/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 16:23:51,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 16:23:51,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 16:23:51,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 16:23:51,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 16:23:51,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 16:23:51,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 16:23:51,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 16:23:51,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 16:23:51,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 16:23:51,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 16:23:51,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 16:23:51,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 16:23:51,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 16:23:51,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 16:23:51,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 16:23:51,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 16:23:51,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-14 16:23:51,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 16:23:51,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 16:23:51,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 16:23:51,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 16:23:51,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 16:23:51,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 16:23:51,492 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 16:23:51,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 16:23:51,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 16:23:51,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 16:23:51,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 16:23:51,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 16:23:51,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 16:23:51,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 16:23:51,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 16:23:51,517 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 16:23:51,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 16:23:51,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 16:23:51,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 16:23:51,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 16:23:51,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 16:23:51,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 16:23:51,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 16:23:51,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:23:51,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 16:23:51,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 16:23:51,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 16:23:51,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 16:23:51,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 16:23:51,519 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 16:23:51,519 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 16:23:51,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 16:23:51,519 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 16:23:51,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 16:23:51,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 16:23:51,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 16:23:51,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 16:23:51,811 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 16:23:51,812 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 16:23:51,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl [2021-07-14 16:23:51,813 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2021-07-14 16:23:51,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 16:23:51,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 16:23:51,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 16:23:51,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 16:23:51,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 16:23:51,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 16:23:51,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 16:23:51,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 16:23:51,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 16:23:51,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... [2021-07-14 16:23:51,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 16:23:51,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 16:23:51,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 16:23:51,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 16:23:51,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:23:51,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 16:23:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 16:23:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 16:23:51,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 16:23:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 16:23:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 16:23:51,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 16:23:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 16:23:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 16:23:51,978 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 16:23:52,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 16:23:52,195 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 16:23:52,197 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:23:52 BoogieIcfgContainer [2021-07-14 16:23:52,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 16:23:52,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 16:23:52,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 16:23:52,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 16:23:52,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:23:51" (1/2) ... [2021-07-14 16:23:52,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c89f6d4 and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:23:52, skipping insertion in model container [2021-07-14 16:23:52,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:23:52" (2/2) ... [2021-07-14 16:23:52,203 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2021-07-14 16:23:52,207 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 16:23:52,207 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 16:23:52,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 16:23:52,208 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 16:23:52,267 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 16:23:52,286 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 16:23:52,362 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 16:23:52,362 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 16:23:52,362 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 16:23:52,362 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 16:23:52,362 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 16:23:52,362 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 16:23:52,362 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 16:23:52,362 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 16:23:52,504 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:52,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1255291927, now seen corresponding path program 1 times [2021-07-14 16:23:52,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:52,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679247150] [2021-07-14 16:23:52,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:52,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:52,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679247150] [2021-07-14 16:23:52,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679247150] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 16:23:52,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 16:23:52,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 16:23:52,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175053960] [2021-07-14 16:23:52,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 16:23:52,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:23:52,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 16:23:52,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 16:23:52,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:52,670 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:23:52,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:23:52,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:52,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:52,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 16:23:52,698 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:52,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:52,702 INFO L82 PathProgramCache]: Analyzing trace with hash 417922027, now seen corresponding path program 1 times [2021-07-14 16:23:52,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:52,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906246443] [2021-07-14 16:23:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:52,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:52,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:52,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906246443] [2021-07-14 16:23:52,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906246443] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:52,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69233289] [2021-07-14 16:23:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:52,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 16:23:52,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:23:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:52,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69233289] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:52,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:23:52,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-07-14 16:23:52,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546870740] [2021-07-14 16:23:52,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 16:23:52,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:23:52,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 16:23:52,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-07-14 16:23:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:52,988 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:23:52,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:23:52,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:52,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:53,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:53,341 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:53,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:53,341 INFO L82 PathProgramCache]: Analyzing trace with hash -644197395, now seen corresponding path program 1 times [2021-07-14 16:23:53,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:53,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843675273] [2021-07-14 16:23:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:53,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:53,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:53,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843675273] [2021-07-14 16:23:53,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843675273] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:53,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210309497] [2021-07-14 16:23:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:53,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 16:23:53,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:23:53,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:23:53,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-07-14 16:23:53,742 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:23:53,750 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:23:53,756 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:23:53,757 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2021-07-14 16:23:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:53,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210309497] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:53,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:23:53,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-14 16:23:53,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593501141] [2021-07-14 16:23:53,787 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 16:23:53,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:23:53,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 16:23:53,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-14 16:23:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:53,789 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:23:53,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:23:53,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:53,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:53,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:53,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:54,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:54,049 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:54,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:54,052 INFO L82 PathProgramCache]: Analyzing trace with hash -48907537, now seen corresponding path program 2 times [2021-07-14 16:23:54,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:54,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239547207] [2021-07-14 16:23:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:54,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:54,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239547207] [2021-07-14 16:23:54,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239547207] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:54,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177658968] [2021-07-14 16:23:54,191 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:54,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:23:54,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:23:54,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 16:23:54,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:23:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:54,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177658968] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:54,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:23:54,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-07-14 16:23:54,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696971471] [2021-07-14 16:23:54,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 16:23:54,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:23:54,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 16:23:54,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-07-14 16:23:54,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:54,487 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:23:54,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:23:54,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:54,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:54,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:54,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:23:54,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:54,915 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:54,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:54,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1704157681, now seen corresponding path program 3 times [2021-07-14 16:23:54,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:54,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352476242] [2021-07-14 16:23:54,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:55,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:55,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352476242] [2021-07-14 16:23:55,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352476242] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:55,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143927814] [2021-07-14 16:23:55,067 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:55,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 16:23:55,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:23:55,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 16:23:55,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:23:55,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:55,381 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:23:55,392 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:23:55,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 29 [2021-07-14 16:23:55,410 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 16:23:55,428 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:23:55,454 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 16:23:55,455 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:27 [2021-07-14 16:23:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:55,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143927814] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:55,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:23:55,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 15 [2021-07-14 16:23:55,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651219872] [2021-07-14 16:23:55,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 16:23:55,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:23:55,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 16:23:55,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-07-14 16:23:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:55,552 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:23:55,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:23:55,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:55,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:55,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:55,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:23:55,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:23:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:23:55,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:55,921 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:55,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:55,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1711150453, now seen corresponding path program 4 times [2021-07-14 16:23:55,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:55,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404263338] [2021-07-14 16:23:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:56,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:56,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404263338] [2021-07-14 16:23:56,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404263338] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:56,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2256571] [2021-07-14 16:23:56,038 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:56,068 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:23:56,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:23:56,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 16:23:56,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:23:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:56,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2256571] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:56,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:23:56,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-07-14 16:23:56,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279349960] [2021-07-14 16:23:56,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 16:23:56,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:23:56,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 16:23:56,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-07-14 16:23:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:56,246 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:23:56,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:23:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:23:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:23:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:23:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:23:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:23:56,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:56,787 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:56,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:56,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1439627257, now seen corresponding path program 5 times [2021-07-14 16:23:56,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:56,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308201995] [2021-07-14 16:23:56,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:57,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:57,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308201995] [2021-07-14 16:23:57,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308201995] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:57,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412042837] [2021-07-14 16:23:57,224 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:57,271 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 16:23:57,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:23:57,273 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-14 16:23:57,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:23:57,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:23:57,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:23:57,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:23:57,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:23:57,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:23:57,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 7 [2021-07-14 16:23:57,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:23:57,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:23:57,691 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:23:57,692 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:7 [2021-07-14 16:23:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:57,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412042837] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:57,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:23:57,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 24 [2021-07-14 16:23:57,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435922268] [2021-07-14 16:23:57,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 16:23:57,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:23:57,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 16:23:57,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-07-14 16:23:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:57,717 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:23:57,717 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 24 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:23:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:23:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:23:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:23:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:23:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:23:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:23:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:23:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:23:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:23:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:23:58,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:23:59,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:59,182 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:23:59,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:23:59,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1621327869, now seen corresponding path program 6 times [2021-07-14 16:23:59,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:23:59,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576554176] [2021-07-14 16:23:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:23:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:23:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:23:59,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:23:59,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576554176] [2021-07-14 16:23:59,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576554176] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:23:59,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335953225] [2021-07-14 16:23:59,713 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:23:59,749 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 16:23:59,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:23:59,750 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-14 16:23:59,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:24:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:00,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:00,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:00,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:00,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:00,771 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:24:00,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 81 treesize of output 95 [2021-07-14 16:24:00,842 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-07-14 16:24:00,905 INFO L628 ElimStorePlain]: treesize reduction 280, result has 11.1 percent of original size [2021-07-14 16:24:00,913 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 16:24:00,913 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:103, output treesize:22 [2021-07-14 16:24:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:24:00,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335953225] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:24:00,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:24:00,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2021-07-14 16:24:00,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188242554] [2021-07-14 16:24:00,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-14 16:24:00,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:24:00,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-14 16:24:00,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-07-14 16:24:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:24:00,984 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:24:00,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 33 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:24:00,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:24:00,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:24:00,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:24:00,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:24:00,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:24:00,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:24:00,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:24:00,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:24:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:24:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:24:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:24:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:24:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:24:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:24:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:24:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:03,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-14 16:24:03,341 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:24:03,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:24:03,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1607956991, now seen corresponding path program 7 times [2021-07-14 16:24:03,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:24:03,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982332241] [2021-07-14 16:24:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:24:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:24:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:24:03,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:24:03,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982332241] [2021-07-14 16:24:03,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982332241] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:24:03,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925196611] [2021-07-14 16:24:03,879 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:24:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:24:03,910 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-14 16:24:03,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:24:04,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:04,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:04,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:04,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:04,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:04,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:04,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:04,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 7 [2021-07-14 16:24:04,621 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:24:04,626 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:24:04,627 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:24:04,627 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:7 [2021-07-14 16:24:04,651 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:24:04,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925196611] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:24:04,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:24:04,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2021-07-14 16:24:04,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362890554] [2021-07-14 16:24:04,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 16:24:04,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:24:04,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 16:24:04,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 16:24:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:24:04,653 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:24:04,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:04,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:24:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:06,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:24:06,589 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:24:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:24:06,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1654191611, now seen corresponding path program 8 times [2021-07-14 16:24:06,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:24:06,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470980289] [2021-07-14 16:24:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:24:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:24:07,151 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:24:07,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:24:07,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470980289] [2021-07-14 16:24:07,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470980289] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:24:07,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653482826] [2021-07-14 16:24:07,152 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:24:07,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:24:07,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:24:07,205 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 59 conjunts are in the unsatisfiable core [2021-07-14 16:24:07,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:24:08,083 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:08,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,099 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:08,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:08,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:08,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:08,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:08,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:08,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 21 disjoint index pairs (out of 91 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 7 [2021-07-14 16:24:08,118 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 16:24:08,125 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:24:08,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:24:08,128 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:7 [2021-07-14 16:24:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:24:08,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653482826] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:24:08,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:24:08,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 36 [2021-07-14 16:24:08,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562866630] [2021-07-14 16:24:08,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-14 16:24:08,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:24:08,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-14 16:24:08,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-07-14 16:24:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:24:08,168 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:24:08,168 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 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:08,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:24:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:24:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 16:24:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-14 16:24:10,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:24:10,743 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:24:10,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:24:10,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1226306551, now seen corresponding path program 9 times [2021-07-14 16:24:10,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:24:10,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73491672] [2021-07-14 16:24:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:24:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:24:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:24:11,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:24:11,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73491672] [2021-07-14 16:24:11,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73491672] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:24:11,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463620875] [2021-07-14 16:24:11,481 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:24:11,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-14 16:24:11,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:24:11,523 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 71 conjunts are in the unsatisfiable core [2021-07-14 16:24:11,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:24:15,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:15,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:15,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:15,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:24:15,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:24:15,866 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-07-14 16:24:15,867 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:24:15,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 24 disjoint index pairs (out of 120 index pairs), introduced 12 new quantified variables, introduced 74 case distinctions, treesize of input 141 treesize of output 487 [2021-07-14 16:24:16,980 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 212 [2021-07-14 16:24:17,286 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 242 [2021-07-14 16:24:17,703 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 262 [2021-07-14 16:24:17,983 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 308 [2021-07-14 16:24:18,590 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 221 [2021-07-14 16:24:18,978 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 271 [2021-07-14 16:24:19,538 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 174 [2021-07-14 16:24:19,708 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 221 [2021-07-14 16:24:19,892 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 242 [2021-07-14 16:24:20,888 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2021-07-14 16:24:21,408 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 276 [2021-07-14 16:24:21,805 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 184 [2021-07-14 16:24:22,281 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 342 [2021-07-14 16:24:23,095 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 412 [2021-07-14 16:24:24,366 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 503 DAG size of output: 520 [2021-07-14 16:24:26,270 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 641 DAG size of output: 665 [2021-07-14 16:24:28,553 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 673 DAG size of output: 697 [2021-07-14 16:24:29,253 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 263 [2021-07-14 16:24:29,416 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 298 [2021-07-14 16:24:29,639 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 333 [2021-07-14 16:24:29,935 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 370 [2021-07-14 16:24:30,498 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 297 [2021-07-14 16:24:30,643 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 334 [2021-07-14 16:24:31,286 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 477 [2021-07-14 16:24:32,371 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 307 [2021-07-14 16:24:33,025 WARN L205 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 634 [2021-07-14 16:24:33,862 WARN L205 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 678 [2021-07-14 16:24:35,310 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 823 DAG size of output: 833 [2021-07-14 16:24:36,175 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-07-14 16:24:36,322 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 222 [2021-07-14 16:24:36,713 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 270 [2021-07-14 16:24:37,105 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 347 [2021-07-14 16:24:37,970 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 411 [2021-07-14 16:24:40,532 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1073 [2021-07-14 16:24:46,210 WARN L205 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-07-14 16:24:51,933 WARN L205 SmtUtils]: Spent 5.72 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-07-14 16:24:57,704 WARN L205 SmtUtils]: Spent 5.76 s on a formula simplification. DAG size of input: 1502 DAG size of output: 1530 [2021-07-14 16:25:00,305 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 741 DAG size of output: 950 [2021-07-14 16:25:03,160 WARN L205 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 736 DAG size of output: 1124 [2021-07-14 16:25:05,192 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 692 DAG size of output: 835 [2021-07-14 16:25:05,940 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 695 [2021-07-14 16:25:07,849 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 617 DAG size of output: 791 [2021-07-14 16:25:08,427 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 595 [2021-07-14 16:25:09,553 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 578 DAG size of output: 808 [2021-07-14 16:25:10,316 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 446 [2021-07-14 16:25:11,066 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 558 [2021-07-14 16:25:11,236 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 222 [2021-07-14 16:25:11,638 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 315 [2021-07-14 16:25:12,880 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 275 [2021-07-14 16:25:13,122 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 412 [2021-07-14 16:25:16,756 WARN L205 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 1917 DAG size of output: 1769 [2021-07-14 16:25:22,229 WARN L205 SmtUtils]: Spent 5.46 s on a formula simplification. DAG size of input: 2194 DAG size of output: 2044 [2021-07-14 16:25:29,862 WARN L205 SmtUtils]: Spent 7.62 s on a formula simplification. DAG size of input: 2459 DAG size of output: 2323 [2021-07-14 16:25:30,452 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 587 [2021-07-14 16:25:30,670 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 541 [2021-07-14 16:25:31,189 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 446 [2021-07-14 16:25:31,383 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 223 [2021-07-14 16:25:31,876 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 257 [2021-07-14 16:25:32,103 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 351 [2021-07-14 16:25:32,849 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 387 [2021-07-14 16:25:33,262 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 240 [2021-07-14 16:25:33,602 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 531 [2021-07-14 16:25:34,272 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 708 [2021-07-14 16:25:34,801 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-07-14 16:25:35,062 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 354 [2021-07-14 16:25:35,882 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 471 DAG size of output: 443 [2021-07-14 16:25:36,008 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 247 [2021-07-14 16:25:36,616 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 311 [2021-07-14 16:25:37,054 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 289 [2021-07-14 16:25:37,411 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 344 [2021-07-14 16:25:38,656 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 734 DAG size of output: 696 [2021-07-14 16:25:41,056 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1148 [2021-07-14 16:25:41,219 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 306 [2021-07-14 16:25:41,687 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 348 [2021-07-14 16:25:42,392 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 473 [2021-07-14 16:25:42,774 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 690 [2021-07-14 16:25:43,378 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 795 DAG size of output: 784 [2021-07-14 16:25:44,226 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 357 [2021-07-14 16:25:44,785 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 288 [2021-07-14 16:25:45,003 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 381 [2021-07-14 16:25:45,502 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 311 [2021-07-14 16:25:45,974 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 550 [2021-07-14 16:25:46,790 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 790 DAG size of output: 792 [2021-07-14 16:25:51,887 WARN L205 SmtUtils]: Spent 5.09 s on a formula simplification. DAG size of input: 2269 DAG size of output: 2166 [2021-07-14 16:25:59,379 WARN L205 SmtUtils]: Spent 7.40 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2468 [2021-07-14 16:26:09,366 WARN L205 SmtUtils]: Spent 9.97 s on a formula simplification. DAG size of input: 2856 DAG size of output: 2716 [2021-07-14 16:26:29,672 WARN L205 SmtUtils]: Spent 20.29 s on a formula simplification. DAG size of input: 4301 DAG size of output: 4043 [2021-07-14 16:26:30,259 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 637 DAG size of output: 651 [2021-07-14 16:26:31,577 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 634 DAG size of output: 902 [2021-07-14 16:26:32,725 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 478 DAG size of output: 700 [2021-07-14 16:26:33,181 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 194 [2021-07-14 16:26:34,014 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 324 [2021-07-14 16:26:34,401 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 387 [2021-07-14 16:26:34,567 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 280 [2021-07-14 16:26:35,068 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 427 [2021-07-14 16:26:37,034 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1172 DAG size of output: 1090 [2021-07-14 16:26:37,737 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 381 [2021-07-14 16:26:38,059 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 501 [2021-07-14 16:26:38,680 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285 [2021-07-14 16:26:39,280 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 662 [2021-07-14 16:26:42,436 WARN L205 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 1655 DAG size of output: 1556 [2021-07-14 16:26:47,194 WARN L205 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 1952 DAG size of output: 1867 [2021-07-14 16:26:54,095 WARN L205 SmtUtils]: Spent 6.89 s on a formula simplification. DAG size of input: 2252 DAG size of output: 2166 [2021-07-14 16:27:05,387 WARN L205 SmtUtils]: Spent 11.07 s on a formula simplification. DAG size of input: 3203 DAG size of output: 2955 [2021-07-14 16:27:41,771 WARN L205 SmtUtils]: Spent 36.37 s on a formula simplification. DAG size of input: 6325 DAG size of output: 5851 [2021-07-14 16:27:41,920 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2021-07-14 16:27:44,418 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 671 DAG size of output: 978 [2021-07-14 16:27:46,843 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 668 DAG size of output: 961 [2021-07-14 16:27:49,913 WARN L205 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 665 DAG size of output: 974 [2021-07-14 16:27:50,307 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 285 [2021-07-14 16:27:50,477 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 193 [2021-07-14 16:27:50,836 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 337 [2021-07-14 16:27:51,250 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 416 [2021-07-14 16:27:51,635 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 453 [2021-07-14 16:27:52,284 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 563 [2021-07-14 16:27:52,441 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 200 [2021-07-14 16:27:52,769 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 262 [2021-07-14 16:27:53,633 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 316 [2021-07-14 16:27:54,491 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2021-07-14 16:27:54,975 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 394 [2021-07-14 16:27:56,346 WARN L205 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 639 [2021-07-14 16:28:02,121 WARN L205 SmtUtils]: Spent 5.77 s on a formula simplification. DAG size of input: 2009 DAG size of output: 1914 [2021-07-14 16:28:11,203 WARN L205 SmtUtils]: Spent 9.07 s on a formula simplification. DAG size of input: 2013 DAG size of output: 1916 [2021-07-14 16:28:23,772 WARN L205 SmtUtils]: Spent 12.56 s on a formula simplification. DAG size of input: 2325 DAG size of output: 2231 [2021-07-14 16:28:44,051 WARN L205 SmtUtils]: Spent 20.02 s on a formula simplification. DAG size of input: 3594 DAG size of output: 3167 [2021-07-14 16:29:49,479 WARN L205 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 9326 DAG size of output: 8368 [2021-07-14 16:31:07,211 WARN L205 SmtUtils]: Spent 1.29 m on a formula simplification. DAG size of input: 9585 DAG size of output: 8636 [2021-07-14 16:31:10,675 WARN L205 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 1088 DAG size of output: 1536 [2021-07-14 16:31:13,986 WARN L205 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 1085 DAG size of output: 1490 [2021-07-14 16:31:14,155 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2021-07-14 16:31:14,338 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 263 [2021-07-14 16:31:14,480 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 260 [2021-07-14 16:31:14,949 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 281 [2021-07-14 16:31:15,173 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 284 [2021-07-14 16:31:15,498 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 336 [2021-07-14 16:31:15,973 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 401 [2021-07-14 16:31:16,618 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 403 [2021-07-14 16:31:17,010 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 367 [2021-07-14 16:31:17,370 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 359 [2021-07-14 16:31:17,903 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 364 [2021-07-14 16:31:18,208 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 246 [2021-07-14 16:31:19,180 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 589 [2021-07-14 16:31:20,192 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 633 DAG size of output: 592 [2021-07-14 16:31:21,649 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 757 DAG size of output: 712 [2021-07-14 16:31:21,770 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 244 [2021-07-14 16:31:21,885 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 243 [2021-07-14 16:31:21,996 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 233 [2021-07-14 16:31:22,607 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 322 [2021-07-14 16:31:22,835 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 368 [2021-07-14 16:31:23,209 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 422 [2021-07-14 16:31:23,758 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 469 [2021-07-14 16:31:26,197 WARN L205 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 1092 DAG size of output: 1023 [2021-07-14 16:31:29,894 WARN L205 SmtUtils]: Spent 3.68 s on a formula simplification. DAG size of input: 1294 DAG size of output: 1202 [2021-07-14 16:31:30,447 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 412 [2021-07-14 16:31:30,989 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 236 [2021-07-14 16:31:31,267 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 297 [2021-07-14 16:31:31,653 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 352 [2021-07-14 16:31:32,164 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 326 [2021-07-14 16:31:32,447 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-07-14 16:31:33,053 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 493 [2021-07-14 16:31:33,581 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 602 [2021-07-14 16:31:34,340 WARN L205 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 779 DAG size of output: 741 [2021-07-14 16:31:35,653 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 987 DAG size of output: 950 [2021-07-14 16:31:37,516 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 1124 DAG size of output: 1088 [2021-07-14 16:31:40,545 WARN L205 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 1499 DAG size of output: 1406 [2021-07-14 16:31:41,067 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 340 [2021-07-14 16:31:41,269 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 353 [2021-07-14 16:31:41,965 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 571 [2021-07-14 16:31:42,328 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 707 [2021-07-14 16:31:42,869 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 802 [2021-07-14 16:31:43,390 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-07-14 16:31:44,256 WARN L205 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1003 [2021-07-14 16:31:44,518 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 366 [2021-07-14 16:31:44,656 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 322 [2021-07-14 16:31:44,779 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 306 [2021-07-14 16:31:45,276 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 586 [2021-07-14 16:31:45,653 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 674 [2021-07-14 16:31:46,282 WARN L205 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 794 [2021-07-14 16:31:46,445 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 312 [2021-07-14 16:31:47,110 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 532 [2021-07-14 16:31:47,544 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 676 [2021-07-14 16:31:48,627 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 815 [2021-07-14 16:31:49,310 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 301 [2021-07-14 16:31:49,414 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 335 [2021-07-14 16:31:49,626 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 318 [2021-07-14 16:31:49,998 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 499 [2021-07-14 16:31:50,261 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 632 [2021-07-14 16:31:50,463 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 335 [2021-07-14 16:31:50,573 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 297 [2021-07-14 16:31:51,574 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 517 [2021-07-14 16:31:51,908 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 639 [2021-07-14 16:31:52,411 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 804 DAG size of output: 760 [2021-07-14 16:31:53,170 WARN L205 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 878 [2021-07-14 16:31:54,300 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1168 [2021-07-14 16:31:56,800 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 1965 DAG size of output: 1905 [2021-07-14 16:32:01,789 WARN L205 SmtUtils]: Spent 4.98 s on a formula simplification. DAG size of input: 2878 DAG size of output: 2788 [2021-07-14 16:32:10,382 WARN L205 SmtUtils]: Spent 8.58 s on a formula simplification. DAG size of input: 4237 DAG size of output: 3592 [2021-07-14 16:32:24,202 WARN L205 SmtUtils]: Spent 13.80 s on a formula simplification. DAG size of input: 5311 DAG size of output: 4573 [2021-07-14 16:32:44,854 WARN L205 SmtUtils]: Spent 20.63 s on a formula simplification. DAG size of input: 6289 DAG size of output: 5463 [2021-07-14 16:33:11,552 WARN L205 SmtUtils]: Spent 26.67 s on a formula simplification. DAG size of input: 6859 DAG size of output: 6051 [2021-07-14 16:33:45,170 WARN L205 SmtUtils]: Spent 33.58 s on a formula simplification. DAG size of input: 6979 DAG size of output: 6178 [2021-07-14 16:35:55,802 WARN L205 SmtUtils]: Spent 2.18 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 [2021-07-14 16:38:02,424 WARN L205 SmtUtils]: Spent 2.11 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown