/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:20:24,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:20:24,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:20:24,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 21:20:24,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 21:20:24,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 21:20:24,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 21:20:24,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 21:20:24,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 21:20:24,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 21:20:24,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 21:20:24,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 21:20:24,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 21:20:24,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 21:20:24,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 21:20:24,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 21:20:24,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 21:20:24,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 21:20:24,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 21:20:24,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 21:20:24,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 21:20:24,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:20:24,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:20:24,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:20:24,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:20:24,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:20:24,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:20:24,513 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:20:24,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:20:24,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:20:24,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:20:24,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:20:24,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:20:24,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:20:24,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:20:24,523 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:20:24,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:20:24,524 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:20:24,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:20:24,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:20:24,524 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:20:24,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:20:24,524 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:20:24,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:20:24,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:20:24,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:20:24,789 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:20:24,790 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:20:24,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2021-07-14 21:20:24,791 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2021-07-14 21:20:24,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:20:24,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:20:24,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:20:24,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:20:24,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:20:24,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:20:24,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:20:24,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:20:24,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:20:24,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... [2021-07-14 21:20:24,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:20:24,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:20:24,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:20:24,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:20:24,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:20:24,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:20:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:20:24,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:20:24,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:20:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:20:24,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:20:24,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:20:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:20:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:20:24,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:20:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:20:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:20:24,913 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 21:20:25,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:20:25,072 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:20:25,073 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:20:25 BoogieIcfgContainer [2021-07-14 21:20:25,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:20:25,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:20:25,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:20:25,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:20:25,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:20:24" (1/2) ... [2021-07-14 21:20:25,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58de6068 and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:20:25, skipping insertion in model container [2021-07-14 21:20:25,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:20:25" (2/2) ... [2021-07-14 21:20:25,079 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-07-14 21:20:25,086 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:20:25,086 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:20:25,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:20:25,087 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:20:25,118 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:20:25,134 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 21:20:25,187 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:20:25,187 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:20:25,187 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:20:25,187 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:20:25,187 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:20:25,188 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:20:25,188 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:20:25,188 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:20:25,284 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:25,288 INFO L82 PathProgramCache]: Analyzing trace with hash 557828548, now seen corresponding path program 1 times [2021-07-14 21:20:25,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:25,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421327977] [2021-07-14 21:20:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:25,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:25,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421327977] [2021-07-14 21:20:25,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421327977] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:20:25,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:20:25,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:20:25,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258350578] [2021-07-14 21:20:25,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:20:25,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:25,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:20:25,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:20:25,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:25,432 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:25,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:25,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:20:25,500 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:25,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:25,503 INFO L82 PathProgramCache]: Analyzing trace with hash -298567710, now seen corresponding path program 1 times [2021-07-14 21:20:25,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:25,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539186040] [2021-07-14 21:20:25,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:20:25,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:25,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539186040] [2021-07-14 21:20:25,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539186040] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:20:25,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:20:25,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:20:25,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400074121] [2021-07-14 21:20:25,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:20:25,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:25,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:20:25,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:20:25,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:25,543 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:25,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:25,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 21:20:25,677 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:25,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:25,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1174273682, now seen corresponding path program 1 times [2021-07-14 21:20:25,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:25,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168270472] [2021-07-14 21:20:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 21:20:25,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:25,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168270472] [2021-07-14 21:20:25,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168270472] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:20:25,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:20:25,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 21:20:25,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505467352] [2021-07-14 21:20:25,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 21:20:25,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:25,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 21:20:25,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 21:20:25,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:25,726 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:25,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:25,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:25,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 21:20:25,747 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:25,748 INFO L82 PathProgramCache]: Analyzing trace with hash -816606771, now seen corresponding path program 2 times [2021-07-14 21:20:25,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:25,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20515426] [2021-07-14 21:20:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 21:20:25,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:25,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20515426] [2021-07-14 21:20:25,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20515426] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:25,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080793703] [2021-07-14 21:20:25,822 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:25,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:20:25,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:25,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 21:20:25,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:26,039 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 21:20:26,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080793703] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:26,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:26,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-07-14 21:20:26,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530086127] [2021-07-14 21:20:26,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 21:20:26,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:26,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 21:20:26,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 21:20:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:26,041 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:26,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:26,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:26,325 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:26,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:26,325 INFO L82 PathProgramCache]: Analyzing trace with hash -381203727, now seen corresponding path program 3 times [2021-07-14 21:20:26,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:26,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44313082] [2021-07-14 21:20:26,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:20:26,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:26,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44313082] [2021-07-14 21:20:26,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44313082] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:26,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100352503] [2021-07-14 21:20:26,404 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:26,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 21:20:26,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:26,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 21:20:26,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:20:26,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100352503] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:26,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:26,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-07-14 21:20:26,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518276698] [2021-07-14 21:20:26,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 21:20:26,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:26,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 21:20:26,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-07-14 21:20:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:26,558 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:26,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:26,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:26,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:26,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:26,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:26,897 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:26,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:26,897 INFO L82 PathProgramCache]: Analyzing trace with hash -587080567, now seen corresponding path program 4 times [2021-07-14 21:20:26,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:26,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020547059] [2021-07-14 21:20:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:27,221 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:27,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:27,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020547059] [2021-07-14 21:20:27,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020547059] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:27,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025629173] [2021-07-14 21:20:27,222 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:27,257 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:20:27,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:27,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 21:20:27,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:28,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025629173] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:28,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:28,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-07-14 21:20:28,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726720769] [2021-07-14 21:20:28,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 21:20:28,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:28,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 21:20:28,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=900, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 21:20:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:28,007 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:28,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:28,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:28,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:28,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:28,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:28,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:28,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:28,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:28,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:28,349 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:28,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:28,349 INFO L82 PathProgramCache]: Analyzing trace with hash 399081549, now seen corresponding path program 5 times [2021-07-14 21:20:28,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:28,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060631388] [2021-07-14 21:20:28,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 21:20:28,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:28,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060631388] [2021-07-14 21:20:28,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060631388] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:28,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194212751] [2021-07-14 21:20:28,751 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:28,780 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 21:20:28,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:28,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-14 21:20:28,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:29,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194212751] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:29,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:29,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 36 [2021-07-14 21:20:29,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188567346] [2021-07-14 21:20:29,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-14 21:20:29,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:29,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-14 21:20:29,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2021-07-14 21:20:29,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:29,966 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:29,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.081081081081081) internal successors, (77), 36 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:29,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:30,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-07-14 21:20:30,453 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:30,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:30,454 INFO L82 PathProgramCache]: Analyzing trace with hash -443145779, now seen corresponding path program 6 times [2021-07-14 21:20:30,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:30,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696640260] [2021-07-14 21:20:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-14 21:20:30,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:30,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696640260] [2021-07-14 21:20:30,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696640260] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:30,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087952219] [2021-07-14 21:20:30,956 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:30,988 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-14 21:20:30,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:30,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-14 21:20:30,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:32,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087952219] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:32,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:32,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 37 [2021-07-14 21:20:32,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316708222] [2021-07-14 21:20:32,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-14 21:20:32,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:32,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-14 21:20:32,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2021-07-14 21:20:32,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:32,317 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:32,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1315789473684212) internal successors, (81), 37 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) [2021-07-14 21:20:32,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:32,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:32,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:32,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:32,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:32,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:32,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:32,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:32,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:20:32,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:32,929 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:32,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:32,929 INFO L82 PathProgramCache]: Analyzing trace with hash -163846033, now seen corresponding path program 7 times [2021-07-14 21:20:32,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:32,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088859226] [2021-07-14 21:20:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:34,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:34,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088859226] [2021-07-14 21:20:34,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088859226] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:34,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178500469] [2021-07-14 21:20:34,325 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:34,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-14 21:20:34,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:35,447 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-07-14 21:20:35,647 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-07-14 21:20:36,188 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-07-14 21:20:36,630 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-07-14 21:20:36,880 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-07-14 21:20:37,143 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-07-14 21:20:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:37,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178500469] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:37,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:37,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 44 [2021-07-14 21:20:37,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252341929] [2021-07-14 21:20:37,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-14 21:20:37,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:37,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-14 21:20:37,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1793, Unknown=0, NotChecked=0, Total=1980 [2021-07-14 21:20:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:37,234 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:37,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.1333333333333333) internal successors, (96), 44 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:37,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:37,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:37,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:37,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:37,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:37,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:37,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:37,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:20:37,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:20:37,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:20:37,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-07-14 21:20:37,810 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:37,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:37,810 INFO L82 PathProgramCache]: Analyzing trace with hash 988934869, now seen corresponding path program 8 times [2021-07-14 21:20:37,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:37,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728334235] [2021-07-14 21:20:37,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-07-14 21:20:38,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:38,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728334235] [2021-07-14 21:20:38,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728334235] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:38,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369177686] [2021-07-14 21:20:38,806 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:38,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:20:38,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:38,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 21:20:38,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:40,259 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-14 21:20:40,625 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-07-14 21:20:40,910 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-14 21:20:41,334 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 104 [2021-07-14 21:20:41,700 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2021-07-14 21:20:42,019 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 21:20:42,290 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 21:20:42,665 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2021-07-14 21:20:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:42,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369177686] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:42,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:42,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 27] total 43 [2021-07-14 21:20:42,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444690938] [2021-07-14 21:20:42,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-07-14 21:20:42,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:42,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-07-14 21:20:42,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1655, Unknown=0, NotChecked=0, Total=1892 [2021-07-14 21:20:42,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:42,781 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:42,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.159090909090909) internal successors, (95), 43 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:20:42,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:20:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:20:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:20:43,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-07-14 21:20:43,720 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:43,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:43,720 INFO L82 PathProgramCache]: Analyzing trace with hash 137588411, now seen corresponding path program 9 times [2021-07-14 21:20:43,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:43,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317415532] [2021-07-14 21:20:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:44,476 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2021-07-14 21:20:44,638 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 21 [2021-07-14 21:20:44,795 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 27 [2021-07-14 21:20:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 1 proven. 156 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-07-14 21:20:45,271 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:45,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317415532] [2021-07-14 21:20:45,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317415532] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:45,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218366391] [2021-07-14 21:20:45,271 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:45,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-07-14 21:20:45,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:45,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-14 21:20:45,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:46,542 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-07-14 21:20:46,889 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-07-14 21:20:47,271 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-07-14 21:20:47,947 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2021-07-14 21:20:48,402 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-07-14 21:20:49,143 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 161 [2021-07-14 21:20:49,873 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 163 [2021-07-14 21:20:50,639 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 156 [2021-07-14 21:20:51,557 WARN L205 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 186 [2021-07-14 21:20:51,985 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-07-14 21:20:52,670 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 141 [2021-07-14 21:20:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:20:52,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218366391] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:52,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:20:52,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 30] total 47 [2021-07-14 21:20:52,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076310241] [2021-07-14 21:20:52,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-07-14 21:20:52,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:20:52,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-07-14 21:20:52,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1979, Unknown=0, NotChecked=0, Total=2256 [2021-07-14 21:20:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:52,914 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:20:52,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 47 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:20:52,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:52,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:52,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:52,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:52,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:52,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:52,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:52,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:20:52,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:20:52,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-14 21:20:52,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:20:54,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:20:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:20:54,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:54,287 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:20:54,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:20:54,287 INFO L82 PathProgramCache]: Analyzing trace with hash -293584001, now seen corresponding path program 10 times [2021-07-14 21:20:54,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:20:54,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888483134] [2021-07-14 21:20:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:20:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:20:55,188 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 97 [2021-07-14 21:20:55,365 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 27 [2021-07-14 21:20:55,610 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2021-07-14 21:20:56,003 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 29 [2021-07-14 21:20:56,189 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 29 [2021-07-14 21:20:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 2 proven. 192 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-07-14 21:20:56,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:20:56,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888483134] [2021-07-14 21:20:56,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888483134] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:20:56,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638890627] [2021-07-14 21:20:56,478 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:20:56,539 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:20:56,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:20:56,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-14 21:20:56,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:20:57,837 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2021-07-14 21:20:58,209 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-07-14 21:20:58,468 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 21:20:59,098 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 143 [2021-07-14 21:20:59,558 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-07-14 21:21:00,188 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 139 [2021-07-14 21:21:00,540 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-07-14 21:21:00,936 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-07-14 21:21:01,376 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-07-14 21:21:01,935 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-07-14 21:21:02,378 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-14 21:21:03,099 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 136 [2021-07-14 21:21:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:21:03,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638890627] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:21:03,319 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:21:03,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 32] total 48 [2021-07-14 21:21:03,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112053969] [2021-07-14 21:21:03,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-14 21:21:03,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:21:03,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-14 21:21:03,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=2075, Unknown=0, NotChecked=0, Total=2352 [2021-07-14 21:21:03,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:21:03,321 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:21:03,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.183673469387755) internal successors, (107), 48 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:21:03,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:21:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:21:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:21:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:21:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:21:04,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:21:04,674 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:21:04,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:21:04,674 INFO L82 PathProgramCache]: Analyzing trace with hash -585798367, now seen corresponding path program 11 times [2021-07-14 21:21:04,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:21:04,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136318037] [2021-07-14 21:21:04,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:21:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:21:05,947 WARN L205 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2021-07-14 21:21:07,240 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 96 DAG size of output: 30 [2021-07-14 21:21:09,074 WARN L205 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 118 DAG size of output: 54 [2021-07-14 21:21:13,599 WARN L205 SmtUtils]: Spent 4.51 s on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2021-07-14 21:21:18,474 WARN L205 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 125 DAG size of output: 59 [2021-07-14 21:21:23,368 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 127 DAG size of output: 47 [2021-07-14 21:21:28,259 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 114 DAG size of output: 47 [2021-07-14 21:21:33,067 WARN L205 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 112 DAG size of output: 47 [2021-07-14 21:21:37,700 WARN L205 SmtUtils]: Spent 4.62 s on a formula simplification. DAG size of input: 117 DAG size of output: 49 [2021-07-14 21:21:42,485 WARN L205 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 116 DAG size of output: 48 [2021-07-14 21:21:49,373 WARN L205 SmtUtils]: Spent 6.83 s on a formula simplification. DAG size of input: 119 DAG size of output: 39 [2021-07-14 21:21:55,175 WARN L205 SmtUtils]: Spent 5.75 s on a formula simplification. DAG size of input: 128 DAG size of output: 46 [2021-07-14 21:22:04,399 WARN L205 SmtUtils]: Spent 9.20 s on a formula simplification. DAG size of input: 186 DAG size of output: 96 [2021-07-14 21:22:04,560 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2021-07-14 21:22:09,846 WARN L205 SmtUtils]: Spent 5.28 s on a formula simplification. DAG size of input: 155 DAG size of output: 112 [2021-07-14 21:22:38,696 WARN L205 SmtUtils]: Spent 28.82 s on a formula simplification. DAG size of input: 171 DAG size of output: 105 [2021-07-14 21:23:10,985 WARN L205 SmtUtils]: Spent 32.25 s on a formula simplification. DAG size of input: 171 DAG size of output: 101 [2021-07-14 21:23:11,133 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 25 [2021-07-14 21:23:34,362 WARN L205 SmtUtils]: Spent 23.23 s on a formula simplification. DAG size of input: 169 DAG size of output: 99 [2021-07-14 21:23:34,530 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 28 [2021-07-14 21:23:35,015 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2021-07-14 21:23:35,934 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2021-07-14 21:23:36,116 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 31 [2021-07-14 21:23:36,286 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2021-07-14 21:23:36,430 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 31 [2021-07-14 21:23:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 252 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-07-14 21:23:36,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:23:36,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136318037] [2021-07-14 21:23:36,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136318037] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:23:36,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968728811] [2021-07-14 21:23:36,781 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:23:36,858 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-07-14 21:23:36,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:23:36,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-14 21:23:36,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:23:38,361 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2021-07-14 21:23:38,775 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 21:23:39,054 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-07-14 21:23:39,797 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 170 [2021-07-14 21:23:40,366 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-07-14 21:23:41,173 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 169 [2021-07-14 21:23:41,938 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 160 [2021-07-14 21:23:42,746 WARN L205 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 156 [2021-07-14 21:23:43,264 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-14 21:23:44,400 WARN L205 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 194 [2021-07-14 21:23:45,068 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 21:23:46,490 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-07-14 21:23:47,207 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-07-14 21:23:48,384 WARN L205 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 177 [2021-07-14 21:23:49,154 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-07-14 21:23:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:23:49,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968728811] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:23:49,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:23:49,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 36] total 54 [2021-07-14 21:23:49,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113919732] [2021-07-14 21:23:49,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-07-14 21:23:49,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:23:49,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-07-14 21:23:49,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=2671, Unknown=0, NotChecked=0, Total=2970 [2021-07-14 21:23:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:23:49,394 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:23:49,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.1272727272727274) internal successors, (117), 54 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) [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:23:49,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:23:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:23:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:23:50,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:23:50,653 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:23:50,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:23:50,653 INFO L82 PathProgramCache]: Analyzing trace with hash 2069446948, now seen corresponding path program 12 times [2021-07-14 21:23:50,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:23:50,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234868163] [2021-07-14 21:23:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:23:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:23:51,869 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 45 [2021-07-14 21:23:52,180 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 44 [2021-07-14 21:23:52,622 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 49 [2021-07-14 21:23:53,006 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 48 [2021-07-14 21:23:53,580 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 52 [2021-07-14 21:23:55,466 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 191 DAG size of output: 55 [2021-07-14 21:23:56,422 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2021-07-14 21:23:56,549 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 23 [2021-07-14 21:23:57,716 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 203 DAG size of output: 58 [2021-07-14 21:24:02,255 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 196 DAG size of output: 61 [2021-07-14 21:24:06,298 WARN L205 SmtUtils]: Spent 4.02 s on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2021-07-14 21:24:09,170 WARN L205 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 180 DAG size of output: 61 [2021-07-14 21:24:14,130 WARN L205 SmtUtils]: Spent 4.87 s on a formula simplification. DAG size of input: 161 DAG size of output: 67 [2021-07-14 21:24:17,023 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 138 DAG size of output: 63 [2021-07-14 21:24:18,202 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 134 DAG size of output: 56 [2021-07-14 21:24:18,650 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2021-07-14 21:24:19,142 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 29 [2021-07-14 21:24:19,454 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2021-07-14 21:24:19,777 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 36 [2021-07-14 21:24:20,113 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 37 [2021-07-14 21:24:20,468 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 37 [2021-07-14 21:24:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 4 proven. 339 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-07-14 21:24:20,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:24:20,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234868163] [2021-07-14 21:24:20,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234868163] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:24:20,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233920625] [2021-07-14 21:24:20,674 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:24:20,758 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-07-14 21:24:20,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:24:20,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-14 21:24:20,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:24:22,442 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-07-14 21:24:22,877 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-07-14 21:24:23,177 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-07-14 21:24:23,916 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 158 [2021-07-14 21:24:24,370 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-07-14 21:24:25,117 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 176 [2021-07-14 21:24:25,902 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 166 [2021-07-14 21:24:26,742 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 161 [2021-07-14 21:24:27,262 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-07-14 21:24:28,419 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 198 [2021-07-14 21:24:29,104 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-07-14 21:24:30,002 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-07-14 21:24:30,795 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-07-14 21:24:31,547 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-07-14 21:24:32,311 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-07-14 21:24:33,768 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 286 DAG size of output: 224 [2021-07-14 21:24:34,615 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-07-14 21:24:35,673 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-07-14 21:24:36,466 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-07-14 21:24:37,717 WARN L205 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2021-07-14 21:24:38,146 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:24:38,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233920625] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:24:38,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:24:38,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 41] total 63 [2021-07-14 21:24:38,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618002820] [2021-07-14 21:24:38,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-07-14 21:24:38,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:24:38,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-07-14 21:24:38,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=3678, Unknown=0, NotChecked=0, Total=4032 [2021-07-14 21:24:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:24:38,148 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:24:38,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.125) internal successors, (136), 63 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:24:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:24:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:24:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:24:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:24:38,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:24:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:24:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:24:40,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:24:40,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:24:40,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:24:40,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:24:40,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:24:40,899 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:24:40,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:24:40,900 INFO L82 PathProgramCache]: Analyzing trace with hash 786985636, now seen corresponding path program 13 times [2021-07-14 21:24:40,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:24:40,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548976487] [2021-07-14 21:24:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:24:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:24:42,023 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2021-07-14 21:24:42,225 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 66 [2021-07-14 21:24:42,462 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 62 [2021-07-14 21:24:43,188 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 53 [2021-07-14 21:24:43,651 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 55 [2021-07-14 21:24:44,157 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 49 [2021-07-14 21:24:44,383 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 45 [2021-07-14 21:24:44,675 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 46 [2021-07-14 21:24:45,421 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 33 [2021-07-14 21:24:46,188 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2021-07-14 21:24:46,425 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 37 [2021-07-14 21:24:46,555 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 68 [2021-07-14 21:24:46,877 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 78 [2021-07-14 21:24:47,412 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 91 [2021-07-14 21:24:47,592 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 32 [2021-07-14 21:24:48,085 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 88 [2021-07-14 21:24:48,261 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 32 [2021-07-14 21:24:48,691 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 85 [2021-07-14 21:24:48,881 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 26 [2021-07-14 21:24:49,342 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 89 [2021-07-14 21:24:49,520 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 32 [2021-07-14 21:24:49,958 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 94 [2021-07-14 21:24:50,157 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 30 [2021-07-14 21:24:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 1 proven. 549 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 21:24:50,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:24:50,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548976487] [2021-07-14 21:24:50,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548976487] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:24:50,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781538348] [2021-07-14 21:24:50,542 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:24:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:24:50,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-14 21:24:50,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:24:53,020 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2021-07-14 21:24:53,590 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-07-14 21:24:53,972 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-07-14 21:24:54,832 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 166 [2021-07-14 21:24:55,378 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-14 21:24:56,412 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 181 [2021-07-14 21:24:57,505 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 184 [2021-07-14 21:24:58,667 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 183 [2021-07-14 21:24:59,415 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-07-14 21:25:01,126 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 251 DAG size of output: 249 [2021-07-14 21:25:03,136 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 320 DAG size of output: 279 [2021-07-14 21:25:03,600 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 438 [2021-07-14 21:25:03,706 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 438 [2021-07-14 21:25:06,807 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 428 DAG size of output: 319 [2021-07-14 21:25:08,210 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-07-14 21:25:09,570 WARN L205 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2021-07-14 21:25:10,992 WARN L205 SmtUtils]: Spent 910.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2021-07-14 21:25:11,219 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 437 [2021-07-14 21:25:11,340 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 437 [2021-07-14 21:25:13,551 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 437 DAG size of output: 303 [2021-07-14 21:25:13,763 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 404 [2021-07-14 21:25:13,877 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 404 [2021-07-14 21:25:15,947 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 402 DAG size of output: 297 [2021-07-14 21:25:19,836 WARN L205 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 346 DAG size of output: 284 [2021-07-14 21:25:22,173 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 286 DAG size of output: 281 [2021-07-14 21:25:23,379 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2021-07-14 21:25:25,423 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 239 DAG size of output: 239 [2021-07-14 21:25:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 553 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:25:26,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781538348] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:25:26,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:25:26,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 43] total 80 [2021-07-14 21:25:26,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818623156] [2021-07-14 21:25:26,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-07-14 21:25:26,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:25:26,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-07-14 21:25:26,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=6134, Unknown=0, NotChecked=0, Total=6480 [2021-07-14 21:25:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:25:26,222 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:25:26,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 2.0617283950617282) internal successors, (167), 80 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:25:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-14 21:25:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:25:28,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable314 [2021-07-14 21:25:28,329 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:25:28,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:25:28,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1193140128, now seen corresponding path program 14 times [2021-07-14 21:25:28,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:25:28,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697355556] [2021-07-14 21:25:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:25:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:25:40,550 WARN L205 SmtUtils]: Spent 11.04 s on a formula simplification. DAG size of input: 107 DAG size of output: 43 [2021-07-14 21:25:44,723 WARN L205 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 134 DAG size of output: 81 [2021-07-14 21:25:52,209 WARN L205 SmtUtils]: Spent 7.38 s on a formula simplification. DAG size of input: 155 DAG size of output: 99 [2021-07-14 21:25:52,378 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 36 [2021-07-14 21:25:56,438 WARN L205 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 165 DAG size of output: 68 [2021-07-14 21:26:01,726 WARN L205 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 177 DAG size of output: 82 [2021-07-14 21:26:01,874 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 34 [2021-07-14 21:26:12,259 WARN L205 SmtUtils]: Spent 10.38 s on a formula simplification. DAG size of input: 183 DAG size of output: 95 [2021-07-14 21:26:12,459 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 34 [2021-07-14 21:26:37,959 WARN L205 SmtUtils]: Spent 25.50 s on a formula simplification. DAG size of input: 197 DAG size of output: 127 [2021-07-14 21:26:38,209 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 34 [2021-07-14 21:27:06,222 WARN L205 SmtUtils]: Spent 28.01 s on a formula simplification. DAG size of input: 204 DAG size of output: 140 [2021-07-14 21:27:06,444 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 34 [2021-07-14 21:27:29,909 WARN L205 SmtUtils]: Spent 23.46 s on a formula simplification. DAG size of input: 230 DAG size of output: 79 [2021-07-14 21:27:50,937 WARN L205 SmtUtils]: Spent 20.89 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2021-07-14 21:28:11,959 WARN L205 SmtUtils]: Spent 20.92 s on a formula simplification. DAG size of input: 223 DAG size of output: 63 [2021-07-14 21:28:34,875 WARN L205 SmtUtils]: Spent 22.81 s on a formula simplification. DAG size of input: 227 DAG size of output: 64 [2021-07-14 21:29:05,578 WARN L205 SmtUtils]: Spent 30.58 s on a formula simplification. DAG size of input: 236 DAG size of output: 80 [2021-07-14 21:29:35,593 WARN L205 SmtUtils]: Spent 29.87 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2021-07-14 21:29:40,650 WARN L205 SmtUtils]: Spent 4.92 s on a formula simplification. DAG size of input: 186 DAG size of output: 41 [2021-07-14 21:29:45,616 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 206 DAG size of output: 37 [2021-07-14 21:30:34,360 WARN L205 SmtUtils]: Spent 48.67 s on a formula simplification. DAG size of input: 268 DAG size of output: 65 [2021-07-14 21:31:37,210 WARN L205 SmtUtils]: Spent 1.05 m on a formula simplification. DAG size of input: 232 DAG size of output: 125 [2021-07-14 21:31:37,487 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 32 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown