/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 05:31:32,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 05:31:32,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 05:31:32,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-14 05:31:32,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-14 05:31:32,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-14 05:31:32,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-14 05:31:32,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-14 05:31:32,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-14 05:31:32,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-14 05:31:32,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-14 05:31:32,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-14 05:31:32,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-14 05:31:32,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-14 05:31:32,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-14 05:31:32,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-14 05:31:32,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-14 05:31:32,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-14 05:31:32,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-14 05:31:32,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-14 05:31:32,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-14 05:31:32,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-14 05:31:32,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-14 05:31:32,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-14 05:31:32,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-14 05:31:32,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-14 05:31:32,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-14 05:31:32,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-14 05:31:32,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-14 05:31:32,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-14 05:31:32,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-14 05:31:32,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-14 05:31:32,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-14 05:31:32,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-14 05:31:32,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-14 05:31:32,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-14 05:31:32,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-14 05:31:32,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-14 05:31:32,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 05:31:32,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 05:31:32,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 05:31:32,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf [2021-06-14 05:31:32,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 05:31:32,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 05:31:32,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 05:31:32,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 05:31:32,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 05:31:32,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 05:31:32,629 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 05:31:32,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 05:31:32,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 05:31:32,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 05:31:32,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 05:31:32,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 05:31:32,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 05:31:32,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 05:31:32,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 05:31:32,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 05:31:32,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 05:31:32,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 05:31:32,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 05:31:32,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 05:31:32,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 05:31:32,632 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 05:31:32,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 05:31:32,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 05:31:32,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 05:31:32,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 05:31:32,633 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 05:31:32,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 05:31:32,633 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 05:31:32,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 05:31:32,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 05:31:32,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 05:31:32,911 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 05:31:32,912 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 05:31:32,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl [2021-06-14 05:31:32,926 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl' [2021-06-14 05:31:32,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 05:31:32,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 05:31:32,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 05:31:32,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 05:31:32,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 05:31:33,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 05:31:33,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 05:31:33,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 05:31:33,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 05:31:33,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/1) ... [2021-06-14 05:31:33,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 05:31:33,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 05:31:33,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 05:31:33,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 05:31:33,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (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 [2021-06-14 05:31:33,085 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 05:31:33,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 05:31:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 05:31:33,086 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 05:31:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 05:31:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 05:31:33,086 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 05:31:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 05:31:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 05:31:33,087 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 05:31:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 05:31:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 05:31:33,088 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 05:31:33,202 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 05:31:33,202 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 05:31:33,204 INFO L202 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 05:31:33 BoogieIcfgContainer [2021-06-14 05:31:33,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 05:31:33,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 05:31:33,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 05:31:33,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 05:31:33,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:31:32" (1/2) ... [2021-06-14 05:31:33,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ceeaf2 and model type array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 05:31:33, skipping insertion in model container [2021-06-14 05:31:33,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 05:31:33" (2/2) ... [2021-06-14 05:31:33,208 INFO L111 eAbstractionObserver]: Analyzing ICFG array-sum-alt.wvr.bpl [2021-06-14 05:31:33,211 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 05:31:33,211 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 05:31:33,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 05:31:33,212 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 05:31:33,242 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 05:31:33,272 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 05:31:33,330 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 05:31:33,330 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 05:31:33,330 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 05:31:33,331 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 05:31:33,331 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 05:31:33,331 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 05:31:33,331 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 05:31:33,331 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 05:31:33,397 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:33,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:33,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1991829365, now seen corresponding path program 1 times [2021-06-14 05:31:33,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:33,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575493102] [2021-06-14 05:31:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:33,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:33,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575493102] [2021-06-14 05:31:33,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575493102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 05:31:33,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 05:31:33,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-14 05:31:33,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866452306] [2021-06-14 05:31:33,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-14 05:31:33,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:33,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-14 05:31:33,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-14 05:31:33,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:33,585 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:33,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-06-14 05:31:33,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:33,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 05:31:33,621 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:33,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1020349274, now seen corresponding path program 1 times [2021-06-14 05:31:33,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:33,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065755534] [2021-06-14 05:31:33,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:33,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:33,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:33,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065755534] [2021-06-14 05:31:33,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065755534] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:33,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742051431] [2021-06-14 05:31:33,734 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 [2021-06-14 05:31:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:33,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-14 05:31:33,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:33,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:33,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742051431] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:33,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:33,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-06-14 05:31:33,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632981958] [2021-06-14 05:31:33,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-14 05:31:33,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:33,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-14 05:31:33,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-14 05:31:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:33,966 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:33,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:31:33,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:33,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:34,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:34,342 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:34,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:34,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1618464424, now seen corresponding path program 1 times [2021-06-14 05:31:34,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:34,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122302634] [2021-06-14 05:31:34,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:34,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:34,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122302634] [2021-06-14 05:31:34,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122302634] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:34,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577640902] [2021-06-14 05:31:34,433 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 [2021-06-14 05:31:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:34,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-14 05:31:34,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:34,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 05:31:34,606 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:34,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:34,608 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:34,608 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-14 05:31:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:34,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577640902] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:34,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:34,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-06-14 05:31:34,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621284062] [2021-06-14 05:31:34,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-14 05:31:34,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:34,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-14 05:31:34,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-14 05:31:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:34,640 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:34,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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) [2021-06-14 05:31:34,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:34,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:34,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:34,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:34,919 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:34,920 INFO L82 PathProgramCache]: Analyzing trace with hash -830646915, now seen corresponding path program 2 times [2021-06-14 05:31:34,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:34,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262625771] [2021-06-14 05:31:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:34,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:34,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262625771] [2021-06-14 05:31:34,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262625771] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:34,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669398453] [2021-06-14 05:31:34,978 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 [2021-06-14 05:31:35,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 05:31:35,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:35,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-14 05:31:35,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:35,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669398453] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:35,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:35,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-14 05:31:35,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965806177] [2021-06-14 05:31:35,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-14 05:31:35,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:35,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-14 05:31:35,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-14 05:31:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:35,110 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:35,110 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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) [2021-06-14 05:31:35,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:35,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:35,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:35,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:35,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:35,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:35,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:35,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:35,468 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:35,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:35,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1560817579, now seen corresponding path program 3 times [2021-06-14 05:31:35,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:35,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898404976] [2021-06-14 05:31:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:35,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:35,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898404976] [2021-06-14 05:31:35,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898404976] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:35,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786569061] [2021-06-14 05:31:35,619 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) [2021-06-14 05:31:35,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-14 05:31:35,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:35,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:35,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:35,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:35,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 05:31:35,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-06-14 05:31:36,000 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:36,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:36,005 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:36,005 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:3 [2021-06-14 05:31:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:36,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786569061] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:36,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:36,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 20 [2021-06-14 05:31:36,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713225285] [2021-06-14 05:31:36,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-14 05:31:36,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:36,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-14 05:31:36,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-06-14 05:31:36,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:36,029 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:36,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:31:36,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:36,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:36,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:36,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:36,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:36,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:36,653 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:36,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:36,653 INFO L82 PathProgramCache]: Analyzing trace with hash 197690554, now seen corresponding path program 4 times [2021-06-14 05:31:36,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:36,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945822342] [2021-06-14 05:31:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:36,717 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:36,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:36,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945822342] [2021-06-14 05:31:36,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945822342] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:36,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384731078] [2021-06-14 05:31:36,718 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 [2021-06-14 05:31:36,744 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 05:31:36,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:36,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-14 05:31:36,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:36,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384731078] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:36,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:36,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-06-14 05:31:36,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343891913] [2021-06-14 05:31:36,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-14 05:31:36,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:36,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-14 05:31:36,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-06-14 05:31:36,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:36,849 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:36,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 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) [2021-06-14 05:31:36,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:36,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:36,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:36,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:36,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:36,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:37,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:37,313 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:37,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:37,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1933966328, now seen corresponding path program 5 times [2021-06-14 05:31:37,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:37,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452186325] [2021-06-14 05:31:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:37,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:37,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452186325] [2021-06-14 05:31:37,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452186325] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:37,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464537813] [2021-06-14 05:31:37,768 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 [2021-06-14 05:31:37,795 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-14 05:31:37,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:37,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-14 05:31:37,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:38,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-06-14 05:31:38,081 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:38,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:38,083 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:38,083 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:3 [2021-06-14 05:31:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:38,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464537813] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:38,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:38,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13] total 28 [2021-06-14 05:31:38,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119778616] [2021-06-14 05:31:38,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-14 05:31:38,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:38,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-14 05:31:38,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2021-06-14 05:31:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:38,121 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:38,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 28 states have internal predecessors, (64), 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) [2021-06-14 05:31:38,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:38,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:38,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:38,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:38,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:38,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:38,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 05:31:39,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:39,166 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:39,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:39,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1063972707, now seen corresponding path program 6 times [2021-06-14 05:31:39,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:39,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402801330] [2021-06-14 05:31:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:39,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:39,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402801330] [2021-06-14 05:31:39,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402801330] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:39,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754300705] [2021-06-14 05:31:39,237 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 [2021-06-14 05:31:39,270 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-14 05:31:39,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:39,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-14 05:31:39,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:39,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754300705] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:39,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:39,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2021-06-14 05:31:39,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879674129] [2021-06-14 05:31:39,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-14 05:31:39,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:39,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-14 05:31:39,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-06-14 05:31:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:39,393 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:39,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 18 states have internal predecessors, (59), 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) [2021-06-14 05:31:39,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:39,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:39,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:39,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:39,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:39,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:39,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 05:31:39,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 05:31:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-14 05:31:39,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-14 05:31:39,954 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:39,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:39,954 INFO L82 PathProgramCache]: Analyzing trace with hash 982565173, now seen corresponding path program 7 times [2021-06-14 05:31:39,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:39,955 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544744901] [2021-06-14 05:31:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 1 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:40,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:40,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544744901] [2021-06-14 05:31:40,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544744901] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:40,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652235170] [2021-06-14 05:31:40,555 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 [2021-06-14 05:31:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:40,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-14 05:31:40,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:41,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-06-14 05:31:41,029 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:41,030 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:41,031 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:41,031 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-06-14 05:31:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:41,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652235170] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:41,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:41,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17] total 36 [2021-06-14 05:31:41,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344500883] [2021-06-14 05:31:41,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-14 05:31:41,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:41,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-14 05:31:41,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2021-06-14 05:31:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:41,069 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:41,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 36 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) [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-14 05:31:41,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 05:31:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-14 05:31:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-14 05:31:44,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:44,368 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:44,368 INFO L82 PathProgramCache]: Analyzing trace with hash -155615592, now seen corresponding path program 8 times [2021-06-14 05:31:44,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:44,368 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734643252] [2021-06-14 05:31:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:45,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:45,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734643252] [2021-06-14 05:31:45,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734643252] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:45,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456626758] [2021-06-14 05:31:45,131 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 [2021-06-14 05:31:45,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 05:31:45,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:45,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-14 05:31:45,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:45,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2021-06-14 05:31:45,809 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:45,810 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:45,811 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:45,811 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:3 [2021-06-14 05:31:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:45,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456626758] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:45,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:45,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21] total 44 [2021-06-14 05:31:45,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770623993] [2021-06-14 05:31:45,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-06-14 05:31:45,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:45,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-06-14 05:31:45,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1734, Unknown=0, NotChecked=0, Total=1892 [2021-06-14 05:31:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:45,838 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:45,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.0) internal successors, (88), 44 states have internal predecessors, (88), 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) [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-14 05:31:45,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-14 05:31:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-14 05:31:48,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-14 05:31:49,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:49,107 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:49,107 INFO L82 PathProgramCache]: Analyzing trace with hash 655735317, now seen corresponding path program 9 times [2021-06-14 05:31:49,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:49,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146561142] [2021-06-14 05:31:49,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 5 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:50,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:50,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146561142] [2021-06-14 05:31:50,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146561142] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:50,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851049624] [2021-06-14 05:31:50,051 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 [2021-06-14 05:31:50,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-06-14 05:31:50,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:50,083 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 58 conjunts are in the unsatisfiable core [2021-06-14 05:31:50,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:51,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:51,889 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-14 05:31:51,890 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:51,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 19 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 55 treesize of output 281 [2021-06-14 05:31:52,397 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 1088 DAG size of output: 665 [2021-06-14 05:31:52,665 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 1108 DAG size of output: 680 [2021-06-14 05:31:53,195 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 648 DAG size of output: 773 [2021-06-14 05:31:53,655 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 643 DAG size of output: 734 [2021-06-14 05:31:54,156 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 639 DAG size of output: 662 [2021-06-14 05:31:54,622 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 636 DAG size of output: 770 [2021-06-14 05:31:54,951 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 296 [2021-06-14 05:31:55,385 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 369 [2021-06-14 05:31:55,832 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 743 [2021-06-14 05:31:56,085 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 1061 DAG size of output: 863 [2021-06-14 05:31:56,838 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 2104 DAG size of output: 1530 [2021-06-14 05:31:57,980 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 2563 DAG size of output: 1892 [2021-06-14 05:31:59,594 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 2774 DAG size of output: 2111 [2021-06-14 05:32:01,794 WARN L205 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 3215 DAG size of output: 2563 [2021-06-14 05:32:04,018 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 3215 DAG size of output: 2563 [2021-06-14 05:32:06,368 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 3218 DAG size of output: 2566 [2021-06-14 05:32:11,032 WARN L205 SmtUtils]: Spent 4.65 s on a formula simplification. DAG size of input: 2423 DAG size of output: 2994 [2021-06-14 05:32:11,493 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 715 [2021-06-14 05:32:11,673 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 531 DAG size of output: 531 [2021-06-14 05:32:11,789 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 303 [2021-06-14 05:32:11,905 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 340 [2021-06-14 05:32:12,525 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 582 DAG size of output: 549 [2021-06-14 05:32:12,951 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 791 [2021-06-14 05:32:13,257 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 994 DAG size of output: 945 [2021-06-14 05:32:13,689 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 1097 [2021-06-14 05:32:14,538 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 693 [2021-06-14 05:32:14,751 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 914 DAG size of output: 783 [2021-06-14 05:32:14,874 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 294 [2021-06-14 05:32:14,995 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 323 [2021-06-14 05:32:15,356 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 635 DAG size of output: 614 [2021-06-14 05:32:15,565 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 895 DAG size of output: 863 [2021-06-14 05:32:15,890 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 1047 DAG size of output: 1004 [2021-06-14 05:32:16,515 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 1614 DAG size of output: 1454 [2021-06-14 05:32:17,734 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 2295 DAG size of output: 2105 [2021-06-14 05:32:19,417 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 2622 DAG size of output: 2453 [2021-06-14 05:32:20,432 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 793 DAG size of output: 796 [2021-06-14 05:32:20,672 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 703 DAG size of output: 826 [2021-06-14 05:32:21,039 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1147 DAG size of output: 888 [2021-06-14 05:32:21,610 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 1340 DAG size of output: 1010 [2021-06-14 05:32:22,440 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 525 [2021-06-14 05:32:23,010 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 424 [2021-06-14 05:32:23,238 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 479 [2021-06-14 05:32:24,007 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 1069 DAG size of output: 735 [2021-06-14 05:32:24,505 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 1448 DAG size of output: 1018 [2021-06-14 05:32:24,956 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 539 DAG size of output: 671 [2021-06-14 05:32:25,134 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 534 [2021-06-14 05:32:25,818 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 736 DAG size of output: 689 [2021-06-14 05:32:25,992 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 896 DAG size of output: 822 [2021-06-14 05:32:26,641 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 545 [2021-06-14 05:32:26,965 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 815 DAG size of output: 668 [2021-06-14 05:32:27,377 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 1422 DAG size of output: 1246 [2021-06-14 05:32:28,130 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 798 DAG size of output: 663 [2021-06-14 05:32:28,377 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 945 DAG size of output: 795 [2021-06-14 05:32:29,150 WARN L205 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 2008 DAG size of output: 1737 [2021-06-14 05:32:30,321 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 2259 DAG size of output: 1989 [2021-06-14 05:32:38,687 WARN L205 SmtUtils]: Spent 8.35 s on a formula simplification. DAG size of input: 8579 DAG size of output: 7072 [2021-06-14 05:32:47,055 WARN L205 SmtUtils]: Spent 8.33 s on a formula simplification. DAG size of input: 8579 DAG size of output: 7072 [2021-06-14 05:32:55,969 WARN L205 SmtUtils]: Spent 8.86 s on a formula simplification. DAG size of input: 8584 DAG size of output: 7077 [2021-06-14 05:33:14,912 WARN L205 SmtUtils]: Spent 18.90 s on a formula simplification. DAG size of input: 6827 DAG size of output: 7988 [2021-06-14 05:33:15,248 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 494 [2021-06-14 05:33:15,574 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 402 [2021-06-14 05:33:15,698 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 376 [2021-06-14 05:33:16,427 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 618 DAG size of output: 523 [2021-06-14 05:33:16,632 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 579 [2021-06-14 05:33:17,612 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 628 [2021-06-14 05:33:18,074 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 1147 DAG size of output: 954 [2021-06-14 05:33:18,824 WARN L205 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 1412 DAG size of output: 1221 [2021-06-14 05:33:19,853 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1498 DAG size of output: 1297 [2021-06-14 05:33:20,004 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 404 [2021-06-14 05:33:20,872 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 552 [2021-06-14 05:33:21,097 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 660 DAG size of output: 596 [2021-06-14 05:33:22,162 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 577 [2021-06-14 05:33:22,666 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 973 [2021-06-14 05:33:24,368 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 348 [2021-06-14 05:33:24,964 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 695 [2021-06-14 05:33:25,196 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 891 DAG size of output: 834 [2021-06-14 05:33:25,307 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 286 [2021-06-14 05:33:25,806 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 551 [2021-06-14 05:33:26,021 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 579 [2021-06-14 05:33:26,365 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 660 DAG size of output: 611 [2021-06-14 05:33:26,863 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 436 DAG size of output: 418 [2021-06-14 05:34:29,460 WARN L205 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 27374 DAG size of output: 26112 [2021-06-14 05:35:23,269 WARN L205 SmtUtils]: Spent 52.93 s on a formula simplification. DAG size of input: 25283 DAG size of output: 24141 [2021-06-14 05:38:47,997 WARN L205 SmtUtils]: Spent 51.33 s on a formula simplification. DAG size of input: 23521 DAG size of output: 23517 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown