/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 22:42:30,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 22:42:30,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 22:42:30,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 22:42:30,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 22:42:30,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 22:42:30,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 22:42:30,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 22:42:30,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 22:42:30,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 22:42:30,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 22:42:30,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-07-14 22:42:31,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf [2021-07-14 22:42:31,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 22:42:31,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 22:42:31,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 22:42:31,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 22:42:31,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 22:42:31,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 22:42:31,045 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 22:42:31,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 22:42:31,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 22:42:31,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 22:42:31,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 22:42:31,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 22:42:31,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 22:42:31,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 22:42:31,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 22:42:31,047 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 22:42:31,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 22:42:31,047 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 22:42:31,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 22:42:31,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 22:42:31,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 22:42:31,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 22:42:31,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 22:42:31,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 22:42:31,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 22:42:31,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 22:42:31,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 22:42:31,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 22:42:31,049 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 22:42:31,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 22:42:31,049 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 22:42:31,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 22:42:31,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 22:42:31,050 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 22:42:31,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 22:42:31,050 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 22:42:31,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 22:42:31,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 22:42:31,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 22:42:31,376 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 22:42:31,377 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 22:42:31,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl [2021-07-14 22:42:31,378 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl' [2021-07-14 22:42:31,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 22:42:31,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 22:42:31,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 22:42:31,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 22:42:31,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 22:42:31,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 22:42:31,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 22:42:31,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 22:42:31,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 22:42:31,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/1) ... [2021-07-14 22:42:31,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 22:42:31,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 22:42:31,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 22:42:31,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 22:42:31,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (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 22:42:31,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 22:42:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 22:42:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 22:42:31,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 22:42:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 22:42:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 22:42:31,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 22:42:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 22:42:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 22:42:31,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 22:42:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 22:42:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 22:42:31,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 22:42:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 22:42:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 22:42:31,558 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 22:42:31,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 22:42:31,843 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-14 22:42:31,844 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 22:42:31,844 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-14 22:42:31,844 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-07-14 22:42:31,844 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2021-07-14 22:42:31,846 INFO L202 PluginConnector]: Adding new model parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:42:31 BoogieIcfgContainer [2021-07-14 22:42:31,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 22:42:31,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 22:42:31,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 22:42:31,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 22:42:31,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:42:31" (1/2) ... [2021-07-14 22:42:31,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d96ff20 and model type parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 10:42:31, skipping insertion in model container [2021-07-14 22:42:31,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:42:31" (2/2) ... [2021-07-14 22:42:31,851 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-1.wvr.bpl [2021-07-14 22:42:31,855 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 22:42:31,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 22:42:31,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 22:42:31,856 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 22:42:31,890 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 22:42:31,917 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 22:42:32,008 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 22:42:32,008 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 22:42:32,008 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 22:42:32,009 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 22:42:32,009 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 22:42:32,009 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 22:42:32,009 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 22:42:32,009 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 22:42:32,222 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:32,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1635006241, now seen corresponding path program 1 times [2021-07-14 22:42:32,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:32,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991325484] [2021-07-14 22:42:32,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:32,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:32,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991325484] [2021-07-14 22:42:32,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991325484] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:32,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983074419] [2021-07-14 22:42:32,467 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 22:42:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:32,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 22:42:32,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:32,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983074419] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 22:42:32,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-14 22:42:32,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-07-14 22:42:32,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972816087] [2021-07-14 22:42:32,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 22:42:32,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:32,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 22:42:32,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-07-14 22:42:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:32,705 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:32,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 22:42:32,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:32,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 22:42:32,968 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:32,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1856964444, now seen corresponding path program 1 times [2021-07-14 22:42:32,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:32,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080934695] [2021-07-14 22:42:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:33,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:33,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080934695] [2021-07-14 22:42:33,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080934695] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:33,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114497430] [2021-07-14 22:42:33,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:33,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 22:42:33,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:33,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114497430] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:33,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:33,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2021-07-14 22:42:33,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458487176] [2021-07-14 22:42:33,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 22:42:33,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:33,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 22:42:33,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-07-14 22:42:33,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:33,250 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:33,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:42:33,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:33,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:33,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:33,509 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:33,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1643599909, now seen corresponding path program 2 times [2021-07-14 22:42:33,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:33,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628145668] [2021-07-14 22:42:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:33,969 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 22:42:33,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:33,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628145668] [2021-07-14 22:42:33,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628145668] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:33,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132433235] [2021-07-14 22:42:33,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:34,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:42:34,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:34,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 44 conjunts are in the unsatisfiable core [2021-07-14 22:42:34,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:34,581 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-07-14 22:42:34,585 INFO L354 Elim1Store]: treesize reduction 10, result has 88.8 percent of original size [2021-07-14 22:42:34,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 29 treesize of output 93 [2021-07-14 22:42:35,261 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 22:42:35,899 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 79 [2021-07-14 22:42:35,905 INFO L628 ElimStorePlain]: treesize reduction 709, result has 24.1 percent of original size [2021-07-14 22:42:36,162 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2021-07-14 22:42:36,165 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:1232 [2021-07-14 22:42:36,864 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 63 [2021-07-14 22:42:37,138 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 36 [2021-07-14 22:42:37,188 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 22:42:37,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132433235] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:37,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:37,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-07-14 22:42:37,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667244404] [2021-07-14 22:42:37,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-14 22:42:37,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:37,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-14 22:42:37,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2021-07-14 22:42:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:37,191 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:37,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 27 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:42:37,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:37,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:37,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:37,348 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2021-07-14 22:42:37,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:37,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:37,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:38,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:38,039 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:38,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:38,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1568416922, now seen corresponding path program 3 times [2021-07-14 22:42:38,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:38,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055387516] [2021-07-14 22:42:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:38,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:38,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055387516] [2021-07-14 22:42:38,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055387516] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:38,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813553663] [2021-07-14 22:42:38,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:38,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 22:42:38,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:38,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 22:42:38,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:38,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813553663] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:38,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:38,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2021-07-14 22:42:38,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445290199] [2021-07-14 22:42:38,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 22:42:38,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:38,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 22:42:38,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-07-14 22:42:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:38,258 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:38,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:42:38,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:38,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:38,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:38,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:38,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:38,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-07-14 22:42:38,537 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:38,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:38,538 INFO L82 PathProgramCache]: Analyzing trace with hash -254901800, now seen corresponding path program 4 times [2021-07-14 22:42:38,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:38,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401711697] [2021-07-14 22:42:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:38,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:38,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401711697] [2021-07-14 22:42:38,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401711697] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:38,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117598858] [2021-07-14 22:42:38,630 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:38,668 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 22:42:38,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:38,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 22:42:38,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:38,742 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:38,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117598858] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:38,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:38,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 11 [2021-07-14 22:42:38,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977957056] [2021-07-14 22:42:38,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 22:42:38,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:38,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 22:42:38,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-07-14 22:42:38,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:38,744 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:38,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 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 22:42:38,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:38,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:38,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:38,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:38,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:39,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-07-14 22:42:39,013 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:39,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:39,013 INFO L82 PathProgramCache]: Analyzing trace with hash 175846231, now seen corresponding path program 5 times [2021-07-14 22:42:39,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:39,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468957243] [2021-07-14 22:42:39,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:39,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:39,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468957243] [2021-07-14 22:42:39,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468957243] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:39,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439266886] [2021-07-14 22:42:39,620 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:39,663 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 22:42:39,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:39,665 WARN L261 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 67 conjunts are in the unsatisfiable core [2021-07-14 22:42:39,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:40,645 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:42:40,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 91 [2021-07-14 22:42:40,744 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 22:42:40,786 INFO L628 ElimStorePlain]: treesize reduction 626, result has 1.6 percent of original size [2021-07-14 22:42:40,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 22:42:40,787 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:10 [2021-07-14 22:42:40,851 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:40,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439266886] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:40,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:40,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 41 [2021-07-14 22:42:40,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258672893] [2021-07-14 22:42:40,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-14 22:42:40,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:40,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-14 22:42:40,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1574, Unknown=0, NotChecked=0, Total=1722 [2021-07-14 22:42:40,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:40,854 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:40,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 41 states have internal predecessors, (60), 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 22:42:40,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:40,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:40,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:40,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:40,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:40,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:42,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:42,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:42,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:42,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:42,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:42,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:42,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:42,469 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:42,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:42,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1807843606, now seen corresponding path program 6 times [2021-07-14 22:42:42,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:42,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352431463] [2021-07-14 22:42:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:42,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:42,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352431463] [2021-07-14 22:42:42,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352431463] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:42,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061276160] [2021-07-14 22:42:42,548 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:42,595 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 22:42:42,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:42,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 22:42:42,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:42,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061276160] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:42,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:42,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 12 [2021-07-14 22:42:42,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271861949] [2021-07-14 22:42:42,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 22:42:42,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:42,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 22:42:42,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-07-14 22:42:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:42,694 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:42,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:42:42,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:42,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:42,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:42,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:42,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:42,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:42,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:42,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-07-14 22:42:42,984 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:42,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1809399892, now seen corresponding path program 7 times [2021-07-14 22:42:42,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:42,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326481151] [2021-07-14 22:42:42,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:43,079 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 36 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:43,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:43,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326481151] [2021-07-14 22:42:43,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326481151] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:43,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601689850] [2021-07-14 22:42:43,080 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:43,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 22:42:43,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 49 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:43,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601689850] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:43,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:43,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 13 [2021-07-14 22:42:43,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960940478] [2021-07-14 22:42:43,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 22:42:43,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:43,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 22:42:43,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=107, Unknown=0, NotChecked=0, Total=182 [2021-07-14 22:42:43,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:43,221 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:43,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 13 states have internal predecessors, (57), 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 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:43,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:43,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:43,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:43,502 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:43,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:43,502 INFO L82 PathProgramCache]: Analyzing trace with hash -130546989, now seen corresponding path program 8 times [2021-07-14 22:42:43,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:43,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342964668] [2021-07-14 22:42:43,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:44,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:44,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342964668] [2021-07-14 22:42:44,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342964668] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:44,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067297963] [2021-07-14 22:42:44,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:44,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:42:44,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:44,573 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 91 conjunts are in the unsatisfiable core [2021-07-14 22:42:44,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:46,195 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:42:46,196 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 8 new quantified variables, introduced 13 case distinctions, treesize of input 51 treesize of output 127 [2021-07-14 22:42:46,524 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 245 [2021-07-14 22:42:46,726 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 245 [2021-07-14 22:42:46,872 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 231 [2021-07-14 22:42:46,876 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 22:42:47,038 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 10 [2021-07-14 22:42:47,039 INFO L628 ElimStorePlain]: treesize reduction 3386, result has 0.3 percent of original size [2021-07-14 22:42:47,042 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 22:42:47,043 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:10 [2021-07-14 22:42:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:47,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067297963] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:47,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:47,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 57 [2021-07-14 22:42:47,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016671585] [2021-07-14 22:42:47,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-07-14 22:42:47,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:47,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-07-14 22:42:47,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=3046, Unknown=0, NotChecked=0, Total=3306 [2021-07-14 22:42:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:47,151 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:47,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 57 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:47,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:47,429 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 22:42:47,679 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-07-14 22:42:47,914 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 22:42:48,123 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-07-14 22:42:48,339 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 22:42:48,565 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-07-14 22:42:48,770 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 22:42:48,976 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-07-14 22:42:49,222 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-07-14 22:42:49,408 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 22:42:50,160 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-07-14 22:42:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:42:50,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:50,364 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:50,364 INFO L82 PathProgramCache]: Analyzing trace with hash -403693166, now seen corresponding path program 9 times [2021-07-14 22:42:50,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:50,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008954768] [2021-07-14 22:42:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 36 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:50,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:50,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008954768] [2021-07-14 22:42:50,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008954768] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:50,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768449405] [2021-07-14 22:42:50,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:50,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-14 22:42:50,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:50,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-14 22:42:50,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 50 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:50,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768449405] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:50,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:50,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2021-07-14 22:42:50,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648217999] [2021-07-14 22:42:50,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 22:42:50,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:50,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 22:42:50,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2021-07-14 22:42:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:50,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:50,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 14 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 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:42:50,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:42:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:42:50,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2021-07-14 22:42:50,941 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:50,941 INFO L82 PathProgramCache]: Analyzing trace with hash -158645552, now seen corresponding path program 10 times [2021-07-14 22:42:50,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:50,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020725954] [2021-07-14 22:42:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 64 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:51,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:51,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020725954] [2021-07-14 22:42:51,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020725954] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:51,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022323331] [2021-07-14 22:42:51,081 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 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 22:42:51,132 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 22:42:51,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:51,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-14 22:42:51,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 81 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:51,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022323331] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:51,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:42:51,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 15 [2021-07-14 22:42:51,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049761055] [2021-07-14 22:42:51,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 22:42:51,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:42:51,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 22:42:51,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=138, Unknown=0, NotChecked=0, Total=240 [2021-07-14 22:42:51,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:51,280 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:42:51,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 15 states have internal predecessors, (65), 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 22:42:51,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:51,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:51,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:51,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:51,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:51,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:51,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:51,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:51,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:42:51,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:42:51,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:42:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:42:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:42:51,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:42:51,540 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:42:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:42:51,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1359276465, now seen corresponding path program 11 times [2021-07-14 22:42:51,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:42:51,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461790471] [2021-07-14 22:42:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:42:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:42:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:42:52,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:42:52,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461790471] [2021-07-14 22:42:52,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461790471] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:42:52,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36226436] [2021-07-14 22:42:52,952 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 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 22:42:52,998 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-07-14 22:42:52,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:42:53,000 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 115 conjunts are in the unsatisfiable core [2021-07-14 22:42:53,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:42:55,694 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:42:55,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 17 case distinctions, treesize of input 63 treesize of output 163 [2021-07-14 22:42:56,118 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 251 [2021-07-14 22:42:56,275 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 262 [2021-07-14 22:42:56,706 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 344 [2021-07-14 22:42:58,334 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 673 DAG size of output: 476 [2021-07-14 22:42:59,965 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 673 DAG size of output: 476 [2021-07-14 22:43:01,098 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 353 DAG size of output: 331 [2021-07-14 22:43:01,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 22:43:01,378 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 10 [2021-07-14 22:43:01,378 INFO L628 ElimStorePlain]: treesize reduction 27582, result has 0.0 percent of original size [2021-07-14 22:43:01,379 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 22:43:01,379 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:10 [2021-07-14 22:43:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:43:01,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36226436] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:43:01,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:43:01,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 73 [2021-07-14 22:43:01,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785774940] [2021-07-14 22:43:01,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-07-14 22:43:01,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:43:01,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-07-14 22:43:01,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=4998, Unknown=0, NotChecked=0, Total=5402 [2021-07-14 22:43:01,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:01,481 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:43:01,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 73 states have internal predecessors, (92), 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 22:43:01,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:43:01,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:43:01,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:43:01,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:01,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:01,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:43:01,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:01,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:01,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:43:01,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:01,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:01,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:01,829 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 22:43:02,189 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-07-14 22:43:02,545 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 22:43:02,826 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 22:43:03,134 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 22:43:03,413 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 22:43:03,728 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 22:43:04,032 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 22:43:04,337 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 22:43:04,633 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 22:43:04,926 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 22:43:05,222 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-07-14 22:43:05,551 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-14 22:43:05,834 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-14 22:43:06,773 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-07-14 22:43:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:43:06,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-07-14 22:43:06,976 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:43:06,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:43:06,976 INFO L82 PathProgramCache]: Analyzing trace with hash 180618766, now seen corresponding path program 12 times [2021-07-14 22:43:06,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:43:06,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828299082] [2021-07-14 22:43:06,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:43:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:43:07,096 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 64 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:43:07,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:43:07,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828299082] [2021-07-14 22:43:07,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828299082] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:43:07,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188683397] [2021-07-14 22:43:07,096 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:43:07,162 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-07-14 22:43:07,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:43:07,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 22:43:07,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:43:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 82 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:43:07,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188683397] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:43:07,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:43:07,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 16 [2021-07-14 22:43:07,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794008915] [2021-07-14 22:43:07,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 22:43:07,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:43:07,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 22:43:07,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=167, Unknown=0, NotChecked=0, Total=272 [2021-07-14 22:43:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:07,275 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:43:07,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 16 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 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:07,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:07,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:43:07,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:07,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:07,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:43:07,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:43:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:43:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:43:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:43:07,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:43:07,618 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:43:07,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:43:07,619 INFO L82 PathProgramCache]: Analyzing trace with hash 195070284, now seen corresponding path program 13 times [2021-07-14 22:43:07,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:43:07,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707816786] [2021-07-14 22:43:07,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:43:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:43:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 100 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:43:07,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:43:07,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707816786] [2021-07-14 22:43:07,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707816786] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:43:07,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109159442] [2021-07-14 22:43:07,763 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:43:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:43:07,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-14 22:43:07,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:43:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 121 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:43:07,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109159442] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:43:07,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:43:07,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 17 [2021-07-14 22:43:07,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031167712] [2021-07-14 22:43:07,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 22:43:07,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:43:07,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 22:43:07,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=173, Unknown=0, NotChecked=0, Total=306 [2021-07-14 22:43:07,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:07,944 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:43:07,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 17 states have internal predecessors, (73), 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 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:43:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:43:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:43:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:43:08,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:43:08,225 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:43:08,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:43:08,225 INFO L82 PathProgramCache]: Analyzing trace with hash -629117493, now seen corresponding path program 14 times [2021-07-14 22:43:08,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:43:08,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954467120] [2021-07-14 22:43:08,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:43:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:43:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:43:10,319 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:43:10,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954467120] [2021-07-14 22:43:10,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954467120] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:43:10,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697304605] [2021-07-14 22:43:10,319 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:43:10,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:43:10,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:43:10,369 WARN L261 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 139 conjunts are in the unsatisfiable core [2021-07-14 22:43:10,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:43:14,603 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:43:14,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 45 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 199 [2021-07-14 22:43:14,876 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 263 [2021-07-14 22:43:15,066 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 274 [2021-07-14 22:43:15,511 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 443 DAG size of output: 319 [2021-07-14 22:43:15,889 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 330 [2021-07-14 22:43:17,008 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 586 DAG size of output: 478 [2021-07-14 22:43:18,203 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 596 DAG size of output: 489 [2021-07-14 22:43:21,492 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 748 DAG size of output: 572 [2021-07-14 22:43:34,567 WARN L205 SmtUtils]: Spent 13.04 s on a formula simplification. DAG size of input: 1252 DAG size of output: 832 [2021-07-14 22:43:47,563 WARN L205 SmtUtils]: Spent 12.97 s on a formula simplification. DAG size of input: 1252 DAG size of output: 832 [2021-07-14 22:43:57,432 WARN L205 SmtUtils]: Spent 9.87 s on a formula simplification. DAG size of input: 597 DAG size of output: 508 [2021-07-14 22:43:57,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 22:43:57,932 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 10 [2021-07-14 22:43:57,932 INFO L628 ElimStorePlain]: treesize reduction 162398, result has 0.0 percent of original size [2021-07-14 22:43:57,932 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 22:43:57,933 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:10 [2021-07-14 22:43:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:43:58,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697304605] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:43:58,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:43:58,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 89 [2021-07-14 22:43:58,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545018723] [2021-07-14 22:43:58,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-07-14 22:43:58,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:43:58,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-07-14 22:43:58,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=580, Invalid=7430, Unknown=0, NotChecked=0, Total=8010 [2021-07-14 22:43:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:58,070 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:43:58,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 1.2) internal successors, (108), 89 states have internal predecessors, (108), 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 22:43:58,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:43:58,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:43:58,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:43:58,516 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:43:58,978 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-07-14 22:43:59,416 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:43:59,809 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 22:44:00,252 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:44:00,659 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 22:44:01,076 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:44:01,465 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 22:44:01,877 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:44:02,274 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 22:44:02,705 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:44:03,090 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 22:44:03,513 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:44:03,907 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 22:44:04,318 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:44:04,718 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-07-14 22:44:05,230 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-07-14 22:44:05,610 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-14 22:44:06,797 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:44:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:44:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:44:07,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:44:07,021 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:44:07,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:44:07,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1895378570, now seen corresponding path program 15 times [2021-07-14 22:44:07,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:44:07,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442762874] [2021-07-14 22:44:07,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:44:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:44:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 100 proven. 143 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:44:07,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:44:07,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442762874] [2021-07-14 22:44:07,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442762874] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:44:07,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868790246] [2021-07-14 22:44:07,162 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:44:07,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-07-14 22:44:07,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:44:07,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-14 22:44:07,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:44:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 122 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:44:07,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868790246] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:44:07,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:44:07,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 18 [2021-07-14 22:44:07,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792417644] [2021-07-14 22:44:07,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 22:44:07,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:44:07,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 22:44:07,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=208, Unknown=0, NotChecked=0, Total=342 [2021-07-14 22:44:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:44:07,338 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:44:07,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.052631578947368) internal successors, (77), 18 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 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:44:07,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:07,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:07,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:44:07,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:07,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:07,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:44:07,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:44:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:44:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:44:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:44:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:44:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:44:07,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable235 [2021-07-14 22:44:07,696 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:44:07,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:44:07,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1982524472, now seen corresponding path program 16 times [2021-07-14 22:44:07,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:44:07,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817475180] [2021-07-14 22:44:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:44:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:44:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 144 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:44:07,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:44:07,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817475180] [2021-07-14 22:44:07,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817475180] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:44:07,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175646814] [2021-07-14 22:44:07,861 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:44:07,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 22:44:07,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:44:07,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 28 conjunts are in the unsatisfiable core [2021-07-14 22:44:07,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:44:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 169 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:44:08,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175646814] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:44:08,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:44:08,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 19 [2021-07-14 22:44:08,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676288720] [2021-07-14 22:44:08,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 22:44:08,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:44:08,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 22:44:08,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=212, Unknown=0, NotChecked=0, Total=380 [2021-07-14 22:44:08,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:44:08,061 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:44:08,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.05) internal successors, (81), 19 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:44:08,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:44:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:44:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:44:08,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable236 [2021-07-14 22:44:08,344 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:44:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:44:08,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1971058361, now seen corresponding path program 17 times [2021-07-14 22:44:08,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:44:08,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909766008] [2021-07-14 22:44:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:44:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:44:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:44:11,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:44:11,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909766008] [2021-07-14 22:44:11,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909766008] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:44:11,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004602610] [2021-07-14 22:44:11,200 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:44:11,262 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-07-14 22:44:11,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:44:11,264 WARN L261 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 163 conjunts are in the unsatisfiable core [2021-07-14 22:44:11,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:44:17,176 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:44:17,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 66 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 25 case distinctions, treesize of input 87 treesize of output 235 [2021-07-14 22:44:17,599 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 248 [2021-07-14 22:44:17,787 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 259 [2021-07-14 22:44:18,202 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 318 [2021-07-14 22:44:18,637 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 329 [2021-07-14 22:44:19,783 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 528 DAG size of output: 394 [2021-07-14 22:44:21,003 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 540 DAG size of output: 406 [2021-07-14 22:44:24,440 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 682 DAG size of output: 542 [2021-07-14 22:44:28,194 WARN L205 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 694 DAG size of output: 554 [2021-07-14 22:44:39,028 WARN L205 SmtUtils]: Spent 10.81 s on a formula simplification. DAG size of input: 857 DAG size of output: 684 [2021-07-14 22:44:50,671 WARN L205 SmtUtils]: Spent 11.64 s on a formula simplification. DAG size of input: 867 DAG size of output: 695 [2021-07-14 22:45:24,901 WARN L205 SmtUtils]: Spent 34.20 s on a formula simplification. DAG size of input: 1032 DAG size of output: 805 [2021-07-14 22:47:44,426 WARN L205 SmtUtils]: Spent 2.32 m on a formula simplification. DAG size of input: 1738 DAG size of output: 1198 [2021-07-14 22:50:03,473 WARN L205 SmtUtils]: Spent 2.32 m on a formula simplification. DAG size of input: 1738 DAG size of output: 1198 [2021-07-14 22:51:50,101 WARN L205 SmtUtils]: Spent 1.78 m on a formula simplification. DAG size of input: 992 DAG size of output: 762 [2021-07-14 22:51:50,130 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 22:51:51,523 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 992 DAG size of output: 10 [2021-07-14 22:51:51,523 INFO L628 ElimStorePlain]: treesize reduction 1393174, result has 0.0 percent of original size [2021-07-14 22:51:51,524 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 22:51:51,524 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:10 [2021-07-14 22:51:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:51:51,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004602610] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:51:51,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:51:51,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 105 [2021-07-14 22:51:51,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340349144] [2021-07-14 22:51:51,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 106 states [2021-07-14 22:51:51,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:51:51,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-07-14 22:51:51,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=788, Invalid=10342, Unknown=0, NotChecked=0, Total=11130 [2021-07-14 22:51:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:51:51,668 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:51:51,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 106 states, 106 states have (on average 1.169811320754717) internal successors, (124), 105 states have internal predecessors, (124), 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 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:51:51,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:51:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:51:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:51:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:51:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:51:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:51:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:51:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:51:52,264 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:51:52,840 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-07-14 22:51:53,401 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:51:53,933 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:51:54,488 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:51:55,005 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:51:55,555 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:51:56,080 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:51:56,639 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:51:57,164 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:51:57,723 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:51:58,248 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:51:58,801 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:51:59,321 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:51:59,866 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:52:00,381 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:52:00,924 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:52:01,445 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:52:01,989 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:52:02,524 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-07-14 22:52:03,137 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-07-14 22:52:03,665 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 22:52:05,141 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:05,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 22:52:05,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable237 [2021-07-14 22:52:05,345 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:52:05,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:52:05,346 INFO L82 PathProgramCache]: Analyzing trace with hash 457939718, now seen corresponding path program 18 times [2021-07-14 22:52:05,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:52:05,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609802244] [2021-07-14 22:52:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:52:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:52:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 144 proven. 195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:52:05,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:52:05,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609802244] [2021-07-14 22:52:05,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609802244] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:52:05,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979989864] [2021-07-14 22:52:05,547 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:52:05,627 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-14 22:52:05,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:52:05,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-14 22:52:05,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:52:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 170 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:52:05,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979989864] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:52:05,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:52:05,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 20 [2021-07-14 22:52:05,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568391458] [2021-07-14 22:52:05,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 22:52:05,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:52:05,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 22:52:05,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=253, Unknown=0, NotChecked=0, Total=420 [2021-07-14 22:52:05,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:52:05,768 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:52:05,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 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 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:05,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 22:52:05,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:52:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:52:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 22:52:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:52:06,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable342 [2021-07-14 22:52:06,147 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:52:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:52:06,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1276845500, now seen corresponding path program 19 times [2021-07-14 22:52:06,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:52:06,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062840109] [2021-07-14 22:52:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:52:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:52:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 196 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:52:06,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:52:06,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062840109] [2021-07-14 22:52:06,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062840109] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:52:06,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503319318] [2021-07-14 22:52:06,346 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:52:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:52:06,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 22:52:06,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:52:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 225 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:52:06,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503319318] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:52:06,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 22:52:06,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 21 [2021-07-14 22:52:06,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000720325] [2021-07-14 22:52:06,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 22:52:06,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:52:06,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 22:52:06,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=255, Unknown=0, NotChecked=0, Total=462 [2021-07-14 22:52:06,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:52:06,554 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:52:06,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 4.045454545454546) internal successors, (89), 21 states have internal predecessors, (89), 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 22:52:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:52:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:52:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:52:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:06,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:52:06,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 22:52:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-14 22:52:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 22:52:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-14 22:52:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:52:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 22:52:06,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable343 [2021-07-14 22:52:06,862 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:52:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:52:06,862 INFO L82 PathProgramCache]: Analyzing trace with hash 851568835, now seen corresponding path program 20 times [2021-07-14 22:52:06,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:52:06,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773859187] [2021-07-14 22:52:06,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:52:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:52:10,796 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 22:52:10,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:52:10,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773859187] [2021-07-14 22:52:10,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773859187] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 22:52:10,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166535392] [2021-07-14 22:52:10,796 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 22:52:10,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 22:52:10,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 22:52:10,856 WARN L261 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 187 conjunts are in the unsatisfiable core [2021-07-14 22:52:10,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 22:52:19,606 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-07-14 22:52:19,606 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 22:52:19,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 91 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 29 case distinctions, treesize of input 99 treesize of output 271 [2021-07-14 22:52:19,864 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 243 [2021-07-14 22:52:19,998 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 255 [2021-07-14 22:52:20,282 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 352 [2021-07-14 22:52:20,589 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 437 DAG size of output: 364 [2021-07-14 22:52:21,406 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 462 [2021-07-14 22:52:22,344 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 474 [2021-07-14 22:52:24,743 WARN L205 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 705 DAG size of output: 606 [2021-07-14 22:52:27,335 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 716 DAG size of output: 618 [2021-07-14 22:52:34,243 WARN L205 SmtUtils]: Spent 6.88 s on a formula simplification. DAG size of input: 863 DAG size of output: 734 [2021-07-14 22:52:41,779 WARN L205 SmtUtils]: Spent 7.53 s on a formula simplification. DAG size of input: 875 DAG size of output: 746 [2021-07-14 22:53:02,062 WARN L205 SmtUtils]: Spent 20.25 s on a formula simplification. DAG size of input: 1085 DAG size of output: 889 [2021-07-14 22:53:24,159 WARN L205 SmtUtils]: Spent 22.09 s on a formula simplification. DAG size of input: 1096 DAG size of output: 900 [2021-07-14 22:54:26,117 WARN L205 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 1379 DAG size of output: 1089 [2021-07-14 22:55:33,120 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 1389 DAG size of output: 1100 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown