/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-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 07:22:20,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 07:22:20,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 07:22:20,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 07:22:20,882 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-NewStatesSleep-NoLbe-Lockstep.epf [2021-07-14 07:22:20,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 07:22:20,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 07:22:20,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 07:22:20,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 07:22:20,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 07:22:20,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 07:22:20,898 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 07:22:20,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 07:22:20,899 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 07:22:20,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 07:22:20,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 07:22:20,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 07:22:20,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 07:22:20,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 07:22:20,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 07:22:20,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 07:22:20,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 07:22:20,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 07:22:20,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 07:22:20,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 07:22:20,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 07:22:20,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 07:22:20,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 07:22:20,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 07:22:20,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 07:22:20,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 07:22:20,908 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 07:22:20,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 07:22:21,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 07:22:21,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 07:22:21,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 07:22:21,185 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 07:22:21,187 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 07:22:21,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-07-14 07:22:21,187 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-07-14 07:22:21,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 07:22:21,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 07:22:21,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 07:22:21,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 07:22:21,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 07:22:21,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 07:22:21,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 07:22:21,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 07:22:21,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 07:22:21,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/1) ... [2021-07-14 07:22:21,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 07:22:21,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 07:22:21,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 07:22:21,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 07:22:21,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (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 07:22:21,297 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 07:22:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 07:22:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 07:22:21,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 07:22:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 07:22:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 07:22:21,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 07:22:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 07:22:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 07:22:21,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 07:22:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 07:22:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 07:22:21,299 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 07:22:21,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 07:22:21,429 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 07:22:21,430 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:22:21 BoogieIcfgContainer [2021-07-14 07:22:21,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 07:22:21,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 07:22:21,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 07:22:21,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 07:22:21,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:22:21" (1/2) ... [2021-07-14 07:22:21,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36eecda and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:22:21, skipping insertion in model container [2021-07-14 07:22:21,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:22:21" (2/2) ... [2021-07-14 07:22:21,435 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-07-14 07:22:21,439 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 07:22:21,439 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 07:22:21,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 07:22:21,440 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 07:22:21,465 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 07:22:21,479 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 07:22:21,530 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 07:22:21,531 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 07:22:21,531 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 07:22:21,531 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 07:22:21,531 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 07:22:21,531 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 07:22:21,531 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 07:22:21,531 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 07:22:21,603 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:21,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:21,606 INFO L82 PathProgramCache]: Analyzing trace with hash -311866145, now seen corresponding path program 1 times [2021-07-14 07:22:21,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:21,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263050834] [2021-07-14 07:22:21,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 07:22:21,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:21,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263050834] [2021-07-14 07:22:21,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263050834] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:21,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501854601] [2021-07-14 07:22:21,852 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 07:22:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:21,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 07:22:21,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 07:22:22,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501854601] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:22,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:22,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-14 07:22:22,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632579593] [2021-07-14 07:22:22,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 07:22:22,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:22,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 07:22:22,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-14 07:22:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:22,123 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:22,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:22:22,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:22,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 07:22:22,447 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:22,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1637006143, now seen corresponding path program 2 times [2021-07-14 07:22:22,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:22,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514758809] [2021-07-14 07:22:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:22,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:22,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514758809] [2021-07-14 07:22:22,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514758809] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:22,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937330737] [2021-07-14 07:22:22,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:22,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 07:22:22,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:22,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 07:22:22,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:22,735 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:22,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937330737] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:22,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:22,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 07:22:22,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393103238] [2021-07-14 07:22:22,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 07:22:22,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:22,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 07:22:22,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 07:22:22,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:22,740 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:22,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 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 07:22:22,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:22,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:22,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:23,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:23,090 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:23,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:23,091 INFO L82 PathProgramCache]: Analyzing trace with hash 508742691, now seen corresponding path program 3 times [2021-07-14 07:22:23,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:23,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62444979] [2021-07-14 07:22:23,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:23,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:23,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62444979] [2021-07-14 07:22:23,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62444979] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:23,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400856685] [2021-07-14 07:22:23,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:23,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 07:22:23,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:23,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 07:22:23,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:23,953 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:22:23,954 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 53 [2021-07-14 07:22:24,020 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 07:22:24,118 INFO L628 ElimStorePlain]: treesize reduction 150, result has 31.5 percent of original size [2021-07-14 07:22:24,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-07-14 07:22:24,157 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:109 [2021-07-14 07:22:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:24,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400856685] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:24,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:24,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 22 [2021-07-14 07:22:24,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377275963] [2021-07-14 07:22:24,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 07:22:24,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:24,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 07:22:24,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2021-07-14 07:22:24,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:24,258 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:24,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 22 states have internal predecessors, (51), 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 07:22:24,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:24,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:24,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:25,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:25,605 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:25,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1923583651, now seen corresponding path program 4 times [2021-07-14 07:22:25,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:25,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111978175] [2021-07-14 07:22:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:26,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:26,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111978175] [2021-07-14 07:22:26,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111978175] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:26,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256000096] [2021-07-14 07:22:26,062 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:26,103 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 07:22:26,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:26,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-14 07:22:26,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:26,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:26,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:26,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:26,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:26,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-07-14 07:22:26,565 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 07:22:26,571 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:22:26,573 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 07:22:26,573 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:70, output treesize:7 [2021-07-14 07:22:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:26,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256000096] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:26,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:26,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 24 [2021-07-14 07:22:26,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288387307] [2021-07-14 07:22:26,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 07:22:26,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:26,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 07:22:26,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-07-14 07:22:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:26,601 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:26,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 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 07:22:26,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:26,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:26,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:26,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:27,163 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2021-07-14 07:22:27,463 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2021-07-14 07:22:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:28,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-14 07:22:28,248 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:28,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1546552453, now seen corresponding path program 5 times [2021-07-14 07:22:28,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:28,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991977095] [2021-07-14 07:22:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:28,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:28,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991977095] [2021-07-14 07:22:28,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991977095] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:28,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677123213] [2021-07-14 07:22:28,322 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:28,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 07:22:28,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:28,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 07:22:28,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:28,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677123213] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:28,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:28,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-07-14 07:22:28,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020311364] [2021-07-14 07:22:28,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 07:22:28,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:28,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 07:22:28,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-14 07:22:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:28,533 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:28,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 24 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 07:22:28,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:28,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:28,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:28,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:28,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:29,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:29,431 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:29,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:29,431 INFO L82 PathProgramCache]: Analyzing trace with hash 945647527, now seen corresponding path program 6 times [2021-07-14 07:22:29,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:29,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225785205] [2021-07-14 07:22:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:29,869 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:29,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:29,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225785205] [2021-07-14 07:22:29,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225785205] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:29,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499247359] [2021-07-14 07:22:29,870 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:29,908 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 07:22:29,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:29,909 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-14 07:22:29,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:30,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:30,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:30,639 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:22:30,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 37 treesize of output 89 [2021-07-14 07:22:30,817 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 07:22:30,872 INFO L628 ElimStorePlain]: treesize reduction 650, result has 4.6 percent of original size [2021-07-14 07:22:30,879 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 07:22:30,879 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:19 [2021-07-14 07:22:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:30,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499247359] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:30,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:30,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 33 [2021-07-14 07:22:30,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137377300] [2021-07-14 07:22:30,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 07:22:30,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:30,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 07:22:30,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 07:22:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:30,935 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:30,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.0303030303030303) internal successors, (67), 33 states have internal predecessors, (67), 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 07:22:30,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:30,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:30,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:30,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:30,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:30,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:32,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:32,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 07:22:32,832 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:32,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:32,833 INFO L82 PathProgramCache]: Analyzing trace with hash 2010293385, now seen corresponding path program 7 times [2021-07-14 07:22:32,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:32,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789930200] [2021-07-14 07:22:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 16 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:32,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:32,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789930200] [2021-07-14 07:22:32,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789930200] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:32,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688268236] [2021-07-14 07:22:32,929 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:32,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 07:22:32,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 25 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:33,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688268236] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:33,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:33,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 28 [2021-07-14 07:22:33,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293443346] [2021-07-14 07:22:33,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-14 07:22:33,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:33,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-14 07:22:33,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2021-07-14 07:22:33,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:33,191 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:33,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.4642857142857144) internal successors, (69), 28 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 07:22:33,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:33,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:33,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:33,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:33,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:33,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:33,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:34,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-07-14 07:22:34,439 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:34,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:34,440 INFO L82 PathProgramCache]: Analyzing trace with hash -75915605, now seen corresponding path program 8 times [2021-07-14 07:22:34,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:34,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687134045] [2021-07-14 07:22:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:35,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:35,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687134045] [2021-07-14 07:22:35,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687134045] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:35,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437623031] [2021-07-14 07:22:35,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:35,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 07:22:35,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:35,092 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-07-14 07:22:35,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:35,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:35,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:35,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:35,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 19 [2021-07-14 07:22:35,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 07:22:35,564 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:22:35,565 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 07:22:35,565 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:51, output treesize:3 [2021-07-14 07:22:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:35,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437623031] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:35,587 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:35,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 07:22:35,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388819700] [2021-07-14 07:22:35,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 07:22:35,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:35,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 07:22:35,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=944, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 07:22:35,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:35,589 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:35,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.242424242424242) internal successors, (74), 33 states have internal predecessors, (74), 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 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:35,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 07:22:37,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:37,001 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:37,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1638240909, now seen corresponding path program 9 times [2021-07-14 07:22:37,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:37,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980901125] [2021-07-14 07:22:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 25 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:37,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:37,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980901125] [2021-07-14 07:22:37,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980901125] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:37,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945710469] [2021-07-14 07:22:37,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:37,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-14 07:22:37,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:37,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 07:22:37,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 36 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:37,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945710469] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:37,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:37,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 32 [2021-07-14 07:22:37,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485463602] [2021-07-14 07:22:37,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-14 07:22:37,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:37,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-14 07:22:37,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-07-14 07:22:37,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:37,494 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:37,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.40625) internal successors, (77), 32 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 07:22:37,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:37,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:37,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:37,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:37,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:37,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:37,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:37,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 07:22:37,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 07:22:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 07:22:38,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:38,969 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:38,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:38,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1136059473, now seen corresponding path program 10 times [2021-07-14 07:22:38,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:38,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794347602] [2021-07-14 07:22:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:39,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:39,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794347602] [2021-07-14 07:22:39,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794347602] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:39,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73117614] [2021-07-14 07:22:39,439 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:39,471 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 07:22:39,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:39,472 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-14 07:22:39,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:40,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:40,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:40,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:40,200 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:40,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 31 [2021-07-14 07:22:40,202 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 07:22:40,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:22:40,210 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 07:22:40,210 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:97, output treesize:7 [2021-07-14 07:22:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:40,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73117614] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:40,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:40,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 31 [2021-07-14 07:22:40,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092585620] [2021-07-14 07:22:40,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-14 07:22:40,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:40,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-14 07:22:40,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=846, Unknown=0, NotChecked=0, Total=930 [2021-07-14 07:22:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:40,235 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:40,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 07:22:40,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 07:22:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 07:22:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 07:22:41,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-07-14 07:22:41,914 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:41,915 INFO L82 PathProgramCache]: Analyzing trace with hash 176367407, now seen corresponding path program 11 times [2021-07-14 07:22:41,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:41,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732524941] [2021-07-14 07:22:41,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 6 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:42,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:42,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732524941] [2021-07-14 07:22:42,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732524941] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:42,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535394914] [2021-07-14 07:22:42,841 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:42,875 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-14 07:22:42,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:42,876 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 72 conjunts are in the unsatisfiable core [2021-07-14 07:22:42,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:43,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:43,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:43,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:43,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:43,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:43,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:43,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:43,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:43,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:43,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 07:22:43,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 23 [2021-07-14 07:22:43,642 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 07:22:43,645 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:22:43,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 07:22:43,646 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:3 [2021-07-14 07:22:43,671 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 07:22:43,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535394914] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:43,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 07:22:43,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 41 [2021-07-14 07:22:43,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515934706] [2021-07-14 07:22:43,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-14 07:22:43,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 07:22:43,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-14 07:22:43,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1493, Unknown=0, NotChecked=0, Total=1640 [2021-07-14 07:22:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:43,673 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 07:22:43,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.2195121951219514) internal successors, (91), 41 states have internal predecessors, (91), 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 07:22:43,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 07:22:43,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 07:22:45,703 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-07-14 07:22:45,891 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 91 [2021-07-14 07:22:46,191 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 87 [2021-07-14 07:22:46,332 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-07-14 07:22:46,479 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2021-07-14 07:22:46,658 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2021-07-14 07:22:46,847 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 95 [2021-07-14 07:22:47,886 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-14 07:22:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 07:22:47,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-07-14 07:22:48,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:48,157 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 07:22:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 07:22:48,158 INFO L82 PathProgramCache]: Analyzing trace with hash 698368051, now seen corresponding path program 12 times [2021-07-14 07:22:48,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 07:22:48,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716817213] [2021-07-14 07:22:48,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 07:22:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 07:22:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 16 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 07:22:49,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 07:22:49,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716817213] [2021-07-14 07:22:49,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716817213] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 07:22:49,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339640274] [2021-07-14 07:22:49,159 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 07:22:49,195 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-07-14 07:22:49,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 07:22:49,197 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 82 conjunts are in the unsatisfiable core [2021-07-14 07:22:49,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 07:22:50,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 07:22:51,181 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-07-14 07:22:51,181 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 07:22:51,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 36 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 55 case distinctions, treesize of input 75 treesize of output 565 [2021-07-14 07:22:52,029 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 1590 DAG size of output: 1114 [2021-07-14 07:22:52,719 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 1607 DAG size of output: 1131 [2021-07-14 07:22:57,290 WARN L205 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 6068 DAG size of output: 3595 [2021-07-14 07:23:01,669 WARN L205 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 6084 DAG size of output: 3611 [2021-07-14 07:23:21,982 WARN L205 SmtUtils]: Spent 18.71 s on a formula simplification. DAG size of input: 18935 DAG size of output: 10605 [2021-07-14 07:23:43,451 WARN L205 SmtUtils]: Spent 20.82 s on a formula simplification. DAG size of input: 18965 DAG size of output: 10631 [2021-07-14 07:24:25,703 WARN L205 SmtUtils]: Spent 42.17 s on a formula simplification. DAG size of input: 9954 DAG size of output: 10242 [2021-07-14 07:25:05,405 WARN L205 SmtUtils]: Spent 39.61 s on a formula simplification. DAG size of input: 9948 DAG size of output: 10382 [2021-07-14 07:25:44,831 WARN L205 SmtUtils]: Spent 39.30 s on a formula simplification. DAG size of input: 9944 DAG size of output: 10113 [2021-07-14 07:26:25,204 WARN L205 SmtUtils]: Spent 40.26 s on a formula simplification. DAG size of input: 9941 DAG size of output: 10150 [2021-07-14 07:26:42,245 WARN L205 SmtUtils]: Spent 16.94 s on a formula simplification. DAG size of input: 9936 DAG size of output: 9936 [2021-07-14 07:26:55,036 WARN L205 SmtUtils]: Spent 12.73 s on a formula simplification. DAG size of input: 8756 DAG size of output: 8756 [2021-07-14 07:27:17,467 WARN L205 SmtUtils]: Spent 22.35 s on a formula simplification. DAG size of input: 7669 DAG size of output: 8192 [2021-07-14 07:27:39,513 WARN L205 SmtUtils]: Spent 21.95 s on a formula simplification. DAG size of input: 7665 DAG size of output: 8999 [2021-07-14 07:28:02,505 WARN L205 SmtUtils]: Spent 22.92 s on a formula simplification. DAG size of input: 7662 DAG size of output: 7880 [2021-07-14 07:28:03,496 WARN L205 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 1898 DAG size of output: 1898 [2021-07-14 07:28:03,872 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 629 [2021-07-14 07:28:03,987 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 540 [2021-07-14 07:28:04,816 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1044 DAG size of output: 766 [2021-07-14 07:28:05,257 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1078 [2021-07-14 07:28:05,839 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 1680 DAG size of output: 1239 [2021-07-14 07:28:06,210 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 685 [2021-07-14 07:28:06,545 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 548 DAG size of output: 602 [2021-07-14 07:28:07,253 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 1452 DAG size of output: 1013 [2021-07-14 07:28:07,930 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 1711 DAG size of output: 1242 [2021-07-14 07:28:08,304 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 1108 DAG size of output: 1108 [2021-07-14 07:28:08,742 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 864 DAG size of output: 601 [2021-07-14 07:28:08,984 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 929 DAG size of output: 929 [2021-07-14 07:28:09,456 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 806 DAG size of output: 461 [2021-07-14 07:28:09,769 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 647 [2021-07-14 07:28:09,890 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 436 [2021-07-14 07:28:10,198 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 646 [2021-07-14 07:28:10,775 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 2225 DAG size of output: 1520 [2021-07-14 07:28:11,671 WARN L205 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 2790 DAG size of output: 1895 [2021-07-14 07:28:11,840 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 435 [2021-07-14 07:28:11,985 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 430 [2021-07-14 07:28:12,218 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 803 DAG size of output: 649 [2021-07-14 07:28:12,496 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 1031 DAG size of output: 833 [2021-07-14 07:28:15,489 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 5710 DAG size of output: 4039 [2021-07-14 07:28:15,850 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 789 DAG size of output: 605 [2021-07-14 07:28:16,193 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 419 [2021-07-14 07:28:16,549 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 964 DAG size of output: 714 [2021-07-14 07:28:16,675 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 396 [2021-07-14 07:28:17,032 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 886 DAG size of output: 684 [2021-07-14 07:28:17,216 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 525 [2021-07-14 07:28:17,767 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 908 DAG size of output: 700 [2021-07-14 07:28:18,067 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 1223 DAG size of output: 929 [2021-07-14 07:28:19,163 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 1123 DAG size of output: 1243 [2021-07-14 07:28:19,867 WARN L205 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 990 DAG size of output: 1224 [2021-07-14 07:28:21,688 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 2789 DAG size of output: 2191 [2021-07-14 07:28:23,450 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 3567 DAG size of output: 2905 [2021-07-14 07:28:24,285 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 1018 DAG size of output: 1101 [2021-07-14 07:28:24,472 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 448 DAG size of output: 477 [2021-07-14 07:28:25,175 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 1149 DAG size of output: 926 [2021-07-14 07:28:25,301 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 394 [2021-07-14 07:28:25,590 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 548 [2021-07-14 07:28:25,807 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 916 DAG size of output: 711 [2021-07-14 07:28:26,703 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 811 DAG size of output: 645 [2021-07-14 07:28:28,221 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 3364 DAG size of output: 2662 [2021-07-14 07:28:30,039 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1471 DAG size of output: 1699 [2021-07-14 07:28:30,742 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 920 DAG size of output: 688 [2021-07-14 07:28:30,875 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 402 [2021-07-14 07:28:31,197 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 885 DAG size of output: 667 [2021-07-14 07:28:31,368 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 524 [2021-07-14 07:28:31,940 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1253 DAG size of output: 924 [2021-07-14 07:28:32,205 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1555 DAG size of output: 1149 [2021-07-14 07:28:32,941 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 395 [2021-07-14 07:28:33,282 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 894 DAG size of output: 662 [2021-07-14 07:28:36,209 WARN L205 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 4986 DAG size of output: 3675 [2021-07-14 07:28:38,077 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1690 DAG size of output: 1866 [2021-07-14 07:28:38,714 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 1557 DAG size of output: 1557 [2021-07-14 07:28:39,220 WARN L205 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 957 [2021-07-14 07:28:39,667 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 759 DAG size of output: 806 [2021-07-14 07:28:39,833 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 753 DAG size of output: 753 [2021-07-14 07:28:40,643 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 1149 DAG size of output: 1034 [2021-07-14 07:28:40,847 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 627 [2021-07-14 07:28:41,537 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1062 DAG size of output: 890 [2021-07-14 07:28:41,837 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 1378 DAG size of output: 1201 [2021-07-14 07:28:42,475 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 2290 DAG size of output: 2009 [2021-07-14 07:28:43,502 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 2675 DAG size of output: 2342 [2021-07-14 07:28:45,007 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 3071 DAG size of output: 2709 [2021-07-14 07:28:45,276 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 629 [2021-07-14 07:28:45,495 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 564 [2021-07-14 07:28:46,196 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 744 DAG size of output: 655 [2021-07-14 07:28:46,412 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 898 DAG size of output: 797 [2021-07-14 07:28:47,475 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 1557 DAG size of output: 1364 [2021-07-14 07:28:48,161 WARN L205 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 1902 DAG size of output: 1650 [2021-07-14 07:28:49,130 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 2047 DAG size of output: 1782 [2021-07-14 07:28:49,446 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 544 DAG size of output: 614 [2021-07-14 07:28:50,953 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 585 [2021-07-14 07:28:51,924 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 1366 DAG size of output: 1179 [2021-07-14 07:28:52,687 WARN L205 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 2192 DAG size of output: 1881 [2021-07-14 07:28:53,767 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 2507 DAG size of output: 2140 [2021-07-14 07:28:54,594 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 823 DAG size of output: 765 [2021-07-14 07:28:54,792 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 988 DAG size of output: 909 [2021-07-14 07:28:55,083 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 1197 DAG size of output: 1064 [2021-07-14 07:28:55,510 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 1282 DAG size of output: 1142 [2021-07-14 07:28:56,074 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 1329 DAG size of output: 1187 [2021-07-14 07:29:01,111 WARN L205 SmtUtils]: Spent 5.02 s on a formula simplification. DAG size of input: 7065 DAG size of output: 5979 [2021-07-14 07:29:08,118 WARN L205 SmtUtils]: Spent 6.97 s on a formula simplification. DAG size of input: 8367 DAG size of output: 7290 [2021-07-14 07:29:09,629 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1998 DAG size of output: 1998 [2021-07-14 07:29:10,172 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 696 [2021-07-14 07:29:10,630 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 659 [2021-07-14 07:29:10,791 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 552 DAG size of output: 552 [2021-07-14 07:29:10,916 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 468 [2021-07-14 07:29:11,435 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 476 [2021-07-14 07:29:11,875 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 1079 DAG size of output: 809 [2021-07-14 07:29:12,305 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 1316 DAG size of output: 995 [2021-07-14 07:29:12,962 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 1520 DAG size of output: 1153 [2021-07-14 07:29:13,886 WARN L205 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 1798 DAG size of output: 1367 [2021-07-14 07:29:15,240 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 2145 DAG size of output: 1632 [2021-07-14 07:29:17,531 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 1689 DAG size of output: 1997 [2021-07-14 07:29:18,363 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 1552 DAG size of output: 1552 [2021-07-14 07:29:18,523 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 444 [2021-07-14 07:29:19,286 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 1079 DAG size of output: 778 [2021-07-14 07:29:19,608 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 933 [2021-07-14 07:29:20,989 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1455 DAG size of output: 1658 [2021-07-14 07:29:21,228 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 523 DAG size of output: 605 [2021-07-14 07:29:21,911 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 1390 DAG size of output: 1077 [2021-07-14 07:29:22,102 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 486 [2021-07-14 07:29:22,511 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 854 [2021-07-14 07:29:23,086 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 873 DAG size of output: 602 [2021-07-14 07:29:23,267 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 411 [2021-07-14 07:29:23,597 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1025 DAG size of output: 769 [2021-07-14 07:29:26,552 WARN L205 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 4524 DAG size of output: 3441 [2021-07-14 07:29:30,721 WARN L205 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 5257 DAG size of output: 3925 [2021-07-14 07:29:38,017 WARN L205 SmtUtils]: Spent 7.27 s on a formula simplification. DAG size of input: 6312 DAG size of output: 4761 [2021-07-14 07:29:48,485 WARN L205 SmtUtils]: Spent 10.44 s on a formula simplification. DAG size of input: 7748 DAG size of output: 5848 [2021-07-14 07:30:49,419 WARN L205 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 35125 DAG size of output: 27640 [2021-07-14 07:32:38,477 WARN L205 SmtUtils]: Spent 1.81 m on a formula simplification. DAG size of input: 38302 DAG size of output: 30707 [2021-07-14 07:35:38,064 WARN L205 SmtUtils]: Spent 2.99 m on a formula simplification. DAG size of input: 43473 DAG size of output: 35674 [2021-07-14 07:35:40,422 WARN L205 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 1828 DAG size of output: 1983 [2021-07-14 07:35:42,575 WARN L205 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 1759 DAG size of output: 1843 [2021-07-14 07:35:44,554 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1755 DAG size of output: 1807 [2021-07-14 07:35:46,487 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1751 DAG size of output: 1938 [2021-07-14 07:35:48,514 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 1748 DAG size of output: 1773 [2021-07-14 07:35:48,714 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 540 [2021-07-14 07:35:49,122 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 1037 DAG size of output: 778 [2021-07-14 07:35:49,786 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 959 DAG size of output: 757 [2021-07-14 07:35:50,866 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 919 DAG size of output: 670 [2021-07-14 07:35:51,689 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 930 [2021-07-14 07:35:51,959 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 1435 DAG size of output: 1181 [2021-07-14 07:35:52,280 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 615 [2021-07-14 07:35:52,514 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 473 DAG size of output: 545 [2021-07-14 07:35:53,033 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 1031 DAG size of output: 783 [2021-07-14 07:35:53,547 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 1327 DAG size of output: 1009 [2021-07-14 07:35:57,338 WARN L205 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 6076 DAG size of output: 4624 [2021-07-14 07:36:02,748 WARN L205 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 6773 DAG size of output: 5261 [2021-07-14 07:36:10,024 WARN L205 SmtUtils]: Spent 7.24 s on a formula simplification. DAG size of input: 7808 DAG size of output: 6209 [2021-07-14 07:36:19,679 WARN L205 SmtUtils]: Spent 9.62 s on a formula simplification. DAG size of input: 8901 DAG size of output: 7197 [2021-07-14 07:36:31,963 WARN L205 SmtUtils]: Spent 12.24 s on a formula simplification. DAG size of input: 9885 DAG size of output: 8064 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown