 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-07-13 23:26:08,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:26:08,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 76 conjunts are in the unsatisfiable core [2021-07-13 23:26:08,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:26:09,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:26:09,728 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:26:09,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:26:09,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:26:09,729 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:26:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 1258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:26:09,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525427217] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:26:09,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:26:09,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 74 [2021-07-13 23:26:09,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281244418] [2021-07-13 23:26:09,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-07-13 23:26:09,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:26:09,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-07-13 23:26:09,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=5367, Unknown=0, NotChecked=0, Total=5550 [2021-07-13 23:26:09,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:26:09,782 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:26:09,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 4.44) internal successors, (333), 74 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:26:09,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:26:09,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:26:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:26:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:26:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:26:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:26:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:26:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:12,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-13 23:26:12,482 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:26:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:26:12,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1903764395, now seen corresponding path program 18 times [2021-07-13 23:26:12,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:26:12,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197145570] [2021-07-13 23:26:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:26:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:26:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 0 proven. 1577 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:26:13,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:26:13,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197145570] [2021-07-13 23:26:13,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197145570] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:26:13,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795407378] [2021-07-13 23:26:13,506 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:26:13,590 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-07-13 23:26:13,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:26:13,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 82 conjunts are in the unsatisfiable core [2021-07-13 23:26:13,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:26:15,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:26:15,414 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:26:15,415 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:26:15,415 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:26:15,415 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:26:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 0 proven. 1577 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:26:15,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795407378] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:26:15,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:26:15,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41] total 81 [2021-07-13 23:26:15,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001710460] [2021-07-13 23:26:15,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-07-13 23:26:15,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:26:15,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-07-13 23:26:15,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=6442, Unknown=0, NotChecked=0, Total=6642 [2021-07-13 23:26:15,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:26:15,472 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:26:15,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 4.5) internal successors, (369), 81 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:26:15,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:26:15,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:26:15,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:26:15,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:15,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:26:18,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:26:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:26:18,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-13 23:26:18,638 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:26:18,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:26:18,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1982787473, now seen corresponding path program 19 times [2021-07-13 23:26:18,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:26:18,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860905102] [2021-07-13 23:26:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:26:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:26:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1851 backedges. 0 proven. 1851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:26:42,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:26:42,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860905102] [2021-07-13 23:26:42,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860905102] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:26:42,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998031430] [2021-07-13 23:26:42,691 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:26:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:26:42,770 WARN L261 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 336 conjunts are in the unsatisfiable core [2021-07-13 23:26:42,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:29,248 INFO L354 Elim1Store]: treesize reduction 2280, result has 0.0 percent of original size [2021-07-13 23:27:29,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 246 treesize of output 86 [2021-07-13 23:27:29,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:27:29,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:27:29,258 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:27:29,258 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:259, output treesize:20 [2021-07-13 23:27:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1851 backedges. 0 proven. 1851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:31,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998031430] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:31,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:31,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [151, 131] total 281 [2021-07-13 23:27:31,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203190343] [2021-07-13 23:27:31,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 282 states [2021-07-13 23:27:31,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:31,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 282 interpolants. [2021-07-13 23:27:31,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=717, Invalid=78525, Unknown=0, NotChecked=0, Total=79242 [2021-07-13 23:27:31,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:31,582 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:31,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 282 states, 282 states have (on average 1.4219858156028369) internal successors, (401), 281 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:27:31,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:27:31,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:49,608 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94 [2021-07-13 23:27:50,422 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:27:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:27:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:27:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:27:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:27:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:27:51,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:51,819 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:51,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:51,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1716434125, now seen corresponding path program 20 times [2021-07-13 23:27:51,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:51,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181315302] [2021-07-13 23:27:51,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:53,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1932 backedges. 0 proven. 1932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:53,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:53,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181315302] [2021-07-13 23:27:53,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181315302] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:53,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798365357] [2021-07-13 23:27:53,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:53,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:27:53,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:53,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 88 conjunts are in the unsatisfiable core [2021-07-13 23:27:53,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:55,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:27:55,449 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:27:55,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:27:55,450 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:27:55,450 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:27:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1932 backedges. 0 proven. 1932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:55,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798365357] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:55,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:55,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 45] total 89 [2021-07-13 23:27:55,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878086834] [2021-07-13 23:27:55,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-07-13 23:27:55,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:55,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-07-13 23:27:55,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=7790, Unknown=0, NotChecked=0, Total=8010 [2021-07-13 23:27:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:55,513 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:55,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 4.5) internal successors, (405), 89 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:27:55,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:27:55,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:27:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:27:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:27:59,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:27:59,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:59,321 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:59,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:59,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1696548087, now seen corresponding path program 21 times [2021-07-13 23:27:59,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:59,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801641538] [2021-07-13 23:27:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:28:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2234 backedges. 0 proven. 2234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:29,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:28:29,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801641538] [2021-07-13 23:28:29,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801641538] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:29,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549850142] [2021-07-13 23:28:29,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:29,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2021-07-13 23:28:29,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:28:29,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 376 conjunts are in the unsatisfiable core [2021-07-13 23:28:29,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:28:55,159 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-07-13 23:29:00,052 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2021-07-13 23:29:31,119 INFO L354 Elim1Store]: treesize reduction 2730, result has 0.0 percent of original size [2021-07-13 23:29:31,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 266 treesize of output 94 [2021-07-13 23:29:31,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:29:31,130 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:29:31,130 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:29:31,130 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:279, output treesize:20 [2021-07-13 23:29:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2234 backedges. 0 proven. 2234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:29:33,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549850142] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:29:33,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:29:33,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [165, 151] total 315 [2021-07-13 23:29:33,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636456220] [2021-07-13 23:29:33,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 316 states [2021-07-13 23:29:33,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:29:33,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 316 interpolants. [2021-07-13 23:29:33,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=831, Invalid=98709, Unknown=0, NotChecked=0, Total=99540 [2021-07-13 23:29:33,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:29:33,735 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:29:33,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 316 states, 316 states have (on average 1.3829113924050633) internal successors, (437), 315 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:29:33,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:29:33,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:29:56,848 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-07-13 23:29:57,771 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:29:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:29:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:29:59,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:29:59,390 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:29:59,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:29:59,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1301796539, now seen corresponding path program 22 times [2021-07-13 23:29:59,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:29:59,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296189956] [2021-07-13 23:29:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:29:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:30:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2323 backedges. 0 proven. 2323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:30:00,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:30:00,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296189956] [2021-07-13 23:30:00,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296189956] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:30:00,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247478710] [2021-07-13 23:30:00,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:30:00,732 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-13 23:30:00,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:30:00,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 96 conjunts are in the unsatisfiable core [2021-07-13 23:30:00,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:30:03,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:30:03,311 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:30:03,312 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:30:03,313 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:30:03,313 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:30:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2323 backedges. 0 proven. 2323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:30:03,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247478710] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:30:03,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:30:03,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49] total 97 [2021-07-13 23:30:03,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433921449] [2021-07-13 23:30:03,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 98 states [2021-07-13 23:30:03,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:30:03,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-07-13 23:30:03,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=9266, Unknown=0, NotChecked=0, Total=9506 [2021-07-13 23:30:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:30:03,380 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:30:03,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 98 states, 98 states have (on average 4.5) internal successors, (441), 97 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:30:03,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:30:03,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:30:03,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:30:03,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:30:03,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:30:03,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:30:03,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:30:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:30:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:30:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:30:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:30:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:30:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:30:07,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-13 23:30:07,868 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:30:07,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:30:07,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1211687553, now seen corresponding path program 23 times [2021-07-13 23:30:07,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:30:07,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761973271] [2021-07-13 23:30:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:30:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:30:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2653 backedges. 0 proven. 2653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:30:44,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:30:44,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761973271] [2021-07-13 23:30:44,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761973271] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:30:44,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145513230] [2021-07-13 23:30:44,697 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:30:44,795 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2021-07-13 23:30:44,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:30:44,800 WARN L261 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 402 conjunts are in the unsatisfiable core [2021-07-13 23:30:44,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:31:57,445 INFO L354 Elim1Store]: treesize reduction 3266, result has 0.0 percent of original size [2021-07-13 23:31:57,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 290 treesize of output 102 [2021-07-13 23:31:57,449 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:31:57,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:31:57,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:31:57,457 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:303, output treesize:20 [2021-07-13 23:32:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2653 backedges. 0 proven. 2653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:32:00,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145513230] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:32:00,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:32:00,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [179, 156] total 334 [2021-07-13 23:32:00,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395838636] [2021-07-13 23:32:00,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 335 states [2021-07-13 23:32:00,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:32:00,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 335 interpolants. [2021-07-13 23:32:00,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=852, Invalid=111038, Unknown=0, NotChecked=0, Total=111890 [2021-07-13 23:32:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:32:00,382 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:32:00,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 335 states, 335 states have (on average 1.4119402985074627) internal successors, (473), 334 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:32:00,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:32:00,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:32:00,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:32:00,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:32:00,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:32:00,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:32:00,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:32:27,705 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 109 [2021-07-13 23:32:28,718 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 111 [2021-07-13 23:32:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:32:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-07-13 23:32:30,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:32:30,434 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:32:30,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:32:30,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1779451459, now seen corresponding path program 24 times [2021-07-13 23:32:30,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:32:30,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233655787] [2021-07-13 23:32:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:32:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:32:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2750 backedges. 0 proven. 2750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:32:31,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:32:31,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233655787] [2021-07-13 23:32:31,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233655787] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:32:31,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216433269] [2021-07-13 23:32:31,950 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:32:32,050 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2021-07-13 23:32:32,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:32:32,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 106 conjunts are in the unsatisfiable core [2021-07-13 23:32:32,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:32:35,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:32:35,085 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:32:35,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:32:35,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:32:35,087 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:32:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2750 backedges. 0 proven. 2750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:32:35,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216433269] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:32:35,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:32:35,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53] total 105 [2021-07-13 23:32:35,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674727943] [2021-07-13 23:32:35,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 106 states [2021-07-13 23:32:35,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:32:35,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-07-13 23:32:35,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=10870, Unknown=0, NotChecked=0, Total=11130 [2021-07-13 23:32:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:32:35,158 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:32:35,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 106 states, 106 states have (on average 4.5) internal successors, (477), 105 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:32:35,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-07-13 23:32:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:32:37,603 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-07-13 23:32:37,784 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2021-07-13 23:32:37,963 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2021-07-13 23:32:38,180 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:32:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-07-13 23:32:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-13 23:32:40,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-07-13 23:32:40,407 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:32:40,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:32:40,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1430513145, now seen corresponding path program 25 times [2021-07-13 23:32:40,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:32:40,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539014835] [2021-07-13 23:32:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:32:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:33:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 0 proven. 3108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:33:23,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:33:23,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539014835] [2021-07-13 23:33:23,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539014835] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:33:23,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130871968] [2021-07-13 23:33:23,454 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:33:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:33:23,555 WARN L261 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 432 conjunts are in the unsatisfiable core [2021-07-13 23:33:23,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:34:51,559 INFO L354 Elim1Store]: treesize reduction 3900, result has 0.0 percent of original size [2021-07-13 23:34:51,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 318 treesize of output 110 [2021-07-13 23:34:51,562 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:34:51,568 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:34:51,568 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:34:51,568 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:331, output treesize:20 [2021-07-13 23:34:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 0 proven. 3108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:34:54,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130871968] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:34:54,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:34:54,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 167] total 359 [2021-07-13 23:34:54,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155345189] [2021-07-13 23:34:54,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 360 states [2021-07-13 23:34:54,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:34:54,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 360 interpolants. [2021-07-13 23:34:54,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=915, Invalid=128325, Unknown=0, NotChecked=0, Total=129240 [2021-07-13 23:34:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:34:54,827 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:34:54,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 360 states, 360 states have (on average 1.413888888888889) internal successors, (509), 359 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:34:54,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:34:54,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-07-13 23:34:54,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-13 23:34:54,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:35:29,201 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 120 [2021-07-13 23:35:30,357 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 122 [2021-07-13 23:35:32,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:35:32,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:35:32,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-13 23:35:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-07-13 23:35:32,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-07-13 23:35:32,302 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:35:32,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:35:32,303 INFO L82 PathProgramCache]: Analyzing trace with hash 763487797, now seen corresponding path program 26 times [2021-07-13 23:35:32,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:35:32,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87597783] [2021-07-13 23:35:32,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:35:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:35:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3213 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:35:33,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:35:33,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87597783] [2021-07-13 23:35:33,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87597783] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:35:33,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229512887] [2021-07-13 23:35:33,997 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 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:35:34,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:35:34,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:35:34,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 112 conjunts are in the unsatisfiable core [2021-07-13 23:35:34,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:35:37,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-13 23:35:37,606 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:35:37,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:35:37,607 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:35:37,607 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-07-13 23:35:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3213 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:35:37,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229512887] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:35:37,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:35:37,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 57] total 113 [2021-07-13 23:35:37,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492574020] [2021-07-13 23:35:37,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 114 states [2021-07-13 23:35:37,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:35:37,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2021-07-13 23:35:37,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=12602, Unknown=0, NotChecked=0, Total=12882 [2021-07-13 23:35:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:35:37,685 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:35:37,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 114 states, 114 states have (on average 4.5) internal successors, (513), 113 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:35:37,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:35:37,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-07-13 23:35:37,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:35:40,620 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-07-13 23:35:40,825 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2021-07-13 23:35:41,027 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2021-07-13 23:35:41,280 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 23:35:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-07-13 23:35:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-13 23:35:43,951 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-07-13 23:35:43,952 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:35:43,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:35:43,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1854817649, now seen corresponding path program 27 times [2021-07-13 23:35:43,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:35:43,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543177075] [2021-07-13 23:35:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:35:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-07-13 23:35:44,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 23:35:44,049 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:140) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:245) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:222) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-13 23:35:44,057 INFO L168 Benchmark]: Toolchain (without parser) took 774031.36 ms. Allocated memory was 191.9 MB in the beginning and 851.4 MB in the end (delta: 659.6 MB). Free memory was 171.6 MB in the beginning and 426.2 MB in the end (delta: -254.6 MB). Peak memory consumption was 406.0 MB. Max. memory is 8.0 GB. [2021-07-13 23:35:44,058 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 191.9 MB. Free memory is still 172.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 23:35:44,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.84 ms. Allocated memory is still 191.9 MB. Free memory was 171.5 MB in the beginning and 170.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 23:35:44,058 INFO L168 Benchmark]: Boogie Preprocessor took 12.25 ms. Allocated memory is still 191.9 MB. Free memory was 170.0 MB in the beginning and 169.1 MB in the end (delta: 954.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 23:35:44,058 INFO L168 Benchmark]: RCFGBuilder took 275.13 ms. Allocated memory is still 191.9 MB. Free memory was 169.0 MB in the beginning and 155.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-13 23:35:44,058 INFO L168 Benchmark]: TraceAbstraction took 773715.66 ms. Allocated memory was 191.9 MB in the beginning and 851.4 MB in the end (delta: 659.6 MB). Free memory was 155.1 MB in the beginning and 426.2 MB in the end (delta: -271.1 MB). Peak memory consumption was 389.2 MB. Max. memory is 8.0 GB. [2021-07-13 23:35:44,058 INFO L339 ainManager$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 191.9 MB. Free memory is still 172.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.84 ms. Allocated memory is still 191.9 MB. Free memory was 171.5 MB in the beginning and 170.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.25 ms. Allocated memory is still 191.9 MB. Free memory was 170.0 MB in the beginning and 169.1 MB in the end (delta: 954.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 275.13 ms. Allocated memory is still 191.9 MB. Free memory was 169.0 MB in the beginning and 155.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 773715.66 ms. Allocated memory was 191.9 MB in the beginning and 851.4 MB in the end (delta: 659.6 MB). Free memory was 155.1 MB in the beginning and 426.2 MB in the end (delta: -271.1 MB). Peak memory consumption was 389.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:260) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown